What Is Payroll? An Employer Guide

The first time you run payroll, you discover that paying an employee is nothing like paying a bill. What you assumed was a bank transfer turns out to be a tax filing, a deposit schedule, a set of federal forms, a state registration, and a permanent record-keeping obligation, all triggered by hiring one person. This guide explains each of those pieces in plain terms, so you know what you signed up for and what getting it wrong costs.

That gap between what payroll sounds like and what payroll is accounts for most of the trouble small businesses have with it. Nobody is confused about the arithmetic. Multiplying hours by a rate is not hard. What catches people is that the money you withhold from an employee is not your money, the deadlines for handing it over are fixed and unforgiving, and the penalties for missing them can reach past the business to the people who run it.

The guide is written for the person who is running payroll rather than the person who has a payroll department, and it covers the whole thing: what payroll actually means, what it is made of, how the taxes work, a full worked example, how to set it up, how to run it, whether you can do it yourself, and when you should stop.

I build the onboarding paperwork side of this at FirstHR, which is where payroll data comes from in the first place. One caveat that matters more here than anywhere else in this blog: this is tax territory, the figures change annually, and I am not a tax professional. Treat this as a map, not as advice, and confirm the specifics with your accountant.

What Is Payroll?

Payroll is the process of paying your employees: working out what each person earned, withholding the taxes the law requires, paying them what remains, paying the employer's own share of payroll taxes on top, sending all of that money to the IRS and your state on a fixed schedule, filing the required returns, and keeping the records.

Hold on to one phrase in that definition: on a required schedule. The single most useful thing to understand about payroll is that the money you withhold from an employee is not yours and does not stay with you. You are holding it briefly on behalf of the government, and there is a deadline for handing it over that has nothing to do with when you feel like doing your bookkeeping.

Three Meanings

The word gets used in three distinct ways, and mixing them up produces genuinely confusing conversations. Worth separating them once.

Almost every question that brings someone to a page like this one is about the first sense: the process. When an owner asks what payroll is, they are not asking for a dictionary entry. They are asking what they are now responsible for, having just hired somebody, and the honest answer is a list of obligations rather than a definition.

The second and third senses are worth knowing because they show up in ordinary business conversation and in your accounts. Payroll as a cost line is usually the largest expense a small business has, and it is bigger than the sum of the salaries, for reasons the next few sections will make uncomfortably clear.

The Components

Break payroll into its parts and it stops feeling like one large amorphous obligation and starts looking like six manageable ones. Every payroll run, at every company in the country, is some version of these.

Read down that list and notice how much of it is not arithmetic. Classification, deposit scheduling, and record retention are all compliance work, and they are where the actual risk lives. The calculation, the part everyone worries about, is the easiest thing on the list.

Notice also the fourth item, the employer share. Every first-time employer is surprised by it, because it is invisible from the employee side. Your employee sees their gross pay and their deductions on a pay stub. They do not see the additional 7.65 percent you paid on top of their wages, or the unemployment tax you paid yourself, because none of it comes out of their money. It comes out of yours, and it is why a $60,000 hire is not a $60,000 expense.

Who Does Payroll in a Company?

In most small businesses, the owner, the office manager, or an outside bookkeeper does payroll. Larger companies build a payroll department, usually inside finance, with HR feeding it data. No law assigns the job to anyone in particular. The law only cares that the calculations are right and the deposits arrive on time.

The umbrella term for the ongoing work is payroll administration: maintaining pay records, processing each run, tracking rate and rule changes, meeting deposit and filing deadlines, and answering pay questions. A payroll administrator is simply the person who owns that list, whether it is their entire job or one hat among the six they already wear.

So does HR do payroll? At a small business, usually yes, because HR and payroll are the same person. Where the functions split, payroll typically reports to finance rather than HR, because it is a ledger-and-deadlines job. HR owns the people data that feeds it, which is why the handoff between the two is where most errors are born.

None of it has to stay in house. A bookkeeper can run it, software can automate most of it, and a full payroll management service or a PEO (professional employer organization) can take over the filings entirely. The options for a small team are compared in the payroll software guide.

What you cannot hand off is the responsibility. The IRS is explicit that the employer remains ultimately responsible for withheld income tax and both halves of Social Security and Medicare, even when an outsourced provider fails to pay them. The one narrow exception is an IRS-certified PEO, whose customers are relieved of that liability in certain situations.

Whoever does your payroll, keep enough visibility to know the deposits are actually going out.

Gross vs Net Pay

Two numbers that are easy to mix up. Gross pay is what the employee earned. Net pay is what they actually receive.

Everything in payroll is calculated from gross pay. Withholding percentages apply to it, the wage base limits are measured against it, and your employer contributions are computed on it. Net pay is simply what is left over, and it is an output rather than an input. If you find yourself working backwards from a desired net figure, you are doing something unusual called grossing up, and it is harder than it sounds.

The gap between the two is larger than most people expect. Between federal income tax, FICA (the Social Security and Medicare taxes), and state tax, a typical employee takes home meaningfully less than their gross, which is why an employee who negotiated hard for a raise can be underwhelmed by the effect on their paycheck. That is worth understanding before you have that conversation with someone.

Payroll Taxes

Payroll taxes split into two piles: what you withhold from the employee, and what you pay on top of their wages. They are entirely different things, and confusing them is expensive, which is why this is the section that matters.

The IRS overview of employment taxes is the single best starting point if you want the official version of everything in that table, and it is short.

The FICA symmetry is the part to internalize. For Social Security and Medicare, whatever you withhold from the employee, you pay again yourself. Withhold $124 from their check, and you owe another $124 out of your own pocket. That is why the employer share is 7.65 percent of wages and why it is a genuine cost of employment rather than an accounting artifact.

Unemployment tax is different and often forgotten because the employee never sees it. Federal unemployment is 6 percent on the first $7,000 of each employee's wages, but nearly every employer gets a credit for paying state unemployment tax that reduces it to an effective 0.6 percent, or $42 per employee per year.

State unemployment is the wild card: rates vary enormously by state and are experience-rated, meaning a business that lays people off frequently pays more than one that does not. It is the only payroll tax where your own management practices show up on the bill.

All of these together constitute the statutory benefits floor that every employer pays before offering a single voluntary benefit, and for a typical low-risk employer they add up to roughly 8 to 8.5 percent of payroll.

Sitting alongside those taxes is workers' compensation insurance, which is a state mandate almost everywhere rather than a payroll tax but lands on the same budget line. Texas is the outlier: per the Texas Department of Insurance, coverage is optional for most private employers there.

How Federal Withholding Works

Federal income tax withholding is the one number in payroll that is not a flat percentage, and that is why it confuses people. There is no rate. There is a calculation, driven by the employee's W-4 and a set of IRS tables, and it produces a different answer for every person.

The mechanics: you take the employee's gross pay for the period, subtract pre-tax deductions, and then look up the withholding using their filing status and the entries they made on their Form W-4. The IRS publishes the tables in Publication 15-T, which is updated annually and is the actual source you use rather than any percentage you may have in mind.

For a small business doing this manually, the Wage Bracket Method is the one to use. You find the table for your pay frequency, find the row for the employee's wages, find the column for their filing status and whether they checked the multiple-jobs box, and the number in that cell is your starting point. For an employee with nothing entered in Steps 3 or 4 of the W-4, it is genuinely a lookup, not a calculation.

Worksheet 2 in Publication 15-T handles everyone else: a few lines of simple arithmetic adjust for dependent credits, other income, deductions, and extra withholding. The wage bracket tables only reach annual wages of generally less than $100,000, and above the last bracket you switch to the Percentage Method.

Two further points. First, an employee who had no tax liability last year and expects none this year may claim exemption from federal income tax withholding on their W-4, and that exemption expires annually. Per IRS Topic 753, a W-4 claiming exempt is valid only for the calendar year it was given to you.

To keep the exemption going, the employee must hand you a new form claiming exempt by February 15 (the next business day if that date falls on a weekend or legal holiday). If they do not, you withhold as single or married filing separately with no other entries in Steps 2, 3, or 4.

Second, an ordinary W-4 has no expiry. Per IRS Publication 15, it remains in effect until the employee gives you a new one, so the form you collected three years ago is still the operative document. Employees can update it whenever they like, and you should let them.

A Worked Example

Abstract percentages are hard to hold on to. Here is a single employee, a single biweekly pay period, worked all the way through from gross to net and then out to what it actually costs you.

Three things are worth pulling out of that table. First, the employee earned $2,000 and received $1,495.18, a gap of just over a quarter of their gross. Second, you spent $2,162.62, which is more than the $2,000 you thought you were spending. Third, the difference between what the employee received and what you paid out is $667.44, and most of it went to the government, in two directions, on two different schedules, with the rest going to the health plan.

Multiply the employer FICA by 26 pay periods and you get roughly $3,740 a year on top of the $52,000 salary. Unemployment tax adds less than you would guess, because it applies only to a capped slice of wages. FUTA stops at the first $7,000, which this employee passes in the fourth paycheck, so it comes to $42 for the year.

State unemployment tax runs on a wage base each state sets, from $7,000 up to $78,200 according to the Department of Labor's summary of state unemployment laws (January 2026). At the 0.4 percent state rate built into the example, that adds somewhere between about $28 and $200.

Call it $3,800 to $4,000 in employment taxes before you have offered health insurance, retirement, or a single day of paid leave. That is the number that should be in your head when you budget a hire, and it is the number missing from most hiring plans I have seen.

How to Actually Run It

Everything above describes what payroll is. What follows is how it actually gets done.

The short version, so you know what you are dealing with: a payroll run is nine steps, and paying your employees is step eight. The ninth is depositing the taxes you withheld, on a schedule assigned by the IRS that has nothing to do with your payday. Missing that distinction is how a business that paid everyone on time still ends up with failure-to-deposit penalties.

Before the first run you need an EIN (your federal Employer Identification Number), state withholding and unemployment registrations in every state where an employee works, an enrollment in EFTPS (the Treasury's electronic system for federal tax deposits), and a signed W-4 and completed I-9 for each person. Two of those take weeks rather than minutes, which is why the time to start is when you decide to hire rather than the week they arrive.

Whether you do it manually, with software, or by handing it to someone else is a separate question, and the honest framing is that you are buying deadline compliance rather than arithmetic.

Can you do payroll yourself? Yes. Nothing requires a service or a department, and for a small team in one state, doing your own payroll is genuinely practical: the withholding is lookup tables and the deadlines fit on one calendar page. The honest boundary is complexity, not competence. A second state, tipped staff, or a garnishment order is each a good moment to stop.

Calculating Pay

Gross pay is where every payroll run starts, and it is rarely as simple as hours times rate. Overtime has its own arithmetic, deductions come out in a specific order, bonuses are withheld differently, and tips and garnishments each carry rules of their own. This section is the arithmetic in full.

Overtime and the Regular Rate

Overtime is time and a half over 40 hours in a workweek for non-exempt employees. That part is familiar. The part that is easy to miss is that you multiply by the regular rate, not the hourly wage, and multiplying by the wage underpays overtime in any week the employee earned extra pay that counts toward the regular rate, such as a nondiscretionary bonus.

Per the Department of Labor (DOL) Fact Sheet 23, the law requires overtime at one and a half times the regular rate, and the regular rate is a calculated figure: total pay for the week, excluding a short statutory list of exclusions, divided by total hours actually worked. If an employee earned anything beyond their base hourly wage that week and it is not on that exclusion list, the regular rate is higher than their wage, and so is their overtime.

Practically, the trap works like this. You announce a $100 monthly safety bonus, which feels like a generous gesture entirely separate from wages. It is not separate. It raises the regular rate of every non-exempt employee who receives it, in every week they worked overtime, which means it retroactively raises the overtime you owed. If the bonus covers a period longer than a week, you have to apportion it back across the weeks it was earned and pay the additional overtime premium for each.

Three more things worth knowing. Overtime is calculated per workweek, a fixed and recurring 168-hour period, not per pay period: an employee who works 50 hours one week and 30 the next has 10 hours of overtime, not zero, even though the biweekly total is 80.

Paid time off is not hours worked, so a week with 8 hours of holiday pay and 36 hours worked contains no overtime. And some states impose daily overtime rules on top of the federal weekly one, so check yours.

Two adjacent rules belong here too. Overtime applies only to non-exempt employees, and the exempt versus non-exempt test is a legal one rather than a matter of job title or salary alone. Calling someone a manager and paying them a salary does not make them exempt.

The second is that offering time off instead of overtime pay, known as comp time, is generally not legal for private-sector employers, however reasonable and however mutually agreeable it sounds.

The whole framework, including the overtime threshold itself, sits under the Fair Labor Standards Act (FLSA), which is the single statute most worth understanding if you employ hourly people.

Pre-Tax vs Post-Tax Deductions

Deductions come out in a specific order, and the order determines how much tax the employee pays. Pre-tax deductions reduce taxable wages before withholding is calculated. Post-tax deductions come out of what is left. Same dollar, very different effect.

Notice the asymmetry in the third column: a traditional 401(k) contribution escapes federal income tax (and state income tax in most states) but not FICA, while a Section 125 health premium escapes both.

A health premium taken pre-tax through a proper cafeteria plan is therefore genuinely valuable to both sides: it lowers the employee's taxable wages and it lowers your own employer FICA, because you are matching on a smaller number. It is one of the very few places where a benefit costs the employer less than its face value.

Getting the order wrong is a real error rather than a rounding issue. If you take a pre-tax deduction after calculating withholding, you have over-withheld and the employee has overpaid tax all year. It is fixable, and it is annoying, and it is exactly the kind of quiet mistake that manual payroll produces.

Bonuses and Supplemental Wages

Bonuses are not taxed differently, despite what everyone believes. They are withheld differently, which feels the same on payday and is not the same at all when the tax return is filed.

The IRS calls them supplemental wages: anything that is not a scheduled regular wage. Bonuses, commissions, overtime pay, severance, back pay, retroactive raises, awards, prizes, taxable fringe benefits, and payouts of accumulated leave all qualify.

You have two methods. The flat-rate method, above, is simplest: pay the bonus separately, withhold 22 percent, done. The aggregate method combines the bonus with the regular paycheck and runs the whole thing through the normal withholding tables, which usually withholds less on modest bonuses but requires more work. Either is acceptable. Most small businesses use the flat rate because it takes ten seconds.

The conversation to have with your employee before you pay the bonus, not after: they are going to see 22 percent go to federal income tax, plus FICA, plus state tax, and the check will be substantially smaller than the number you announced. That is not a mistake and it is not you being cheap, it is withholding. Say so in advance, because otherwise a bonus intended as a thank-you arrives as a disappointment.

And the connection back to the previous section: if that bonus is nondiscretionary and goes to a non-exempt employee who worked overtime, it also raises their overtime rate. A bonus is never just a bonus.

Retroactive Pay and Back Pay

Retroactive pay is money you owe for work already done and already paid for, at a rate that turned out to be wrong. A raise approved in March but effective from January. An overtime error you found and are correcting. A misclassification you unwound.

It is not complicated, and the five questions below cover it.

The overtime interaction is the one people miss and it follows directly from the regular-rate rule. If you retroactively raise a non-exempt employee's hourly rate, and they worked overtime in the covered weeks, their regular rate for those weeks was higher than you calculated at the time, and so was the overtime premium you owed. Correcting the base rate without correcting the overtime leaves you still underpaid, which is a genuinely common way that a good-faith fix stays broken.

Practical guidance: pay it promptly and label it clearly on the pay stub as retroactive pay for the relevant period. An employee who receives an unexplained extra amount will assume it is a bonus, and an employee who receives an underexplained correction will assume you were caught. Neither is what you want.

Tipped Employees and the Tip Credit

If you run a restaurant, bar, salon, or anything else where customers tip, payroll works differently, and the differences carry some of the most litigated rules in wage and hour law. This section is federal baseline; your state is very likely stricter.

The core mechanic is the tip credit: federal law lets you count a portion of an employee's tips toward your minimum wage obligation, which means you may pay a cash wage below the minimum wage, provided tips make up the difference.

Beyond the arithmetic, the tip credit comes with conditions. Advance notice is mandatory: you must tell tipped employees, before you take the credit, what cash wage they receive, how much credit you are claiming, and that they keep all their tips subject to a valid pool. Tips belong to the employee, always, whether or not you take a tip credit, and neither the employer nor managers and supervisors may keep any part of them.

Tip pools are permitted, but if you take a tip credit the pool is limited to employees who customarily and regularly receive tips, which excludes cooks and dishwashers. And a service charge is not a tip: a compulsory 18 percent added to a bill is your revenue, and when distributed to staff it is wages rather than tips.

Two more traps. Deductions for breakage, walkouts, or register shortages are illegal where you claim a tip credit, because any such deduction pushes the employee below the minimum wage.

The second trap is state law, which very likely overrides some of this: several states require a substantially higher cash wage, and some prohibit the tip credit entirely, meaning you pay full minimum wage and tips are on top. The stricter rule always wins. If you are building a pay structure on $2.13, confirm your state permits it before you do.

Garnishments and Wage Orders

Sooner or later an envelope arrives instructing you to withhold part of an employee's wages and send it to a third party. This is a garnishment, it is a court or agency order rather than a request, and you do not have the option of ignoring it.

Two things govern how much you withhold: the type of debt, and the federal cap on how much can be taken. Withhold too little and you can become liable for the shortfall yourself. Withhold too much and you have illegally underpaid your employee.

Different debts have different rules and a general priority order. When several orders arrive for the same employee and disposable income cannot cover them all, the list below is the usual sequence, though timing and state law can change it.

Child support is the one you will most likely encounter, and its limits sit far above the consumer-debt cap: up to 60 percent of disposable earnings, and up to 65 percent with the arrears surcharge. That can be a very large fraction of a paycheck, and if the order says so, that is what you withhold. The federal Office of Child Support Enforcement publishes employer guidance on income withholding, which walks through the order process from your side of it.

Practical guidance: when the order arrives, read it, calculate against disposable earnings rather than net pay, note the effective date, and respond by whatever deadline the order specifies. Many orders require an employer answer, and ignoring one can make you liable for the amount you should have withheld, plus penalties. If a state garnishment law is stricter than the federal cap, the stricter one applies and the employee keeps more.

Paying People

Three practical questions once the numbers are right: how often you pay, how the money actually reaches them, and what you have to show them and keep. Plus the one deadline that can arrive with no notice at all, which is the final paycheck.

Choosing a Pay Schedule

How often you pay is a real decision with real consequences, and the correct answer for most small businesses is biweekly. Here is why, and what the alternatives cost.

Biweekly wins for most businesses because it splits the difference: half the administrative load of weekly, and far kinder to your employees than monthly. Its one quirk is that 26 pay periods do not divide evenly into 12 months, so two months a year contain three paydays. That is not a problem, but it does surprise the cash flow of anyone who budgeted as though there were always two.

Biweekly is also the most common choice among private employers in the US, though not a majority one. According to the Bureau of Labor Statistics pay period study (February 2023), 43.0 percent of private establishments pay every two weeks, 27.0 percent weekly, 19.8 percent semimonthly, and 10.3 percent monthly.

Check your state before you commit. Some states mandate a minimum pay frequency, and some set different rules for hourly versus salaried workers, or for specific industries. Monthly pay in particular is restricted in a number of states.

Whatever you pick, write it down, put it in the employee handbook, and do not change it casually. Employees plan their lives around payday, and moving it is a bigger deal to them than it is to you.

Paydays also interact with paid holidays in ways that trip people up. A payday falling on a bank holiday moves, which shortens your processing window.

Payment Methods

Four ways to get the money to the employee, and the rules on which you may require are set by your state rather than by you.

Direct deposit is what almost everyone uses and it is the right default. The federal limit on it is narrow but firm: under the Electronic Fund Transfer Act rules at 12 CFR 1005.10(e)(2), nobody may require a worker to open an account at a particular institution as a condition of employment, so an employee always picks the bank.

State law is where the real restriction sits, and in many states you also need the employee's consent before paying electronically at all. Check yours before you announce a policy, and offer a real alternative for anyone who does not have a bank account.

Offering a payroll card as that alternative is common, and payroll cards are regulated precisely because they have historically been abused with fees. If you offer one, make sure the employee can access their full wages without cost.

One timing point belongs in this section: direct deposit takes days, not seconds. Your bank has a cutoff, and initiating a transfer on payday morning generally means the money arrives after payday. Learn your lead time and build your payroll calendar backwards from payday, not forwards from when you feel like doing it.

Cash deserves a short word: it is legal, but everything that makes payroll defensible (the records, the stubs, the traceability) is harder with cash, and the burden of proving you paid someone falls on you. Do not pay wages in cash.

Pay Stubs and Registers

Two documents that sound like bureaucracy and are actually your evidence. The pay stub is what the employee gets. The payroll register is what you keep. You need both, and in many states the first one is a legal requirement rather than a courtesy.

There is no federal law requiring a pay stub. There are, however, state laws in many states requiring one, and they specify what it must contain. The common denominator across those requirements is simple: an employee should be able to look at the stub and reconstruct exactly how the number in their bank account was arrived at.

The payroll register is the internal counterpart: one row per employee per pay run, showing the same figures plus your employer tax liability. It is the document you reconcile against your Form 941 each quarter, and it is the first thing anyone asks for in an audit or a wage claim. If you run payroll in a spreadsheet, your spreadsheet is the register, and it needs to be preserved rather than overwritten each period.

The failure mode here is a business that pays everyone correctly, keeps no register, and then cannot prove it. In a wage dispute the absence of records is not treated as neutral.

The rule comes from the Supreme Court. In Anderson v. Mt. Clemens Pottery Co. (1946), the Court held that where the employer's records are inadequate, an employee who proves unpaid work and shows its amount by just and reasonable inference shifts the burden to the employer, who must then produce precise records or disprove the estimate. In plain terms: without good records, the employee's reasonable estimate stands unless you can disprove it.

Final Paychecks

When someone leaves, the deadline for their final paycheck is set by state law, and in some states it is immediate. This is one of the sharpest edges in payroll and one of the least known, because it is the rare deadline that can arrive with no notice at all.

The PTO payout question is separate and equally state-dependent. In a handful of states, accrued vacation is treated as earned wages that cannot be forfeited and must be paid out at separation regardless of what your policy says. In most states, payout is required only if your own policy promises it, which means your handbook is the thing that binds you. Either way, decide the answer before someone resigns, because deciding it afterward looks like exactly what it is.

Practically: build the final-paycheck calculation into your employee exit process rather than treating it as a payroll task that happens later. Final hours, final overtime, PTO payout if owed, expense reimbursements, and the removal of any recurring deductions. Then check your state's deadline, and work backwards from it.

Deposits and Filing

Here is the distinction that earns its own section: your deposit schedule is not your pay schedule. They are set by completely different rules and they do not line up.

For a small business the practical picture is simple. You are almost certainly a monthly depositor, which means the taxes on everything you paid in January are due by February 15, regardless of whether you ran payroll twice or four times that month. That is the deadline that matters, and it does not move because you were busy.

Federal deposits must be made electronically, in practice through EFTPS, the free Treasury system. There is no paper option for most employers. Full details on what is owed when are set out in the IRS guidance on depositing and reporting employment taxes, which is worth reading once properly rather than skimming.

Two IRS pages are worth bookmarking rather than reading once: the employment tax due dates, and the failure-to-deposit penalty schedule, which sets out precisely what being late costs and how it escalates.

State deposits and filings run on their own separate calendar, with their own forms, in every state where you have an employee. If you employ people in three states, you have three additional sets of deadlines on top of the federal ones. Every added state multiplies the calendar you have to keep.

Year-End Payroll

January is the busiest month in payroll and almost all of the pain is avoidable, because the work that makes January hard is work you should have done in December.

The forms themselves: Form W-2 goes to employees and to the Social Security Administration, which runs the electronic filing system most employers use.

Look back at the When column of the filing table: January 31 appears five times. Form 944 for the few employers the IRS assigns to it, Form 940, W-2s to employees, W-2s to the SSA, and 1099-NECs to contractors, which go to the IRS that day too. That single date is the busiest in the payroll calendar, and it arrives one month after the holidays, which is not an accident of design but is certainly an accident of timing.

The gift card item is the one I would flag. If you handed out gift cards as a thank-you at any point during the year, those are taxable wages, at any amount, and they belong on the W-2. Cash equivalents have no de minimis exclusion. It is a strange rule and it is the rule, and December is when you discover you should have been tracking them.

Contractors and Owners

Not everyone who gets money from your business goes through payroll. Contractors do not, and depending on how your business is structured, neither do you. Both distinctions carry real consequences, and both are commonly gotten wrong.

Employees vs Contractors

Only employees go through payroll. Contractors do not, and understanding the line between them is a compliance necessity rather than an accounting nicety, because getting it wrong can leave you liable for the employment taxes that should have been withheld and paid, plus penalties and interest.

The temptation is obvious and it is a trap. Paying someone as a contractor makes every column in that table disappear: no withholding, no employer FICA, no unemployment tax, no overtime obligation. It looks like a discount on employing someone. It is not a discount, it is a classification, and the classification is determined by the nature of the working relationship rather than by what you decide to call it or what the person agrees to sign.

If you control what the work is, when it happens, and how it gets done, that person is very likely an employee regardless of the label on their contract. The IRS and the Department of Labor both take a hard line, back taxes plus penalties are the standard remedy, and the person themselves can trigger the review by filing a form asking the IRS to determine their status.

Some states apply a stricter test than the federal one. California's AB5 law is the best known: its ABC test treats a worker as an employee unless the business proves all three conditions, which means passing the IRS test does not automatically mean passing your state's. Check both.

Paying Contractors

Contractors do not go through payroll, but they do land on the same desk, at the same time of year, with their own set of rules. Worth covering because most small businesses have both, and because the contractor process is genuinely simpler in a way that makes the payroll process look worse by comparison.

The forms themselves are simple and the IRS publishes both: Form W-9 for collecting the taxpayer ID, and Form 1099-NEC for reporting what you paid.

The dollar threshold in that fourth row is the one most people still get wrong, because it moved. According to the IRS Instructions for Forms 1099-MISC and 1099-NEC (December 2026 revision), the reporting threshold rose from $600 to $2,000 for payments made on or after January 1, 2026, and is indexed for inflation in later years. The first filings under the new figure are the ones you send in early 2027, so any 1099 you issued for the 2025 tax year correctly used $600.

Two cautions about the new threshold. Your state may still apply its own lower threshold, so a payment that escapes a federal 1099 can still require a state one. And the threshold governs reporting, not taxability: a contractor owes tax on every dollar you paid them whether or not a form goes out.

The W-9 is the step that gets skipped and then hurts. If you have paid a contractor $9,000 across the year and you do not have their taxpayer identification number in January, you are now chasing someone who no longer works for you for a document they have no incentive to send. Collect the W-9 before the first payment, every time, without exception. It takes them two minutes in month one and it is a genuine problem in month twelve.

Note what is absent from that table: no withholding, no employer taxes, no deposit schedule, no quarterly filing. That absence is exactly why misclassification is tempting and exactly why it is policed. The simplicity is not a loophole you have discovered. It is the correct treatment for a genuinely independent contractor, and it is a serious liability for anyone else.

How to Pay Yourself

Here is a question with a genuinely different answer than every other question in this guide, and one that a great many owners get wrong for years: can you put yourself on payroll? It depends entirely on how your business is structured, and for two of the three common structures the answer is no.

Start with what surprises people most. If you are a sole proprietor, or a single-member LLC that has not elected corporate treatment, you cannot be your own employee. There is no employer and no employee, there is only you. You do not issue yourself a W-4, you do not withhold, you do not get a W-2, and you cannot run yourself through payroll even if you want to.

Instead, you take an owner's draw, which is simply moving money from the business to yourself, and you pay self-employment tax on the business's profit through your personal return and quarterly estimated payments.

Partnerships work the same way. Partners are not employees, they take draws or guaranteed payments, and they get a Schedule K-1 rather than a W-2. If you are in a multi-member LLC taxed as a partnership, this is you.

The S corporation is where it changes, and where the interesting problem is. As an S-corp shareholder who works in the business, you are an employee. You go on payroll properly: W-4, withholding, FICA, W-2, the whole apparatus. And you can also take distributions of profit, which carry no FICA at all. That gap is the entire tax appeal of the S-corp election, and it is also the trap.

The practical shape of the problem is a temptation. Wages get FICA at 15.3 percent combined; distributions do not. So the arithmetic says pay yourself as little salary as possible and take the rest as distributions. The IRS is entirely aware of this arithmetic, which is why the reasonable compensation rule exists, and low salary against high distributions is a documented audit flag. A zero salary while taking substantial distributions is not aggressive tax planning; it is the pattern the rule was written to stop.

What reasonable actually means: what you would have to pay someone else to do what you do. Not a percentage of revenue, not a percentage of profit, not what you personally need to live on. Market rate for your labor, considering your duties, your hours, your industry, your experience, and what you pay everyone else. Document how you arrived at the number, revisit it annually, and be able to explain it to a stranger. That documentation is the defense, and it costs you an afternoon.

Two closing notes for owners. Paying yourself too much also has a cost, since every dollar above reasonable is an unnecessary 15.3 percent, so the goal is defensible rather than minimal or maximal. And whichever entity you are, the IRS publishes its own summary at Paying Yourself, which is worth reading. This is the single area in payroll where I would most strongly say: talk to an accountant before you decide, not after. The tax difference is large and so is the downside of getting it wrong.

Staying Accurate

Staying accurate comes down to three habits: check every run before you release it, reconcile against Form 941 every quarter, and make sure one person is not doing every step unwatched. The sections below cover the mechanics of each, plus how payroll lands in your books, what it really costs, and the controls that make fraud hard.

Fixing Payroll Mistakes

You will make a mistake eventually. Everybody does. What separates a manageable error from an expensive one is how fast you catch it and whether you correct it properly, so it is worth knowing the mechanics before you need them.

The two forms you will most likely need are on the IRS site: Form 941 and its correcting counterpart, and Form 940 for federal unemployment.

The overpayment row surprises people. Having accidentally paid someone too much, you would think you could simply take it back out of the next check. In many states you cannot, not unilaterally, and doing so is itself a wage violation. You have to ask, agree on a repayment, and document it. This is a good reason to check a payroll run before you send it rather than after.

The general principle across every row: self-correcting is always cheaper than being found. Penalties for errors you discover and fix are lower than penalties for errors an agency discovers, and the difference is not marginal. If you find something wrong, fix it now, even if fixing it is embarrassing.

Reconciling Payroll

Reconciliation is checking that your own numbers agree with each other. It is dull, it takes twenty minutes, and it is the single highest-return habit in payroll because it catches errors while they are still small.

Three reconciliations matter, at three different frequencies.

The quarterly reconciliation against Form 941 is the one to be religious about. That form is a sworn statement of what you paid and what you withheld, and the IRS reconciles it against what you deposited. A mismatch generates a notice. If your register and your 941 agree, and your deposits match your 941, you are in a defensible position no matter what else happens.

All three are the same motion at three scales: put the two sources side by side, subtract, and write an explanation next to any difference rather than leaving the cell to be puzzled over later. The worksheets that carry the habit run by run and quarter by quarter are in the payroll reconciliation guide.

The mundane truth of small business payroll is that most errors are not sophisticated. They are a duplicated row, a wrong rate, a deduction that should have stopped three months ago and did not. Twenty minutes of looking finds them.

Payroll Accounting

Payroll hits your books in more places than people expect, and understanding the shape of it explains something important: the money you withhold is a liability, not an expense, and treating it as anything else is how businesses spend money that was never theirs.

Read the second row again, because it is the whole point of this section. Withheld tax is a liability. It appears on your balance sheet as money you owe. It is not revenue, it is not profit, and it is not available. The reason a business can be profitable and still fail on payroll taxes is that the withheld money sits in the bank account looking exactly like every other dollar in there, and nothing about a bank balance tells you which dollars are yours.

The other thing the table shows is why your true payroll cost is the gross plus the employer taxes, not the net. If you pay someone $2,000 gross and $1,495.18 net, your wage expense is $2,000. The $504.82 difference did not vanish; you routed most of it to the government on the employee's behalf and the rest to their health plan. Owners who think of payroll as the sum of the net checks systematically underestimate their largest expense.

Practically, for a small business: get your payroll into your accounting system, either through an integration or a journal entry each run, and make sure the withheld amounts land in a liability account rather than being netted against wages. Then look at that liability account. If it is growing and the deposits are not going out, you have a problem, and the balance sheet will tell you before the IRS does.

Budgeting for Payroll

Payroll is almost always the largest expense a small business has, and it is consistently underestimated, because the number people budget is the salary and the number that leaves the bank account is considerably larger.

That multiplier is not a folk rule. According to the Bureau of Labor Statistics Employer Costs for Employee Compensation survey (June 2026), private industry employers spent an average of $46.89 per hour worked on total compensation, of which $32.82 was wages and salaries and $14.07 was benefits. Benefits were 30 percent of the bill, which puts the average fully loaded cost at roughly 1.4 times wages.

The practical rule I would give any owner: never say a salary number out loud until you have multiplied it by 1.3. A $70,000 hire is a $90,000 decision once employment taxes, workers' compensation, and a modest benefits package are counted. If the $90,000 works, make the offer. If only the $70,000 works, you cannot afford the hire, and finding that out before the offer is considerably better than finding it out in month three.

The other budgeting reality is timing. Payroll is a fixed, recurring, non-deferrable outflow. Your customers may pay late. Your employees will not accept being paid late, and in most states they are legally entitled not to be. That asymmetry is why payroll should have its own cash reserve rather than competing with everything else for whatever is in the account on the 15th.

Payroll Fraud and Controls

Payroll fraud is a small business problem precisely because the business is small. Fraud requires opportunity, and opportunity is created by one person doing every step alone with nobody checking. That describes payroll at most small companies.

The controls in that third column are all versions of the same idea: separate who does payroll from who approves it. In a business with three people that sounds impossible, and it is not. If the office manager runs payroll, the owner looks at the register before it goes out. Five minutes, every other week. That single habit closes most of the schemes above, because every one of them requires nobody looking.

The ghost employee case is worth naming specifically because it is the one that runs longest. Nobody notices a name on a payroll register that should not be there, because nobody reads the payroll register. Look at the list of people you are paying, once a quarter, and ask whether you can picture each one of them.

The State Layer

Everything above this section is federal, and federal is the easy half. State payroll rules are numerous, they vary enormously, they change annually, and critically, they follow the employee's work location rather than your office. This is the section that catches distributed teams.

The scaling is genuinely brutal, and it is the honest answer to why multi-state payroll pushes people onto software. One state is a set of rules you learn once and then know. Three states is three sets of registrations, three withholding regimes, three unemployment rates, three filing calendars, and three sets of rules that all change independently every January.

The work does not triple. It does something worse than triple, because you now also have to remember which rule belongs to which person. The multi-state guide linked above carries a state register for that problem: one row per state, holding each account number, assigned rate and deposit schedule, which is the practical way to keep it all straight.

Two specifics worth knowing. First, reciprocity agreements exist between some neighboring states, and they change the answer to which state you withhold for. Where an agreement is in place, an employee who lives in one state and works in another may have income tax withheld for their home state rather than their work state, provided they file the right certificate with you.

Where no agreement exists, you generally withhold for the work state and the employee sorts out their home state on their own return. If you have cross-border commuters, this is worth ten minutes of checking rather than assuming.

The second is new hire reporting, a small obligation with a firm deadline. According to the federal Office of Child Support Enforcement, employers must report basic information on every new and rehired employee to the state directory in the state where that employee works within 20 days of hire, and some states require it sooner.

New hire reporting exists primarily to enforce child support orders. It takes minutes, it is easy to forget entirely, and it carries penalties. Build it into your onboarding checklist so it happens automatically rather than depending on someone remembering.

Where Data Comes From

Payroll does not generate its own inputs. Every number in a payroll run originates somewhere else, and for a small business that somewhere else is almost always onboarding. This is the connection nobody draws, and it explains why payroll feels so much harder than it should.

Look at the failure column. Every one of those is an onboarding failure that only becomes visible as a payroll failure, usually weeks later and usually at the worst moment. The W-4 that was never collected does not announce itself until the first pay run. The I-9 deadline passes silently. The direct deposit details are missing on payday.

This is the thing I built FirstHR to fix, and I want to be straightforward about the scope: we do not run payroll. We are not a payroll provider and this article is not a pitch for one. What we do is the layer underneath, which is collecting and holding the paperwork that payroll consumes. Digital W-4 and I-9 collection with e-signature, so the forms exist and are signed before day one rather than chased afterward. Employee records in one place, so the work location and the classification and the bank details are retrievable rather than scattered across an inbox. The new hire paperwork is the input to payroll, and getting it right at the start is what makes payroll boring instead of frightening.

The other half of the fix is letting people maintain their own details rather than emailing you about them. An employee self-service portal removes an entire category of chasing, because the address change and the new bank details arrive without anyone having to remember to ask.

The honest version of the value here: fixing your onboarding paperwork does not make payroll simple. It removes the specific category of payroll problem that comes from not having the documents you need, which in my experience is most of them.

Recordkeeping

You have to keep the records, the periods are longer than you think, and they differ by document type in ways that are genuinely confusing. This is the part everyone gets wrong because it is boring and there is no deadline reminding you.

The practical advice is to ignore the distinctions and keep everything for four years. The differences between two, three, and four years are legally real but operationally useless: no small business is going to run a document retention policy that shreds time cards at 24 months and payroll registers at 36. Keep it all for four years, keep I-9s according to their own rule, and you have covered every requirement without having to think about it again.

Where these records actually live is its own question, and the answer is not an inbox. The personnel file is the structure they belong in.

Per the Department of Labor's recordkeeping guidance under the FLSA, there is no required form for the records, but the information itself is mandatory, and the records may be kept at the place of employment or in a central records office. The point is not the format. The point is that if someone asks what you paid a specific person in a specific week two years ago, you need to be able to answer, and answer accurately.

Common Mistakes

Some payroll mistakes are embarrassing. A few are genuinely expensive, and a couple can reach past the business to you personally. Worth knowing which is which.

The last one needs saying out loud because it is the one that ends businesses. The money you withhold from an employee's paycheck is not revenue and it is not working capital. It is trust fund money: you are holding it on their behalf, briefly, before handing it to the government. When a business hits a cash crunch, that money is sitting in the account, and it looks available. It is not.

Unpaid trust fund taxes can be assessed against the individuals responsible for paying them, personally, which means the corporate form does not protect you the way it does for ordinary business debts. Anyone with authority over which bills get paid can be on the hook. If you are ever in a position where paying the taxes means not paying a vendor, pay the taxes. That is the one bill where the consequence of not paying follows you home.

Classification is the other one worth genuine care. It is easy to get wrong in good faith, it is expensive to unwind, and the exposure accumulates quietly the whole time you are wrong. If you are unsure whether someone is an employee or a contractor, resolve that question before you pay them, not after.

Payroll Terms

The vocabulary is dense and the acronyms are unhelpful. Here is the working set, in one place, so you can stop looking them up.

Two of those are worth flagging as more consequential than they look. Trust fund taxes, because the term explains the entire severity of payroll compliance in two words. And exempt versus non-exempt, because it determines who is owed overtime, it is a legal test rather than a matter of job title or salary alone, and getting it wrong produces back-pay claims.

Before your next pay run, check yourself against these six questions.

Frequently Asked Questions