Net Pay: What It Is and How to Calculate It
Net pay is what lands in the bank after every deduction. The calculation order, what you may legally deduct, and why disposable earnings differs.
Net Pay
The number that actually reaches the bank, the exact order you have to calculate it in, and the deductions you are not legally allowed to make
Every article about net pay opens with the same formula. Gross pay minus deductions equals net pay. It is printed in every glossary, it wins the featured snippet, and it is true.
It is also close to useless, because it hides the only part that is actually hard. The deductions are not all subtracted from the same number.
Income tax is calculated on gross minus pre-tax deductions. Social Security and Medicare are calculated on the full gross, ignoring those same deductions entirely. Two taxes, two different bases, same paycheck. Which means net pay is not a subtraction at all. It is a sequence, and if you perform the steps in the wrong order you will produce a wrong number while every individual rate you used was correct.
This guide is net pay from the employer side: what it is, the exact order to calculate it in, what you may legally take out of somebody's pay and what you absolutely may not, and the one distinction that quietly costs small employers money, which is that disposable earnings is a completely different number from net pay and the garnishment cap is a percentage of the one you are not thinking of. I build FirstHR, which is not a payroll processor and does not calculate this for you. Your payroll system does. What this article is for is knowing whether the number it produced is right. This is general information rather than legal or tax advice, and wage deduction law varies considerably by state.
What Net Pay Is
Net pay is the amount that reaches the employee's bank account after everything has been taken out. It is the bottom line of the pay stub and the only number most employees ever look at.
Read that last sentence carefully, because it is the part that no glossary bothers with and the part that has actual money attached to it. We will come back to it.
Net pay, take-home pay, net wages, net earnings
All the same thing. Take-home pay is what people say. Net wages is more common in British usage, which is worth knowing because searching that term will surface a great deal of UK material about PAYE and National Insurance that describes a system with no bearing on anything you are legally required to do. Net earnings shows up in some payroll systems and, confusingly, means something entirely different in a self-employment tax context.
The proliferation of names is a small, real source of employee confusion, and there is a trivially cheap fix: label the bottom line of your pay stub in a way a human recognizes. If the stub says NET PAY and your employee has only ever heard take-home, you have manufactured a moment of friction on the single most important line of the document.
The Formula, and Why It Misleads
Here is the formula you will find everywhere, and here is what it conceals.
So the working formula is not one line. It is this:
| Step | Calculation | The base it uses |
|---|---|---|
| Taxable wages | Gross pay minus pre-tax deductions | This intermediate figure is what income tax is calculated on |
| Federal income tax | Withholding from the W-4 and IRS tables | Applied to taxable wages, NOT to gross |
| Social Security | 6.2% up to the annual wage base | Applied to GROSS. Pre-tax deductions do not reduce it |
| Medicare | 1.45%, no cap, ever | Applied to GROSS. Same. Plus 0.9% above $200,000 |
| State and local tax | Varies by state, and by whether the state follows federal pre-tax treatment | Usually taxable wages, but check |
| Net pay | Gross minus pre-tax minus all taxes minus post-tax | The remainder. What you actually deposit |
Notice that gross pay appears as a base twice and taxable wages appears as a base twice, in the same calculation. That is the entire difficulty of net pay compressed into one table, and it is why gross pay is the number you have to nail before anything else, since everything downstream inherits its errors.
The Calculation Sequence
Nine steps, in order, with real numbers. A biweekly employee earning $2,500 gross.
Every figure in that table is illustrative, and the actual income tax withholding depends entirely on what the employee put on their Form W-4, which is collected at hire along with the rest of the tax forms for new employees. The rates that are not illustrative are the FICA ones, and they are worth stating precisely.
Per the Social Security Administration, the 2026 wage base is $184,500, which caps the Social Security tax an employee pays for the year at $11,439. You match that dollar for dollar out of your own pocket. Medicare has no cap at all, and per the IRS, once an employee's wages cross $200,000 in a calendar year you must begin withholding an additional 0.9 percent, on which there is no employer match. The full mechanics are in the FICA tax guide.
The wage base has a visible consequence that will land on your desk. A well-paid employee crosses $184,500 sometime in the autumn, the Social Security line stops appearing, and their net pay jumps. They will assume payroll made an error in their favor and either tell you or quietly worry. Nothing is wrong. In January it resets and their net pay drops back.
Why the Order Changes the Answer
This is the section that justifies the article, so here is the point stated as bluntly as it can be: if you subtract the deductions in the wrong sequence, you get a different number, and it is the wrong number.
Take the employee above. $2,500 gross, a $300 pre-tax deduction, and suppose federal income tax withholding of 9 percent of the applicable base.
| Correct sequence | Wrong sequence | The damage | |
|---|---|---|---|
| Income tax base | $2,200, gross minus pre-tax | $2,500, gross | Overwithholds income tax. The employee lends the government money all year |
| Social Security base | $2,500, the full gross | $2,200, gross minus pre-tax | Underwithholds FICA. You owe the shortfall, and so does your matching half |
| Medicare base | $2,500, the full gross | $2,200, gross minus pre-tax | Same problem. Underwithheld, and it compounds every pay period |
| Who finds out | Nobody, because it is right | The IRS, or the employee in April | One of those is expensive and the other is worse |
The failure mode is subtle because it is internally consistent. Somebody sits down with a spreadsheet, totals the deductions, subtracts them from gross, applies the tax rates to what remains, and produces a clean, plausible, professional-looking number that is wrong in two directions at once. Nothing about it looks like an error. That is precisely why it survives.
What Comes Out
Everything between gross and net falls into three buckets, and which bucket a deduction sits in determines when it comes out and what it reduces.
| Bucket | Examples | When it comes out | What it reduces |
|---|---|---|---|
| Pre-tax | Traditional 401(k), health and dental premiums under a Section 125 plan, HSA, FSA | Before income tax is calculated | Income tax base only. NOT the FICA base |
| Mandatory taxes | Federal income tax, Social Security, Medicare, state and local income tax, state disability where required | After pre-tax, in that order | Net pay. These are the deductions that also define disposable earnings |
| Post-tax | Roth 401(k), union dues, garnishments, wage assignments, charitable giving | Last, after all tax is calculated | Net pay only. No tax benefit at all |
Two of those rows deserve a note.
A Section 125 plan is the mechanism, not the benefit. Health premiums are only pre-tax if they run through a cafeteria plan under Section 125 of the tax code. If you are simply deducting a premium from someone's pay without such a plan in place, that deduction is post-tax, and both you and the employee are paying more tax than you need to. It is a piece of plumbing that a small employer can easily not know exists, and it is worth an hour with an accountant.
Roth contributions look identical to traditional ones and behave in the exact opposite way. Both are retirement savings, both are deducted from the same paycheck, and one comes out before tax and the other after. On the stub they sit two lines apart and the difference between them is the entire tax treatment.
What You May Not Deduct
Now the part that most guides to net pay skip entirely, and the part where a well-meaning small employer is most likely to break the law.
There is a floor under net pay, and the floor is the minimum wage.
The items the DOL specifically identifies as being for the employer's benefit, and therefore subject to this rule, are the ones small businesses most often try to recover:
The arithmetic is simple and worth doing once, because it makes the rule concrete. An employee is paid $8.00 an hour and works thirty hours: they earned $240. The federal minimum for those hours is $217.50. So the absolute maximum you could lawfully deduct for a uniform that week is $22.50, and that assumes no state law is stricter, which it very often is.
Note that this floor is a federal one, and it is the least protective version of the rule you will encounter. Many states restrict wage deductions far more aggressively, and several require written employee authorization for any deduction at all regardless of what it takes them down to. The rule that binds you is whichever is stricter, and the underlying federal framework is the Fair Labor Standards Act.
Disposable Earnings Is Not Net Pay
Here is the distinction that costs employers money, and I have never seen it explained properly on a page about net pay.
When a garnishment order arrives, it tells you to withhold a percentage. That percentage is not a percentage of net pay. It is a percentage of disposable earnings, and disposable earnings is a different number.
The definition is precise and it is not intuitive. Per the DOL, disposable earnings are gross pay minus deductions required by law. Taxes, Social Security, Medicare, mandatory state contributions: those come out. Health insurance premiums, retirement contributions, union dues, charitable giving: those do not, even though every one of them reduces net pay.
Work it through once. An employee has $2,500 gross, $400 in taxes, and a $300 401(k) contribution. Net pay is $1,800. Disposable earnings are $2,100, because the 401(k) does not count. Twenty-five percent of net pay is $450. Twenty-five percent of disposable earnings is $525. You just under-withheld by $75, every pay period, and you are on the hook for it.
The Garnishment Floor
The cap is not simply 25 percent. It is the lesser of two tests, and the second test is a floor designed to protect low earners entirely.
Per the DOL's Fact Sheet 30 on the Consumer Credit Protection Act, for an ordinary garnishment the weekly amount may not exceed the lesser of 25 percent of disposable earnings, or the amount by which disposable earnings exceed 30 times the federal minimum wage, which at $7.25 an hour is $217.50.
The middle band is the one that trips people. Between $217.50 and $290 of weekly disposable earnings, you do not take 25 percent. You take only the amount above $217.50, which is a smaller figure. At $250 of disposable earnings the correct answer is $32.50, not the $62.50 that a straight 25 percent would produce, and withholding the larger number is itself a violation.
And note where the deduction sits in the sequence: a garnishment is a post-tax deduction, taken at the end, after every tax has been calculated. It reduces net pay and it reduces nothing else.
Hourly Staff and Overtime
The net pay sequence for an hourly employee is exactly the same. What differs is how you arrive at gross, and gross is where hourly payroll goes wrong.
Gross for an hourly employee is regular hours at the regular rate, plus overtime hours at one and a half times the regular rate. Simple, except for one thing: the regular rate is not necessarily the hourly wage.
Which is the argument for hours flowing into payroll from an actual timekeeping system rather than being retyped from a sheet of paper. The accuracy of net pay is capped by the accuracy of the hours, and the hours come from your timesheets. Whether the employee is entitled to overtime at all is the prior question, answered in exempt versus non-exempt.
Pay Frequency Changes Net Pay
The annual figures do not change. The individual paycheck does, and in ways that generate questions.
| Schedule | Paychecks a year | What it does to net pay |
|---|---|---|
| Weekly | 52 | Smallest individual checks. Fixed monthly deductions have to be spread across four or five weeks depending on the month |
| Biweekly | 26 | Twice a year there are three paychecks in a month. Many employers do not take the health premium out of the third one |
| Semi-monthly | 24 | Always two per month, which makes fixed monthly deductions clean. But the number of workdays per period varies, which complicates hourly staff |
| Monthly | 12 | One large check. Legal in fewer states than employers assume, and unpopular with employees for obvious cash flow reasons |
The biweekly third-paycheck month is the one that produces email. An employee sees a noticeably larger net pay figure, concludes something has gone wrong, and asks. Nothing has gone wrong: they received a third check that month and their monthly health premium had already been fully collected from the first two. Explaining that once, in advance, is cheaper than explaining it twice a year forever. The wider decision is covered in the pay schedule guide.
When Net Pay Is Wrong
It will happen. What matters is which direction it went, because the fixes are not symmetric and the exposure is not equal.
| The error | What you owe | How urgent |
|---|---|---|
| You underpaid the employee | The difference, and in some states a penalty on top | Immediately. A delay converts an honest error into an ongoing wage violation |
| You overpaid the employee | Nothing, but recovering it is legally constrained | Careful. Many states restrict recovering an overpayment by deduction without written consent |
| You over-withheld tax | The money went to the government, not to you | Correctable, but through a slower administrative process than simply handing it back |
| You under-withheld tax | You may be liable for the tax that should have been withheld | Serious. This is not the employee's problem to solve and the IRS does not treat it as one |
| You under-withheld a garnishment | The creditor can generally pursue YOU for the shortfall | The one nobody expects. Usually caused by applying the cap to net pay instead of disposable earnings |
| The stub was wrong but the pay was right | Potentially a penalty anyway, in states that regulate stub content | Real. In California a missing required field is a violation even where every dollar was correct |
The overpayment row deserves a flag, because the instinct is exactly wrong. When you discover you have overpaid somebody, the natural move is to simply claw it back out of the next check. In a number of states you may not do that without written authorization from the employee, and doing it anyway converts your error into your violation. The correction itself, and its own tax treatment, is covered in retro pay.
And when you do issue a correction, keep both documents. The original and the corrected stub, both dated. A documented correction is evidence of a controlled process. A quietly overwritten one is evidence of nothing at all, which is worse than it sounds, as set out in the pay stub guide.
The First Paycheck Conversation
You are going to have this conversation. It arrives in the first month, it is about the first check, and the tone is somewhere between confused and betrayed.
Nine times out of ten there is no error. They took the salary from the offer letter, divided it by the number of paychecks, and expected that to land in their bank. What landed was about two-thirds of it.
The Employer Checklist
Everything above, compressed into the things to actually verify.
Common Mistakes
The pattern is that almost none of these are arithmetic errors. Every rate was right. What was wrong was the base the rate was applied to, or the order the steps were performed in, or the legal ceiling on how far the number could be reduced at all. Payroll software eliminates the arithmetic and leaves all three of those intact, which is why knowing this is still your job even after you have bought a system to do it.
And the deepest one is the terminology. Net pay, taxable wages, and disposable earnings are three different numbers derived from the same paycheck, and they are not interchangeable. Using the wrong one is not a wording problem. It is a money problem, and it usually runs in the direction that costs you rather than the employee. The broader operational picture is in what is payroll, and the run itself in running payroll.
Frequently Asked Questions
What is net pay?
Net pay is the amount an employee actually receives after every tax and deduction has been taken out of their gross pay. It is the figure that arrives in their bank account, the number at the bottom of the pay stub, and the only one they genuinely care about. It is sometimes called take-home pay, net wages, or net earnings, and all of those mean the same thing. Gross pay is what they earned; net pay is what is left. For a typical US employee the gap between the two is substantial, often around a third of gross, which is why the first paycheck of a new job so reliably produces a surprised question.
What is the net pay definition in simple terms?
Net pay is take-home pay: gross pay minus everything withheld. Everything withheld means federal income tax, Social Security, Medicare, any state and local income tax, the employee's share of health insurance premiums, retirement contributions, and anything else being deducted such as union dues or a garnishment. What is left is net pay. The simplest way to say it to an employee is that gross pay is the number in their offer letter and net pay is the number in their bank, and the difference is not a mistake, it is the taxes and the benefits they signed up for.
How is net pay calculated?
In a specific order, and the order matters. Start with gross pay for the period. Subtract pre-tax deductions, such as a traditional 401(k) contribution and health premiums under a Section 125 plan, which gives you taxable wages. Calculate federal income tax on that reduced figure using the employee's Form W-4 and the current IRS tables. Then calculate Social Security and Medicare on the full gross, not the reduced figure, because FICA ignores pre-tax deductions. Then state and local taxes. Then subtract post-tax deductions such as Roth contributions or garnishments. What remains is net pay. Doing these steps out of sequence produces a wrong number even when every individual rate is correct.
How do you calculate net pay from gross pay?
Net pay equals gross pay minus pre-tax deductions, minus all taxes, minus post-tax deductions. The trap is that the taxes are not all calculated on the same figure. Federal income tax is calculated on gross minus pre-tax deductions. Social Security and Medicare are calculated on the full gross before those deductions. So you cannot simply total the deductions and subtract once. You have to work through the sequence, because a traditional 401(k) contribution reduces the income tax base but does not reduce the FICA base, and treating them the same way is how a calculation that looks right comes out wrong.
What is the difference between gross pay and net pay?
Gross pay is the total earned before anything comes out: base wages plus overtime, bonuses, commissions, and any other earnings for the period. Net pay is what is left after taxes and deductions and is the amount actually deposited. The gap is typically around a third of gross for a US employee, and everything on a pay stub between the top line and the bottom line is an explanation of that gap. There is also a third number that appears on no pay stub at all, which is what the employee costs the employer, and it is higher than gross because of the employer share of payroll taxes.
What is the net pay formula?
The formula usually given is Gross Pay minus Deductions equals Net Pay. It is correct and it is nearly useless, because it hides the only part that is actually difficult, which is that the deductions do not all get applied to the same base. A more honest formula is: taxable wages equals gross minus pre-tax deductions; income tax is calculated on taxable wages; Social Security and Medicare are calculated on gross; and net pay is gross minus pre-tax deductions minus all taxes minus post-tax deductions. That is longer and less quotable, and it is the version that produces the right number.
What is the FICA rate for calculating net pay?
Social Security is 6.2 percent of gross wages up to the annual wage base, which for 2026 is $184,500, meaning the maximum an employee pays in Social Security tax for the year is $11,439. Medicare is 1.45 percent with no cap at all, applied to every dollar. There is also an Additional Medicare Tax of 0.9 percent that you must begin withholding once an employee's wages exceed $200,000 in a calendar year, and there is no employer match on that additional amount. Together the standard employee FICA burden is 7.65 percent, and the employer matches the 7.65 percent out of its own pocket.
Do pre-tax deductions reduce Social Security and Medicare?
No, and this catches almost everyone. A traditional 401(k) contribution reduces the employee's taxable income for federal income tax purposes, so their income tax withholding falls. But Social Security and Medicare are calculated on the full gross wages, before that deduction. So an employee who increases their retirement contribution sees their income tax drop and their FICA stay exactly where it was. On the pay stub this looks like an inconsistency and it is entirely correct. It is also the reason W-2 Boxes 3 and 5 are typically higher than Box 1, which produces a second round of questions every January.
What is the difference between net pay and disposable earnings?
They are different numbers and confusing them is expensive. Net pay is gross minus all deductions, including voluntary ones. Disposable earnings, a term that exists specifically for garnishment purposes, is gross minus legally required deductions only: taxes, Social Security, Medicare, and mandatory state contributions. Health premiums, retirement contributions, union dues, and charitable deductions do not reduce disposable earnings even though they do reduce net pay. Disposable earnings are therefore almost always higher than net pay, and since the garnishment cap is a percentage of disposable earnings, an employer who calculates it against net pay by mistake will withhold too little and remain liable for the shortfall.
Can I deduct anything I want from an employee's pay?
No, and this is one of the more common ways a small employer gets into trouble without meaning to. Under federal law employees must receive their wages free and clear, meaning a deduction that primarily benefits the employer cannot reduce an employee's pay below the applicable minimum wage. So a deduction for a cash register shortage, a broken piece of equipment, a required uniform, a damaged company vehicle, or a customer who left without paying is unlawful if it takes the employee below minimum wage for that week. That remains true even where the loss was genuinely the employee's fault, and it remains true if you ask them to reimburse you in cash instead of deducting it.
How much can be garnished from net pay?
The cap is not applied to net pay, which is the first thing to get right, it is applied to disposable earnings. For an ordinary garnishment such as a consumer debt, the maximum is the lesser of two figures: 25 percent of disposable earnings, or the amount by which weekly disposable earnings exceed 30 times the federal minimum wage, which is $217.50. Below $217.50 of weekly disposable earnings, nothing may be garnished at all. Child support and alimony run on different and higher limits, reaching 50 or 60 percent. Tax levies and certain bankruptcy orders are not subject to these caps.
Does net pay change with pay frequency?
The annual total does not, but the individual paycheck absolutely does, and not always in the way people assume. Semi-monthly pay produces 24 paychecks; biweekly produces 26. The same annual salary therefore lands as a smaller amount, more often, on a biweekly schedule. Deductions with a fixed monthly amount, such as a health premium, have to be spread across whichever number of periods you use, which means a biweekly employee sees a different premium deduction than a semi-monthly one for identical coverage. And in the two months a year where a biweekly schedule delivers three paychecks, many employers do not take the premium out of the third one at all.
Why is my employee's net pay lower than they expected?
Because they were comparing it to gross. This is the single most common payroll conversation there is, and nine times out of ten there is no error at all: they took the annual salary from the offer letter, divided it by the number of paychecks, and expected that figure to land in their bank. What lands is that figure minus federal income tax, minus Social Security, minus Medicare, minus state and often local tax, minus their share of the health premium, minus any retirement contribution. Around a third of gross, gone, and every dollar of it accounted for on the pay stub they did not read.
What does net wages mean?
In the US it means the same thing as net pay: what the employee actually takes home after all withholding. Be careful with the term online, because it is more common in British usage, where the surrounding vocabulary is entirely different: PAYE rather than federal income tax withholding, National Insurance rather than FICA, and a tax code rather than a Form W-4. A search for net wages will return a good deal of UK material that describes a system with no bearing on your obligations as a US employer, and the numbers and forms in it will not transfer.
Is net pay the same as take-home pay?
Yes. Net pay, take-home pay, net earnings, and net wages are all names for the same figure: what lands in the bank after everything has been withheld. The variety of names is one small reason employees find their pay stub confusing, and it is a genuine argument for the simple step of labeling the bottom line on your stubs in plain language. If the line says NET PAY and the employee has only ever heard the phrase take-home, you have created a small, avoidable moment of friction on the single most important line of the document.
What is the employer's liability if net pay is calculated wrong?
It depends on which direction the error went and it is asymmetric. If you underpaid the employee, you owe them the difference, and depending on the state and how long it went on you may owe penalties on top. If you over-withheld tax, the money went to the government and correcting it is a slower administrative process. If you under-withheld, you may be liable for the tax that should have been withheld. And if you under-withheld a garnishment because you applied the cap to net pay rather than disposable earnings, the creditor can generally pursue you for the shortfall, which is the version of this mistake most employers do not see coming.
Do I have to show net pay on a pay stub?
Federal law does not require you to issue a pay stub at all, which surprises most employers. The obligation comes from state law, and most states impose one. Where a state does regulate the content of the wage statement, net pay is essentially always a required item, along with gross pay and an itemization of the deductions between them. In a state such as California, an itemized wage statement that is missing a required item is a violation even if the employee was paid the correct amount, which means the document can be wrong while the money is right.
How do I calculate net pay for an hourly employee with overtime?
The net pay sequence is identical; what changes is how you arrive at gross. For an hourly employee, gross is regular hours at the regular rate plus overtime hours at one and a half times the regular rate. The complication is that the regular rate is not always the hourly wage: if the employee received a nondiscretionary bonus or a shift differential during the period, that has to be folded into the regular rate before the overtime multiplier is applied. Get the regular rate wrong and the overtime is wrong, which makes gross wrong, which makes every tax and every deduction downstream of it wrong.
Does a bonus change how net pay is calculated?
It changes the withholding, not the method. Bonuses and commissions are supplemental wages, and federal income tax may be withheld on them at a flat rate rather than through the normal tables. So an employee who receives a bonus sees a withholding percentage that looks nothing like their usual one and concludes they were penalized for good work. They were not; it is a withholding convention and it evens out when they file. But the conversation is guaranteed, so it is worth being able to explain in one sentence rather than improvising.
Should I use an online net pay calculator?
For a rough estimate, such as sanity-checking what an offer will feel like to a candidate, they are fine and they are quick. For actually running payroll, no. A calculator does not know your employee's Form W-4 elections, does not track their year-to-date wages against the Social Security wage base, does not know which of your deductions are pre-tax under a Section 125 plan, does not deposit anything with the tax authorities, and does not produce the records you are legally required to keep. Use one to estimate. Use a real payroll system to pay people.