Startup HR Checklist: What to Do at Each Hiring Milestone

My first hire started on a Monday. The Friday before, I had a two-page document about how we give feedback, a slide deck about our values, and no workers compensation policy. The values deck had taken most of a weekend. The insurance took one phone call that I had not made, because nobody had told me I needed to.

That order of operations is almost universal among founders, and it is not carelessness. It is that every HR checklist you can find is organized by calendar: day one, week one, the first thirty days, the first ninety. Legal obligations do not arrive on a calendar. They arrive at milestones. Some attach the moment you decide to pay a person, some attach the moment somebody starts work, and some sit dormant until your headcount crosses a number written into a statute.

This is the sequence in the order it actually happens, for a founder with no HR background and no intention of hiring one yet. I build FirstHR, an onboarding and HR platform for teams without a dedicated HR person, which makes me biased toward records over rituals. That bias is the argument of this article. It is general information, not legal advice, and state law varies more than any national checklist can capture.

What a Startup HR Checklist Actually Covers

A startup HR checklist is a sequence of four milestones, not a timeline. The first three arrive before you have anything resembling an HR function, and only the fourth is triggered by headcount.

The distinction matters because founders routinely assume there is a small-employer grace period. There is not. Wage and hour law, immigration verification, and workplace safety duties apply at one employee with no phase-in. What arrives later is a second layer: the federal discrimination statutes, continuation coverage, and leave and health coverage mandates.

The other reason to sequence by milestone is that the expensive items have lead times measured in weeks. If you learn about state unemployment registration during your first payroll run, your first payday moves.

Before the First Hire: Accounts, Insurance, and a Payroll Path

Five things have to exist before you can legally pay anyone, and two of them run on a government agency’s timetable rather than yours. The right moment to start is the day you decide to hire, not the week the person arrives.

The employer identification number is the easy one: free, issued immediately online, and required before you can register anywhere else. The state layer is where first paydays slip, because registration follows the employee rather than the office. Three people in three states means three sets of accounts.

Workers compensation is the item founders most often discover late, because it is not federal and nobody sends you a notice. Most states require coverage from the first employee, several set a threshold at three, four, or five, and Texas lets most private employers decline the system entirely and accept the liability exposure that comes with it.

The payroll path is a decision rather than a purchase. Running it yourself is legal and reasonable at a couple of salaried employees in one state. What is not optional is that the money reaches the right agency on the right day.

The Classification Decision That Comes Before Everything Else

Classification is the first real decision on the list, and it is made twice. First, is this person an employee or an independent contractor. Second, if they are an employee, are they exempt or non-exempt from overtime. Both answers change which forms exist, which taxes you owe, and which laws apply.

The employee or contractor question is not settled by the agreement you both signed. Agencies apply their own tests looking at behavioral control, financial control, and the economic reality of the relationship, and several states use a stricter presumption that treats a worker as an employee unless the employer proves otherwise.

Getting it wrong is expensive in a specific and compounding way. A reclassification usually brings back withholding, the employer share of payroll taxes, penalties and interest, unpaid overtime with liquidated damages, and an unemployment or workers compensation claim that pulls in everyone in the same role.

The exempt question is narrower and just as commonly botched. Under federal rules an employee is exempt from overtime only if they are paid on a salary basis, above the current salary threshold, and their actual duties fit one of the recognized exemptions. A title does not create an exemption, and neither does agreeing to a salary.

The First Hire: What Has a Deadline Attached

Six items belong to your first hire, and four of them carry a specific deadline counted in days. The two without deadlines are the ones founders do first, which is a reasonable summary of the whole problem.

On the handbook question at hire one: skip it. A first-hire handbook is almost always a template nobody signed, describing policies you have not tested, and it creates obligations you may not want. What you need at one employee is the offer letter and the forms. The handbook belongs at the next milestone.

What Applies From Employee Number One

There is no small-employer exemption from wage and hour law, immigration verification, or workplace safety. These apply at one employee, in full, with the same penalties a larger employer faces.

Federal wage and hour law reaches nearly every business, either because the enterprise meets the annual dollar volume test or because individual employees are engaged in interstate commerce, which in practice covers anyone handling out-of-state orders, payments, or communications. That brings minimum wage, overtime at one and a half times the regular rate above forty hours in a workweek, the equal pay provisions, and a payroll records requirement with a specific list of fields.

Immigration verification has no threshold whatsoever, and the related anti-discrimination provision reaches employers with four or more employees. Workplace safety duties apply from employee one as well, including the obligation to report a fatality within eight hours and an inpatient hospitalization, amputation, or loss of an eye within twenty-four. The injury log is the part that waits: employers with ten or fewer employees throughout the previous calendar year are partially exempt from keeping it, though the reporting duties above still apply.

Then there is the state layer, which is where most founders are actually caught out. Many state discrimination statutes apply at counts far below the federal fifteen, sometimes from a single employee. Paid sick leave, pay frequency rules, final paycheck timing, and pay transparency requirements are all state-level and all apply immediately.

The First Five Hires: A Written Policy Set and Somewhere to Put It

Nothing new attaches legally at five employees. What changes is that your memory stops functioning as a filing system, and inconsistency starts producing the disputes that later become claims.

The tell is specific and every founder recognizes it: two people got different answers to the same question about time off, and both answers came from you. At one employee an informal arrangement is just an arrangement. At five it is a pattern, and a pattern that varies by person is the raw material of a discrimination claim.

Four or five pages covering that table beats a fifty-page handbook copied from a template, because you will actually follow it. Time off is the item to get right first: whether it accrues, whether it carries over, and what happens to a balance on separation.

Payroll cadence deserves a decision rather than a drift. Pick the frequency your state allows for your worker types, set the paydays for the year, and write them down, because changing cadence later requires notice and irritates everyone. The conduct policy needs one thing most templates omit: a second person an employee can complain to, so that a complaint about the founder has somewhere to go.

The Records That Matter When Something Goes Wrong

Five documents get requested when an employment dispute starts, and none of them are the ones founders write first. The signed offer letter, the Form I-9, the time records, the policy acknowledgment, and the dated notes from the conversation before the decision.

Federal wage and hour rules are unusually specific about the payroll record: employee name and address, occupation, the day and time the workweek begins, hours worked each day and each workweek, the pay basis, regular hourly rate, straight-time and overtime earnings, additions and deductions, total wages, and the pay date and period covered (29 CFR 516.2). Absent time records, a wage claim is generally decided on the employee’s reasonable estimate.

Three retention clocks run at once. Payroll records for at least three years and supporting time cards and rate tables for two under wage and hour rules, employment tax records for at least four years, and Form I-9 for three years after the hire date or one year after employment ends, whichever is later. Keep everything four years and the arithmetic stops mattering.

Storage structure matters as much as retention. Form I-9 belongs in its own file rather than the personnel folder, so an inspection of I-9s does not become an inspection of everything else, and medical, disability, and benefits information belongs in a third location entirely.

Where New Legal Obligations Switch On

Four employee counts matter in federal law: four, fifteen, twenty, and fifty. Each is measured over a lookback window rather than on today’s payroll, so you can be covered by a statute after a reduction and not covered while briefly above the line.

The fifteen-employee line is the biggest single jump, because it brings the federal discrimination statutes and their record and posting requirements with it. The statute defines a covered employer as one with fifteen or more employees for each working day in each of twenty or more calendar weeks in the current or preceding calendar year (42 USC 2000e). Part-time employees count, contractors generally do not, and the twenty weeks need not be consecutive.

State thresholds sit underneath all of this and are usually lower. Several states apply their discrimination statutes at five employees, some at one, and state family leave programs frequently reach employers far below fifty. The federal table is the floor, never the answer.

What Changes as You Approach Fifty

Fifty is the largest single step in US employment law for a growing company, and two unrelated statutes land at once. Neither is something you can implement in the week you cross the line.

The Family and Medical Leave Act covers an employer with fifty or more employees for each working day during each of twenty or more calendar workweeks in the current or preceding calendar year (29 USC 2611). Employer coverage is only half the test. An individual employee qualifies only after twelve months of employment, 1,250 hours in the preceding twelve months, and work at a site with fifty or more employees within seventy-five miles.

The health coverage mandate uses a different count entirely. An applicable large employer averaged at least fifty full-time employees, including full-time equivalents built from part-time hours, across the preceding calendar year, where full time means thirty hours a week or 130 hours a month (IRS applicable large employer determination). Crossing it means offering coverage that meets minimum value and an affordability standard set at 9.96 percent of household income for plan years beginning in 2026.

The penalties are annual per-employee amounts, indexed each year. For 2026 the failure-to-offer amount is $3,340 and the unaffordable-coverage amount is $5,010, both assessed only when an employee receives subsidized exchange coverage. Reporting obligations attach separately.

Practically, start preparing around thirty-five to forty employees. Benefits decisions take a plan year to implement, leave administration needs a written process before the first request rather than after, and the measurement periods that determine full-time status run for months. This is also the point where the case for a dedicated HR person stops being theoretical.

What to Build Now and What to Defer

Build anything that produces a record of the employment relationship. Defer anything that describes the company to itself. That single rule sorts most of the list, and it is the opposite of how the effort usually gets allocated.

Build now: the offer letter template with the pay basis stated, a signature process that produces a dated signed copy, a folder structure separating personnel files from I-9s and from medical information, time records for every non-exempt employee, and the short policy set with acknowledgments. That is a week of work in total, and every item is something an agency or a lawyer will actually ask you to produce.

Defer: performance review cycles, engagement surveys, career frameworks, the values document, formal training programs, and the full handbook. None of these are worthless. All of them are better built once you have enough people for the output to mean something, and none of them protect you from anything in the meantime.

The pattern I see repeatedly is a founder with a beautifully written culture page and no signed offer letters. It is an understandable trade: the culture work is visible and feels like leadership, while the records work feels like bureaucracy for a problem that has not happened. The asymmetry is that skipping the culture page for six months costs nothing, and a missing time record has a number attached.

The one piece of the people system worth buying before you feel you need it is somewhere for records to live and onboarding to run consistently. That is the specific gap I built FirstHR to close, because the value of a record is entirely retrospective and you cannot create it after the fact.

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