How Do I Run Payroll for One Employee? (w/Examples) + FAQs

Running payroll for one employee takes six steps: get an EIN, register with your state, collect a W-4 and I-9, set a pay schedule, turn gross pay into net pay, then pay and file. None of those steps go away because you have one worker instead of fifty. Skip one, and you risk a fine you could have avoided.

Even owners who pay themselves through an S corporation face the same rules. Full-service help typically runs $30 to $100 a month, depending on pay frequency and add-ons. The rules also split into a federal floor and a state layer, and that split trips up new employers more than any single tax rate.

This article reflects federal payroll rules as of 2026. Employment and tax rules change and vary by state, so confirm current figures and your state's requirements before you run payroll. This is educational content, not a substitute for advice from an accountant or employment attorney about your specific situation.

What Changes, and What Doesn't, With One Employee

Hiring your first employee makes you an employer in the full legal sense. It does not make you a smaller version of one. The Fair Labor Standards Act (FLSA) and IRS payroll rules apply equally to a solo hire and to a fifty-person staff. There is no lighter track for small teams.

Paychex's guide puts it plainly: single-employee payroll carries the same compliance load as a much larger team. That surprises owners who expected an easier version of the rules. The paperwork does not shrink; only the number of paychecks does. A one-person shop still files the same forms, on the same deadlines, as a business with a full HR staff.

That workload covers three jobs at once. You must classify the worker correctly, withhold and send the right taxes on every paycheck, and keep records long enough to survive an audit. Miss any one of the three, and it can undo the other two. A wrong worker classification alone can mean months of corrected filings later.

The good news: the setup is finite, and it repeats in the same order each time. You open your accounts once and collect paperwork once. After that, you run the same math every pay period, with only the hours or salary changing. This guide walks through that setup, the math, and the traps that catch new employers most often.

Most owners who go through the process once find the second pay run far faster than the first. The heavy lift sits entirely upfront: opening accounts, collecting forms, and picking a schedule. Once those pieces are in place, payroll for one employee becomes a short, repeatable task, not a research project every time. Many owners report the second pay run takes minutes once the first one is done, because the calculation itself barely changes from period to period.

What You Need Before Your First Payroll Run

Before you can legally pay anyone, you need a stack of accounts and forms in place. Most of this happens once, and some of it, like your EIN, takes minutes online. ADP's checklist names an EIN, state and local tax IDs, a state unemployment ID, and the employee's I-9 and W-4 forms as the core pieces.

Gather everything in the table below before you set a pay date. A missing account can delay your first legal paycheck by days or weeks. State agencies often take time to process a new employer registration.

An EIN is a nine-digit number the IRS uses to identify your business. It costs nothing and takes only minutes to get on the IRS site. State registration takes longer and varies more; some states combine withholding and unemployment into one form, while others use two.

Once those accounts exist, the paperwork from your employee closes the loop. The W-4 sets tax withholding, and the I-9 confirms work eligibility. Together they let you legally issue a first paycheck, so collect both before day one, not after. Keep signed copies of each on file, since a state or federal auditor can ask to see them years later.

The Federal Rules That Apply From Employee One

Federal law does not wait for a set headcount before most payroll rules start. The Federal Insurance Contributions Act (FICA) requires you to withhold 6.2% for Social Security and 1.45% for Medicare from every paycheck. Paychex confirms that employers match both amounts, and that match applies whether you have one employee or a hundred.

You also owe federal unemployment tax (FUTA), a tax employers pay entirely on their own. The standard rate is 6.0% on the first $7,000 of each employee's wages each year. Most employers who pay state unemployment tax on time get a credit of up to 5.4%, which drops the effective FUTA rate to about 0.6%, or roughly $42 per employee a year. Miss that state deadline, and the credit, along with your lower rate, disappears.

Recordkeeping is not optional either. The FLSA requires employers to keep payroll records for at least three years. Timecards and work schedules only need two years, but the IRS suggests holding tax records for four. Keeping records for the longest of these windows covers every rule at once.

A minimum wage floor also applies from day one. The current federal minimum is $7.25 an hour, though most states set their own rate above it. Federal anti-discrimination laws such as Title VII generally start once a business reaches 15 employees, so a true one-employee shop sits below that federal line. Still, EEOC's guidance for small businesses is worth reading early, since state law can set a lower headcount.

Overtime rules matter even for one hourly worker. A non-exempt employee is one who does not meet the pay and duty tests for an exemption. That worker must earn time-and-a-half for hours worked past 40 in a week. A salaried employee can skip overtime only if both pay and job duties qualify for an exemption, so classification decides real money.

Does Your State Change the Rules?

Federal rules set the floor, but your state decides much of what you owe and when. New-hire reporting shows this clearly: federal law sets a 20-day outer limit for reporting a new hire, but many states require it sooner. Miss that window, and a fine can arrive even if every other filing was correct.

State income tax withholding is not universal. States like Florida and Texas charge no state income tax, so payroll there skips a step that a business in California or New York must run every pay period. That does not make payroll simpler overall. Unemployment insurance, workers' comp, and new-hire reporting still apply no matter what the income tax rate is.

Workers' compensation insurance is required in most states starting with employee number one, though a few states carve out exceptions for very small employers. Paychex points to minimum wage as another moving piece: employers must pay at least the higher of the state or local rate. That figure can sit several dollars above the federal $7.25 floor in many cities, so check your local rate before you set a wage.

This overlay shifts by state and sometimes by city, so treat the table as a starting point, not a final answer. A short call to your state's labor department and tax agency can confirm the exact numbers before your first pay date. That call is cheaper than a penalty notice arriving later, and it takes far less time than untangling a filing after the fact.

Which Situation Applies to You?

Not every one-employee setup looks the same. The paperwork and the risk shift with your situation, so find the version below that matches yours first. Each one carries its own misconception, so read the whole entry even if your case seems obvious.

You are hiring your first hourly employee

This is the most common case: a small business bringing on one part-time or full-time hourly worker. You need the full checklist above, a system for tracking hours, and an overtime policy before their first shift. Some owners assume overtime only kicks in for larger crews, but one hourly worker who crosses 40 hours in a week still earns time-and-a-half. Hours vary week to week, so build a habit of confirming them before you run payroll.

Skipping that habit is the most frequent misstep in this group. An owner who assumes a fixed weekly total, instead of checking real clock-in and clock-out times, can underpay overtime without noticing. Confirm hours the same day every pay period, and keep the source record. A time clock or a simple log works, and a state agency may ask to see it.

You are an S corporation owner paying yourself

Owners who elect S corporation status and work in the business must generally pay themselves a reasonable salary through payroll, not only take profit distributions. That salary runs through the same withholding steps as any other employee's pay, including FICA and income tax. Many owners assume distributions alone are simpler and skip payroll entirely. That shortcut is one of the fastest routes to drawing IRS attention.

The IRS does not publish one fixed dollar figure for a reasonable salary. The right number depends on your industry, your role, and what similar workers earn nearby. An accountant can help you land on a defensible figure before your first pay date, since getting it wrong in either direction invites scrutiny from the IRS.

You are hiring in a state with no income tax

If your state charges no income tax, your paycheck math skips one line, but every other duty still applies in full. You still register for unemployment insurance, still send federal payroll tax deposits, and still owe FUTA on the same schedule as any other employer. Do not let the missing withholding line create a false sense that payroll is lighter here; the accounts and deadlines match any other state.

New employers in these states sometimes skip unemployment registration entirely, assuming it travels with income tax. It does not. Register for unemployment insurance the same week you apply for your EIN, no matter what your state charges in income tax, so you are not scrambling once your first pay date has passed.

You are converting a contractor into an employee

Businesses that grow past one freelancer into their first true employee must redo the paperwork from scratch. A 1099 contractor relationship does not carry over: you still need a W-4, an I-9, and a state registration, even for someone who has worked for you for years. The IRS uses specific tests to decide whether a worker counts as an employee or a contractor, based on how much control you hold over their schedule. Treating an employee as a contractor to skip payroll setup is a common mistake that can trigger back taxes once caught.

The switch also changes what you owe on the same dollar of pay. A contractor invoice carries no employer-side FICA match and no unemployment tax, while an employee's paycheck carries both. Budget for that added cost before you switch, not after your first employee paycheck runs higher than the old contractor invoice ever did.

Worked Example: Calculating Gross Pay to Net Pay for One Employee

Numbers make this concrete. Sam owns a small bakery and recently hired Jordan as the shop's first employee, paid $22.00 an hour for 35 hours a week. Over a biweekly pay period, Jordan logs 70 hours, so gross pay, wages before any deductions, comes to $1,540.00. That gross figure is the starting point for every deduction that follows, so accurate hours matter before any tax math begins.

From there, four deductions bring gross pay down to net pay, the amount that lands in the employee's account. Social Security withholding is 6.2% of gross pay, or $95.48, and Medicare withholding is 1.45%, or $22.33. Using the IRS's 2026 wage-bracket tables for a single filer with no extra W-4 adjustments, federal income tax withholding lands near $123.00. A flat 4% state income tax would add another $61.60.

That $1,237.59 is what reaches Jordan's bank account after taxes. Sam's cost does not stop there. The bakery also owes a matching $117.81 in FICA, the same 6.2% and 1.45% rates, paid by the employer rather than deducted from the paycheck each pay period.

Add it up, and Sam's real cost to employ Jordan for this one pay period runs closer to $1,660, not the $1,540 gross wage alone. That gap between gross wage and total cost is the part new employers most often forget to budget for when they price out their first hire. Treat this table as a model, not an exact formula, since real withholding depends on current IRS tables and the employee's own W-4. Software or a calculator will land on the precise figure, and checking your first few paychecks by hand is worth the extra step.

Running Payroll Yourself vs. Paying for Software or a Service

You have three options for the mechanics: manual calculation, payroll software, and a full-service provider. They differ in where the risk sits, not only in price. Manual payroll means you calculate every withholding by hand or in a spreadsheet, file every form yourself, and carry full responsibility for every number.

ADP describes the manual steps as agreeing on a wage, tracking hours, figuring gross wages, withholding taxes, and paying the employee by check or deposit. Each step has no safety net if you slip. A single wrong percentage can throw off an entire pay period. Payroll software sits in the middle: it automates the math and often the filings, but you still own the setup that feeds it.

A full-service provider, such as ADP's RUN or Paychex Flex, goes further and files your payroll taxes, generates W-2s, and offers support, for a monthly fee. Paychex's cost data puts full-service or software-based payroll for one employee at $30 to $100 a month, with weekly pay and extras like direct deposit pushing the price higher. That fee buys a second set of eyes on every calculation, which matters most in your first few months.

The right choice depends on how much time your math takes and how comfortable you are owning every tax deadline. An owner confident in payroll math and steady hours can run it manually for free. An owner who would rather trade that fee for fewer late-night tax-table lookups usually comes out ahead once the first error, or the first missed deadline, costs real money.

There is also a middle path worth naming: start manually while your process is simple, then move to software once hours turn irregular or a filing starts eating time. Nothing locks you into one method for good. Reassess the choice every year, since your time and your business both change as you grow past one employee.

Lessons From Three First-Time Employers

Each situation below teaches something the others do not, because the traps that catch new employers rarely repeat in identical form. Read all three even if only one seems to match your setup, since the misconceptions often overlap. Each one pairs a named owner with the rule that tripped them up, so you see the mechanism, not only the outcome.

Dana learns that no state income tax does not mean no payroll tax

Dana runs a pet-grooming business in Texas and hired her first groomer, assuming payroll would be lighter with no state income tax to figure. She still had to register for Texas unemployment insurance, withhold federal FICA, and send federal payroll tax deposits on the same schedule as any other employer. The missing withholding line saved her one calculation, not the rest of the duties tied to hiring. Her accountant later called this one of the most common mix-ups among new employers in no-tax states like Texas.

Marcus discovers that owner pay still runs through payroll

Marcus set up an S corporation for his consulting business and at first moved money to his personal account whenever he needed it. An accountant flagged that S corp owner-employees must pay themselves a reasonable salary through payroll, with the same withholding as any other employee, instead of treating every payment as a distribution. Fixing months of distributions after the fact cost him more in amended filings than doing it right from the start would have. He now runs a normal biweekly paycheck for himself alongside any distributions he takes.

The mix-up is common among owners who come from freelancing, where every payment is simply an invoice. Once you elect S corp status, the IRS expects to see W-2 wages for the work you personally do, not only profit flowing to your bank account. Catching this in your first quarter, rather than at tax time next year, is the difference between one clean fix and a stack of amended filings.

Priya misses a new-hire reporting deadline for one household employee

Priya hired a part-time nanny and assumed reporting rules only applied to larger businesses with HR staff. Her state's new-hire directory required a report within 20 days of the hire date, and missing it triggered a penalty even though every tax payment had been made correctly and on time. The lesson has nothing to do with tax math. A single missed deadline can cost money even when every dollar owed was paid in full.

Household employers often miss this step, since none of the usual payroll marketing talks about nannies or other household staff. The new-hire directory does not care whether the employer is a household or a corporation; the same 20-day federal ceiling, and often a tighter state one, applies regardless. Priya now sets a calendar reminder the day she signs a new hire's paperwork, so the report goes out before the deadline, not after a notice arrives.

Mistakes to Avoid When You Have One Employee

• Skipping the EIN application. Without one, you cannot legally file any payroll tax form, which can delay your first pay date by days.
• Misclassifying an employee as a contractor. The IRS can reclassify the worker and bill you for back payroll taxes plus penalties on every affected pay period.
• Missing the new-hire reporting deadline. States fine employers for late reports even when every other filing was accurate and on time.
• Guessing at withholding instead of using the W-4. Under-withholding leaves your employee with a surprise tax bill, and over-withholding shorts their paycheck for no reason.
• Skipping workers' comp because you have only one employee. Most states require it starting at employee one, and an uninsured injury claim can become a direct, personal financial hit.
• Paying under the table. It exposes you to IRS and state penalties, and it leaves your employee with no verifiable income history for loans or benefits.
• Ignoring a state or local minimum wage above the federal floor. Paying only the federal $7.25 rate where local law sets a higher one creates back-pay liability the moment it is discovered.
• Not keeping records long enough. Falling short of the FLSA's three-year and the IRS's four-year windows leaves you unable to defend a payroll number in an audit.

Do's and Don'ts for Solo-Employee Payroll

Do

• Apply for your EIN before setting a first pay date, since most state accounts require it during registration.
• Collect the W-4 and I-9 before day one, so the first paycheck already reflects accurate withholding.
• Register for state unemployment insurance early, because processing can take longer than the federal EIN application.
• Set a written, consistent pay schedule, which several states require you to disclose to the employee in writing.
• Save every pay stub and filing for at least four years, matching the longer of the FLSA and IRS retention windows.

Don't

• Don't pay in cash without records, because it leaves no trail to prove wages, taxes, or hours if a dispute arises.
• Don't assume a no-income-tax state means lighter payroll, since unemployment insurance and federal withholding still apply in full.
• Don't skip workers' comp to save money, because one workplace injury without coverage can cost far more than years of premiums.
• Don't guess at tax withholding amounts, since a wrong number compounds every pay period until someone catches it.
• Don't wait until tax season to register your accounts, because state processing delays can push your first legal pay date back by weeks.

Pros and Cons of Doing Payroll Yourself

Pros

• No monthly service fee, which matters most for a business running on a tight early budget.
• Full visibility into every calculation, so you know exactly why each number on the paycheck is what it is.
• No vendor account setup or contract, since you only work with your own spreadsheet or records.
• Works well for simple, stable pay, especially a single salaried employee whose pay rarely changes.
• You control the exact timing, without waiting on a provider's processing schedule to release a payment.

Cons

• Manual tax-table lookups take real time, time a growing business often needs somewhere else.
• Higher risk of withholding errors, since nothing double-checks your math before the paycheck goes out.
• You must file every payroll tax form yourself, on every deadline, with no automatic reminder.
• No automatic new-hire reporting, so a missed deadline is entirely on you to catch.
• Rules fall out of date quickly, and a rate or threshold change can slip past you until a filing is rejected.

What to Do Next

1. Apply for your EIN online through the IRS if you don't already have one.
2. Register for your state's withholding and unemployment insurance accounts.
3. Collect a signed W-4, I-9, and direct deposit form from your employee.
4. Confirm your state's minimum wage, overtime, and workers' comp rules.
5. Set a written pay schedule and calendar your first pay date.
6. Choose between manual payroll, software, or a full-service provider.
7. Report the new hire to your state's directory before its deadline.
8. Run your first payroll, then save every record for at least four years.
9. Bring in an accountant or employment attorney if your situation involves an S corporation, multiple states, or a worker classification question.

Frequently Asked Questions

Do I need an EIN to pay one employee?

Yes. The IRS requires an Employer Identification Number to file any payroll tax return. Most state accounts also require it during registration, so it is the first step even for one hire.

How much does payroll cost for one employee?

Between $30 and $100 a month is the typical range for software or a full-service provider. Cost depends on pay frequency and features like direct deposit, as of 2026 pricing from major providers.

Can I run payroll for one employee without software?

Yes. You can calculate withholding by hand and file the forms yourself. It takes more time and carries a higher risk of errors than software or a service catches on its own.

Do I need workers' compensation insurance for one employee?

Yes, in most states. A handful of states carve out exceptions for very small employers, so confirm the exact threshold with your state's labor department before you skip coverage.

How often should I pay a single employee?

Most small businesses choose biweekly or semimonthly pay periods, balancing simpler math against the faster cash flow weekly pay provides. Your state may also set its own minimum pay frequency.

Is payroll different for an S corporation owner paying themselves?

Yes. Owner-employees must generally pay themselves a reasonable salary through payroll, with the same FICA and income tax withholding as any other employee, rather than taking only profit distributions.

What happens if I file payroll taxes late?

You owe a penalty. The IRS calculates it as a percentage of the unpaid tax that grows the longer the deposit stays late, on top of the tax itself.

Do I need to file a new-hire report for one employee?

Yes. Federal law sets a 20-day outer deadline for reporting any new hire to your state's directory. Many states require it sooner, no matter how many employees you have.

Can I pay my one employee in cash?

Yes, but it carries risk without records. Cash pay is legal only if you still withhold and report taxes correctly and keep the same records you would for a direct deposit or check.

What is FICA, and do I have to withhold it for one employee?

FICA is the combined Social Security and Medicare tax, withheld at 6.2% and 1.45% of gross pay. It applies to every employee, including a single hire, with no small-team exception.

How long do I need to keep payroll records for one employee?

At least three to four years. The FLSA requires payroll records for three years and timecards for two, while the IRS suggests four years for tax records, so four years covers every rule.