Hiring your first employee is a milestone — and a paperwork event. Once someone is on payroll, you become responsible for withholding taxes, paying employer taxes, filing new returns, and complying with labor laws. Get it right from day one and payroll becomes routine; get it wrong and penalties follow. Here is how to hire your first employee and set up payroll correctly in 2026.
Table of Contents
- Before You Hire: The Setup Checklist
- New-Hire Paperwork You Must Collect
- Payroll Taxes: What You Withhold and What You Pay
- How to Actually Run Payroll
- Ongoing Compliance Obligations
- Mistakes First-Time Employers Make
- Key Takeaways
Before You Hire: The Setup Checklist
First, get an Employer Identification Number (EIN) from the IRS if you do not already have one — it is free and required for reporting payroll taxes. Second, register with your state’s tax agency for unemployment insurance and income tax withholding accounts; most states let you do this online in a few days. Third, check whether your state or city requires workers’ compensation insurance before the employee’s first day — most do, as we cover in our guide to workers’ compensation insurance requirements.
Fourth, set up a payroll bank account arrangement and decide on a pay schedule (weekly, biweekly, semimonthly, or monthly), checking your state’s pay-frequency rules — some states restrict how often you must pay. Fifth, draft an offer letter or employment agreement covering job title, pay rate, schedule, and at-will status where applicable. Finally, prepare a simple employee handbook or at least written policies on timekeeping, overtime, and paid leave.
New-Hire Paperwork You Must Collect
On or before day one, every new hire must complete Form I-9 to verify employment eligibility — you must review the documents yourself and keep the form on file. They also complete Form W-4, which tells you how much federal income tax to withhold. Many states have their own withholding certificates too.
You must also report the new hire to your state’s new-hire reporting program, typically within 20 days of the start date (some states require faster reporting). This feeds child-support enforcement systems. Keep copies of everything in a personnel file separate from payroll records, and never ask for documents beyond what the I-9 requires — over-documentation can create discrimination liability. The IRS employer resources page walks through federal hiring requirements step by step.
Payroll Taxes: What You Withhold and What You Pay
From each paycheck you withhold federal income tax (based on the W-4), the employee’s share of Social Security and Medicare taxes, and state and local income taxes where applicable. On top of that, you as the employer pay a matching share of Social Security and Medicare, plus federal unemployment tax (FUTA) and state unemployment insurance (SUTA) on the employee’s wages.
The employer’s share is a real cost of hiring: budget roughly 7.65 percent of wages for Social Security and Medicare alone, plus unemployment taxes that vary by state and your claims history. This is why the fully loaded cost of an employee runs meaningfully above their salary — a point worth modeling in your cash flow planning before you post the job.
How to Actually Run Payroll
For a first hire, a payroll service is almost always worth it. Providers calculate withholding, file federal and state returns, make tax deposits, and issue W-2s — typically for a modest monthly fee plus a per-employee charge. Doing payroll by hand with IRS tables is possible but error-prone, and the penalties for late deposits are steep.
Each pay period, you submit hours or salary data, the service processes the run, and you approve it before payday. Deposits of withheld taxes are generally due monthly or semiweekly depending on your total tax liability; your payroll provider handles the schedule. At year-end, the service issues Form W-2 to the employee and files copies with the Social Security Administration by January 31.
Ongoing Compliance Obligations
Payroll is not a one-time setup. Quarterly, you file Form 941 reporting wages and withheld taxes. Annually, you file Form 940 for federal unemployment tax and issue W-2s. States have parallel quarterly returns. You must also display required labor-law posters in the workplace (or distribute them electronically for remote workers) and maintain payroll records for at least three to four years depending on the jurisdiction.
Wage-and-hour compliance matters from the first paycheck: track hours for nonexempt employees, pay overtime at time-and-a-half beyond 40 hours a week under federal law, and follow your state’s minimum wage and final-paycheck rules. Misclassifying the worker as a contractor instead of an employee is one of the costliest errors — see our 1099 vs. W-2 classification guide before you decide.
Mistakes First-Time Employers Make
The biggest mistake is treating payroll as an afterthought: starting someone working before the EIN, state accounts, and insurance are in place. Second is misclassification — calling an employee a contractor to dodge payroll taxes invites back taxes and penalties. Third is missing deposit deadlines; payroll tax deposits cannot be late even once without penalty, and the IRS takes trust-fund taxes (withheld employee money) very seriously.
Fourth, founders forget state-specific rules: paid sick leave mandates, final-pay timing, and new-hire reporting deadlines vary widely. When in doubt, a quick consult with an employment attorney or CPA before the first hire costs far less than fixing violations later.
