Small Business Payroll Compliance Checklist

Step 1: Collect Form W-4 Before the First Paycheck

Every employee completes Form W-4 before you can withhold federal income tax correctly. The form tells you their filing status and any additional withholding adjustments; without it, the IRS generally requires withholding as if the employee were single with no adjustments, which usually withholds more than the employee would otherwise choose. Many states have a separate state withholding form, so check whether your state requires one in addition to the federal W-4.

Step 2: Determine Your Federal Deposit Schedule

Before the start of each calendar year, the IRS requires you to determine whether you're a monthly or semi-weekly depositor for the coming year, based on the total employment tax you reported during a prior 12-month lookback period. Getting this wrong, and depositing on the wrong schedule, can trigger a penalty even if the total tax paid for the period is correct.

Step 3: File Form 941 Quarterly, or Form 944 if You're Approved

Most employers file Form 941 quarterly to report withheld federal income tax, Social Security and Medicare tax. Form 944 is an annual alternative, but it's only available to employers the IRS has specifically notified are eligible, generally those with a very small annual employment tax liability; you can't choose to file Form 944 on your own without that notification.

Step 4: Pay FUTA Tax Separately From Other Payroll Taxes

The Federal Unemployment Tax Act (FUTA) requires a separate tax, reported annually on Form 940, at a base rate of 6.0% on the first $7,000 paid to each employee in a year. Most employers receive a credit of up to 5.4% for paying their state unemployment tax on time and in full, which brings the effective federal rate down to 0.6%. If your FUTA liability exceeds $500 in a quarter, a deposit is due by the end of the month following that quarter rather than waiting for the annual return.

Step 5: Register and Pay State Payroll Taxes

Separately from federal payroll taxes, register with your state for income tax withholding, where applicable, and state unemployment insurance. These are state-level accounts and filings, distinct from your federal EIN and federal payroll tax deposits, so don't assume one registration covers both.

Step 6: Follow Your State's Wage Payment Rules

States set their own rules for how often you must pay employees, such as weekly or biweekly, what has to appear on a pay stub, and how quickly a final paycheck is due after an employee leaves. These rules vary significantly and are separate from federal tax withholding requirements, so check your specific state's labor department for its pay frequency and final-pay rules.

Step 7: Furnish W-2s by January 31

At year-end, Forms W-2 must be furnished to employees and filed with the Social Security Administration by January 31, per the IRS, a notably tighter deadline than many other annual business filings. If you also pay independent contractors $600 or more during the year, Form 1099-NEC generally carries the same January 31 deadline.

Step 8: Keep Payroll Records for the Required Period

Keep employment tax records for at least 4 years after the date the tax becomes due or is paid, whichever is later, per the IRS. This is separate from, and in addition to, any state-specific payroll recordkeeping period that may apply.

A Payroll Provider Doesn't Remove Your Responsibility

Using a payroll service to calculate withholding and file returns is common and can reduce errors, but the business, and in some cases a responsible individual within it, remains legally responsible for the payroll taxes actually being deposited and filed correctly. Confirm your provider is filing on the schedule your business is actually assigned, rather than assuming it's automatically correct.

Misclassifying the Deposit Schedule Is a Common, Avoidable Penalty

Depositing employment taxes on the wrong schedule, monthly when you should be semi-weekly or vice versa, can trigger a penalty even when the total amount deposited for the period is accurate. Confirm your schedule at the start of each year rather than assuming last year's schedule still applies.

Late Deposits Trigger Escalating Penalties

The IRS applies a tiered penalty structure that increases the longer a payroll tax deposit is late, so catching and fixing a missed deposit quickly costs meaningfully less than letting it sit.

This Is Not Tax Advice

Payroll tax rules involve deposit schedules, credits and state-specific wage rules that can change and that depend on your specific business's size and history. Talk to a payroll provider or tax professional to confirm your current deposit schedule, filing form and state-specific obligations.