What Is Payroll Tax Liability? Deposits, Returns, and Penalties

Payroll tax liability is what an employer owes the federal government from each payroll: the taxes withheld from employee wages plus the employer’s own matching share. For 2026, the combined FICA rate is 15.3% of wages (6.2% Social Security from each side, up to a $184,500 wage base, and 1.45% Medicare from each side with no cap), on top of federal income tax you withhold using each employee’s Form W-4 and a 0.6% effective FUTA tax on the first $7,000 of each worker’s wages. The obligation begins with your first paycheck, and the IRS can hold owners and officers personally responsible for the withheld portion if it never reaches the government.

What Goes Into the Liability

Three federal taxes make up the total you owe each pay period.

FICA: Social Security and Medicare

Social Security tax runs 6.2% on the employee’s wages, matched by 6.2% from the employer.1Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax Medicare is the same structure at 1.45% each.2Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates Combined, that’s 15.3% of taxable wages split evenly between employer and employee.

An Additional Medicare Tax of 0.9% applies once an employee’s wages cross $200,000 in a calendar year. You withhold it starting in the pay period the employee passes that mark and continue through year-end.3Internal Revenue Service. Topic No. 560, Additional Medicare Tax The $200,000 trigger applies regardless of filing status, even though a married couple filing jointly does not actually owe the tax until $250,000. There is no employer match on this piece.

Federal Income Tax Withholding

You also act as a collection agent for each employee’s federal income tax. The withholding amount comes from the employee’s Form W-4, adjusted for filing status, dependents, and any additional amount they request.4Internal Revenue Service. About Form W-4, Employee’s Withholding Certificate The money is the employee’s tax, but once you’ve withheld it, getting it to the IRS is your responsibility.

Federal Unemployment Tax

FUTA is entirely on the employer. Nothing comes out of the paycheck. The statutory rate is 6.0% on the first $7,000 of each employee’s annual wages,5Office of the Law Revision Counsel. 26 USC 3301 – Rate of Tax but nearly every employer receives a 5.4% credit for paying state unemployment taxes, bringing the effective rate to 0.6%.6Internal Revenue Service. FUTA Credit Reduction That caps the FUTA cost at roughly $42 per employee per year. Employers in states with outstanding federal unemployment loans get a reduced credit and pay more.

2026 Wage Bases

The rates are fixed by statute; the wages they apply to change.

  • Social Security wage base: $184,500 for 2026. Both sides owe 6.2% up to this ceiling, for a maximum of $11,439 each.7Social Security Administration. Contribution and Benefit Base
  • Medicare: no wage base. The 1.45% employer and employee shares apply to every dollar, with the additional 0.9% employee-only tax on wages above $200,000.3Internal Revenue Service. Topic No. 560, Additional Medicare Tax
  • FUTA wage base: $7,000 per employee, unchanged since 1983.6Internal Revenue Service. FUTA Credit Reduction

Once an employee’s year-to-date wages pass the Social Security base, both the employee withholding and the employer match on that 6.2% stop. Medicare keeps going. That shift in the second half of the year changes your deposit amounts for higher-paid employees.

Depositing What You Owe

Depositing federal payroll taxes and filing the returns that report them are two separate obligations. Most penalties come from the deposit side.

The IRS assigns you a monthly or semi-weekly deposit schedule based on what you reported during a lookback period.8Internal Revenue Service. Publication 15 (2026), (Circular E), Employer’s Tax Guide

All deposits go through the Electronic Federal Tax Payment System.10Internal Revenue Service. EFTPS: The Electronic Federal Tax Payment System New employers should enroll early. Activation can take a week, and the delay is not a defense against a late deposit.

Filing the Returns

Form 941 reports federal income tax withheld along with both shares of Social Security and Medicare tax.11Internal Revenue Service. About Form 941, Employer’s Quarterly Federal Tax Return It is due by the last day of the month after each quarter closes: April 30, July 31, October 31, and January 31.12Internal Revenue Service. Employment Tax Due Dates If every deposit during the quarter was on time, you get an extra 10 calendar days to file.

Form 940 reports FUTA for the year.13Internal Revenue Service. About Form 940, Employer’s Annual Federal Unemployment (FUTA) Tax Return The deadline is January 31, with the same 10-day extension if all deposits were timely.14Internal Revenue Service. Instructions for Form 940 If FUTA liability exceeds $500 in a quarter, you deposit it by the end of the following month rather than waiting for the annual return.

Form W-2 Copy A and the transmittal Form W-3 go to the Social Security Administration by January 31, and employees must have their copies by the same date.15Internal Revenue Service. Form W-2 and Other Wage Statements Deadline Coming Up for Employers Automatic extensions are not available for W-2s.

Penalties for Late Deposits and Late Returns

Deposit penalties escalate with time:

  • 1 to 5 days late: 2% of the unpaid deposit
  • 6 to 15 days late: 5%
  • More than 15 days late: 10%
  • More than 10 days after the IRS’s first notice: 15%16Internal Revenue Service. Failure to Deposit Penalty

The percentage applies to the full deposit that should have been made, not just the shortfall. A business that runs a few days late every pay period can accumulate real money in penalties over a year.

Filing Form 941 late adds a separate penalty of 5% of the unpaid tax per month, capped at 25%.17Internal Revenue Service. Failure to File Penalty The two penalties stack. The IRS may waive the deposit penalty for first-time depositors of employment taxes if the failure was inadvertent and the return itself was filed on time.18Office of the Law Revision Counsel. 26 US Code 6656 – Failure to Make Deposit of Taxes

Personal Liability for Trust Fund Taxes

The federal income tax and employee FICA amounts you withhold are called trust fund taxes. The IRS treats that money as government property from the moment it leaves the employee’s paycheck. The business is holding it in trust, not owning it.

If trust fund taxes are not paid over, the IRS can assess the Trust Fund Recovery Penalty against any individual with authority to pay who willfully chose not to. The penalty is 100% of the unpaid trust fund amount.19Office of the Law Revision Counsel. 26 USC 6672 – Failure to Collect and Pay Over Tax, or Attempt to Evade or Defeat Tax Dollar for dollar, on top of the underlying tax.

The definition of a responsible person is broad. Anyone who could sign checks, control the bank account, or decide which bills got paid may qualify. Multiple people at the same company can each be assessed the full amount. Incorporation does not protect them. And in most circumstances the liability survives bankruptcy. When cash is tight and an owner pays the landlord or a supplier before the IRS, that choice is exactly what the statute is aimed at.

If You Treated an Employee as a Contractor

Paying a worker on a 1099 to avoid payroll taxes is expensive if it doesn’t hold up. When the IRS reclassifies 1099 workers as employees, back employment taxes come due, and the reduced-rate structure depends on whether information returns were filed.

The full employer share of FICA is still owed on top of those amounts. The Department of Labor can pursue separate wage-and-hour penalties, and state agencies may seek unpaid unemployment contributions. Audits typically look back several years.

State Taxes Are Separate

Federal payroll tax liability does not include state obligations. Most states impose income tax withholding on wages, and every state runs an unemployment insurance program with its own rates and wage base. State unemployment wage bases range from the federal $7,000 minimum to more than $60,000, and rates are usually experience-rated based on former employees’ benefit claims. A handful of states also require employer contributions to disability insurance or paid family leave. If you have employees in more than one state, you may have withholding duties in each. Check with the labor and revenue agencies in every state where you have workers before running your first payroll.