The business that pays the wages is legally responsible for payroll taxes, but that answer is only the starting point. Federal law can reach past the company to hold individual officers personally liable for unpaid trust fund taxes, a payroll service handling the paperwork does not move the obligation off the employer in most cases, and buying an existing business can carry the prior owner’s payroll tax debts along with it. Understanding who is responsible for payroll taxes means understanding all four layers: the employer itself, the people running it, any third party in the middle, and anyone who takes the business over.
The Employer Carries the Primary Obligation
Every duty in the federal payroll tax system sits on the employer first. That includes withholding federal income tax from each paycheck based on the employee’s Form W-4, collecting the employee’s 7.65% share of Social Security and Medicare taxes, and paying a matching 7.65% on top.1Social Security Administration. FICA and SECA Tax Rates The 6.2% Social Security portion applies to wages up to $184,500 in 2026; earnings above that cap are subject only to Medicare tax.2Social Security Administration. Contribution and Benefit Base
Employers also withhold an additional 0.9% Medicare tax on wages exceeding $200,000 in a calendar year. There is no employer match on that extra amount, but the employer still has to withhold it and remit it correctly.3Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
Federal Unemployment Tax is an employer-only obligation on top of that. The statutory rate is 6% on the first $7,000 of each employee’s annual wages, with most employers qualifying for a credit of up to 5.4% for paying state unemployment taxes, bringing the effective federal rate to 0.6%.4Internal Revenue Service. Instructions for Form 940
The employer reports withheld income tax and both shares of Social Security and Medicare taxes quarterly on Form 941, and reports FUTA annually on Form 940.5Internal Revenue Service. Instructions for Form 941 – Rev. March 20266Internal Revenue Service. Failure to Deposit Penalty7eCFR. 26 CFR 301.6651-1 – Failure to File Tax Return or to Pay Tax
When Corporate Officers Are Personally on the Hook
The money an employer withholds from employee paychecks for income tax and Social Security is considered held in trust for the federal government. When a business fails to turn those trust fund taxes over, the corporate shield does not protect the individuals who made the spending decisions. Under IRC Section 6672, any person responsible for directing the company’s finances who willfully fails to pay over trust fund taxes faces a penalty equal to 100% of the unpaid amount, collected from that person personally.8Office of the Law Revision Counsel. 26 USC 6672 – Failure to Collect and Pay Over Tax, or Attempt to Evade or Defeat Tax
The IRS defines a “responsible person” broadly. It covers anyone with the authority to decide which creditors get paid: corporate officers, directors, managing partners, and even bookkeepers with check-signing authority. “Willfulness” does not require intent to cheat the government. If you knew the taxes were owed and chose to pay rent or suppliers instead, that is enough. The IRS can pursue multiple responsible persons at the same time until the full debt is recovered, though each person who pays has a right to seek contribution from others who share the liability.8Office of the Law Revision Counsel. 26 USC 6672 – Failure to Collect and Pay Over Tax, or Attempt to Evade or Defeat Tax
Personal liability survives even if the business files for bankruptcy or shuts down entirely. The IRS generally has three years from the date a return is filed or its due date, whichever is later, to assess the Trust Fund Recovery Penalty against a responsible person.9Internal Revenue Service. Trust Fund Recovery Penalty Assessments Once assessed, the agency has 10 years to collect.10Internal Revenue Service. Time IRS Can Collect Tax If no return was ever filed or the return was fraudulent, there is no time limit on assessment.
Criminal Exposure
The Trust Fund Recovery Penalty is civil. Willful failure to collect and pay over employment taxes can also be prosecuted as a felony under IRC Section 7202, carrying a fine of up to $10,000 and up to five years in prison.11Office of the Law Revision Counsel. 26 USC 7202 – Willful Failure to Collect or Pay Over Tax Criminal prosecution is less common than civil penalties, but the IRS tends to pursue it when the conduct looks deliberate or involves large amounts.
Does a Payroll Service Take on the Liability
Usually, no. Hiring a payroll service to handle deposits and filings is common, but it does not transfer legal responsibility away from the employer. The IRS is clear on this: the employer remains liable even when a third party handles the work.4Internal Revenue Service. Instructions for Form 940
Reporting Agents
A reporting agent signs and files returns on behalf of the employer after being authorized through Form 8655.12Internal Revenue Service. About Form 8655, Reporting Agent Authorization The agent acts as a filing intermediary, and the employer owns every obligation. If the agent misses a deposit deadline or files a return late, the IRS pursues the employer for the tax, penalties, and interest. The employer may later seek reimbursement from the agent under their service contract, but that private arrangement does not affect the government’s claim.
Certified Professional Employer Organizations
There is one arrangement that actually shifts liability. A Certified Professional Employer Organization (CPEO) enters a co-employment relationship and can assume legal responsibility for employment tax withholding, reporting, and payment. That shift only applies when the organization is certified by the IRS under IRC Section 7705.13Office of the Law Revision Counsel. 26 USC 7705 – Certified Professional Employer Organizations If the provider is not IRS-certified, the employer keeps full liability regardless of what the service contract says.
Monitoring the Provider
Because responsibility stays with the employer in almost every setup, the IRS encourages every employer using a payroll service to enroll in the Electronic Federal Tax Payment System (EFTPS) and periodically verify that deposits are actually being made.14Internal Revenue Service. IRS Reminds Employers About the Benefits of EFTPS Warning signs include IRS notices about unpaid taxes the provider was supposed to handle, resistance when you ask to verify deposits, or a provider that suddenly becomes unreachable.15Internal Revenue Service. 16Internal Revenue Service. Worker Classification 101 – Employee or Independent Contractor Either the worker or the business can file Form SS-8 to request a formal determination.17Internal Revenue Service. About Form SS-8, Determination of Worker Status for Purposes of Federal Employment Taxes and Income Tax Withholding
If an employer misclassified a worker but had a reasonable basis for doing so, IRC Section 3509 provides reduced liability rates: 1.5% of wages for the income tax withholding portion, and 20% of the normal employee share of FICA taxes.18Office of the Law Revision Counsel. 26 USC 3509 – Determination of Employers Liability for Certain Employment Taxes Without a reasonable basis, for example if the employer had earlier guidance from the IRS that the workers were employees, the full tax liability applies with no reduction. That is where misclassification gets genuinely expensive: back taxes, interest, and penalties across several years can dwarf whatever the business saved by not running payroll in the first place.