Trust Fund Recovery Penalty (TFRP): Personal Liability for Business Payroll Taxes

When a business withholds federal income tax, Social Security, and Medicare from employees’ paychecks but does not send those withheld amounts to the IRS, the IRS can pursue the individuals responsible for the failure personally. This is the trust fund recovery penalty (TFRP) under IRC 6672. The penalty equals 100% of the unpaid trust fund taxes, and it applies to each “responsible person” who willfully failed to collect or pay over the tax. Multiple people can be liable for the same amount. The IRS pursues TFRPs aggressively because employment tax compliance is a priority, and the TFRP is one of the few mechanisms that pierces the corporate veil without litigation.

What are trust fund taxes?

When an employer pays an employee, federal law requires the employer to withhold three types of tax from the employee’s paycheck:

1. Federal income tax (based on the employee’s W-4 elections)
2. Employee’s share of Social Security tax (6.2% up to the wage base)
3. Employee’s share of Medicare tax (1.45%, plus 0.9% additional Medicare tax on wages above $200,000)

These withheld amounts are “trust fund” taxes because the employer holds them in trust for the government. The money belongs to the employee and the government from the moment it is withheld. The employer is merely the collection agent.

The employer also owes its own share of Social Security and Medicare (the “employer match”), plus Federal Unemployment Tax (FUTA). These are the employer’s own obligations, not trust fund taxes. The TFRP applies only to the trust fund portion (the amounts withheld from employees), not to the employer’s matching share or FUTA.

For a business with $500,000 in annual payroll, the trust fund taxes can easily exceed $100,000 per year. Missing two quarters of payroll tax deposits can produce a TFRP of $50,000 or more per responsible person.

Who is a “responsible person”?

Under IRC 6672, a responsible person is anyone who is required to collect, truthfully account for, and pay over the trust fund taxes. The IRS interprets this broadly. The test is whether the person had the duty and authority to ensure the taxes were paid. The IRS looks at:

Signature authority on business bank accounts. If you can sign checks or authorize payments from the business account, you likely have the authority to direct payment to the IRS.

Authority to hire and fire. If you make employment decisions, you are involved in the business’s financial management.

Authority to determine which creditors get paid. This is the critical factor. If you decided to pay the landlord, the suppliers, or the bank loan before paying the IRS, you exercised authority over the trust fund taxes.

Day-to-day financial management. If you managed the books, processed payroll, or made financial decisions for the business, you are a potential responsible person.

The IRS commonly asserts TFRP against:

• Business owners (sole proprietors, LLC members, corporate shareholders who are actively involved)
• Corporate officers (CEO, CFO, president, treasurer)
• Directors who participate in financial decisions
• Bookkeepers or controllers who had authority to direct payments
• Outside payroll service providers (rare, but possible if the provider held the funds and failed to remit)

You do not need to be a formal officer or owner. An employee with check-signing authority who directs which bills get paid can be a responsible person. Conversely, a passive investor with no involvement in operations is generally not a responsible person, even if they hold a majority ownership stake.

What does “willfully” mean in this context?

The “willfulness” requirement for the TFRP is different from the criminal willfulness standard. For TFRP purposes, willfulness means a voluntary, conscious, and intentional act, not necessarily a bad motive. It includes:

Knowing failure to pay. If you knew the trust fund taxes were due and chose to pay other creditors first, that is willful. You do not need to intend to evade tax; you just need to make a conscious decision to use the trust fund money for something other than paying the IRS.

Reckless disregard. If you should have known the taxes were not being paid (you were the person responsible for the finances and did not bother to check), that can constitute willfulness through reckless disregard.

Reasonable cause defense. If you did not know the taxes were due and had a reasonable basis for not knowing (you relied on a payroll service that you believed was making the deposits, and you had no reason to doubt it), you may have a defense against the willfulness element. But ignorance alone is not enough; you must show you took reasonable steps to ensure compliance.

The courts have consistently held that paying other creditors while knowing that payroll taxes are owed constitutes willfulness, even if the reason for paying other creditors first was to keep the business alive. The IRS’s position is that trust fund taxes are not the employer’s money to use, and using them for other business expenses is a conscious choice.

How does the IRS assess the TFRP?

The IRS follows a specific investigation process:

1. The business falls behind on payroll tax deposits. The IRS notices through its matching system or through the business’s failure to file Form 941 (quarterly employment tax return).

2. A revenue officer is assigned. The revenue officer investigates the business’s failure and determines who the responsible persons are.

3. Form 4180 interview. The revenue officer interviews potential responsible persons using Form 4180 (Report of Interview with Individual Relative to Trust Fund Recovery Penalty). The questions cover your role in the business, your authority over finances, your knowledge of the unpaid taxes, and your decisions about which creditors to pay. This interview is critical. What you say becomes the evidence for or against the TFRP assessment. You have the right to have an attorney or representative present.

4. Letter 1153 (proposed assessment). The IRS sends a letter proposing the TFRP and giving you 60 days to appeal within the IRS (to IRS Appeals) before the assessment becomes final.

5. Assessment. If you do not appeal within 60 days, or if the appeal is unsuccessful, the IRS assesses the TFRP. It becomes a personal tax liability that the IRS can collect through levies, liens, and all other collection tools.

How do I fight a TFRP?

Before the assessment (Letter 1153 stage):

Appeal within 60 days. The IRS Appeals function reviews the revenue officer’s determination. Your arguments:

• You were not a responsible person (you did not have authority over financial decisions)
• You were not willful (you did not know the taxes were unpaid, or you took reasonable steps to ensure they were paid)
• The amount is wrong (the IRS miscalculated the trust fund portion)

After the assessment:

Pay a small amount (one employee’s trust fund tax for one quarter) and file a refund claim on Form 843. If the IRS denies the refund claim (or does not act within six months), file suit in federal district court or the Court of Federal Claims. This is the Flora partial-payment rule: you do not need to pay the full amount before suing, but you must pay at least the liability for one employee for one quarter.

If you are also facing a large balance, an installment agreement or Offer in Compromise may be available. The TFRP is a personal liability assessed on Form 1040, so it is eligible for the same collection alternatives as any other personal tax debt.

How does this apply to cross-border businesses?

For Canadian-resident business owners with US operations (or US-resident owners of Canadian businesses with US employees), the TFRP has cross-border implications:

Canadian residents with US business presence. If you are a Canadian resident who owns or manages a US business with employees, you are subject to the TFRP on the same terms as any US person. The IRS can assess the penalty against you personally and collect from your US assets. For collection against Canadian assets, the IRS would need to invoke the treaty collection provisions (Article XXVIA).

Comparison with Canadian director’s liability. The TFRP under IRC 6672 is the US equivalent of Canadian director’s liability under ITA 227.1. Both provisions impose personal liability on individuals who control a business’s payroll tax remittances. The key differences: the Canadian defense is “due diligence” (an objective-subjective standard), while the US defense is “lack of willfulness” (a more subjective standard). The Canadian provision has a two-year limitation from ceasing to be a director; the US provision has a three-year assessment period from the date the return was filed or due.

Dual-country payroll. If a business has employees in both countries, the trust fund obligations exist independently in each country. Falling behind on US payroll tax deposits while staying current on Canadian source deductions (or vice versa) creates liability in only one country, but the financial stress that causes one failure often causes both.

What should I do next?

If your business is currently behind on payroll tax deposits: make the deposit immediately, even if it means falling behind on other obligations. Trust fund taxes are the one creditor that can become a personal liability. If the IRS has assigned a revenue officer: do not attend the Form 4180 interview alone. If you have received Letter 1153: appeal within 60 days. If the TFRP has already been assessed: evaluate the collection alternatives (installment agreement, OIC, Currently Not Collectible) and consider the partial-payment refund suit route if you have a viable defense.

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.