Picture a restaurant owner holding a letter that proposes thousands of dollars in employer Social Security and Medicare tax. On tips. Tips he never saw, never touched and never knew about. The obvious question: how can I owe tax on money my servers put in their own pockets?
Because the Internal Revenue Code says so, and the Supreme Court said the IRS can estimate the number. Here is how the aggregate tip assessment works, and where the estimate is weakest.
Why the employer owes anything on unreported tips
The employer half of FICA is imposed by IRC 3111 on wages the employer pays. IRC 3121(q) then says that tips received by an employee in the course of employment are remuneration and are deemed paid by the employer for purposes of section 3111. So tips are your wages for the employer FICA tax, even though the customer paid them.
When a server reports tips to you, they are deemed paid when the report is furnished, and you handle them through payroll. When tips go unreported, section 3121(q) adds a twist. For the employer's tax on those tips, the remuneration is deemed paid, for purposes of the Code's procedure and administration provisions, on the date the IRS makes notice and demand for the tax. Until then, you are not in default on tax nobody has asked you for.
That timing rule protects you from penalties and interest on the back years. It does not protect you from the tax.
The case that settled the method
In United States v. Fior D'Italia, Inc., 536 U.S. 238 (2002), the IRS examined a San Francisco restaurant's tip reporting for 1991 and 1992. Customers' credit card slips showed tips far above what employees had reported. The IRS computed the average tip rate on the card slips, 14.49 percent for 1991 and 14.29 percent for 1992, assumed cash customers tipped at the same rate, multiplied by total receipts, subtracted reported tips and applied the employer FICA rate to the difference. The resulting assessments were $11,976 for 1991 and $11,286 for 1992.
The restaurant argued the IRS had to estimate each employee's tips individually and add them up. The Supreme Court disagreed. It held that the Code authorizes the IRS to use the aggregate estimation method, and that an assessment made with a reasonable method carries a presumption of correctness.
Two points from the opinion matter to every restaurant owner:
- The restaurant in that case stipulated to the numbers. Fior D'Italia agreed for the litigation not to dispute the IRS's facts and estimates. The Court said that, absent such a stipulation, a taxpayer remains free to present evidence that an assessment is inaccurate in its particular case.
- The burden is practical, not impossible. The Court said the restaurant need not prove the inaccuracies with precision. It need only show that the aggregate method likely produced an inaccurate result in its case.
Where the aggregate estimate goes wrong
The Fior D'Italia opinion itself lists the weak spots in the method. Every one of them is a fact question you can develop with your own records.
Cash customers tip differently
The method assumes cash customers tip at the card rate. The Court noted the restaurant's argument that cash-paying customers tend to leave a lower percentage. If your POS data or your staff's daily tip records support a lower cash tip rate, the estimate should come down.
Not every check gets a tip
Some customers leave nothing. Some write a big tip on the slip and ask for cash back. The card-slip rate does not capture either pattern.
Card fees taken from tips
If the restaurant deducted the card processing fee from charged tips before paying them out, employees received less than the slip shows. The Court mentioned this specifically.
The $20 floor
Under IRC 3121(a)(12)(B), cash tips under $20 in a month from one employer are not FICA wages. Staff who worked only a shift or two may fall under the floor.
The Social Security wage base
The Social Security portion of FICA applies only up to the annual wage base. The Court gave an example: if a server's reported pay already exceeds the base, additional unreported tips add no more Social Security tax. In a restaurant with highly paid servers or managers who share in tips, this can matter.
Wrong receipts in the base
Carryout sales, catering with service charges and other receipts where tipping is not customary do not belong in a tip estimate. If the examiner applied the tip rate to total gross receipts, check what is in that number.
How the case usually unfolds
An aggregate tip case typically starts with the paperwork you already gave the IRS. Your Form 8027, if you file one, shows charged tips, charge receipts, total receipts and reported tips. The examiner can compute the card tip rate and the reported tip rate before requesting anything. Then come requests for POS reports, tip reports, payroll registers and card processor statements.
Before you produce anything, rebuild the computation yourself. Split receipts into dine-in, carryout and service-charge sales. Pull the card tip rate by period. Look for evidence of the cash tip rate. Identify short-tenure employees and anyone over the wage base. You want to know your number before you argue about theirs.
If the proposed assessment stands after the examination, you have the usual paths for disputed employment taxes, including review by the IRS Independent Office of Appeals. Building the record during the examination matters, because the record follows the case.
The credit that softens the blow
Congress did soften the blow. IRC 45B gives food and beverage employers a credit for employer FICA tax paid under section 3111 on tips, to the extent the tips exceed the amount needed to bring the employee's wages up to the federal minimum wage as the statute defines it. Section 45B(b)(1)(A) applies to tips deemed paid under section 3121(q) whether or not they were reported under section 6053. The Court in Fior D'Italia noted this credit. The credit is part of the general business credit under IRC 38, so the general business credit limits apply. We explain the computation in our guide to the FICA tip credit.
The credit does not erase an assessment. It changes the math on what the assessment really costs you, and it belongs in any settlement conversation.
The IRS cannot use audit threats to force a tip agreement
The IRS offers voluntary tip reporting agreements that, among other things, can limit how the IRS approaches employer FICA on tips. Restaurants sometimes feel pressured into them. In the IRS Restructuring and Reform Act of 1998, Congress told the IRS to instruct its employees that they may not threaten to audit a taxpayer to coerce it into a Tip Reporting Alternative Commitment agreement. That instruction appears as a statutory note to IRC 6053. Read more in our guide to TRAC, TRDA and SITCA.
Prevention beats defense
The Supreme Court said the Code contemplates a restaurant that does not police employee tip reporting, and that such a restaurant may need a reserve for later liability. That is a polite way of saying the risk sits with you unless your reporting system is strong. The cheapest aggregate tip case is the one where reported tips already track the card rate. Our guide to the owner's tip reporting duties lays out what that system looks like. For the broader audit picture, see how the IRS audits restaurant sales.
If you are already looking at a proposed assessment, the firm's IRS audit page explains how it approaches examinations.
The IRS gets to estimate. You get to show why the estimate is wrong. Bring evidence, not outrage.