What is a restaurant service charge, and should you add one?

A service charge is an amount the restaurant sets and adds to the bill, such as 18% on parties of six or more, while a tip is an amount the guest freely chooses. For tax purposes the charge is the restaurant's own revenue, and the part you pay out to staff is wages, not tips, which changes your payroll taxes, the FICA tip credit and what you have to show guests.

Service charge or tip: the IRS's four tests

The IRS doesn't go by the label on the bill. Revenue Ruling 2012-18 says a payment may be a service charge, not a tip, when any of these is missing:

• The guest pays it free from compulsion.
• The guest has the unrestricted right to decide the amount.
• The amount isn't negotiated or dictated by the restaurant's policy.
• Generally, the guest decides who receives it.

The ruling's own example is a menu that adds 18% to every bill for parties of six or more: not a tip, because the guest didn't choose it. The IRS tip reporting page adds a required gratuity in an event contract, and a payment screen that makes the guest pick a tip above zero. Two things stay tips: suggested amounts printed on the receipt when the tip line is left blank, and anything a guest adds on top of a service charge.

What a service charge changes for you

It's your revenue

The IRS says service charges are income to the restaurant whether you pay out all of them, part of them or none. For federal tax, you decide how they're split; with a tip, the guest decides.

Paid out, it's wages

What you pay staff from a service charge goes on their W-2 as wages, and Publication 15 tells employers to withhold on service charges as on regular wages. The ruling makes it wages for Social Security and Medicare too, so you pay the employer's 6.2% plus 1.45%, 7.65% in all (IRS Topic 751). You pay the same 7.65% on tips your staff report. The difference is what comes back.

No FICA tip credit on it

The FICA tip credit gives back the employer's 7.65% on reported tips as a credit against federal income tax, on Form 8846. The IRS page says distributed service charges and auto-gratuities are non-tip wages, left out of the credit. The credit only lowers income tax the business owes, and the law allows no deduction for the tax it covers.

Not a tip for “no tax on tips”

The 2025 deduction lets workers deduct qualified tips on their own federal return. The IRS's release on the final rules says qualified tips are paid voluntarily and don't include a service charge unless the guest can disregard or modify it; its example is an automatic 18% for large parties. So a server can't deduct pay that came from a service charge. The deduction doesn't change what you pay as the employer either way: what no tax on tips means for restaurant owners.

It counts toward minimum wage

Under federal wage law, the Department of Labor's fact sheet on tipped employees says a compulsory service charge isn't a tip, may be used toward the employer's minimum wage and overtime pay, and counts in the regular rate for overtime. Each state's tipped cash wage is in the tipped minimum wage guide.

A worked example: the same 18%, two ways

A full-service restaurant sells $40,000 a month of dine-in food and drink, before tax. Guests either tip 18% or pay the same 18% as a service charge that all goes to staff. Its servers' cash wage is at least $5.15 an hour, the rate the credit's law uses, so every reported tip counts toward the credit. The figures are round examples.

It moves your labor cost too. The labor cost guide leaves tips out of both sales and labor, as RestaurantDoctorAI's targets do, but a service charge is sales and its payout is payroll. Say payroll with its taxes is $12,000 before the 18%. As tips, labor is ($12,000 + $550.80) ÷ $40,000 = 31.4% of sales. As a service charge, it's ($12,000 + $7,200 + $550.80) ÷ $47,200 = 41.8%. Same staff, same hours, so compare months on the same basis.

Telling guests

California. Its honest pricing law, SB 478, in force since July 1, 2024, requires most listed prices to include every mandatory fee. The Attorney General's page says restaurants, bars and some other food sellers are exempt for their mandatory fees as long as the fee is clearly and conspicuously displayed wherever prices are shown, under SB 1524. Voluntary tips aren't affected.

Federal. The FTC's rule on unfair or deceptive fees, in force since May 12, 2025, covers businesses that offer live-event tickets or short-term lodging, its FAQ says. A restaurant meal is neither.

Rules differ by state and city, so read your state's own pages, its attorney general's and its labor department's, before you add a charge.

Should your restaurant add a service charge?

It fits where a set amount is expected, like large parties and event contracts, the IRS's own examples, or where you want to set how pay is shared across the team. Weigh it against:

• The FICA tip credit: none on a service charge, as the example shows.
• Sales tax: California's tax agency says an optional tip isn't taxed, but a mandatory one is part of taxable sales, even if you pay it all to staff. Check your own state's tax agency.
• Server pay: the payout runs through payroll with withholding, follows your policy, and isn't a qualified tip for their deduction. Tell staff how it's split before you start.
• Guests: anything a guest adds on top is a tip. For a month, note how often guests add one, and how often they ask about the charge.
• Your numbers: labor rises as a share of sales, so mark the month you changed.

If you'd rather keep tips, suggested amounts printed on the receipt, with the tip line left blank for the guest, stay tips, the IRS says.