To calculate the Social Security tax on tips, multiply your reported cash tips for the month by 6.2%, and add 1.45% for Medicare, for a combined FICA rate of 7.65%. Your employer withholds this from your paycheck alongside the tax on your regular wages. The arithmetic is easy; the work is in knowing which tips belong in the calculation and what happens when the numbers don’t line up cleanly.
Which Tips Go Into the Calculation
Only cash tips count for FICA. That includes actual currency handed to you, credit and debit card tips paid out through your employer, and your net share of any tip pool or splitting arrangement. If you participate in a pool, count what you keep, not what passed through your hands.1Internal Revenue Service. Publication 531 (12/2024), Reporting Tip Income
Non-cash tips stay out of the calculation entirely. Tickets, merchandise, passes, or anything of value that isn’t money is taxable income on your return, but the statute excludes “tips paid in any medium other than cash” from FICA wages.2Office of the Law Revision Counsel. 26 USC 3121 – Definitions
There is also a monthly floor. If your cash tips from a single employer come to less than $20 in a calendar month, none of them are FICA wages.2Office of the Law Revision Counsel. 26 USC 3121 – Definitions The $20 threshold is per employer, so two tipped jobs are tracked separately. Once you cross $20 in a month at a given employer, every dollar of that month’s cash tips from that job becomes subject to the 7.65% rate.3Internal Revenue Service. Tip Income Is Taxable and Must Be Reported
Service Charges Are Not Tips
A mandatory service charge, like an automatic 18% added for a large party, is not a tip. The IRS applies four tests: the payment must be voluntary, the customer must control the amount, the amount can’t be dictated by employer policy, and the customer generally decides who receives it. If any of those elements is missing, the payment is a service charge and your employer runs it through normal payroll as wages.4IRS.gov. Section 3121 – Tips Included for Both Employee and Employer Taxes Don’t include service charges in your tip total when you calculate FICA on tips; they’re already being taxed as regular pay.
The Math
Take your total reportable cash tips for the pay period or month and apply the two rates:
- Social Security tax: 6.2% of your reported tips
- Medicare tax: 1.45% of your reported tips
Combined, that’s 7.65 cents on every dollar of reported tips. Your employer owes a matching 7.65% on the same amount.5Internal Revenue Service. FICA Tip Credit for Employers
A worked example: you report $2,400 in tips for the month. Multiply $2,400 by 0.062 to get $148.80 in Social Security tax. Multiply $2,400 by 0.0145 to get $34.80 in Medicare tax. Your FICA total is $183.60. Your employer adds the reported tips to your regular wages and withholds these amounts, along with income tax on the same tips, from your paycheck for that period.6Internal Revenue Service. Topic No. 761, Tips – Withholding and Reporting
The Social Security Wage Base
The 6.2% Social Security portion only applies up to an annual earnings ceiling. For 2026, that ceiling is $184,500.7Social Security Administration. Contribution and Benefit Base The cap covers all your FICA wages combined: hourly pay, salary, and tips. Once your total for the year crosses that line, you stop owing the Social Security portion for the rest of the year. Medicare has no cap and keeps running at 1.45% on every additional dollar.8Social Security Administration. Social Security Tax Limits on Your Earnings
Most tipped workers never reach this ceiling. It matters if you hold a high-paying salaried job alongside tipped work, or if you work at a high-volume establishment and are pushing into six figures on tips and wages combined.
Additional Medicare Tax
An extra 0.9% Medicare tax kicks in on wages above $200,000, or $250,000 for married couples filing jointly. Your employer begins withholding it once your wages from that job alone pass $200,000 in a calendar year, regardless of your filing status. If joint household income is what actually triggers the tax, you settle up on your return.9Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
Tips count toward this threshold the same as any other wages. A tipped worker with $210,000 in total compensation owes the standard 1.45% on everything, plus another 0.9% on the $10,000 above $200,000.
When Your Paycheck Can’t Cover the FICA on Tips
If your base hourly wages aren’t large enough to absorb the withholding on your tips, your employer can only take what your paycheck can cover. The IRS priority order is: tax on your base wages first, then Social Security and Medicare on your tips, then income tax on your tips.6Internal Revenue Service. Topic No. 761, Tips – Withholding and Reporting
If your employer can’t collect the full FICA on tips by the 10th of the month after you reported them, they stop trying. Any uncollected amount appears in box 12 of your W-2 under codes A (Social Security) and B (Medicare), and you pay it with your return on Schedule 2 of Form 1040.6Internal Revenue Service. Topic No. 761, Tips – Withholding and Reporting If this pattern repeats, estimated tax payments during the year can head off a large April bill.
Tips You Didn’t Report to Your Employer
If you received $20 or more in cash tips in a month from an employer but didn’t hand in a full report, you still owe FICA on the missing amount. You calculate it yourself on Form 4137, Social Security and Medicare Tax on Unreported Tip Income, and attach it to your annual return.3Internal Revenue Service. Tip Income Is Taxable and Must Be Reported
The form runs the same arithmetic: enter total tips received, subtract what you already reported, and apply 6.2% and 1.45% to the difference. The result flows to Schedule 2.10IRS. Form 4137, Social Security and Medicare Tax on Unreported Tip Income
There is a penalty for not reporting to your employer in the first place: 50% of the Social Security and Medicare tax that should have been withheld on the unreported amount. You can avoid it by showing reasonable cause with a written explanation attached to your return.11Office of the Law Revision Counsel. 26 USC 6652 – Failure To File Certain Information Returns, Registration Statements, Etc.
Allocated Tips on Your W-2
Large food and beverage employers must allocate additional tips to directly tipped employees when the total tips reported by staff fall below 8% of gross receipts. Your allocated share appears in box 8 of your W-2, separate from the wages and reported tips in box 1. No Social Security, Medicare, or income tax has been withheld on that box 8 figure.12Internal Revenue Service. 2025 Instructions for Form 8027 – Employers Annual Information Return of Tip Income and Allocated Tips
You must include allocated tips in income unless your own daily records show you actually received less than the allocated amount.1Internal Revenue Service. Publication 531 (12/2024), Reporting Tip Income When you do have to include them, you calculate the FICA the same way as any other unreported tips, through Form 4137. This is the reason a daily tip log matters: without your own records, you have no way to push back on an allocation that exceeds what you earned.
The New Tip Deduction Does Not Change This
Starting with the 2025 tax year, a federal deduction for qualifying tip income reduces the amount of tips subject to income tax. It does not change the FICA calculation. Social Security and Medicare tax still apply to your full reported cash tips at 7.65%, subject to the wage base and thresholds above. Non-cash tips remain outside the deduction as well. If you’re figuring out what you owe in payroll tax on tips, the new law changes nothing about the math.