I’m a server. Why do I owe taxes every year when I file?
The short answer
Example: where an April bill comes from
Say you worked all year at a low cash wage and reported most of your tips to your employer. Every amount below is made up to show how the pieces add up. Social Security and Medicare are figured at the employee rates of 6.2% and 1.45%.
| What’s on your return | Amount |
|---|---|
| Income tax your return shows, minus the income tax withheld all year | $600.00 |
| W-2 box 12 code A: Social Security on $1,000 of reported tips your employer couldn’t collect (6.2%) | $62.00 |
| W-2 box 12 code B: Medicare on the same $1,000 (1.45%) | $14.50 |
| Form 4137: Social Security and Medicare on $1,500 of cash tips you didn’t report to your employer (7.65%) | $114.75 |
| Total due when you file | $791.25 |
- The first row is the one most people notice. It grows when your paychecks were too small to withhold income tax on your tips.
- Codes A and B are tax your employer already figured but couldn’t take out of your pay. The IRS says you must report them as additional tax on your return.
- The Form 4137 row only exists if you kept cash tips off your monthly tip reports. Reporting them to your employer next year moves that tax back into withholding.
Your numbers will differ. The new federal tip deduction can lower the income tax row if you qualify, but it doesn’t touch the other rows (see Do I still pay Social Security and Medicare on tips?). Not tax or legal advice.
Plain English
Why a tipped paycheck under-withholds
IRS Publication 531 says your regular pay may not be enough for your employer to withhold all the taxes you owe on your pay plus your reported tips. When that happens, your employer covers taxes in this order: all taxes on your regular pay, then Social Security and Medicare on your tips, then income tax on your tips. Income tax on tips comes last, so it’s the part that gets skipped. See Why is my server paycheck so small? for how a check can hit $0.
Taxes left unpaid during the year can come out of your next paycheck. You can also give your employer money to cover them any time before the year ends. If withholding is still short at year end, Publication 505 applies and you may owe a penalty for underpaying estimated tax.
Read your W-2 first
- Box 1: your wages plus the tips you reported to your employer.
- Box 7: the tips you reported, even if your employer couldn’t collect all the Social Security tax on them.
- Box 12, codes A and B: Social Security (A) and Medicare (B) on your tips that your employer couldn’t collect. You add these to your tax when you file.
- Box 8: allocated tips, which are not in box 1. See What are allocated tips?
How to stop owing next April
- Run the IRS Tax Withholding Estimator with your most recent pay stubs. The IRS built it for people with a W-2 job, so it fits a server with a paycheck.
- Give your employer a new Form W-4. The W-4 has a place to enter an extra amount to withhold each pay period. The estimator gives you the number.
- Report every tip each month. Tips of $20 or more in a month at one job go on a written report to your employer by the 10th of the next month. Reported tips get withheld on; unreported tips land on Form 4137.
- If your checks are too small to withhold from, you can hand your employer money for the taxes before the year ends, as Publication 531 allows.
- Estimated payments are the other route. The IRS says people generally make estimated payments if they expect to owe $1,000 or more when they file. As an employee, it says you can instead ask your employer to withhold more on a new W-4.
If you had a second job with no withholding, such as gig work, that income adds to what you owe too. Your state may tax tips differently.
Common mistakes
- Skipping box 12 on the W-2. Codes A and B are tax you still owe.
- Waiting until April to find out. The withholding estimator works any month.
- Leaving cash tips off your monthly report to keep checks bigger. The tax still comes due, on Form 4137.
- Assuming the new federal tip deduction wipes out the bill. It’s an income tax deduction only.
Official sources
- IRS Publication 531, Reporting Tip Income (giving your employer money for taxes; uncollected taxes in box 12 codes A and B)irs.gov
- IRS: 2026 General Instructions for Forms W-2 and W-3 (boxes 1, 7, 8; box 12 codes A and B)irs.gov
- IRS: Tax Withholding Estimatorirs.gov
- IRS: Estimated taxes (the $1,000 rule; employees can adjust Form W-4 instead)irs.gov
- IRS Topic 751, Social Security and Medicare withholding ratesirs.gov
Last verified:
Checked IRS Publication 531 (Rev. December 2024: order of withholding, giving your employer money, uncollected tax shown in box 12 codes A and B, monthly tip reports), the 2026 W-2 instructions (boxes 1, 7, 8, codes A and B), the Tax Withholding Estimator page (reviewed June 27, 2026), the estimated taxes page (reviewed June 28, 2026), and Topic 751 (6.2% and 1.45%).