TSSE on your paycheck stands for Tax, Social Security, Employee. It represents the Social Security tax withheld from your wages, which is your share of the Federal Insurance Contributions Act (FICA) tax. The current employee rate is 6.2% of your gross earnings, up to the annual wage base set by the Social Security Administration.
How Social Security Tax Works
Every worker covered by Social Security splits the tax with their employer. You pay 6.2% of each paycheck, and your employer matches that with another 6.2%, for a combined 12.4%. The TSSE line on your pay stub shows only the employee portion, which is the amount coming out of your check.
This tax applies to wages up to a cap that adjusts each year for inflation. Once your cumulative earnings for the year hit that cap, Social Security withholding stops and you’ll see the TSSE deduction drop to zero on subsequent paychecks. If you earn well below the cap, you’ll see the deduction on every paycheck throughout the year.
Why the Abbreviation Varies
Payroll systems use different codes depending on the software your employer runs. You might see Social Security tax labeled as TSSE, OASDI (Old-Age, Survivors, and Disability Insurance), FICA-SS, SS Tax, or simply SOC SEC. They all refer to the same withholding. If your pay stub also shows a line labeled TTME, TME, or something similar with “Medicare” in the description, that’s the separate Medicare tax of 1.45%, which is the other half of FICA.
How TSSE Affects Your Take-Home Pay
Social Security tax is not voluntary. It’s withheld automatically before you receive your paycheck, alongside federal income tax, Medicare tax, and any state income tax. On a $1,000 gross paycheck, the TSSE deduction would be $62. Combined with the 1.45% Medicare tax, your total FICA withholding comes to $76.50 per $1,000 earned.
One important detail: Social Security and Medicare taxes do not reduce your taxable income for federal income tax purposes. Unlike a 401(k) contribution, which lowers the income figure used to calculate your federal tax, FICA taxes are calculated on your full gross wages. So the TSSE amount is taken out of your pay, but it doesn’t give you a tax break on your income tax return.
What You’re Paying For
The money withheld under TSSE funds Social Security benefits, which include retirement payments, disability income, and survivor benefits for families of deceased workers. Your contributions build your earnings record with the Social Security Administration. The amount you eventually receive in retirement depends on your 35 highest-earning years and the age at which you start collecting benefits.
You can check your earnings record and estimated future benefits by creating an account at ssa.gov. This is worth doing periodically to confirm your employer is reporting your wages correctly, since errors in your record could reduce your benefits later.
When TSSE Withholding Stops or Changes
Once your year-to-date earnings reach the Social Security wage base, your employer stops withholding the 6.2% for the rest of the calendar year. If you work multiple jobs, each employer withholds independently based on what they pay you. That means you could have too much Social Security tax withheld across two or more jobs if your combined earnings exceed the cap. If that happens, you can claim the excess as a credit when you file your federal tax return.
Withholding resets every January, so you’ll see the TSSE deduction reappear on your first paycheck of the new year regardless of what happened the previous year.
How to Verify the Amount Is Correct
Multiply your gross wages for the pay period by 0.062. The result should match the TSSE amount on your stub, assuming all your earnings are subject to Social Security tax. Certain pre-tax deductions like contributions to a health savings account or a Section 125 cafeteria plan may reduce the wages subject to FICA, which would make the number slightly lower than a straight 6.2% of your gross pay. If the math doesn’t line up and you can’t account for the difference, your payroll or HR department can walk you through the calculation.