FICA Tax Changes for 2021 — How Will Your Paycheck Change?

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If you noticed some changes in your paycheck and withholding taxes this year, you’re not alone. September of last year brought a “payroll tax holiday” to many W-2 workers, which allowed employers to defer payroll taxes through Dec. 31, 2020. Notably, the Social Security portion of Federal Insurance Contributions Act taxes did not have to be collected or paid between Sept. 1 and Dec. 31 of last year, equating to a 6.2% increase in your paycheck.

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But the “holiday” was anything but a gift — It needs to be paid back between now and April 1. That extra 6.2% you may have seen in your paycheck if your employer opted to take advantage of the “holiday” will now come out of your check under your Social Security taxes, along with this year’s Social Security withholding taxes. For many Americans, this could really mess with your new year’s budgeting plans.

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Some six-figure earners will also see another change in the withholding section of their paychecks. The Social Security taxable wage base (noted as OASDI on your paycheck, which stands for Old Age, Survivors and Disability Insurance) has increased from $137,700 in 2020 to $142,800 in 2021. That means OASDI taxes will come out of the first $142,800 you earn rather than the first $137,700. The taxable wage base for Medicare tax (HI, or Hospital Insurance) stays the same this year as last.

The percentage of FICA taxes you pay, aside from repaying last year’s payroll taxes not withheld, will remain the same as in 2020: 6.2% for Social Security, 1.45% for Medicare on the first $200,000 of wages and 2.35% for any portion of wages exceeding $200,000 ($250,000 for joint returns and $125,000 for married, filing single).

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Last updated: Jan. 22, 2021

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About the Author

Dawn Allcot is a full-time freelance writer and content marketing specialist who geeks out about finance, e-commerce, technology, and real estate. Her lengthy list of publishing credits include Bankrate, Lending Tree, and Chase Bank. She is the founder and owner of, a travel, technology, and entertainment website. She lives on Long Island, New York, with a veritable menagerie that includes 2 cats, a rambunctious kitten, and three lizards of varying sizes and personalities – plus her two kids and husband. Find her on Twitter, @DawnAllcot.
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