Social Security’s 3.6% Raise for 2027 Is Real. The Tax Thresholds That Decide Who Pays on Benefits Don’t Rise With It.
Your 2027 Social Security check gets bigger, but a pair of tax thresholds frozen in place for decades might quietly claim part of that raise before you spend a dollar of it.
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Social Security checks will grow 3.6% in 2027. Social Security estimates that the average monthly benefit for all retired workers goes from $2,095 before the increase to $2,170 after it. This annual increase is called the cost-of-living adjustment, or COLA. It is linked to inflation so that benefits keep their buying power as prices rise.
Retirees who have saw grocery and utility bills climb will be glad to see it. It also raises a question most people don’t think about until tax season: can a bigger check make more of your benefit taxable?
Two Fixed Lines Decide Whether Your Benefits Are Taxed
The IRS test is simpler than it sounds. Take one-half of your Social Security benefits and add all your other income, including tax-exempt interest, such as interest from municipal bonds. Then compare that total with a threshold that depends on your filing status. The IRS walks through the math with worksheets in Publication 915. The tax year 2025 edition is the current one.
The thresholds themselves are set by 26 U.S.C. § 86(c). The first one, called the base amount, is the point where part of your benefits can start to be taxed. The second, called the adjusted base amount, is the point where a larger share can be taxed.
| Filing status | Base amount | Adjusted base amount |
|---|---|---|
| Single | $25,000 | $34,000 |
| Married filing jointly | $32,000 | $44,000 |
| Married filing separately, lived with spouse during the year | Zero | Zero |
That last row catches people off guard. A married person who files separately and lived with their spouse at any point in the year starts from a threshold of zero. That means almost any other income can make part of their benefits taxable.
All of these thresholds are fixed dollar amounts in the statute, and the law says nothing about adjusting them for inflation. Your benefits go up with each COLA, but the lines they are measured against stay in the same place.
Retirees Just Under a Threshold Feel the Raise First
How much this matters depends on how close you already are to those lines.
People sitting just below a threshold have the most at stake. If your total came in a little under the base amount or the adjusted base amount, the 2027 increase could push you over. That could make some of your benefits taxable for the first time, or move more of them into the higher level. An extra IRA withdrawal or a bit more bond interest on top of the COLA makes crossing the line more likely (this un-indexed threshold is one of nine IRS rules we mapped in a free report on retirement tax traps).
Those well below the thresholds, such as retirees living mostly on Social Security with little other income, should see no change in how their benefits are taxed. For them, the COLA is simply more money to spend.
At the other end, retirees already well past the adjusted base amount will just have more benefit dollars counted in the calculation. A bigger check means a bigger number on the worksheet, so the COLA mainly makes their existing taxable portion larger.
A Higher Wage Base Only Matters If You Still Earn a Large Paycheck
The taxable maximum is the most you can earn in a year that is subject to Social Security payroll tax. It rises from $184,500 in 2026 to $192,300 in 2027. This only affects people who still earn wages or self-employment income near that level. It has no effect on how benefits are taxed.
The employee payroll tax rate for Social Security and Medicare combined stays at 7.65%. The Medicare part of that tax has no earnings limit, so it still applies to every dollar of pay.
Working Before Full Retirement Age Comes With Its Own Limit
Full retirement age is the age when you qualify for your full, unreduced benefit, and it depends on the year you were born. If you collect benefits before reaching it and keep working, the retirement earnings test applies. Its annual limit rises from $24,480 in 2026 to $25,560 in 2027.
If you earn more than the limit, Social Security holds back part of your benefits. Once you reach that age, your benefit is generally recalculated to give you credit for the months that were held back. From that point on, the earnings test no longer applies, and you can earn any amount without losing benefits.
Who Should Run the Numbers Before Filing
Look at your most recent return. If your test total fell close to one of the thresholds, redo the Publication 915 worksheet with your 2027 benefit before you decide when to take IRA withdrawals or sell investments. Couples who file separately should take a closer look as well. Your own mix of income decides whether this raise is all yours to spend or brings a slightly bigger tax bill with it.
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Vilma Rios is a tax professional and tax content contributor with more than 15 years of experience in tax and accounting. She specializes in federal tax research, tax education, and translating complex tax rules into clear, practical information for individuals, families, and small-business owners.
Vilma is a Content Tax Contributor II with the National Association of Tax Professionals (NATP), where she contributes to tax education and professional content. She has also presented tax information through webinars, including Spanish-language tax education, and has appeared on Telemundo 47 discussing tax topics and helping viewers understand important tax-filing requirements.
Her experience also includes tax and accounting work, tax research, IRS-related matters, and public tax education. While in college, Vilma volunteered in an IRS-sponsored tax assistance program and was recognized for her community service by local and state officials.
Known as “Your Tax Geek,” Vilma is passionate about making taxes easier to understand and helping people navigate an increasingly complex tax system.
