What happens to Social Security in December 2025
Social Security payments adjust each year based on inflation, and December 2025 will bring the annual cost-of-living adjustment (COLA). This means most people receiving Social Security will see their monthly payment increase starting with the December payment (which arrives in January 2026 for most recipients). The exact percentage increase depends on inflation data collected through September 2025, which the Social Security Administration will announce in October.
Beyond the COLA increase, December 2025 also marks when certain earnings limits change for people who are still working while receiving benefits. If you work and collect Social Security before your full retirement age, you face an earnings cap — earn above it, and Social Security reduces your payment. That cap rises each year, and the new limit takes effect in December.
Additionally, the maximum amount of income subject to Social Security tax increases annually. This affects how much higher-earning workers and self-employed people pay into the system, though it does not directly change your benefit amount unless you continue working and earning.
Key Takeaways
- Your Social Security payment will increase in December 2025 through the annual cost-of-living adjustment, with the exact percentage announced in October 2025.
- If you work while receiving Social Security before full retirement age, the earnings limit that triggers benefit reductions will increase in December 2025.
- The maximum income subject to Social Security tax rises each year and will change in December 2025, affecting what higher earners and self-employed people contribute.
- The December payment arrives in January 2026 for most beneficiaries, so you will see the increase in your first payment of the new year.
- You do not need to take any action to receive the COLA increase — it happens automatically for all beneficiaries.
How the cost-of-living adjustment works
The COLA is a percentage increase meant to keep your benefits in line with inflation. The Social Security Administration calculates it using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), measured from the third quarter of one year to the third quarter of the next. For the December 2025 adjustment, the comparison runs from July through September 2024 versus July through September 2025.
The COLA percentage varies year to year. In recent years it has ranged from 3.2% to 8.7%, depending on how much prices rose. A higher COLA means a larger dollar increase to your monthly payment. The Social Security Administration announces the exact percentage in mid-October, so you will know the amount before December arrives.
Everyone receiving Social Security — retirees, disabled workers, and survivors — receives the same COLA percentage. The dollar amount of your increase depends on your current benefit, so someone receiving $2,000 per month will see a larger dollar increase than someone receiving $1,500 per month, even though the percentage is identical.
Earnings limits for people still working
If you are receiving Social Security but have not yet reached your full retirement age, you can work and earn money, but there is a limit. For every $2 you earn above the limit, Social Security reduces your benefit by $1. This earnings test applies only to people under full retirement age; once you reach it, you can earn as much as you want without any reduction.
The earnings limit increases each December. In 2025, the limit is $23,400 per year. The new limit for 2026 (which takes effect in December 2025) will be higher, though the exact amount is not yet public. The Social Security Administration typically announces the new limit in October alongside the COLA percentage.
The earnings test counts wages from employment and net income from self-employment, but not investment income, pensions, or other retirement payments. If you are close to the earnings limit, tracking your income carefully matters — you want to know whether you will trigger a benefit reduction before it happens.
Maximum taxable earnings and what it means for you
Social Security is funded through payroll taxes. There is a cap on how much income is subject to these taxes each year — anything you earn above that cap is not taxed for Social Security purposes. In 2025, that cap is $168,600. The new cap for 2026 (taking effect in December 2025) will be higher, reflecting wage growth in the economy.
If you are an employee, you and your employer each pay 6.2% of your wages up to the cap. If you are self-employed, you pay 12.4% on net self-employment income up to the cap. The higher the cap, the more high earners contribute to the system, but it does not change your benefit calculation unless you continue working after claiming Social Security.
For most people, this change is invisible — your employer handles the tax withholding automatically. But if you are self-employed or earn close to the cap, you may want to know the new limit when it is announced in October so you can plan your tax payments accurately.
When you will see the payment increase
Social Security payments are distributed on a schedule based on your birth date. Most beneficiaries receive payments on the second, third, or fourth Wednesday of each month. The December 2025 payment follows this same schedule, arriving in mid-to-late December for most people.
However, if your payment date falls early in the month, you may receive the December payment before the official December 1 effective date of the COLA increase. In that case, you will see the increase in your January 2026 payment instead. The Social Security Administration's website shows your specific payment date if you have a my Social Security account.
If you receive your Social Security payment by direct deposit, the money will appear in your bank account on your scheduled payment date. If you receive a paper check, allow extra time for mail delivery.
What you need to do
You do not need to take any action to receive the COLA increase or the updated earnings limit. Both changes happen automatically. If you are working and receiving Social Security, you should simply be aware that the earnings limit will rise in December, which may give you more room to earn without triggering a benefit reduction.
If you want to know the exact COLA percentage and the new earnings limit before December, check the Social Security Administration website in October 2025. You can also create or log into a my Social Security account to see your current payment amount and verify your payment date.
If you are approaching full retirement age and still working, it may be worth reviewing your earnings for the year to estimate whether you will hit the earnings limit. The Social Security Administration has a benefits calculator and earnings test information on its website to help you plan.
How inflation affects your long-term benefits
The COLA adjustment is designed to preserve your purchasing power over time. Without it, inflation would gradually erode the value of your monthly payment. Over many years of retirement, these annual adjustments add up significantly.
However, the COLA is based on the CPI-W, which measures inflation for urban wage earners and may not perfectly match the inflation experienced by retirees, who tend to spend more on healthcare and housing. Some research suggests the CPI-W understates inflation for older adults, meaning the COLA may not fully keep pace with the costs retirees actually face. This is a limitation of the current system, not something you can change, but it is worth understanding.
Frequently Asked Questions
Will my Medicare premium increase in December 2025?
Medicare premiums are set separately from Social Security and may change on a different schedule. Most Medicare beneficiaries have their Part B premium deducted directly from their Social Security payment. If your Social Security payment increases due to COLA, your net increase may be smaller if your Medicare premium also rises. The Centers for Medicare and Medicaid Services announces Medicare premiums in the fall.
What if I am still working and will exceed the earnings limit?
Report your expected earnings to Social Security so they can adjust your payment correctly. You can contact Social Security by phone at 1-800-772-1213 or through your my Social Security account. It is better to report early than to receive an overpayment that you will owe back later.
Does the COLA increase apply to Supplemental Security Income (SSI)?
SSI is a separate program from Social Security retirement and disability benefits. SSI recipients do receive a COLA increase in December, but the amount may differ because SSI has different rules and payment levels. If you receive SSI, the Social Security Administration will notify you of your new payment amount.
Can I find out the COLA percentage before October?
The Social Security Administration does not announce the COLA percentage until mid-October, after collecting the final inflation data. Some financial websites publish estimates based on inflation trends, but these are projections, not official figures. The official announcement in October is the only confirmed number.
If I delay claiming Social Security, do I still get the COLA increase?
The COLA applies only to people already receiving Social Security payments. If you have not claimed yet, you do not receive the adjustment. However, if you delay claiming, your benefit amount will be higher when you do claim, because benefits increase by roughly 8% per year between your full retirement age and age 70.