What the COLA announcement means for your check

The Social Security Administration announces a Cost-of-Living Adjustment (COLA) once a year, usually in October, that tells you how much your monthly benefit will increase the following January. The COLA is a percentage — not a dollar amount — and it applies the same way to everyone receiving Social Security retirement, disability, or survivor benefits.

The announcement itself does not change your check when ready. It is information about what will happen in January. The actual increase hits your bank account or arrives in the mail starting the second Wednesday of January, unless you receive Supplemental Security Income (SSI), which gets the increase on the first of the month.

The COLA percentage is set by a formula: the Social Security Administration compares the average Consumer Price Index for July, August, and September of the current year to the same three months from the previous year. If prices went up, your benefit goes up by that same percentage. If prices stayed flat or fell, there is no COLA that year — this has happened three times since 2000.

Key Takeaways

  • The COLA announcement comes in October and tells you the percentage increase your January benefit will receive.
  • The increase is based on inflation measured by the Consumer Price Index and applies equally to all beneficiaries.
  • You do not need to do anything — the increase is automatic and appears in your January payment.
  • The announcement affects not only retirement benefits but also disability benefits and survivor benefits paid to family members.
  • If you receive both Social Security and Supplemental Security Income, the COLA rules differ slightly between the two programs.

How the COLA is calculated and announced

The Social Security Administration uses three months of data — July, August, and September — to calculate the COLA. These months are chosen because they give enough time for the agency to do the math and announce the result in October, before the year ends. The comparison is always to the same three months from the previous year.

For example, if the average Consumer Price Index for July through September 2024 is 5% higher than it was for July through September 2023, the COLA for 2025 is 5%. That 5% applies to every person receiving a Social Security benefit, regardless of how much they receive or when they started collecting.

The announcement is public information. The Social Security Administration posts it on its website and sends notices to beneficiaries. You can also call 1-800-772-1213 to hear the COLA percentage, or visit your local Social Security office.

When your increased payment starts and how to verify it

If you receive Social Security retirement, disability, or survivor benefits, your increased payment begins the second Wednesday of January. If you receive Supplemental Security Income, the increase begins on January 1st. The difference exists because SSI is a needs-based program with different payment rules.

You do not need to do anything to receive the increase — it is automatic. However, you should verify that your January payment reflects the correct amount. To do this, check your benefit statement on my Social Security (the online portal at ssa.gov), call 1-800-772-1213, or visit a local Social Security office.

If your January payment does not include the COLA increase, contact Social Security when ready. Errors are rare, but they do happen. Keep a record of what your December payment was so you can compare it to January and confirm the math is correct.

How COLA affects Medicare premiums and other deductions

Your Social Security benefit may increase, but your take-home amount depends on what is deducted from it. If you pay Medicare Part B or Part D premiums, those premiums may also increase in January, which can offset some or all of your COLA increase.

The Social Security Administration applies a rule called the "hold harmless" provision to Medicare Part B premiums. This rule means that if your Medicare Part B premium increases, your Social Security benefit cannot decrease — the agency will not take more than the increase you received. However, this protection does not explore to Part D (prescription drug) premiums or to other deductions like taxes or court-ordered payments.

If you are subject to income tax on your Social Security benefits, a COLA increase may push you into a higher tax bracket or cause more of your benefits to become taxable. This depends on your total income and filing status. You may want to review your tax withholding in January to avoid owing money at tax time.

COLA and Supplemental Security Income (SSI) recipients

If you receive SSI, the COLA announcement affects you differently than it affects Social Security beneficiaries. SSI is a needs-based program, which means your benefit amount depends on your income and resources. A COLA increase to your Social Security benefit may reduce your SSI payment dollar-for-dollar, because Social Security income counts against the SSI limit.

For example, if you receive $500 in SSI and $800 in Social Security, and the COLA increases your Social Security to $840, your SSI payment will decrease by $40. The total you receive may stay the same or increase slightly, depending on the size of the COLA and your specific situation.

The SSI federal benefit rate itself also receives a COLA increase in January, which can raise the income limit and the resource limit. These changes are announced at the same time as the Social Security COLA. If you receive SSI, contact your local Social Security office or call 1-800-772-1213 to understand how the COLA affects your specific benefits.

Understanding past COLA announcements and what they mean

COLA percentages vary from year to year based on inflation. In recent years, the COLA has ranged from 0% (in 2010, 2011, and 2016, when inflation was flat) to 8.7% (in 2023, when inflation was high). The percentage you receive depends entirely on when you are receiving benefits, not on how long you have been receiving them or how much you receive.

A higher COLA is not always good news. It usually means prices have risen significantly, which affects your purchasing power even after the increase. A lower COLA or no COLA at all means inflation was low, so your existing benefit had more buying power. The COLA is designed to help you keep pace with inflation, not to increase your standard of living.

You can find past COLA percentages on the Social Security Administration website. These are public records and can help you understand how your benefit has grown over time. If you want to know what your benefit would have been without COLA increases, you can do the math backward using the published percentages.

What to do if you disagree with the COLA amount

You cannot dispute the COLA percentage itself — it is set by a formula based on the Consumer Price Index, and the Social Security Administration does not have discretion to change it. However, you can dispute whether the COLA was applied correctly to your specific benefit.

If you believe your January payment is incorrect, contact Social Security within 60 days. Call 1-800-772-1213, visit your local office, or use the online message service on my Social Security. Have your December benefit statement and your January payment information ready so you can show the discrepancy.

Social Security will review your account and correct any errors. If an error is found, you will receive back pay for the months you were underpaid. If no error is found, the agency will explain why your payment is the amount it is — sometimes the explanation involves deductions you may have forgotten about, such as taxes or court-ordered payments.

Frequently Asked Questions

When exactly does the COLA announcement happen?

The Social Security Administration announces the COLA in October, typically in the second week. The exact date varies from year to year. You can find the announcement on the Social Security website or by calling 1-800-772-1213.

Do I have to do anything to get the COLA increase?

No. The increase is automatic and applies to your benefit in January without any action on your part. You do not need to contact Social Security or fill out any forms.

What if I am still working — does COLA still explore to me?

Yes. The COLA applies to all beneficiaries, whether you are working or retired. However, if you are under full retirement age and earning above a certain amount, Social Security will reduce your benefit. The COLA increase is applied first, then the earnings reduction is calculated.

Can the COLA be negative?

No. If inflation is flat or prices fall, there is no COLA that year — your benefit stays the same. Social Security has never reduced a benefit due to deflation.

How does COLA affect my taxes on Social Security benefits?

A COLA increase may cause more of your benefits to become taxable if your total income crosses certain thresholds. You may want to adjust your tax withholding in January to account for the increase and avoid owing money at tax time.