The most common reason: a cost-of-living adjustment (COLA)
If you received two payments in one month, you most likely got your regular monthly check plus a cost-of-living adjustment. Social Security pays this once a year in January, and it raises the amount of every monthly check going forward. The adjustment is meant to help your benefits keep pace with inflation.
The COLA amount changes each year based on how much prices rose for everyday items like food, housing, and medical care. In some years the adjustment is small. In others it is larger. Social Security announces the new COLA in October, and the extra payment arrives in January along with your regular check.
You will see the new, higher amount on all your checks from that point forward — not just the January payment. The COLA is permanent until the next year's adjustment.
Key Takeaways
- A cost-of-living adjustment (COLA) arrives once a year in January and raises your monthly benefit amount permanently.
- You may see two payments in January: your regular monthly check plus the COLA adjustment as a separate deposit.
- Some people receive two checks in one month due to a change in their payment schedule, which Social Security calls a "deemed filing" or a change in marital status.
- Back pay from a recent decision on your claim or an appeal can also result in an extra payment in a single month.
- If you cannot explain the extra payment, contact Social Security directly to confirm what it is.
When your payment schedule shifted
Social Security assigns each person a payment date based on their birth date. If you were born on the 1st through the 10th of any month, you receive your check on the second Wednesday. If you were born on the 11th through the 20th, you get it on the third Wednesday. If you were born on the 21st or later, you get it on the fourth Wednesday.
If your birth date falls near the end of a month, your regular payment date might move into the following month in some years. When that happens, you may receive two payments in one calendar month and none in the next. This is a shift in timing, not an extra payment, but it can feel like you received something unexpected.
You can check your assigned payment date by logging into your my Social Security account at ssa.gov or by calling Social Security at 1-800-772-1213.
Back pay from a recent decision or appeal
If Social Security recently approved your claim, increased your benefit amount, or ruled in your favor on an appeal, you may receive back pay in a lump sum. This is money owed to you from an earlier month when your benefit should have started or increased.
For example, if you were approved for benefits in November but your benefit date was set to July, Social Security will pay you the four months you were owed in a single check. That check arrives separately from your regular monthly payment, so you see two deposits in one month.
Back pay can be substantial. Social Security will send you a notice explaining the amount and the reason for the payment. Keep this notice for your records.
A change in your marital status or family situation
If you recently married, divorced, or had a change in your family situation that affects your benefits, Social Security may recalculate what you are owed. If the recalculation results in a higher benefit, you may receive back pay for the months between when the change happened and when Social Security processed it.
Spousal benefits and survivor benefits can also trigger an extra payment if a family member recently became may have access to to benefits on your record. Social Security will send a notice explaining the change and the amount of any back pay.
A correction to an underpayment
Social Security sometimes discovers that it underpaid you in a previous month — for example, if a change in your earnings was not processed correctly, or if a medical review changed your benefit amount retroactively. When this happens, Social Security sends the missing amount as a separate check or deposit.
The notice you receive will explain which month or months the correction covers and why the underpayment occurred. If you do not receive a notice, contact Social Security to ask what the extra payment was for.
What to do if you are unsure about the extra payment
The safest step is to contact Social Security directly. You can call 1-800-772-1213 (TTY 1-800-325-0778) Monday through Friday, 7 a.m. to 7 p.m. your local time. Have your Social Security number ready and ask why you received an extra payment.
You can also visit your local Social Security office in person, or log into your my Social Security account online to view your payment history. The account shows every deposit and includes notes about what each payment was for.
Do not assume the payment is an error or that you need to return it. Social Security does not send money by mistake. If you received it, there is a reason — you just may need to ask what it is.
Frequently Asked Questions
Do I have to pay back an extra Social Security payment?
No. Social Security does not send payments in error. If you received the money, you are may have access to to it. The only exception is if Social Security later discovers a genuine overpayment — for example, if you were paid after you should have reported a change in your situation — but Social Security will contact you first and explain the overpayment before asking for repayment.
Will the extra payment happen again next year?
If the extra payment was a COLA, yes — you will receive a COLA adjustment every January going forward. The amount will be different each year. If the extra payment was back pay or a correction, it was a one-time event and should not repeat.
What if I received two payments but my payment date should not have changed?
Contact Social Security at 1-800-772-1213 to confirm what happened. It is possible a COLA or back pay arrived alongside your regular check, or your payment schedule may have shifted without your knowledge. Social Security can explain the deposit and confirm your current payment date.
Can I see a record of what each payment was for?
Yes. Log into your my Social Security account at ssa.gov and view your payment history. Each deposit is listed with the date and amount. Some entries include a note about what the payment covered. You can also call Social Security to ask about a specific deposit.
What if I think Social Security made a mistake?
Call 1-800-772-1213 and explain what you received and why you think it is wrong. Social Security will review your account and send you a written notice explaining the payment. If you disagree with the explanation, you can request a reconsideration or appeal, and Social Security will send you information about how to do that.