Social Security says it will automatically withhold 50 percent of a person’s monthly benefit to collect a new overpayment if the money is not repaid within 30 days of the notice date. The agency describes half of the check as the standard recovery rate for Title II benefits, the retirement, survivor and disability payments most older Americans receive.

For people on Supplemental Security Income, the rate is lower. The agency’s overpayment page puts it at 10 percent of the SSI payment each month until the debt is paid off.

How much of a check can Social Security take?

The agency’s overpayment page says that if a person does not repay within 30 days of the notice date, Social Security will withhold 50 percent of the benefit, or 10 percent of an SSI payment, each month until the overpayment is repaid. The 50 percent figure is the default. It is where collection starts, not a ceiling set by law, and it can be changed if the agency agrees to a different rate.

An overpayment is money the agency paid out that it later decides it should not have. It can come from unreported income, a change in living arrangements or a plain processing error. The notice lists the amount owed and the options for responding.

Which overpayments get the 50 percent rate?

Social Security’s operations reference, updated August 28, 2025, ties the half-benefit default to Title II overpayments with notices issued on or after April 25, 2025. For SSI, it says the overpayment recovery rate remains 10 percent.

A notice dated before April 25, 2025 is treated differently. The same reference says older overpayments keep the lower 10 percent withholding rate when recovery resumes, unless the person incurs a new overpayment. Someone with an old debt and a new one can therefore face two different rates, depending on the notice dates.

Anyone holding a notice dated on or after April 25, 2025 for a retirement, survivor or disability benefit is in the 50 percent group. The first question is the date printed on the letter, because the 30 days run from that date.

What changed this year: Social Security and Medicare change every year, and nobody sends you a memo. The Retirement Money Brief breaks down what changed and what to do.

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What happens during the first 30 days?

The 30 days are a waiting period before collection begins, not a deadline to appeal. Social Security’s overpayment page says that anyone who asks for a waiver or files an appeal within 30 days will not have the money collected until the agency decides the request. Asking after withholding has started is still possible, but the checks have already been reduced by then.

A waiver is a request to be excused from repaying. The agency says people can ask for one if they cannot afford to repay and believe the error was not their fault or that repayment is unfair. An appeal is for people who disagree that the overpayment happened or with its size, and the page says to appeal only in that case.

There is a third route that does not dispute the debt. The operations reference lists Form SSA-634, the request for a change in the overpayment recovery rate, and notes that a lower rate may be negotiated separately. A person who agrees they owe the money but cannot live on half a check can ask for smaller deductions instead.

What does half a check look like in a household budget?

A retiree whose monthly benefit is $2,000 would see $1,000 withheld at the default rate, and the deductions would continue every month until the balance reaches zero. The same person on the older 10 percent rate would see $200 withheld. The gap is the reason the notice date and the response window matter so much.

People who rely on a Social Security deposit to cover rent, medicine and utilities are the group most exposed to a sudden cut of this size. Social Security publishes its repayment options on the resolve-an-overpayment page, where a person can repay, request a waiver or file an appeal online.

The agency has not published a separate date by which a lower rate must be requested. In practice, the 30 days after the notice date are the point at which the first reduced check can be set in motion, so the letter’s date is the number to write down first.

Holding an overpayment notice dated after April 25, 2025?

A notice that sits in a drawer for 30 days can turn into a monthly deduction of half the benefit, with the first reduced check arriving before anyone has asked for a waiver, an appeal or a lower rate.

The Social Security Check Protection Kit lays out the three SSA forms that stop or pause collection (SSA-561, SSA-632, SSA-634) and an overpayment response worksheet, and Part 5 is a full playbook for overpayments, so the steps for one notice are in one place.

Get the overpayment response worksheet and the three collection-pause forms in the kit →

More Financial Reading

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• 21 Ways Retirees Can Raise $1,000 Fast Without a Job

This article was produced with AI assistance and edited for accuracy against the sources linked above.