Social Security Withdrawal & Repayment Calculator
Thinking about undoing your Social Security retirement claim? Use this calculator to estimate the repayment associated with Form SSA-521, compare restarting benefits at full retirement age or age 70, and explore important filing dates. Results are educational estimates; Social Security determines your final repayment amount and eligibility.
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Social Security Withdrawal and Repayment FAQs
Can I cancel Social Security retirement benefits after I start receiving them?
Yes, if you meet Social Security’s withdrawal requirements, including the time limit and repayment of benefits paid on the application; retirement application withdrawal is generally a one-time option (SSA withdrawal rules). An approved withdrawal removes the legal effect of your original application, and you must apply again if you want benefits later (Form SSA-521).
What is Form SSA-521?
Form SSA-521 is Social Security’s “Request for Withdrawal of Application,” used to ask SSA to withdraw a previously filed benefits application (Form SSA-521). If benefits have been awarded, the form requires repayment of benefits paid on the application and consent from other people whose benefits would be affected (Form SSA-521).
What is the 12-month deadline for withdrawing my retirement application?
SSA’s processing rules count the withdrawal window from your first month of entitlement, not the date of your first bank deposit, and end it on the last day of the 12th month after that entitlement month (SSA deadline-counting rules). For example, SSA explains that an April entitlement month produces a deadline at the end of April the following year (SSA deadline example). Confirm your entitlement month and filing deadline with SSA before relying on a calculator date.
How much Social Security must I repay?
Repayment generally includes benefits paid to you and your family on the application, plus amounts withheld for Medicare premiums, taxes and garnishments, so it can exceed the money deposited into your bank account (SSA repayment requirements). SSA determines the final amount and sends a repayment notice explaining its calculation (SSA repayment procedures).
In this calculator, choose Net deposits if your total excludes deductions, or Gross if your total already includes them. This avoids counting the same Medicare premiums or tax withholding twice.
Can I keep Medicare if I withdraw my Social Security application?
If you are age 65 or older, SSA allows you to withdraw retirement cash benefits while keeping Medicare Part A; in that case, you do not repay Part A medical benefits simply because you withdrew the retirement claim (SSA Medicare withdrawal guidance). Medicare premiums withheld from your Social Security payments remain part of the retirement-benefit repayment calculation, which is separate from repayment of medical claims (SSA repayment requirements). If you also withdraw Part A coverage, SSA must determine the Medicare payments that need to be repaid (SSA Medicare withdrawal guidance).
Can I change my mind after SSA approves the withdrawal?
Yes, but Form SSA-521 says you cannot cancel the withdrawal after 60 days from the mailing of the approval notice (Form SSA-521). This is a separate deadline from the initial withdrawal window, so enter the actual notice mailing date in the calculator rather than relying on its estimated approval date.
Will restarting Social Security at age 70 give me more money?
Delaying retirement benefits beyond full retirement age earns delayed retirement credits until age 70; for people born in 1943 or later, the credit is 8% per year, or two-thirds of 1% per month (SSA delayed retirement credits). A larger monthly payment is not a guarantee of a larger lifetime total. Use this calculator to compare the illustrated repayment, time without benefits, and cumulative benefits under your chosen assumptions, not as a guarantee of future results.
What is the difference between withdrawing and suspending Social Security?
Withdrawal undoes the original application if approved and requires repayment of benefits paid on it (Form SSA-521). Voluntary suspension is available from full retirement age until age 70 and pauses future payments while you earn delayed retirement credits; payments automatically resume at 70 unless you restart sooner (SSA suspension rules). Suspension can also pause benefits paid to family members on your record, although an eligible divorced spouse can continue receiving benefits (SSA family-benefit rules).
Does this calculator provide my official repayment amount?
No. It calculates an estimate from the amounts and dates you enter; SSA’s repayment notice establishes the final amount required for withdrawal approval (SSA repayment procedures). The lifetime comparison is an individual gross-benefit illustration, not a full household analysis of taxes, spousal or survivor benefits, investment returns, or earnings-test effects.
Talk through your Social Security decision
Repaying benefits is only one part of the decision. Consider how a withdrawal would fit with your cash reserves, retirement income, Medicare coverage, and tax planning.

