Social Security decision guide

Social Security Spousal Benefit Calculator

Estimate how your own retirement benefit and a possible spousal top-up may work together. Then see the rules that could change the answer before you file.

Use full-retirement-age amountsFind both estimates on each person’s Social Security Statement. Do not enter the amount someone receives after claiming early or delaying.
Step 1

Enter the couple’s estimates

Private in your browser
This determines your full retirement age.
The choices end at your full retirement age because the spousal portion does not grow after that point.
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Basic eligibility check
Your estimated monthly amount—

Enter the benefit amounts from both Social Security Statements.

The calculation in plain English

Social Security does not add half of your spouse’s benefit to yours

First, Social Security pays the retirement benefit earned on your own record. Next, it checks whether a spousal amount would raise your payment. If it would, Social Security adds only the difference, often called the spousal excess or top-up.

  1. 1
    Find the maximum spousal level

    At your full retirement age, it can be as much as 50% of your spouse’s primary insurance amount.

  2. 2
    Subtract your own full benefit

    The difference is the possible spousal top-up. If there is no difference, you receive only your own retirement benefit.

  3. 3
    Apply early-claiming reductions separately

    Your own benefit and the spousal top-up use different early-claiming reduction formulas.

Before you act

Five questions the calculator cannot decide for you

01

Has the higher earner filed?

A current spouse generally cannot receive a spousal benefit until the worker is receiving retirement or disability benefits.

02

Are you filing before FRA?

Starting early can permanently reduce both your own retirement amount and the spousal portion.

03

Do you qualify for both?

Deemed filing generally means an application for one is treated as an application for both. Social Security pays the higher combined amount.

04

Are you caring for a child?

Different age and reduction rules may apply when caring for the worker’s qualifying child. Ask SSA for a personalized calculation.

05

Is this really a survivor question?

Survivor benefits follow different rules and may be larger. Do not use this calculator after a spouse’s death.

A quick example

Why the “50% rule” is often misunderstood

Suppose one spouse has a $3,000 full-retirement-age benefit and the other has a $900 benefit. Half of $3,000 is $1,500. At full retirement age, Social Security would pay the $900 own benefit plus a $600 spousal top-up, for a $1,500 combined payment. It would not pay $900 plus another $1,500.

Continue planning

Related Social Security guides

Start hereSocial Security hubClaiming, working, taxes and family benefits → Understand your numberHow Social Security calculates your benefitSee how your earnings record becomes a payment → Working while claimingShould you claim and keep working?Understand the earnings test → Different rulesAfter the death of a spouseUse the survivor checklist →

Educational estimate: This tool uses the standard federal early-claiming formulas and rounds to whole dollars. SSA may use different rounding, eligibility facts and family-maximum rules. It does not calculate child-in-care, survivor, government-pension, disability or divorced-spouse benefits. Confirm any filing decision with the Social Security Administration.

Educational purposes only — read the Financial & Educational Disclaimer