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How Do Social Security Spousal Benefits Work? What Most Couples Get Wrong

2026-03-208 min read

Spousal benefits can add hundreds of dollars per month to your household income, but the rules changed in 2015. Here is what actually applies now.

What Changed with the 2015 Bipartisan Budget Act?

Before 2016, a spouse born before January 2, 1954 could file a 'restricted application' — claiming only spousal benefits while letting their own benefit grow with Delayed Retirement Credits. File-and-suspend also allowed one spouse to file and immediately suspend, triggering the other's spousal benefit.

Both strategies were eliminated for anyone born January 2, 1954 or later. Now, 'deemed filing' applies: when you file for any Social Security benefit, you're automatically deemed to file for all benefits you're eligible for, and you receive the higher of the two.

This simplifies the decision but eliminates some optimization. The remaining strategy: coordinate claiming ages to maximize lifetime household income, especially considering survivor benefits.

How Are Spousal Benefits Calculated?

The spousal benefit equals 50% of the higher earner's PIA (the benefit amount at Full Retirement Age) minus your own PIA. If your own benefit is higher than 50% of your spouse's PIA, you receive your own benefit and the spousal benefit is zero.

Important: spousal benefits do NOT earn Delayed Retirement Credits. The maximum spousal benefit is 50% of the worker's PIA, and that's what you get at FRA. Claiming before FRA reduces it; waiting past FRA doesn't increase it.

However, the worker's own benefit DOES earn DRCs. If the higher earner delays to 70, their benefit increases by 24% (8% per year for 3 years past FRA of 67). This increased benefit becomes the survivor benefit — which is why delaying the higher earner's claim is often the most impactful strategy for couples.

Why Do Survivor Benefits Often Drive the Claiming Decision?

The survivor benefit equals 100% of the deceased spouse's benefit — including any Delayed Retirement Credits they earned. For a couple where one spouse has a significantly higher PIA, this creates a powerful incentive to delay the higher benefit.

Example from the analysis: Dave's PIA is $2,800, Linda's is $1,650. If Dave claims at 67 (FRA), Linda's survivor benefit would be $2,800/month. If Dave delays to 70, his benefit is $3,472/month — and Linda's survivor benefit becomes $3,472/month. That's $672/month more ($8,064/year) for every year of Linda's widowhood.

Over a 10-year survivorship, that $672/month difference is $80,640. This often outweighs the cost of Dave delaying (forgoing 3 years of benefits totaling about $100,800) because the survivor benefit increase is permanent and inflation-adjusted.

Want to Model Your Couple's Social Security Strategy?

The analysis at myaifinancialplan.com optimizes claiming strategies for both spouses simultaneously — modeling spousal benefits, survivor benefits, and the interaction with your other income sources across 10,000 scenarios. Start free at myaifinancialplan.com.

Terms in This Article

Browse Full Glossary →
Delayed Retirement CreditsFRA (Full Retirement Age)InflationPIA (Primary Insurance Amount)Retirement AgeSpousal BenefitSurvivor Benefit

This article is for educational and informational purposes only. It does not constitute investment advice, financial planning advice, or a recommendation to buy or sell any security. AI Financial Plan is not a registered investment adviser, broker-dealer, or financial planner. You should consult with a qualified professional before making financial decisions. Past performance and projected outcomes are not guarantees of future results.

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