Retirement Planning for Couples & Social Security
Last updated 2026-07-08
Retirement planning gets more complex — and often more favorable — once you factor in a spouse's income, expenses, and government benefits. Here's how to build a plan that reflects your actual household, not a single-person estimate.
Combine expenses, not just savings
Many couples separately estimate "my number" and "their number" and add them together, which usually overstates what's needed — shared housing, utilities, and many recurring costs don't double just because two people share a household. Instead, build a single combined household budget for retirement, then apply the same 25-30x expense multiple (see our savings target guide) to that combined number.
Combine portfolios and withdrawal strategy
Whether you keep separate accounts or not, for planning purposes it helps to model your household's combined investable assets against your combined expenses as a single withdrawal-rate calculation, rather than each modeling their own accounts against their own spending. This avoids one partner appearing "short" while the household as a whole is well-funded.
Factor in Social Security correctly
Social Security (or a pension) is guaranteed, inflation-adjusted income that directly reduces how much your portfolio needs to fund. The key adjustment: subtract your combined expected annual Social Security/pension income from your combined annual expenses before applying your withdrawal-rate multiple to find your portfolio target.
For example, a couple spending $90,000/year with a combined $30,000/year in Social Security only needs their portfolio to cover $60,000/year — at a 4% withdrawal rate, that's a $1.5 million target instead of $2.25 million if Social Security were ignored entirely.
Timing matters too: delaying Social Security claims (up to age 70) increases the guaranteed benefit amount, which can meaningfully lower the portfolio size a couple needs — a trade-off worth modeling explicitly rather than assuming the earliest claiming age is best.
Model it together
Our retirement calculator lets you combine household income, expenses, and expected government benefits into one projection, so you can see your true combined retirement target and trajectory — rather than two separate, overly conservative estimates that don't reflect how a shared household actually spends and saves.
Key takeaway
Plan as a household, not as two individuals: combine your expenses, combine your portfolios for withdrawal-rate purposes, and subtract your guaranteed Social Security or pension income before calculating what your investments need to cover.