How can married couples plan retirement together?

Why a household projection matters

Claiming early can add income sooner and reduce withdrawals from investments. Waiting can produce a larger later worker benefit and may also increase the benefit retained by a surviving spouse. But waiting requires the household to fund more spending before benefits begin. Taxes, Roth conversions, Medicare premiums, age differences, pensions, and the portfolio all influence that tradeoff.

The useful question is not simply, “Which spouse gets the largest monthly benefit?” It is, “Does the combined strategy support both spouses while they are living and still leave an acceptable plan for the survivor?”

Choose the primary person deliberately

The primary person supplies the projection's Start Age, Horizon Age, Ending Age, claim-age scenarios, IRA timeline, RMD schedule, and Roth conversion schedule. The married model assumes this person outlives the spouse. For the most meaningful survivor illustration, choose as primary the person whose longer lifetime you want the projection to follow—often, but not always, the younger spouse.

This choice does not determine whose Social Security benefit is larger. The model considers both entered worker benefits when estimating the household and survivor Social Security amounts.

Enter the spouse information

1. Select Married Couple. Under Planner Inputs, change Plan For from Single Person to Married Couple.
2. Enter the spouse's birth date. This determines spouse age, full retirement age, Medicare timing, and the calendar year of the survivor transition.
3. Choose one spouse claim age. This age remains fixed while the table compares different claim ages for the primary person.
4. Enter the gross monthly benefit at that claim age. Use the spouse's worker benefit before tax withholding or Medicare deductions.
5. Enter the benefit at full retirement age. The model uses this amount to estimate whether either spouse receives an auxiliary spousal top-up.
6. Set the spouse life-expectancy age. This is a planning assumption for the transition to one survivor, not a prediction of death.
7. Estimate survivor spending. Enter the percentage of regular household spending expected to remain after the spouse's death.

Obtain each person's estimates from a personal my Social Security account. Keep both spouses' amounts on the same Current Dollar or Claim-Year Dollar basis selected in the planner. Do not enter a net bank deposit after Medicare or tax withholding.

How the planner estimates Social Security

The primary person's worker benefit comes from the claim-age values entered under Social Security. The spouse's worker benefit comes from the fixed spouse claim-age amount. Both benefits receive the same modeled Social Security COLAs after they begin.

After both worker benefits have started, the planner compares each person's estimated full-retirement-age amount with one-half of the other person's amount. If an auxiliary amount is available, it adds only the estimated top-up and applies the standard early-claim reduction to that top-up. Delayed retirement credits on the higher earner's worker benefit do not increase the base spouse benefit. Actual eligibility and payment can be affected by deemed filing, exact filing months, family maximums, work, disability, government pensions, children, divorce, and other rules that the planner does not calculate.

SSA explains that a worker generally must be receiving benefits before a current spouse can receive a benefit on that record, and people eligible for both retirement and spouse benefits generally receive a combined amount equal to the higher benefit—not both full amounts. See SSA's filing rules.

What changes in the survivor year

In the complete calendar year when the spouse reaches the entered life-expectancy age, the model assumes the primary person becomes the survivor. It stops the spouse worker and spousal payments, then retains the larger of the two projected worker benefits as total survivor Social Security. It does not add both benefits together. This is directionally consistent with SSA's explanation that a person entitled to a larger survivor amount receives the higher amount rather than both, but the app does not perform a complete survivor claim calculation.

In that same year, regular spending changes to the entered survivor percentage, the tax filing status changes to Single, Single IRMAA thresholds apply, and the spouse's modeled Medicare and healthcare costs stop. One-time expenses and debt payments retain their entered timing rather than being reduced automatically.

Actual survivor benefits depend on age at claim, the deceased worker's record and claiming history, and other eligibility rules. Review the SSA survivor-benefit information before making a claiming decision.

Why survivor spending usually does not fall by half

Some expenses disappear when a spouse dies, but many remain: housing, property taxes, utilities, home maintenance, transportation, insurance, and much of healthcare. A percentage such as 70%–80% can be a useful starting range for exploration, but it is not a rule. Build the survivor amount from the household's actual essential and discretionary costs.

Test more than one percentage. A result that works only when survivor spending falls sharply may be signaling that the surviving spouse has little flexibility.

What taxes and Medicare include

• The selected Married Filing Jointly or Married Filing Separately configuration applies while both spouses are living.
• The model switches to Single for the full survivor-transition year; it does not model the special filing rules that may apply in the actual year of death.
• Age-based federal standard-deduction additions can apply to each modeled spouse age 65 or older.
• Medicare premiums, custom healthcare amounts, and IRMAA surcharges apply for each modeled Medicare-eligible person while both are living.
• The survivor uses one set of modeled Medicare costs and Single IRMAA thresholds.

These are annual planning estimates, not a joint or separate tax return. State-specific spouse exclusions, credits, community-property treatment, year-of-death rules, and every Married Filing Separately rule are not calculated.

How to read the couple's results

• Scenario Summary: Primary Claim Age identifies the changing primary-person choice. First-year and cumulative Social Security are household totals.
• Year-by-Year Details: Review Household Status, Filing Status, Primary SS, Spouse SS, Spousal Benefit, Survivor Benefit, Medicare/Health, taxes, and withdrawals around each transition.
• Retirement Risk Analysis: Test promising strategies across the same simulated futures and review success through both the horizon and ending ages.
• Downloadable report: Preserve the spouse assumptions, household results, and limitations used for the comparison.

A practical comparison process

1. Load the Married Couple sample plan or enter both spouses' actual information.
2. Review primary claim-age rows while holding the spouse claim age fixed.
3. Change the spouse claim age and repeat the comparison if that decision is still open.
4. Compare household spending coverage before and after both Social Security benefits begin.
5. Inspect the survivor-transition year for income loss, lower spending, taxes, and Medicare changes.
6. Test earlier and later spouse life-expectancy ages and more than one survivor-spending percentage.
7. Run risk analysis for the strongest combinations using the same economic assumptions.
8. Confirm actual benefit choices with SSA and tax effects with qualified professionals before acting.

Related guides

• When should you claim Social Security?
• How much can you spend in retirement?
• How retirement income can affect Medicare IRMAA
• Monthly pension or lump-sum IRA rollover?
• How to compare retirement scenarios consistently