How One-Income Families Make Retirement Work

The most expensive decision in a one-income retirement usually isn't the savings rate. It's the day the earner files for Social Security, because that single choice sets the floor under the surviving spouse for the rest of her life. Get it right and a widow at 82 is comfortable. Get it wrong and she's fine until the first check disappears, and then she isn't.

Start there, because everything else in a single-earner household is downstream of it.

Two checks become one, and the smaller one vanishes

When one spouse dies, the household doesn't keep both Social Security benefits. The survivor keeps the larger of the two and the smaller stops. That's the rule that catches people flat.

For a one-income family this cuts both ways. Your household was never getting two big checks anyway, so the drop is smaller than it would be for a dual-earner couple. But the survivor's entire benefit is built on one work record, so that record has to be as tall as you can make it.

A spouse who never paid much into the system can still claim on the earner's record. At the spouse's full retirement age, the spousal benefit tops out at half the earner's primary insurance amount. Claim earlier and it's permanently reduced. The survivor benefit is different and more generous, up to 100 percent of what the deceased worker was actually receiving or entitled to receive.

Here's the lever. Delayed retirement credits earned by waiting past full retirement age don't just raise the earner's check. They raise the survivor's check too, for life. Waiting from 67 to 70 is one of the few moves in retirement planning that pays a guaranteed, inflation-adjusted raise to the person most likely to outlive you.

Ages, percentages and earnings limits get adjusted, so confirm the current numbers at SSA.gov rather than trusting a number you read anywhere, including here.

Fund the spouse's own account while you're still earning

A non-working spouse can have an IRA funded out of the earner's income, as long as you file jointly and the earner has enough compensation to cover both contributions. People call it a spousal IRA. It isn't a special account type. It's a regular IRA in the spouse's name, with her own beneficiary designations and her own control.

Two reasons to bother, beyond the tax break.

First, it doubles the household's tax-advantaged space. If you're a one-income family, you're already fighting for every dollar of shelter you can get. Second, it puts assets in the name of the person who statistically lives longer.

Contribution limits and the income phase-outs for deductibility change most years. IRS.gov publishes them. Check before you write the check.

While you're at it, log in to the "my Social Security" account for both spouses. If your wife worked eight years before the kids came, those quarters are on the record somewhere, and it's worth knowing whether her own benefit will ever exceed the spousal amount. Forty quarters is the threshold for a benefit on her own record.

The pension election is a one-time, permanent decision

If you have a traditional pension, at retirement you'll be handed a form asking whether you want the single-life payout or a joint-and-survivor payout. The single-life number is bigger. That's the whole trap.

Illustrative example, round numbers only: a pension offers $3,000 a month single-life, or $2,550 a month with a 100 percent survivor benefit. The single-life option hands you $450 more every month for as long as you live, and hands your wife nothing the day you don't. On a one-income household where the pension is a third of the retirement income, that's not a preference. That's the difference between her staying in the house and not.

Some couples run the numbers and take the higher single-life payout with a life insurance policy covering the gap. That can work. It can also fall apart if the policy lapses, if the premium gets unaffordable, or if you're no longer insurable at a sane price. Look hard at it with someone who has no product to sell you.

Most pension elections are irrevocable once payments start. Read the form twice, and make sure your spouse reads it too.

Medicare arrives per person, not per household

Medicare eligibility starts at 65 for each of you individually. There's no family plan. If the earner retires at 63 with a 58-year-old spouse, you're buying coverage for two people for two years, and then for one person for five more.

That gap is the single most common reason a one-income retirement gets delayed. Budget for it honestly. Marketplace coverage, COBRA for a limited stretch, or a part-time job with benefits are the usual options, and the premium subsidies on the marketplace are income-tested, which interacts with how much you pull from your IRA that year.

Late enrollment penalties for Part B are permanent, and the rules about when you must enroll depend on whether you have qualifying coverage from active employment. Medicare.gov spells out the timing. Don't guess on this one.

The quiet tax problem nobody mentions

Here's the part that catches single-earner families years after the fact. While you're both alive, you file jointly, with the wider brackets and the bigger standard deduction. When one spouse dies, the survivor eventually files single. The income doesn't drop nearly as much as the brackets do, and required minimum distributions keep coming out of the traditional IRA on schedule.

The same effect can push the survivor into a higher Medicare premium tier through the income-related surcharge, which uses a tax return from two years prior.

The window between retiring and starting Social Security and RMDs is often the lowest-income stretch of your life. That's when partial Roth conversions get looked at, deliberately, a slice at a time, with an eye on what bracket you're filling. This is real tax work with real math behind it, and it's exactly the conversation to have with a CPA before December, not in April.

Protect the earner, then protect the home

One income means one point of failure. Long-term disability coverage while you're still working matters more in a single-earner house than a dual-earner one, and employer group coverage often replaces only part of your pay, taxable if the premiums were paid pre-tax. Term life should run at least until the mortgage is gone and the youngest kid is out.

Keep a bigger cash reserve than the usual advice. Six months is a common rule of thumb for two earners. One earner, one salary, one health event, and the arithmetic argues for more.

Where you land changes the numbers

States tax retirement income very differently. Some exempt Social Security entirely, some tax pension income and not IRA withdrawals, some have homestead or senior property tax freezes that only apply if you've lived there a set number of years. Property tax is often the line item that decides a fixed-income budget, not the income tax rate.

Don't move for taxes alone. Moving three states away from your grandkids to save on a tax bill is a trade most people regret by the second Christmas. The lived side of that decision belongs over in BRO Seniors, but the arithmetic side belongs here: compare total cost of living, insurance, property tax and travel back home, then decide.

Before you act on any of it, sit down with a fee-only fiduciary adviser, a CPA and an estate attorney. Fee-only matters. You want the person across the table paid for advice, not for what you buy afterward.

And put your wife in that meeting. She's the one most likely to be living with the plan longest.