They Downsized and Freed $300,000 in Home Equity. It Let Them Delay Social Security to 70, and It Paid Off.
Selling the family home handed one couple a financial lever most retirees overlook, and the way they used it reshaped their income for the rest of their lives. The math behind their timing decision is simpler than you might expect,…
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A Familiar Kitchen-Table Decision
A couple in their late 60s sells the house where they raised their kids — stairs have become a nuisance, property taxes keep climbing, and two bedrooms sit empty — and buys something smaller. They walk away with roughly $300,000 in cash after closing. The question is whether to turn on Social Security right away or use that freed equity to wait.
This is not a hypothetical. Baby boomers accounted for 42% of buyers and 55% of all home sellers, the highest of any other age group, according to NAR’s 2026 report. That dominance reflects decades of accumulated equity: boomers typically lived in their homes for over 15 years, giving them time to build up equity used for a future home purchase. Over half of all younger boomers (ages 61 to 70) and older boomers (ages 71 to 79) used proceeds from a primary home sale as the down payment on their next home. One retiree on a personal finance forum described the logic plainly: they sold the family home, banked the difference, and treated it as a five-year paycheck so the higher earner could hold off on filing until 70. That is the strategy in its simplest form.
The One Lever That Drives the Outcome
The single most consequential Social Security variable is the delayed retirement credit on the higher earner’s benefit. For anyone with a full retirement age (FRA) of 67, Social Security adds roughly 8% for each year of waiting past that age, stopping at 70. For someone with a full retirement age of 67, waiting until 70 increases the retirement benefit to 124% of the FRA amount. Filing at 62 instead cuts the check by up to 30% for life.
If the higher earner would collect $2,500 a month at 67, waiting until 70 pushes that to roughly $3,100, adding about $600 a month, more than $7,000 a year, permanently. When the higher earner dies first, the surviving spouse steps up to that full benefit amount, delayed credits included. Delaying to 70 effectively buys longevity insurance on two lives.
Layer in cost-of-living adjustments (COLAs) and the case strengthens further. Based on the increase in the Consumer Price Index from the third quarter of 2024 through the third quarter of 2025, Social Security beneficiaries will receive a 2.8% COLA for 2026 — up slightly from the 2.5% COLA in 2025. Every future bump applies to whatever base benefit a retiree has locked in. A bigger base means bigger COLA dollars, compounding over time. That higher benefit also serves as the basis for future cost-of-living adjustments, which makes the gap between an early claim and a delayed one wider every year. Looking further ahead, early forecasts as of mid-2026 suggest a 2027 COLA somewhere between 3.9% and 4.2%, though the official figure won’t be set until October. The SSA’s delayed retirement credits page lays out the mechanics.
Why the Home Equity Bridge Works
The freed $300,000 does three things simultaneously. It replaces the Social Security check the couple is choosing not to take. It keeps them from selling stocks or bonds into a weak market to fund living costs, protecting their sequence of returns. And it lets them manage tax brackets, since drawing from a cash pile carries no income tax the way an IRA withdrawal does.
The tax side of the sale itself also deserves attention. Under IRC Section 121, a married couple filing jointly can exclude up to $500,000 of gain on the sale of a primary residence they have owned and lived in for at least two of the prior five years (singles get $250,000). Gain above that threshold is taxable, and a spike in modified adjusted gross income (MAGI) can trigger higher Medicare Part B and Part D premiums through IRMAA two years later. For context, the standard Medicare Part B premium sits at $202.90 a month in 2026, up $17.90 from the prior year, and an IRMAA surcharge can push that figure substantially higher depending on the income bracket. For long-tenured homeowners in high-appreciation markets, pricing out the tax exposure before signing is essential. The Case-Shiller national index reached a record high in early 2026 and has held near that level through spring, leaving plenty of longtime owners sitting on gains that could brush against the exclusion ceiling.
How the Rest of the Picture Fits
Average annual expenditures for households with a reference person 65 or older came in at $61,432 in 2024, according to BLS Consumer Expenditure Survey data. A smaller home typically means lower property taxes, insurance, and utilities, so the downsize itself trims the amount the bridge has to cover each year.
Coordination between spouses matters more than precise optimization. The lower earner can file earlier without much damage to survivor income, because the survivor benefit tracks the higher earner’s record, not the lower earner’s filing age. One nuance worth knowing: a spousal benefit is calculated off the higher earner’s FRA amount, not the age-70 amount, so waiting past 67 does not enlarge what a spouse can claim on your record during your lifetime.
What to Sit With Before Deciding
Two risk factors deserve careful thought. Claiming the higher earner’s benefit early locks in a smaller check for both spouses’ lifetimes, with no way to undo it later. Running out of bridge money at 68 and being forced to file anyway defeats the entire plan, so stress-testing the cash flow against a conservative scenario matters as much as running the best case.
On timing, the break-even point for delaying from 62 to 70 typically falls between ages 78 and 82, meaning a retiree who lives past that range comes out ahead by waiting. Health and family longevity history are therefore central inputs, not afterthoughts.
Every household’s mix of equity, health, and other income sources is different. Small details, such as an unusually large capital gain on the sale, a pension with a survivor option, or a state that taxes Social Security benefits, can shift the math meaningfully. Working through the numbers with a fiduciary planner or a CPA before the closing date is time well spent.
Editor’s note: This article was updated to include the confirmed 2026 Social Security COLA of 2.8% (up from 2025’s 2.5%), early 2027 COLA projections of 3.9% to 4.2%, the 2026 Medicare Part B standard premium of $202.90 per month, the NAR finding that over half of boomers in both age groups used prior home proceeds for their next purchase, and the typical break-even age range of 78 to 82 for delaying Social Security from 62 to 70.
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Gerelyn Terzo is the author of dividend investing handbook "Dividend Investing Strategies: How to Have Your Cake & Eat It Too." A veteran financial journalist, she covers agri-finance for outlets like Global AgInvesting and the broader stock market and personal finance for 24/7 Wall Street. She began at CNBC and later helped launch Fox Business in New York. Gerelyn currently resides in Woodland Park, Colorado and dabbles in nature photography as a hobby.
