Budgeting in retirement

A working-age budget answers one question: does spending fit inside the paycheck? A retirement budget has to answer two, because you also build the paycheck yourself, assembling it from Social Security, savings withdrawals, and maybe a pension or annuity. Get the spending side wrong and the withdrawal plan built on top of it wobbles too. A retirement income map places those sources, annual costs, transition gaps, deadlines, and survivor changes on the same household timeline.

The good news is that decades of data show retirees are not guessing in the dark. Spending follows recognizable patterns as people age, health costs are large but estimable, and the things that blow up retirement budgets tend to come from a short, predictable list. A budget that accounts for those patterns beats any single rule of thumb.

How spending actually changes with age#

New retirees often assume their spending will stay level, rising only with inflation, for thirty years. The research says otherwise. Following 591 retired households across nearly a decade of survey data, David Blanchett found that inflation-adjusted spending declines slowly but steadily through the 60s and 70s, averaging roughly 1 percent a year in real terms, before higher medical costs push it back up late in life ⁸. Plotted on a chart, the curve dips in the middle and lifts at both ends, which is why his 2014 Journal of Financial Planning paper called it the "retirement spending smile," a name that stuck ¹⁸. In his model, a household spending $100,000 a year at 65 sees real spending bottom out around $74,000 at age 84 before drifting up again ⁹.

Financial planners often translate the same curve into three loose phases: active early years heavy on travel and hobbies, quieter middle years closer to home, and later years when health care claims a growing share. The dollars shift between categories even when the total falls.

Government data shows the same downward slope. In 2024, households headed by someone 65 or older spent an average of $61,432 a year, well below the all-household average, and spending for those 75 and older runs lower still than for the 65-74 group ². For your own plan, the practical lesson is modest: budgeting generous travel money at 67 is realistic, but assuming today's restaurant and airfare budget continues at 87 probably overstates what you will spend on everything except health care.

Sources for this section: [1] [2] [8] [9]

Replacement rates and other rules of thumb#

The oldest planning shortcut says you need about 70 to 80 percent of your pre-retirement income to keep your standard of living; Social Security's benefits guide uses that range ⁴, and AARP puts it at 70 to 85 percent ³. The logic: retirees stop paying payroll taxes on wages, stop saving for retirement, often finish paying a mortgage, and drop commuting and work costs. Social Security supplies a chunk of the target; for a medium earner starting benefits at full retirement age in 2026, it replaces about 43 percent of pre-retirement earnings, less for higher earners ⁴.

Treat the percentage as a starting estimate, not a verdict. People who saved heavily while working may live comfortably on 60 percent, since much of their old "income" was really savings. People who retire with a mortgage, plan expensive travel, or face private health premiums before Medicare at 65 can need 90 percent or more. A written budget built from your own bills replaces the rule of thumb the moment you draft one.

Sources for this section: [3] [4]

Sort your costs into fixed and flexible#

The most useful single step in retirement budgeting is splitting spending into two buckets.

The split matters because the two buckets can be funded differently. Many planners suggest matching fixed essentials to guaranteed income, meaning Social Security plus any pension or annuity payments, so that a market crash never threatens the electric bill. Flexible extras then ride on portfolio withdrawals, which can flex with returns under a guardrails approach. Retirement withdrawal strategies covers how those systems work. Remember to treat income taxes as a real budget line as well; withholding no longer happens automatically, as taxes in retirement explains.

Health care deserves its own category#

Health care is the one major cost that reliably rises as you age, and it is bigger than most people guess. Health care took 12.7 percent of spending in households 65 and older in 2024, versus 7.9 percent across all households, and the share climbs further with age ². Fidelity's annual estimate, the most widely cited benchmark, put the figure at $172,500 for a single 65-year-old retiring in 2025, covering Medicare premiums, cost sharing, and drug costs over a full retirement ⁵. The estimate is per person, so a couple counts it twice.

Spread over 25 or so years, that is several hundred dollars per person per month: the Part B premium, a Medigap or Medicare Advantage plan, a drug plan, and the dental, vision, and hearing costs Medicare mostly ignores. The standard Part B premium alone is $202.90 a month in 2026, up $17.90 from 2025, with a $283 annual deductible on top ¹⁰. Budgeting health care as its own line, growing faster than everything else, is more honest than burying it in "miscellaneous."

Note: The Fidelity estimate excludes long-term care, which is the single largest financial risk most retirees face. A budget can absorb premiums or a home aide for a while, but extended care needs a separate plan, whether insurance, earmarked savings, or family help. See long-term care insurance.

Sources for this section: [2] [5] [10]

Inflation never retires#

Social Security is inflation-adjusted; the 2026 cost-of-living adjustment raised benefits 2.8 percent, about $56 a month for the average retirement benefit ⁶. Most other retirement income is not. A fixed pension or annuity payment buys less every year, and at 3 percent inflation, prices double in about 24 years, roughly the length of a typical retirement. The 2021-2023 inflation surge was a live demonstration: retirees with mostly fixed income lost ground that COLA-adjusted benefits partly restored.

Two budgeting habits blunt the damage. First, rebuild the budget annually with real premium notices, tax bills, and insurance renewals instead of adding a flat percentage. Second, let the smile research temper panic: because discretionary spending tends to fall with age, many households find inflation in the fun categories partially offsets itself, while health and insurance lines need genuine annual increases.

Sources for this section: [6]

The usual budget busters#

When retirement budgets fail, the cause is rarely groceries. In the Employee Benefit Research Institute's 2024 Spending in Retirement study, 31 percent of retirees said their spending was higher than they could afford, up from 17 percent in 2020; one in three had hit unexpected spending needs since retiring, and the share holding three months of emergency savings had fallen to 59 percent, from 69 percent in 2022 ¹¹. The trouble usually starts with one of these:

Housing and home repairs. Housing is the largest spending category for older households ², and an aging house sheds four- and five-figure bills: roofs, furnaces, foundations. Homeowners without a repair fund end up borrowing or raiding investments at bad times. Setting aside a monthly amount for future repairs, and pricing the home modifications that support aging in place before they are urgent, turns shocks into line items. For some households the honest fix is structural: downsizing to a cheaper, simpler home.

Adult children. In a Pew Research Center survey, 59 percent of parents of young adults said they had helped their children financially in the previous year ⁷. Help that fits a budget line is generosity; help that quietly replaces retirement savings is a loan against your own later care. Deciding on a number in advance makes the conversation easier; family money boundaries covers the conversation itself.

Everything Medicare does not cover. Dental implants, hearing aids, and glasses arrive irregularly and can each run into the thousands. So can veterinary bills.

Fraud. A single successful scam can undo years of careful budgeting, and scammers target retirees specifically. Scams that target seniors covers the warning signs.

Sources for this section: [2] [7] [11]

Methods and tools that fit retirement#

Any budgeting method works if it survives contact with your bank statement, but three suit retirees particularly well.

The retirement paycheck. Move a fixed amount each month from savings into checking and live only on that. It recreates the discipline of a salary, makes overspending visible within weeks, and pairs naturally with any withdrawal strategy.

The annual worksheet. Once a year, list every expense, including the lumpy ones (insurance premiums, property tax, gifts, travel, repairs), divide by twelve, and compare against expected income. Retirees are exposed to lumpy bills in a way salaried workers with benefits are not, so the worksheet matters more after 65 than it did before. A plain spreadsheet works; so do the budgeting tools inside most bank and brokerage apps, which categorize spending automatically.

The trial run. Before retiring, track actual spending for six to twelve months, then practice living on the planned retirement income while still employed. A dry run exposes an unrealistic budget while the fix is still a bigger savings rate rather than a smaller life.

If the numbers refuse to balance, the levers are the same for everyone: trim the flexible bucket, harvest the easy wins like senior discounts on the things you already buy, reduce fixed costs through housing, or add income, since even modest part-time work changes the arithmetic. Working in retirement covers that last option.

RetiredWiki. (2026, July 18). Budgeting in retirement. https://retiredwiki.com/article/budgeting-in-retirement