“How much do I need to retire?” sounds like a question about an account balance, but a plan starts with two others: what will you spend, and which income sources will pay for it?
Two households with the same retirement savings can have very different prospects. One may have a pension and a paid-off home. Another may need savings to cover rent, debt payments, and a much larger share of everyday costs.
Work from the monthly gap before deciding whether a headline savings number is enough.
Build the retirement budget you expect to live with
Start with current spending, then identify what would change after work stops. Commuting and some work costs may fall, while travel, healthcare, support for relatives, and home maintenance may not.
Keep the mortgage payment in the budget if it will still exist in retirement. A paid-off house also retains taxes, insurance, utilities, and upkeep.
The CFPB’s retirement planning resources treat income, debt, and assets as connected decisions. Listing them together can show that a debt payoff or housing choice changes the income you need as much as a larger investment account would.
Include irregular expenses and a tax allowance in the plan.
Obtain estimates for your own income sources
Use Social Security’s personalized benefit estimates for your own record. Estimates depend on your earnings and when you apply; the tool also lets you change assumed future earnings.
For a pension, request the payment options from the actual plan. Identify which amount you are comparing and what would happen after one spouse dies if that is relevant to the household.
Separate income sources that have begun from those that would start later. “We will eventually receive two benefits” does not fund a period in which only one has started.
Calculate the gap without mixing gross and net amounts
In this illustrative plan, spending already includes an allowance for income taxes, so both income lines stay gross:
| Planned retirement cash flow | Amount |
|---|---|
| Spending, including an allowance for income taxes | $4,300 |
| Gross Social Security income | $2,300 |
| Gross pension income | $1,000 |
| Remaining amount to fund | $1,000 |
The gap is $12,000 a year. Turning it into a savings target or withdrawal plan is the next step, and that depends on taxes, investment returns, and how many years the money has to last.
If a withdrawal itself creates additional taxes beyond the budgeted allowance, the amount needed can be higher. Social Security can be taxed too: the IRS explains that part of your benefits can become taxable when your modified adjusted gross income plus half of your benefits exceeds the base amount for your filing status.
Alternatively, work entirely with estimated after-tax income and spending that excludes income taxes. Be consistent; do not subtract the same tax twice.
Examine the years around retirement separately
If you stop working before a pension or benefit begins, the plan has to fund those months even when the later budget looks comfortable.
The CFPB explains that the Social Security claiming decision changes monthly benefits, and the amount is locked in when you claim, apart from yearly cost-of-living adjustments. Social Security’s own figures show the range: benefits can start at 62, full retirement age is 67 for anyone born in 1960 or later, and claiming at 62 with a full retirement age of 67 turns a $1,000 benefit into $700. Waiting past full retirement age adds delayed retirement credits of 8% a year for people born in 1943 or later, and the increase stops at 70. Compare the effect of each date on both the bridge period and the later household budget.
Your health, work options, family situation, and other resources belong in that decision.
If you retire before 65 and lose a job-based plan, HealthCare.gov says you can buy Marketplace coverage during a Special Enrollment Period, with premium tax credits depending on income and household size. For Medicare, the Initial Enrollment Period lasts 7 months, starting 3 months before the month you turn 65; missing it can mean a Part B late-enrollment penalty for as long as you have Part B.
Stress-test the plan before treating the gap as solved
Ask what would happen if major repairs arrived, investment values fell, or one household income ended. Check which expenses are adjustable and which are difficult to reduce quickly.
Put every estimate on the same dollar basis before comparing it with today’s grocery and rent bills, because inflation can change the purchasing power of an amount that looks large now. Check whether your pension rises with the cost of living the way Social Security does.
For withdrawal, tax, pension, or benefit decisions that would be hard to reverse, get advice specific to your situation.
Then write down, for each stage from the last paycheck onward, which income source pays the monthly bills and how much savings must add.
Sources checked October 5, 2026. All worked examples are illustrative, not survey estimates. General financial education, not individualized financial advice.
