How much money do you actually need to retire?
By the RetireGlide Team · July 1, 2026
Most people need roughly 25 times their expected annual spending (minus Social Security and pensions) saved to retire — so a household spending $80,000 a year with $35,000 of Social Security needs about $1.1 million, not $2 million. The honest answer, though, is that the number depends far more on your spending, retirement age, and guaranteed income than on any universal target.
That's why two neighbors with identical salaries can have wildly different targets: one retires at 62 with a pension and a paid-off house; the other retires at 58 with neither and a decade of health-insurance premiums to bridge before Medicare.
Where the 25x rule comes from
The 25x rule is the 4% rule flipped around: if withdrawing 4% of a portfolio each year (adjusted for inflation) historically survived 30-year retirements, then you need 1 ÷ 0.04 = 25 times your annual withdrawal need. The key phrase is withdrawal need — the gap your portfolio must fill after guaranteed income, not your gross spending.
The rule's biggest weakness is that it prices a worst-case 30-year sequence. Retire into average markets and 25x is conservative; retire early into a bad decade and it may be tight. It also ignores taxes entirely — $1 million in a traditional 401(k) is worth meaningfully less after tax than $1 million in a Roth IRA.
The income-replacement shortcut (and its trap)
The other common rule — you'll need 70–80% of pre-retirement income — works as a first pass because retirement removes payroll taxes, retirement contributions, and commuting. But it anchors on income, and retirement is funded by spending. A family earning $200,000 that saves $60,000 a year lives on far less than 80% of income already; a family earning the same and saving nothing may need more than 80%.
The variables that actually move your number
In practice, five inputs dominate the calculation:
- Annual spending in retirement — the single biggest driver; a $10,000/year change moves the 25x target by $250,000.
- Retirement age — earlier retirement means more years to fund and fewer years of Social Security accrual, plus a pre-Medicare health-insurance bridge.
- Guaranteed income — Social Security, pensions, and annuities shrink the gap your savings must cover, dollar for dollar.
- Account mix — pre-tax, Roth, and taxable dollars are taxed differently on the way out; the same balance supports different spending depending on where it sits.
- Longevity and health — planning to 95 instead of 85 changes the math more than most investment decisions ever will.
A number is a snapshot — a plan is a probability
Any single 'magic number' hides the real question: in what fraction of plausible market futures does your money last? A Monte Carlo simulation runs your specific situation — accounts, taxes, Social Security timing, spending — through a thousand market sequences and reports a success rate instead of a single pass/fail number. That converts 'do I have enough?' into 'how sturdy is my plan, and what's the safe spending range it supports?' — a question you can actually manage year by year.
Frequently asked questions
- Is $1 million enough to retire?
- For many households, yes — $1 million plus typical Social Security benefits can support roughly $70,000–$75,000 of annual spending at a 4% initial withdrawal rate. Whether that's enough depends on your spending, retirement age, health costs, and taxes, which is why modeling your own numbers beats any threshold.
- How much should I have saved by age 60?
- Common benchmarks suggest 6–8x your salary by 60 if you plan to retire around 67. Benchmarks are calibration, not verdicts — a paid-off house, a pension, or low spending can make a 'behind' balance perfectly adequate.
- Does the 25x rule include Social Security?
- It should. Apply 25x to the spending gap your portfolio must fill after Social Security and pensions — not to your total spending. Skipping this step is the most common way people overestimate what they need.
- How do taxes change the target?
- Withdrawals from traditional 401(k)s and IRAs are taxed as ordinary income, so a mostly pre-tax portfolio needs to be larger than a mostly Roth one to fund the same after-tax spending. A tax-aware projection prices this in year by year.
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Sources
RetireGlide is an educational modeling tool, not an investment, tax, or legal adviser. Numbers that change annually (tax thresholds, premiums, benefit formulas) are approximate — always verify against the official sources above. Read our full disclaimer.