A $1 million portfolio gives you a $40,000 first-year withdrawal at 4%. That is the useful part of the retirement rule. It does not tell you whether $40,000 covers your life, whether the portfolio survives fifty years, or whether you can stop working today.
This guide turns spending into a savings target, then shows how income, debt and returns change the time needed to reach it. The calculator is a simplified projection. The tax examples are for the United States, checked October 3, 2026.
What the 4% rule tested
A historical result for a particular portfolio and retirement length.
William Bengen's 1994 study tested portfolios against past US stock, Treasury and inflation data. A first-year withdrawal of 4% of the starting balance, followed by inflation adjustments to that dollar amount, lasted at least thirty years in every start-year scenario he examined. His illustrative portfolio held half stocks and half intermediate-term Treasuries and was rebalanced annually. Bengen 1994
The distinction matters: on $1 million, the first withdrawal is $40,000. If inflation is 3%, the second is $41,200, whatever the portfolio is worth then. This is a spending rule that may consume principal, rather than a claim that investments earn a steady 4%. The later Trinity study tested different stock-and-bond mixes and payout periods. It excluded taxes and transaction costs. Cooley, Hubbard and Walz 1998
The arithmetic is simple: annual portfolio withdrawals divided by the initial withdrawal rate equal the starting portfolio target. At 4%, that is twenty-five times the amount you withdraw. A $40,000 withdrawal target needs $1 million; $100,000 needs $2.5 million. Include withdrawal taxes, insurance and irregular expenses in that budget.
For a longer retirement, compare lower rates too. The calculator offers 3.5% and 3.25%, requiring about 28.6 and 30.8 times annual withdrawals. Those are scenarios to investigate, not guarantees for a fifty-year retirement. A lower rate cannot eliminate market risk.
Bengen's later 4.7% result also has an allocation attached. His September 2025 research describes 55% stocks, 40% bonds and 5% cash as the book's baseline, then tests higher stock allocations. It does not justify taking 4.7% from a single stock fund. Bengen 2025
What the target buys
These are withdrawals before tax, rather than guaranteed investment income.
| Invested portfolio | First-year withdrawal | Monthly equivalent | Budget to test |
|---|---|---|---|
| $1,000,000 | $40,000 | $3,333 | A lean budget in many places. Housing and healthcare may take much of it. |
| $1,500,000 | $60,000 | $5,000 | More room for recurring expenses, still dependent on housing and household size. |
| $2,500,000 | $100,000 | $8,333 | A larger budget, with taxes and exceptional expenses still to account for. |
| $5,000,000 | $200,000 | $16,667 | A high spending allowance. The withdrawal rule has the same limits. |
Calculated at a 4% initial withdrawal rate, with monthly figures rounded. At 3.5%, the same portfolios support smaller initial withdrawals.
These targets count assets available to fund retirement. A house you plan to keep living in cannot also pay the grocery bill. The Federal Reserve measured median family net worth at $192,900 in its 2022 survey, including housing and other nonfinancial assets; median financial assets among families holding them were $39,000. Neither figure describes a retirement-ready portfolio. Fed SCF 2022, tables 2 and 3
Estimate your number
Change the assumptions and compare the resulting saving schedules.
Your spending target and saving schedule
Drag the sliders or type over the numbers. The model uses today's buying power and a constant return. It estimates accumulation only, with no simulation of retirement withdrawals or chance of success. Figures and reference data checked October 3, 2026.
Model: monthly contributions and constant real returns, default 5%, chosen as an illustration. All surplus pays modeled debt first, then enters investments; existing investments stay invested. Debt APR is converted to today's dollars using assumed 3% inflation. Keep minimum payments affordable: this model does not reproduce a lender's repayment schedule. Income, spending and saving keep pace with inflation. The target excludes Social Security and pensions and has no retirement horizon. It is not a result of a withdrawal backtest.
Reference example: $72,330 annual post-tax household income (2024 Census), $39,000 financial assets (2022 Fed median among holders), no debt, and an assumed 4.5% saving rate. This combination is synthetic, not a measured median household. The spending-track marker is $78,535 divided by twelve, the BLS 2024 average for consumer units; it includes categories such as pension contributions that differ from this tool's living-cost input. Census Fed BLS
The gap between income and spending controls contributions. It also constrains what the calculator can tell you: a constant-return curve cannot show a layoff, a rent increase or a market crash. Try several returns and budgets before treating its date as useful.
Saving half of take-home pay reaches that illustrative target in about seventeen years. That rate is feasible for some high-income households and unavailable to many others. Rent, caregiving, disability, debt and wages constrain the gap. Changing a slider is easier than changing those conditions.
What gets taxed
The account and the income type matter as much as the amount withdrawn.
Consider two simplified 2026 examples. A single employee under 65, earning $100,000 with no pretax contributions or credits, owes $13,170 in federal income tax using the standard deduction, plus $7,650 in employee Social Security and Medicare taxes: $20,820 altogether. A married couple, both under 65, selling $120,000 of stock with a $60,000 cost basis can owe $0 in federal income tax if the shares were held over a year and they have no other income. Different filing statuses and income types make this a tax illustration, not a like-for-like retirement budget. IRS 2026 tables IRS payroll rates
Only the $60,000 gain is income in that sale. The couple's $32,200 standard deduction leaves $27,800 of taxable income, within the 2026 married-joint 0% long-term capital-gains bracket of $98,900. With no other income, that deduction and bracket allow up to $131,100 of long-term stock gains at a zero federal income-tax rate. Ordinary income uses deduction and bracket space too. State taxes can still apply. IRS capital gains IRS 2026 limits
Roth conversions need a withdrawal plan
A Roth conversion moves pretax retirement money into a Roth account and generally includes it in that year's ordinary income. Low-income years may make conversion cheaper; unused deductions can sometimes cover the taxable amount. Conversions can also increase the tax on capital gains and reduce health-insurance subsidies. There is no universal tax-free conversion allowance. IRS Publication 590-A
Before age 59½, a conversion ladder also needs money for the waiting period. Taxable converted amounts generally have a separate five-tax-year clock before withdrawal avoids the 10% early-distribution tax, unless an exception applies. Roth IRA ordering rules distribute regular contributions first, then conversions, then earnings. Tax-free earnings have another qualification test, generally requiring the Roth five-year period and age 59½. These clocks are easy to confuse. IRS Publication 590-B
HSA receipts can stay useful
An eligible health savings account can receive federally deductible contributions, grow without annual federal income tax, and reimburse qualified medical expenses tax-free. You can defer reimbursement without a time limit, but the expense must follow the HSA's establishment. Keep receipts; it must not have been reimbursed elsewhere or taken as an itemized deduction. State treatment can differ. IRS Publication 969 IRS Notice 2004-50, Q39
Debt before the target
A portfolio calculation is useful only after the monthly bills fit.
The Federal Reserve's 2025 household survey found that 63% of adults would cover a hypothetical $400 emergency entirely with cash, savings or a credit card paid off at the next statement. The other 37% is not a measure of everyone unable to pay; some would borrow or use another method. It does show why a long investment plan needs a short-term reserve. Fed SHED 2025
A $7,000 card balance at a 22% APR incurs about $128 of interest in its first month under a simple APR-divided-by-twelve calculation. Paying principal reduces that charge. Minimum-payment payoff times depend on the issuer's formula and future rates; a single twenty-two-year estimate cannot describe every card.
A workable saving order
- Keep essential bills and minimum debt payments current, and build enough cash to avoid borrowing for the next ordinary surprise.
- Check an employer retirement match, its contribution limit and vesting rules. A match can be valuable, but it is plan-specific.
- Direct extra debt payments to the highest interest rate. Avoiding a 22% card charge is a much firmer benefit than hoping for a stock return.
- Build a reserve suited to your employment and obligations. Then choose retirement accounts according to eligibility, taxes, fees and the age when you need access.
- Automate investing in a diversified portfolio. A taxable account can help fund years before retirement-account access is straightforward.
Fees belong in the return assumption. With no additional deposits, $100,000 compounding at 5% for forty years becomes about $704,000; at 4%, about $480,000. That calculated difference illustrates a one-percentage-point reduction in annual net return. Check both fund costs and advisory charges. SEC fee guide
Income and time
A raise helps only to the extent that it becomes additional saving.
An extra $10,000 saved at each year-end for twenty-five years grows to about $632,000 at a constant 7% return. That is a calculated example before taxes and fees. A $10,000 gross raise produces less after tax, and the example is in nominal dollars unless 7% is explicitly a real return.
Training or changing employers can improve the gap, but admission, tuition, physical demands and local openings matter. The following occupations offer routes that can avoid a bachelor's degree. Their median wages describe established workers, not new entrants.
Occupation examples and entry requirements
| Path | Annual median wage | Entry and constraints |
|---|---|---|
| Elevator mechanic | $109,910 | Typically a four-year apprenticeship with paid on-the-job training; most states require a license. |
| Air traffic controller | $148,080 | FAA entry-level applicants must be under 31. Academy training is paid; medical, testing and experience requirements apply. |
| Nuclear reactor operator | $122,890 | Extensive training, experience and an NRC license. Shift work and continuing examinations. |
| Radiation therapist | $105,310 | Usually an associate or bachelor's degree; most states require licensing or certification. |
| Registered nurse | $97,550 | Associate, bachelor's or approved diploma routes, plus licensure. Employers may prefer a bachelor's degree. |
| Dental hygienist | $98,100 | Usually an associate degree; programs typically take three years. All states require licensing. |
| Power-line installer | $95,320 | Technical instruction and on-the-job training; apprenticeships are common. Dangerous work and emergency callouts. |
| Technology sales | Check the offer | Separate guaranteed base pay from commission at quota. A posted on-target figure is not assured income; education requirements vary. |
| Military career | Plan-specific pension | Separate retirement eligibility and pay rules from current salary. Service obligations and retirement system determine the result. Military OneSource |
The seven wage figures are BLS May 2025 national medians, checked October 3, 2026. They are gross wages. Each occupation links to its pay and entry requirements; the FAA hiring page supplies the entry-level age and academy details.
Compounding also changes the contribution schedule. With $20,000 a year deposited monthly and a constant 7% effective annual return, the first $100,000 takes about 4.3 years. The step from $900,000 to $1 million takes about 1.2. These figures assume no taxes, fees or interruptions. A real market can delay either step.
What the success stories show
Documented wealth is evidence of an outcome, not of its probability.
Large fortunes have been accumulated on ordinary salaries. The familiar stories often describe people investing into old age and leaving money at death, rather than funding decades of early retirement. They also omit the savers who bought unsuccessful companies.
Four examples, with their limits
Ronald Read, a gas-station attendant and janitor, left an estate worth nearly $8 million. Brattleboro Memorial Hospital described his long-held investments when naming a pavilion for him. BMH 2022
Grace Groner, an Abbott secretary, left more than $7 million to a foundation supporting Lake Forest College students. The college traces it to an initial $180 stock investment. That successful concentration in one employer is an outcome, not a diversification strategy. Lake Forest College 2010
Sylvia Bloom worked as a legal secretary for sixty-seven years and bought small amounts of stocks her employer bought. Henry Street Settlement's account describes her gift and the scholarship fund it created. Henry Street 2018
Anne Scheiber, a retired IRS employee, left $22 million for women's scholarships in 1995. The Associated Press reported the bequest; Yeshiva University describes the continuing fund. The often-repeated claim that the entire fortune began with only $5,000 is not needed to understand that gift. AP 1995 Yeshiva University
How assets fund spending
Withdrawal, yield and annuity payout are different quantities.
A dividend is a payment from a company; a portfolio withdrawal may also involve selling shares. A bond ladder or annuity can return some of your original principal. Comparing their cash payments as if they were the same investment return makes the larger number look better than it is.
| Source | What it does | What to account for |
|---|---|---|
| Diversified stock-and-bond portfolio | Fund spending from dividends, interest and sales. | A withdrawal rate sets a spending policy. Asset allocation and the order of returns affect how long it lasts. |
| TIPS ladder | Schedule inflation-linked Treasury principal and interest. | Match maturities to spending. A ladder that spends principal ends on its final maturity; extending the horizon costs more. Selling early exposes you to market prices. TreasuryDirect |
| Lifetime annuity | Buy a contractual stream of payments. | Quote the actual age, survivor option and inflation protection. A fixed nominal payment loses buying power; insurer solvency and limited access to principal matter. SEC annuity guide |
| Rental property | Collect rent after operating costs. | Gross rental yield excludes maintenance, vacancies, financing and taxes. Management is work, whether you do it or pay someone else. |
| Dividend funds | Distribute cash from stock holdings. | Dividends can be cut. A high yield alone says little about future total return or retirement safety. |
| Social Security | Provide benefits if your work record qualifies. | SSA estimated an average retired-worker benefit of $2,071 a month for January 2026. Your record and claiming age determine yours. SSA estimate |
Social Security needs its own timeline. You can generally claim retirement benefits from 62; full retirement age is 67 for people born in 1960 or later. Stopping work early can lower benefits because the calculation uses your highest thirty-five years of earnings, including zeros when you have fewer. Check an estimate with future earnings set to your actual plan. The calculator above leaves benefits out rather than treating them as money available today. SSA claiming ages SSA stopping work
What the projection leaves out
Start with the risks that would force a change in spending.
Losses near retirement
Sequence risk means that returns arrive in an order that harms a withdrawing portfolio. Selling shares after early losses leaves fewer shares to recover, even when the long-run average return looks acceptable. Cash and bonds, a lower initial withdrawal or spending adjustments can reduce the pressure, but none makes a stock portfolio certain. Bengen's paper began by showing why averages alone were insufficient. Bengen 1994
Decide which expenses you could reduce before testing a flexible withdrawal policy. Skipping an inflation increase is a real spending cut when prices rise. A method that succeeds by reducing spending may fail your personal minimum budget.
Inflation and fees
At an assumed 3% annual inflation rate, $2.5 million in today's buying power corresponds to about $5.23 million twenty-five years from now. That is calculated compounding, not an inflation forecast. The calculator holds real income and spending constant, so the nominal dollars saved must rise too. Wage growth does not necessarily keep up.
Health insurance before Medicare
Price coverage for your household and ZIP code before leaving employer insurance. Include premiums, the plan's out-of-pocket limit and expenses outside covered services. Medicare generally begins at 65, and it has premiums and coverage gaps of its own. A national premium estimate cannot price your retirement. Medicare eligibility
For 2026, Marketplace premium tax credits generally require household income from 100% through 400% of the applicable poverty guideline, along with other eligibility conditions. For a two-person household in the contiguous states and DC, 2026 coverage uses the 2025 guideline of $21,150, giving an upper income limit of $84,600. Alaska and Hawaii differ. A couple with $85,000 of Marketplace income is over that limit; $60,000 may qualify, but the subsidy amount depends on local benchmark premiums and eligibility. IRS premium tax credit FAQ HealthCare.gov guidelines
Marketplace income is modified adjusted gross income, rather than taxable income after the standard deduction. Capital gains, taxable conversions and tax-exempt interest count; wealth itself is not the eligibility test. Affordable employer coverage or Medicare eligibility can disqualify you. From tax year 2026, excess advance premium credits have no repayment cap, making accurate income estimates especially consequential. HealthCare.gov income IRS eligibility and repayment
Changes in the household
A child, separation, disability or caring for a parent can change both spending and earning capacity. Rather than assigning each a national dollar cost, rerun the budget with the obligations you could face. Insurance and cash reserves protect some risks; a retirement date that assumes uninterrupted work still needs a fallback.
Promises of effortless income
In its 2024 case against Ascend Ecom, the FTC alleged at least $25 million in losses from an online-storefront scheme marketed with AI and passive-income claims. Scrutinize the return guarantee and what the automation actually does. FTC complaint announcement
What an investment return represents
The portfolio owns claims on businesses and borrowers.
Shareholders receive dividends and may sell their ownership claims at a different price. Bondholders receive promised interest and principal, subject to the issuer's ability to pay. Workers and productive businesses make those claims valuable, but investors also face competition, failure and changes in what buyers will pay. An index fund spreads ownership across many securities; it cannot fix the return in advance.
The businesses and borrowers you hold affect expected return and risk. Choosing that allocation sits between the spending calculation and a usable retirement plan.
Where the idea came from
A short reference, separate from the calculation.
Dominguez and the early-retirement idea
Joe Dominguez retired from Wall Street work in 1969 at 31 with $70,000 saved. PBS's profile describes his thirty-year approach: live on the interest, keep expenses low and volunteer. He and Vicki Robin later wrote Your Money or Your Life. His Treasury-based plan differs from the stock-and-bond withdrawal research and from the calculator here. PBS profile
What to check next
Turn the estimate into a budget you can test.
- Use a year's actual spending, including annual bills and repairs, to set a retirement budget. Add the taxes and insurance that would replace payroll deductions.
- List investable assets separately from housing, reserves and debts. Check when each account can fund spending.
- Compare more than one return and withdrawal rate. Then test an actual retirement horizon with an allocation-specific withdrawal model.
- Use your own Social Security estimate and local insurance quote. Revisit both as the planned date gets closer.
The calculator can estimate a saving schedule. It cannot determine how much of your spending will be optional after a bad market decade, or how long you will need the portfolio to last.