Early Retirement Calculator

Frequently Asked Questions

What is the 4% rule and is it safe for early retirement?

The 4% rule says you can withdraw 4% of your initial portfolio and adjust for inflation each year, with high historical success over 30 years. For early retirements lasting 40-50 years, 3-3.5% is generally recommended for better long-term safety.

How do I handle healthcare before Medicare at 65?

Options include COBRA (expensive, short-term), ACA Marketplace plans (potentially subsidized based on income), a spouse's employer plan, or healthcare sharing ministries. Budget $800-$2,000/month for a couple depending on age and plan.

When should I start taking Social Security?

Delaying SS from age 62 to 70 increases the monthly benefit by roughly 77%. If you can cover expenses from your portfolio through 70, delaying almost always produces better lifetime income, especially for the higher-earning spouse in a couple.

What return rate should I use for early retirement modeling?

A real return (after inflation) of 4-5% is a conservative and widely used planning assumption for a diversified 60/40 to 80/20 stock-bond portfolio over a long horizon. Using the lower end of the range is prudent when modeling 40+ year retirements.

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Estimates for informational purposes only.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.

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How This Calculator Works

This calculator models how long your portfolio will sustain your desired spending. You enter your current savings, annual spending (net of any part-time income), expected investment return, and safe withdrawal rate. The tool projects the annual portfolio balance, showing the year it reaches zero - or confirming that it never runs out if growth plus ongoing income covers withdrawals indefinitely.

The core calculation is a year-by-year simulation: balance_t+1 = balance_t × (1 + r) − annual withdrawal. When annual withdrawal exceeds portfolio growth, the balance declines each year. The safe withdrawal rate is the key lever: raising it even slightly from 3.5% to 4.5% can shorten portfolio life by 10-15 years.

The FIRE Movement and Safe Withdrawal Rates

FIRE (Financial Independence, Retire Early) rests on the safe withdrawal rate (SWR) concept. Research from the Trinity Study found that a 4% inflation-adjusted withdrawal rate had about a 95% success rate over 30-year horizons using historical US stock and bond returns. However, for retirements of 40-50 years (which early retirees face), the 4% rate is less reliable - many planners recommend 3-3.5% for very early retirement.

The key variables are: the length of retirement, portfolio allocation (more equities = higher expected growth but more volatility), inflation rate, and the flexibility to reduce spending in down markets. The so-called guardrails approach - reducing withdrawals by 10-15% when the portfolio falls below a threshold and increasing them when it rises - dramatically improves long-term survival rates.

Bridging to Social Security and Medicare

One of the most significant challenges of early retirement in the US is the gap before Social Security (SS) and Medicare kick in. SS benefits begin as early as 62 (at a permanently reduced rate) or at full retirement age (67 for most people born after 1960) for the maximum base benefit. Medicare begins at 65. During the gap years, you must self-fund healthcare coverage - often the single largest expense for early retirees.

Delaying SS to age 70 increases the benefit by 8% per year from full retirement age, which is almost always the right move if you can cover expenses from your portfolio in the interim. Every year you delay lowers the portfolio withdrawal rate needed once benefits begin, dramatically improving long-term sustainability.

Tax Planning for Early Retirement

Early retirees often have low taxable income during the gap years before SS benefits begin, creating opportunities for tax-efficient strategies:

Roth conversions: Convert traditional IRA money to Roth while in a low tax bracket. This reduces future RMDs and grows the Roth tax-free indefinitely.

Long-term capital gains harvesting: Married couples with taxable income below roughly $94,050 (2026) pay 0% on long-term capital gains. Harvesting gains at zero creates a higher cost basis without current tax.

ACA healthcare subsidies: Income below certain multiples of the federal poverty level qualifies for Marketplace health insurance subsidies. Managing MAGI below key thresholds can save thousands per year in premiums.

Common Risks and Mitigation

Sequence of returns risk: A market crash in the first few years of retirement is disproportionately damaging. Maintaining 1-2 years of cash or short-term bonds as a buffer lets you avoid selling equities at lows.

Healthcare inflation: Medical costs have historically risen faster than general inflation. Build in a higher inflation rate for healthcare or model it separately.

Longevity: Living to 95 on a portfolio designed for 30 years (retiring at 55) leaves a dangerous gap. Model to age 100 to be conservative.

"One more year" syndrome: Delaying retirement indefinitely because the number never feels big enough. Run scenarios with optimistic, base, and pessimistic returns to find a defensible floor.

Tax laws change frequently. Verify current limits at IRS.gov and consult a qualified financial advisor before making retirement decisions.

Early Retirement Calculator

Frequently Asked Questions

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