When Can I Retire? The Honest Answer (2025)

Here's the truth: retirement isn't about reaching a specific age. It's about reaching a specific number — the point where your money generates enough income to replace your paycheck. This article shows you exactly how to calculate that number, check whether you're on track, and figure out your personal retirement date.

The retirement question most people ask wrong

Most people ask: "Can I retire at 62?" or "Can I retire at 65?" These are the wrong questions. The right question is: "Do I have enough money — and enough income sources — to cover my expenses for the rest of my life?"

Age is just a proxy for readiness. What actually matters is whether your combination of savings, investment income, Social Security, and any other income covers what you spend every month — with enough cushion to last 25–35 years.

Step 1: Know your retirement income target

Before you can know if you have "enough," you need to know enough for what. What will you spend per month in retirement?

Financial planners typically use the 80% replacement rate rule: most retirees spend about 80% of their pre-retirement income. This makes sense — you're no longer saving for retirement, not commuting, and your kids (hopefully) are off the payroll. But you may spend more on healthcare, travel, and leisure.

A better approach: think about what you actually want your life to cost. Not what it costs today — what you want it to cost in retirement. Write down your essential expenses (housing, food, healthcare, utilities) and your discretionary spending (travel, dining out, hobbies). That number is your target.

Step 2: Calculate your retirement number

Your retirement number is the size of the investment portfolio you need to sustainably fund your retirement lifestyle. The most widely used method is the 4% safe withdrawal rate, derived from William Bengen's landmark 1994 research.

Examples:

Important caveat: these figures assume your portfolio is funding all of your expenses. If you have other income — Social Security, a pension, rental income — you only need to fund the gap. This dramatically changes the number.

Factor in your other income sources

The real retirement number is: Annual Gap × 25, where the gap = Annual Expenses minus all guaranteed income.

Example: You want $5,000/month. You'll get $2,200/month from Social Security. Your gap is $2,800/month ($33,600/year). Your portfolio only needs to cover 25 × $33,600 = $840,000 — not the $1.5M you might have assumed.

Step 3: Know where you actually stand

Add up all your retirement savings: your 401(k), IRA, Roth IRA, taxable investment accounts. Don't include your house value (it's not liquid) or emergency fund.

Now project what that balance will be at your target retirement age. Use the compound growth formula:

Realistic return assumptions: The US stock market has returned roughly 10% annually before inflation, or ~7% after inflation historically. A diversified 60/40 portfolio (60% stocks, 40% bonds) returns around 5–6% after inflation long-term. Use 6–7% in your planning — be conservative, not optimistic.

Step 4: Check your savings rate

If you're behind, the single most powerful lever you have is your savings rate. Not your investment return — that's outside your control. Your savings rate is entirely within your control.

Based on 7% real return and 4% withdrawal rate. Source: Mr. Money Mustache / standard FIRE calculations.

Step 5: The three retirement scenarios

Scenario A: Traditional retirement (age 62–67)

This is the most common path. Work until your mid-60s, claim Social Security, and draw from a 401(k)/IRA. The challenge: healthcare costs before Medicare at 65, and the risk of running short if you live past 90.

Scenario B: Early retirement (age 50–62)

Possible, but requires a much larger nest egg because you need it to last 35–45 years, you can't claim Social Security early without penalty, and you face years without Medicare. The 4% rule was designed for 30-year retirements — for 40+ years, some researchers suggest 3–3.5% to be safe.

Scenario C: FIRE (age 35–50)

Financial Independence, Retire Early. This requires an extreme savings rate (50%+), a very lean or very high-income lifestyle, and careful planning around healthcare, Roth ladders, and tax efficiency. For a 50-year retirement, a 3% withdrawal rate or part-time "barista FIRE" income provides additional security.

Common mistakes that delay retirement

• Waiting too long to start: Every 10 years of delay roughly doubles the required monthly savings to reach the same goal.
• Ignoring Social Security optimization: Claiming at 70 instead of 62 can mean $500–$1,000 more per month, for life.
• Underestimating healthcare costs: Healthcare is the #1 budget buster in early retirement. Budget $800–$1,200/month before Medicare.
• Too conservative investing: A 60-year-old with a 30-year horizon should still hold significant stocks. Bonds-only portfolios often fail to keep up with inflation.
• Not accounting for inflation: $5,000/month in 2025 buys $3,700/month of stuff in 2045 at 2.5% inflation.

The bottom line: how to find your retirement date

1. Decide your target monthly income in retirement.
2. Subtract guaranteed income (Social Security, pension).
3. Multiply the gap by 25 (or divide by 4%) to get your portfolio target.
4. Project your current savings forward to find when you'll hit that target.
5. Check your savings rate and contributions to hit the target sooner.

Our free calculator does all of this automatically, with real-time charts showing exactly when you can quit — plus sensitivity bands showing what happens if markets perform better or worse than expected.