# Can I take early retirement?

Projects your savings to a chosen early retirement age and through retirement, and shows the savings you need then, the gap, the extra yearly saving that closes it, and how long the money lasts.

- Page: https://www.acalculator.org/finance/early-retirement-calculator
- JSON spec: https://www.acalculator.org/finance/early-retirement-calculator.json
- Version: 1ca56569654c

## Default answer

Example with the default inputs (Your age 35, Retire at age 55, Plan until age 95, Saved today $150,000.00, You save $25,000.00, Yearly spending in retirement $50,000.00, Other yearly income in retirement $0.00, Expected yearly return 7%, Inflation 3%): Retiring at 55, you would have $1,056,899.43 and need $1,046,138.83 to spend $50,000.00 a year until 95.

## Inputs

| Key | Label | Description |
| --- | --- | --- |
| age | Your age | Your age now. |
| retire | Retire at age | The age you want to stop working. |
| until | Plan until age | The age your money should last to; plan past your life expectancy. |
| saved | Saved today | What you have invested for retirement now. |
| save | You save | What you invest per year or per month until you retire, in today’s money. A monthly amount is × 12. |
| spending | Yearly spending in retirement | What you will spend each year once you retire, in today’s money. |
| income | Other yearly income in retirement | Pension, rent or part-time pay you will get every year of retirement, in today’s money. |
| rate | Expected yearly return | The yearly investment return before inflation, the same every year. |
| inflation | Inflation | How fast prices rise each year. The real return is (1 + return) ÷ (1 + inflation) − 1. |

## Outputs

| Key | Label | Description |
| --- | --- | --- |
| atRetirement | Savings when you retire | Your projected savings on the day you retire, in today’s money. |
| needed | Savings you need then | What pays your spending less other income every year until the planning age, at the real return. |
| shortfall | Shortfall | Savings you need minus savings you will have, when it is more than 0. |
| surplus | Surplus | Savings you will have minus savings you need, when it is 0 or more. |
| extra | Extra to save each year | The added yearly saving, in today’s money, that closes the shortfall by your retirement age. |
| lastsTo | Money runs out at age | The age at which a year’s spending is more than what is left. |
| status | On track? | Whether the money lasts to your planning age. |
| left | Left at the planning age | Savings left at the planning age, in today’s money. |

## Method

Real return r = (1 + R) ÷ (1 + inflation) − 1. Each working year: balance × (1 + r) + saving. Each retirement year: (balance − (spending − other income)) × (1 + r). Needed at retirement = need × (1 − (1 + r)^−N) ÷ r × (1 + r) for N retirement years; extra saving = shortfall × r ÷ ((1 + r)^n − 1) for n working years.

## Assumptions

- All amounts are in today’s money: your saving, spending and other income rise with prices.
- Savings are added at the end of each working year; retirement spending is taken at the start of each retirement year.
- The return and inflation stay the same every year. Real returns go up and down.
- Taxes, fees and Social Security are not included unless you put them in other income. Taking money from a 401(k) or similar plan before age 59½ usually adds a 10% tax (IRS Topic 558).
- This is an estimate for planning, not financial advice.

## Worked examples

1. age = 40, retire = 50, until = 60, saved = $0.00, save = $50,000.00, spending = $50,000.00, income = $0.00, rate = 0%, inflation = 0% gives atRetirement = $500,000.00, needed = $500,000.00, surplus = $0.00, left = $0.00, status = Yes, to age 60. Source: U.S. Securities and Exchange Commission, Investor.gov compound interest calculator and formula. https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator.
2. age = 40, retire = 50, until = 60, saved = $0.00, save = $40,000.00, spending = $50,000.00, income = $0.00, rate = 0%, inflation = 0% gives atRetirement = $400,000.00, shortfall = $100,000.00, extra = $10,000.00, lastsTo = 58, status = No, it runs out at 58. Source: U.S. Securities and Exchange Commission, Investor.gov compound interest calculator and formula. https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator.
3. age = 35, retire = 55, until = 95, saved = $150,000.00, save = $25,000.00, spending = $50,000.00, income = $0.00, rate = 7%, inflation = 3% gives atRetirement = $1,056,899.43, needed = $1,046,138.83. Source: U.S. Securities and Exchange Commission, Investor.gov compound interest calculator and formula. https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator.
4. age = 30, retire = 31, until = 33, saved = $100,000.00, save = $0.00, spending = $30,000.00, income = $10,000.00, rate = 10%, inflation = 0% gives atRetirement = $110,000.00, needed = $38,181.82, surplus = $71,818.18. Source: IRS Topic No. 558, Additional tax on early distributions from retirement plans other than IRAs. https://www.irs.gov/taxtopics/tc558.

## FAQ

### How much do I need to retire early?

Enough to pay your yearly spending, less any other income, every year from your retirement age to the age you plan to. At a real return r for N years, that is spending × (1 − (1 + r)^−N) ÷ r × (1 + r). At 0% it is simply spending × years: $50,000 a year for 10 years is $500,000.

### How is this different from the FIRE calculator?

The FIRE calculator finds when your savings reach a target from the 4% rule. This page starts from the age you choose, plans to the age you choose, and tells you the gap and the extra saving that closes it.

### What return should I use?

Use a return you expect on average before inflation; the page takes inflation off to get the real return. With 7% and 3% inflation the real return is 1.07 ÷ 1.03 − 1 = 3.88% a year. Returns are never guaranteed, so also try a lower one.

### How much more do I need to save each year?

Divide the shortfall by what $1 saved each year grows to by your retirement age: shortfall × r ÷ ((1 + r)^n − 1) for n working years. At 0% a $100,000 shortfall over 10 years is $10,000 a year.

### Can I take money from my 401(k) before 59½?

Usually with a 10% additional tax on top of income tax. The IRS lists exceptions, such as leaving your job in or after the year you turn 55 for that employer’s plan, and substantially equal periodic payments. Plan which accounts pay for the years before 59½.

### Why does the page use today’s money?

So the numbers mean what they buy today. Your saving, spending and other income all rise with inflation, and growth is the return after inflation.

## Sources

- U.S. Securities and Exchange Commission, Investor.gov, Compound Interest Calculator (yearly compounding with yearly additions). https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator (cited as in the repository’s FIRE page; investor.gov refused a scripted read on 2026-10-01)
- IRS, Topic No. 558, Additional Tax on Early Distributions From Retirement Plans Other Than IRAs (10% before age 59½; exceptions include separation from service after age 55). https://www.irs.gov/taxtopics/tc558 (retrieved 2026-10-01)