SWP Calculator

An SWP calculator shows how a regular monthly withdrawal affects your invested money. Enter the amount invested, the monthly withdrawal, expected return and years. It shows the balance left, when the money would run out, and the highest withdrawal that lasts your chosen period.

When money runs outSafe withdrawalYearly increase
₹

50 lakh

₹

30 thousand

%

years

More options
How the yearly return is applied

Calculator sites differ here. “Divide evenly” splits the yearly return equally (12% a year becomes 1% a month) and is what most sites use. “Exact yearly rate” makes the months add up to exactly 12% a year, so results are slightly lower.

Calculating…

 

How SWP is calculated

Each month the remaining balance earns the monthly return, then your withdrawal is paid out. Without a yearly increase, the balance after n months is:

A = P × (1 + i)^n − W × [((1 + i)^n − 1) ÷ i] P = amount invested W = monthly withdrawal i = monthly rate (yearly rate ÷ 12)

Worked example

₹50 lakh earning 8% a year, paying ₹30,000 a month for 20 years, still leaves about ₹69,63,401. The highest monthly withdrawal that lasts exactly 20 years is about ₹41,822. Withdrawing ₹33,333 a month or less never touches the original ₹50 lakh.

Plan for rising costs

A fixed withdrawal buys less every year. Tick “Raise the withdrawal every year” to increase it, say by 5% a year, and see whether your money still lasts. This is the most common reason retirement plans fall short.

Frequently asked questions

How much can I withdraw every month without running out?

The calculator shows the highest starting withdrawal that lasts exactly your chosen period. A lower amount leaves a balance at the end.

What is a safe withdrawal rate?

A withdrawal at or below what your money earns each month keeps the starting amount intact. Anything above that slowly uses up your capital.

Does SWP include inflation?

Tick “Raise the withdrawal every year” to increase payouts in line with prices, and tick “Show the result in today’s money” to see the balance at today’s prices.

What happens after the withdrawal period?

The table continues for 25 more years. Choose “Keep withdrawing” or “Stop withdrawals” to see either path.

Is SWP income taxable?

Each withdrawal can include capital gains, which are taxed under your country’s rules. Check the current rules or ask a tax adviser.

Last updated October 2026. Formulas are tested against published examples before release. Results are estimates, not advice. Read the disclaimer.

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