SWP Calculator
Find out how long your corpus lasts or how much you can withdraw monthly
functions SWP Formula
n = −ln(1 − C×r/W) / ln(1+r)
C = Corpus | r = Monthly rate | W = Monthly withdrawal
Real-Life Guide to Using the SWP Calculator
Systematic withdrawal plan. Use the examples and checks below to turn the number into a practical decision.
When this calculator is useful
Meant for retirees or anyone drawing a regular income from an existing corpus — for instance, someone who has just retired with ₹50,00,000 in a mutual fund and wants a fixed monthly payout without touching a bank FD.
For most people, the best way to use the SWP Calculator is to try the real case first, then change one input at a time. That makes the trade-off visible. For example, with a loan calculator you can change tenure while keeping the same rate; with an investment calculator you can change return assumption while keeping the same monthly contribution; with a health, education or measurement calculator you can check how much one input changes the final category.
The result should answer a practical question: Can I afford this? How much should I save? Is this score enough? Is this measurement within range? What is the safer or cheaper option? If the output does not answer the decision clearly, adjust the inputs until the scenario matches your real situation.
Practical Advice
Use the SWP Calculator as a planning tool, not just a number generator. Write down the inputs you used, because the final answer is meaningful only when you remember the assumptions behind it.
If the decision affects money, health, tax, safety, academics or legal compliance, keep a second check ready. That second check may be a bank quote, payslip, official rule, prescription, site measurement, mark sheet or invoice.
Common Mistakes
- Setting the monthly withdrawal higher than the corpus's expected growth rate can sustain — e.g. withdrawing ₹40,000/month (9.6% annually) from a ₹50,00,000 corpus growing at an assumed 8%, which draws down principal faster than it can be replenished.
- Assuming the withdrawal amount can simply be increased every year for inflation without re-checking whether the corpus and return rate can still support the higher payout.
- Forgetting that each SWP withdrawal is treated as a partial redemption of units, triggering capital gains tax on the gain portion of every withdrawal, not just at the end.
- Using a single flat return assumption for the entire withdrawal period even though the person may be 25-30 years into retirement, where sequencing of good and bad years matters far more than the average.
- Not checking exit load — withdrawing from a scheme within the load period (commonly the first year) can shave off around 1% from each redemption unexpectedly.
How to Interpret Results
Compare the monthly withdrawal to the corpus's implied monthly growth at your assumed rate — if withdrawals exceed growth, the calculator's ending balance will show the corpus shrinking over time, telling you the payout is not sustainable long-term.
A good interpretation looks at both the main result and the supporting values. If a page shows totals, ratios, categories, schedules or warnings, read those together instead of focusing only on the biggest number.
SWP Calculator FAQs
Useful answers for interpreting the output, avoiding mistakes and using the result responsibly.
What is an SWP Calculator?
A Systematic Withdrawal Plan (SWP) lets you withdraw a fixed amount from your mutual fund corpus every month. Your remaining corpus continues to earn returns, giving you steady income while keeping your wealth working.
Ideal for retirees or anyone wanting monthly income from their investment without selling the entire corpus at once. This calculator shows how long your corpus lasts, the total amount you can withdraw, and whether your withdrawal rate is sustainable based on expected returns.
Types of SWP
Choose the SWP variant that matches your income need and investment goal
8 Mistakes to Avoid in SWP
Small errors in withdrawal planning cost more than market downturns — avoid these to protect your retirement corpus
SWP Questions Answered
Practical questions on tax, fund selection, sustainability, and more