Find your sustainable monthly withdrawal, see exactly when your corpus depletes, and plan a retirement income that lasts as long as you need it to.
A Systematic Withdrawal Plan (SWP) is the retirement equivalent of a SIP — but in reverse. Instead of putting money into a fund every month, you take a fixed amount out. The remaining corpus stays invested, keeps earning returns, and funds future withdrawals. Done right, your corpus can last decades. Done wrong, it depletes in years.
Raghunath retires at 60 with a ₹1 crore corpus in a balanced fund earning 8% annually (≈0.67% monthly). He wants ₹50,000/month to live on.
Monthly return on ₹1 crore at 0.67%: ₹66,667. He withdraws only ₹50,000. The surplus ₹16,667 stays invested and grows the corpus. His corpus actually grows over time — he can never outlive it at this withdrawal rate.
His neighbour Suresh takes ₹80,000/month from the same corpus. He withdraws ₹13,333 more than the monthly return. His corpus shrinks every month. It depletes in about 19 years — when he's 79. He outlives his money.
The "sustainable withdrawal" is the amount equal to your corpus's monthly return. Withdraw exactly that amount and your corpus never depletes. Withdraw less and your corpus grows. Withdraw more and you are racing against time. This calculator shows you exactly which zone you are in.
Not accounting for inflation. Even if your corpus lasts 25 years, ₹50,000/month in 2025 will feel like ₹17,000/month in 2050 (at 6% inflation). Consider increasing your SWP amount by 5-6% every year to maintain purchasing power — this calculator shows you the impact of a fixed vs inflation-adjusted withdrawal.
See how long your retirement savings last
Monthly withdrawals from ₹1 crore corpus — how many years the corpus lasts at different return rates
| Monthly Withdrawal | At 6% Return | At 8% Return | At 10% Return | At 12% Return |
|---|---|---|---|---|
| ₹30,000 | Forever ✓ | Forever ✓ | Forever ✓ | Forever ✓ |
| ₹50,000 | 37 years | Forever ✓ | Forever ✓ | Forever ✓ |
| ₹75,000 | 18 years | 26 years | Forever ✓ | Forever ✓ |
| ₹1,00,000 | 12 years | 17 years | 31 years | Forever ✓ |
| ₹1,50,000 | 8 years | 10 years | 14 years | 24 years |