The SWP Withdrawal Rate That Grows Your Corpus Forever (And the One That Drains It)
By the QuickYield Team · Published September 15, 2026 · 5 min read
₹30,000/month withdrawn from a ₹50 lakh corpus at 8% expected returns doesn’t just last 15 years — the corpus actually grows to ₹61.5 lakh over that time, even after withdrawing ₹54 lakh total. Push the same ₹50 lakh corpus to a ₹50,000/month withdrawal instead, and it runs out in just 13.8 years. The difference between those two outcomes isn’t the corpus size — it’s a single number: your withdrawal rate relative to your expected return.
The number that actually determines whether SWP is sustainable
A Systematic Withdrawal Plan grows your remaining balance at your expected return every month while you withdraw a fixed amount — which means the real question isn’t “how much am I withdrawing” in isolation, it’s how your annual withdrawal rate (withdrawal × 12 ÷ corpus) compares to your expected annual return. Withdraw below your return rate, and the growth on your remaining balance outpaces what you’re taking out — your corpus can grow indefinitely even while funding your withdrawals. Withdraw above it, and you’re drawing down principal every month, on a clock that eventually runs out.
Corpus outcome, by withdrawal rate (₹50 lakh corpus, 8% return, 30-year horizon)
| Monthly withdrawal | Annual withdrawal rate | Outcome over 30 years |
|---|---|---|
| ₹25,000 | 6.0% | Grows to ₹1,74,19,662 |
| ₹30,000 | 7.2% | Grows to ₹99,67,865 |
| ₹35,000 | 8.4% | Shrinks to ₹25,16,068 |
| ₹40,000 | 9.6% | Depletes at 22.5 years |
| ₹50,000 | 12.0% | Depletes at 13.8 years |
The tipping point sits right around the 8% expected return itself — below it, the corpus is still net-growing even while paying out; cross meaningfully above it, and depletion isn’t a question of if but exactly when. This is the same underlying logic behind the “4% rule” often cited for retirement withdrawals — a withdrawal rate comfortably below your expected long-term return is what makes a corpus durable across decades, not the absolute rupee amount you’re withdrawing.
Why this matters more than the corpus size itself
Two retirees with wildly different corpus sizes but the same withdrawal rate face the same sustainability outcome — a ₹50 lakh corpus at a 6% withdrawal rate behaves identically, in percentage terms, to a ₹5 crore corpus at 6%. The corpus size determines how much you can spend in absolute rupees; the withdrawal rate determines whether that spending pattern is sustainable at all. Always check your rate before locking in a specific withdrawal amount.
Enter your own corpus, monthly withdrawal, expected return, and time period into our SWP Calculator to see exactly how long your corpus lasts, or whether it grows instead.
Frequently asked questions
›What is a safe withdrawal rate for SWP in India?
A commonly cited guideline is around 4% annually for a multi-decade retirement horizon, though the truly sustainable rate depends on your specific expected return — withdrawing meaningfully below your expected return keeps the corpus durable or even growing.
›Can an SWP corpus actually grow while you're withdrawing from it?
Yes — if your withdrawal rate is lower than your expected annual return, the growth on your remaining balance each month exceeds what you withdraw, so the corpus can increase over time even as you draw a steady income from it.
›Does SWP guarantee the expected return?
No — this calculator (and any SWP projection) assumes a fixed expected return for simplicity, but real mutual fund returns fluctuate year to year, so an SWP based on equity funds carries genuine risk of underperforming the assumption, especially in poor-return years early in the withdrawal period.
›Is SWP better than a fixed monthly income scheme?
SWP typically offers better long-term growth potential (if invested in equity or hybrid funds) compared to fixed-income options, but with real market-linked risk — a fixed scheme trades that growth potential for predictability, which suits different risk appetites.
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This article is for general information only and isn’t financial, tax, or legal advice. See our disclaimer.