Lump Sum Calculator
Calculate one-time mutual fund investment returns and compounded future value.
- Runs entirely in your browser
- No sign-up, nothing stored
- Formula explained below
Plan your investment
Adjust the sliders or type exact values.
You invest ₹1,00,000 once; compounding at 12% adds ₹2,10,585.
- Invested32%
- Returns68%
How your money grows
Value at the end of each year, split into what you put in and what compounding added.
- Invested
- Returns
Growth earned each year
Each year's gain is larger than the last because it compounds on a bigger base.
Return rate vs. time
Projected value of ₹1,00,000 invested once. Shading runs from least to most wealth (scale below).
| Return ↓ · Years → | 5y | 10y | 15y | 20y | 25y | 30y |
|---|---|---|---|---|---|---|
| 8% | ||||||
| 10% | ||||||
| 12% | ||||||
| 14% | ||||||
| 16% |
How Lump-Sum Compounding Works
A lump-sum investment puts capital to work all at once. Every rupee compounds on an ever-expanding base year after year — the classic compound interest curve.
- A
- Final accumulated value after t years
- P
- Initial lump-sum principal invested
- r
- Annual compounding return rate ÷ 100
- t
- Total investment duration in years
Step-by-Step Example: ₹5,00,000 Lump-Sum for 15 Years
Suppose you deploy a one-time lump sum of ₹5,00,000 into an equity index fund compounding at 12% per annum over 15 years:
- Principal Invested: ₹5,00,000 (Day 1)
- Estimated Maturity Value: ₹5,00,000 × (1 + 0.12)¹⁵ = ₹27,36,783 (₹27.37 Lakhs)
- Net Capital Appreciation: ₹22,36,783 (Over 5.4× your original investment)
The Power of Rupee Cost Averaging
One of the greatest hazards in retail investing is market timing — attempting to buy at market bottoms and sell at peaks. Rupee Cost Averaging (RCA) removes emotional bias:
During Market Corrections
When equity markets drop, your fixed monthly allocation automatically purchases more mutual fund units at discounted Net Asset Values (NAVs).
During Bull Rallies
When markets rally and valuations climb, the same fixed monthly amount automatically purchases fewer units, protecting you from overpaying.
Mutual Fund Taxation Rules (Union Budget Framework)
Capital gains realized from mutual fund redemptions are subject to the revised Indian Income Tax provisions:
- • Equity-Oriented Mutual Funds (>65% Equity):Long-Term Capital Gains (held > 12 months) are exempt up to ₹1.25 Lakh per financial year; gains beyond this threshold are taxed at 12.5% (without indexation). Short-Term Capital Gains (held ≤ 12 months) are taxed at 20%.
- • Debt Mutual Funds (<35% Equity):Capital gains on debt funds acquired on or after April 1, 2023 are treated as short-term capital gains and taxed at your applicable slab rate, regardless of holding period.
- • The FIFO Principle:Redemptions follow First-In, First-Out (FIFO). In a monthly SIP, each individual instalment must complete 365 days of holding to qualify for long-term equity capital gains rates.
Frequently Asked Questions
Are SIP mutual fund returns guaranteed?
What is the difference between Direct and Regular mutual fund plans?
Can I pause, stop, or increase my SIP anytime?
What happens if my bank account lacks sufficient balance on the SIP debit date?
Why does the SIP formula multiply by (1 + i)?
Is an SIP better than a Fixed Deposit (FD) or Recurring Deposit (RD)?
Should I stop my SIP during a stock market crash?
How does inflation affect my final SIP maturity corpus?
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