SIP ₹1,000/Month for 15 Years: Real Returns
Most apps show you ₹5.05 L after 15 years on a ₹1,000/month SIP and stop there. Here's the complete picture: nominal corpus, real (inflation-adjusted) value, post-tax outcome, and conservative-to-optimistic return scenarios.
| Return Rate | Maturity | Wealth Gained | Real Value (6% inflation) | After-Tax Real Value |
|---|---|---|---|---|
| 10% | ₹4.18 L | ₹2.38 L | ₹1.74 L | ₹1.68 L |
| 12% (base) | ₹5.05 L | ₹3.25 L | ₹2.11 L | ₹2.00 L |
| 15% | ₹6.77 L | ₹4.97 L | ₹2.82 L | ₹2.62 L |
What You Invest vs What You Get
Over 15 years you contribute ₹1.80 L from your pocket (₹1,000 × 180 months). At a 12% CAGR that becomes ₹5.05 L, so compounding adds ₹3.25 L on top of what you put in. The longer you stay invested, the larger this gains-to-contribution ratio becomes.
The Number Apps Don't Show: Real Value
₹5.05 L in 15 years is not ₹5.05 L of today's purchasing power. After 6% average inflation, it buys what about ₹2.11 L buys today. That's still real growth: your money grows faster than prices, but the honest figure is the inflation-adjusted one, not the headline number.
Tax on Your Gains (LTCG)
Equity mutual fund units held over 12 months qualify for Long-Term Capital Gains tax: 12.5% on gains above the ₹1.25 lakh annual exemption (Income Tax Act 2025). On ₹3.25 L of gains, a one-shot redemption implies roughly ₹25,945 in LTCG tax, leaving about ₹4.79 L. Redeeming in tranches across financial years lets you use the ₹1.25 lakh exemption each year and can reduce this materially.
How to Improve This Outcome
₹1,000/month for 15 years. The main advantage at this stage is time. A small automatic contribution builds the investing habit while giving you experience with market rises and falls. If broad equity exposure suits your goal, time horizon, and risk tolerance, a low-cost index fund can keep the first portfolio simple.
- Step up the SIP. Raising ₹1,000 by 10% every year as your income grows beats a flat amount by a wide margin over 15 years.
- Stay the full tenure. The biggest compounding happens in the later years: stopping early forfeits most of the gains.
- Keep costs low. A direct-plan Nifty 50 index fund (0.1–0.2% expense ratio) preserves more of the 12% than a high-cost regular plan.
- Redeem in tranches. Spreading withdrawals across financial years uses the ₹1.25 lakh LTCG exemption repeatedly.
Frequently Asked Questions
How much will ₹1,000/month SIP give in 15 years?
What is the real (inflation-adjusted) value of ₹1,000 SIP after 15 years?
How much tax do I pay on a ₹1,000 SIP maturing in 15 years?
Is ₹1,000/month SIP enough?
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Written by Amir Khan, a contributor to RupeeReality: free financial calculators for Indian investors. All calculations use standard financial formulas cross-referenced against established platforms. Numbers updated for FY 2026-27. Not financial advice.