SIP ₹15,000/Month for 15 Years: Real Returns
Most apps show you ₹75.69 L after 15 years on a ₹15,000/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% | ₹62.69 L | ₹35.69 L | ₹26.16 L | ₹24.29 L |
| 12% (base) | ₹75.69 L | ₹48.69 L | ₹31.58 L | ₹29.01 L |
| 15% | ₹1.02 Cr | ₹74.53 L | ₹42.36 L | ₹38.39 L |
What You Invest vs What You Get
Over 15 years you contribute ₹27.00 L from your pocket (₹15,000 × 180 months). At a 12% CAGR that becomes ₹75.69 L, so compounding adds ₹48.69 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
₹75.69 L in 15 years is not ₹75.69 L of today's purchasing power. After 6% average inflation, it buys what about ₹31.58 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 ₹48.69 L of gains, a one-shot redemption implies roughly ₹6.17 L in LTCG tax, leaving about ₹69.52 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
₹15,000/month for 15 years. A SIP of this size works best when each part has a job: retirement, a child's education, or another dated goal. Review the target once a year, and consider raising the contribution when a salary increase leaves enough surplus after expenses and emergency savings.
- Step up the SIP. Raising ₹15,000 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 ₹15,000/month SIP give in 15 years?
What is the real (inflation-adjusted) value of ₹15,000 SIP after 15 years?
How much tax do I pay on a ₹15,000 SIP maturing in 15 years?
Is ₹15,000/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.