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SIP Calculator: ₹20,000 for 15 Years vs ₹15,000 for 20 Years; Which Plan Works Better?

Written by: Neha DubeyUpdated on: 6 Nov 2025, 9:14 pm IST
Both SIP options serve different objectives. ₹20,000 for 15 years suits focused medium-term goals, while ₹15,000 for 20 years fits long-term financial planning.
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When planning long-term investments, one common dilemma investors face is whether to contribute a higher amount for a shorter period or a smaller amount for a longer duration.

 Both approaches involve disciplined monthly contributions, but the outcomes can differ significantly due to the effect of compounding over time.

When we plug in the numbers using a SIP Calculator, the results are as follows:

Scenario 1: ₹20,000 per Month for 15 Years

If an investor contributes ₹20,000 every month for 15 years at an assumed annual return of 12%, the total investment will amount to ₹36,00,000.

 At the end of the 15-year period, the estimated value of the investment would be around ₹1,00,91,520, generating estimated returns of ₹64,91,520.

This option involves a higher monthly contribution, which accelerates the growth initially, but the shorter tenure limits the compounding effect.

Scenario 2: ₹15,000 per Month for 20 Years

Alternatively, if the same investor chooses to invest ₹15,000 per month for 20 years with a 12% expected annual return, the total invested amount remains the same ₹36,00,000.

 However, the estimated value after 20 years would be ₹1,49,87,219, leading to estimated returns of ₹1,13,87,219.

This approach benefits from a longer compounding period, allowing the investment to grow steadily even with a smaller monthly contribution.

Comparing the Two Approaches

ParametersOption 1: ₹20,000 for 15 YearsOption 2: ₹15,000 for 20 Years
Monthly Investment₹20,000₹15,000
Duration15 Years20 Years
Total Investment₹36,00,000₹36,00,000
Estimated Value (at 12%)₹1,00,91,520₹1,49,87,219
Estimated Returns₹64,91,520₹1,13,87,219

The second option, with a longer duration, results in a higher final corpus despite the lower monthly contribution, mainly due to the extended compounding period.

Key Takeaways

  • Both SIP strategies can help achieve financial goals, but they cater to different investment horizons and objectives.
  • The ₹20,000-for-15-years plan may suit individuals with a higher income and specific medium-term goals, such as funding education or home purchase.
  • The ₹15,000-for-20-years plan may fit those seeking gradual growth over a longer period, such as planning for retirement or a child’s future.
  • The difference in outcomes highlights the impact of compounding longer durations often amplify growth even with smaller monthly amounts.
  • Using a SIP Calculator helps investors visualise potential returns and adjust contributions or tenure according to their financial targets.

Read More: SIP Calculator: Estimate Returns on ₹23,000 Monthly Investment Over 5 Years.

Conclusion

Both SIP approaches have their own merits and are designed for different investor needs. The choice between a higher short-term commitment or a lower long-term contribution depends on factors like income stability, financial goals, and investment horizon.

 

Disclaimer: This blog has been written exclusively for educational purposes. The securities mentioned are only examples and not recommendations. It is based on several secondary sources on the internet and is subject to changes. This does not constitute a personal recommendation/investment advice. It does not aim to influence any individual or entity to make investment decisions. Recipients should conduct their own research and assessments to form an independent opinion about investment decisions.

Mutual Fund investments are subject to market risks, read all scheme-related documents carefully.

Published on: Nov 6, 2025, 3:42 PM IST

Neha Dubey

Neha Dubey is a Content Analyst with 3 years of experience in financial journalism, having written for a leading newswire agency and multiple newspapers. At Angel One, she creates daily content on finance and the economy. Neha holds a degree in Economics and a Master’s in Journalism.

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