A goal that costs ₹50 lakh today will cost about ₹1.2 crore in 15 years if prices rise 6% a year.
A systematic investment plan of ₹10,000 a month at 12% a year grows to about ₹47.6 lakh in the period, which seems close to ₹50 lakh but actually buys only what about ₹19.9 lakh buys today.
How much to invest in a SIP to beat rising costs depends on three numbers: the goal in today’s money the years left and the return the money earns after inflation.
A SIP that ignores inflation tends to fall short. The gap is largest for long goals such as retirement and children’s education.
What “beating inflation” means
| Return | Inflation | Real return (gain in purchasing power) |
|---|---|---|
| 8% | 6% | About 1.9% |
| 10% | 6% | About 3.8% |
| 12% | 6% | About 5.7% |
A fixed deposit at 7% taxed at the 30% slab with 4% cess earns about 4.8% after tax, which is below 6% inflation so the purchasing power of the money falls even though the balance rises.
Equity funds have historically earned more than inflation over periods although the returns are not guaranteed and can be negative for years at a time.
What a ₹10,000 SIP is worth in today’s money
| Assumed return | Value after 15 years | Value in today’s money (6% inflation) |
|---|---|---|
| 8% | About ₹34 lakh | About ₹14.2 lakh |
| 10% | ₹40.2 lakh | About ₹16.8 lakh |
| 12% | About ₹47.6 lakh | About ₹19.9 lakh |
The returns are assumptions for illustration and not forecasts.
The “today’s money” column divides the value by 1.06 raised to the power of 15 which is about 2.4.
How much to invest for a goal of ₹50 lakh in today’s money
| Step | What happens |
|---|---|
| 1. Fix the goal in today’s money | ₹50 lakh. |
| 2. Raise it for inflation | at 6% for 15 years the goal becomes about ₹1.2 crore. |
| 3. Assume a return | the return a SIP earns, such as 8%, 10% or 12% a year with the lower values being the planning choice. |
| 4. Work out the amount | the monthly SIP that grows to ₹1.2 crore in 15 years at that return. |
| 5. Review each year | compare progress and inflation with the plan and adjust the amount. |
| Assumed return | Fixed monthly SIP needed | Starting SIP with a 10% yearly step‑up |
|---|---|---|
| 8% | About ₹35,300 | About ₹19,100 |
| 10% | ₹29,800 | About ₹16,600 |
| 12% | ₹25,200 | About ₹14,500 |
A fixed SIP needs a large monthly amount from day one while a SIP that rises by 10% every year starts at roughly half the amount.
The step‑up works because income usually grows over 15 years and it keeps the investment in line with rising costs.
Ways to keep a SIP ahead of inflation
| Approach | How it helps | Trade-off |
|---|---|---|
| Step‑up SIP | Raises the amount every year in line with income | Needs a rise in income to stay comfortable |
| Equity allocation for long goals | Gives the best chance of a real return over ten years or more | Values can fall sharply in the short term |
| Debt for goals under three years | Protects the amount close to the goal date | Real returns can be low after tax |
| Regular review | Resets the target when costs rise faster than assumed | Takes a few minutes each year |
| Conservative return assumption | Builds a cushion if returns are lower | The required monthly amount is higher |
What investors should take from this
The monthly SIP amount needed to beat inflation is much larger than the amount that looks adequate in today’s rupees.
Planning with the goal inflated to its cost a return assumption below the hopeful case and a yearly step‑up gives a plan that holds up when prices rise faster than expected.
Kuvera offers mutual funds and its calculators help test different SIP amounts, against a goal.
Frequently Asked Questions
1. How much SIP is needed to beat inflation?
The answer depends on the goal the number of years. The return. If you want ₹50 lakh in today’s money in 15 years while inflation is 6% you would need to invest about ₹25,200 each month if you earn a 12% return or about ₹29,800 if the return is 10%.
2. Does a SIP beat inflation?
A SIP that invests in equity funds can outgrow inflation over periods but the returns are not guaranteed. A SIP that invests in debt funds may only keep up with inflation once taxes are taken into account.
3. What is a step‑up SIP?
A step‑up SIP is a plan where the monthly amount goes up by a fixed amount or a fixed percentage each year. This type of SIP works well if your income grows over time.
4. What inflation rate should be used for planning?
Many planners use 6% as a general rate. For items that rise faster such as education and healthcare a higher rate may be used. It is an idea to review this assumption every year.
5. How often should the SIP amount be reviewed?
Review the SIP at once a year. Compare the progress with the goal that has been increased for inflation and adjust the amount or the time horizon if needed. Remember that mutual fund investments carry market risk. Read all scheme related documents carefully. The returns shown here are assumptions, for illustration and are not forecasts.
