STP calculator
Move money from one fund to another in instalments.
Your inputs
What to transfer
About 10 monthly transfers.
Advanced settings
How the yearly return is applied
Most apps divide the yearly return by 12, which shows about 3.5% more over 10 years. We use the effective rate by default, so 12% means 12% a year.
Payment timing
Adjusts for inflation so you can see real purchasing power.
Capital-gains tax if you redeem everything at the end (tax year 2026-27 rules).
Results
Generated on 11 Oct 2026
Your inputs
| Amount in source fund | ₹10,00,000 |
|---|---|
| What to transfer | Fixed amount |
| Monthly transfer | ₹1,00,000 |
| Source fund return (per year) | 6.5% |
| Target fund return (per year) | 12% |
| Time period | 3 years |
| How the yearly return is applied | Effective (12% = 12% a year) |
| Payment timing | Start of month |
| Inflation (per year) | 6% |
| Show values in today's money | ✓ |
| Show value after tax | — |
Total value
₹13,78,260
- Amount invested
- ₹10,00,000
- Estimated gains
- ₹3,78,260
- Total transferred
- ₹10,24,479
- Left in source fund
- ₹0
- Value in target fund
- ₹13,78,260
- Value in today's money
- ₹11,57,214
- After 6% yearly inflation
- Transfers end after (months)
- 11 months
- Left in source fund₹0(0%)
- Value in target fund₹13,78,260(100%)
See how a different amount, return or period changes the result, side by side.
Year-by-year breakdown
| Year | Transferred in year | Left in source fund | Value in target fund | Total value | In today's money |
|---|---|---|---|---|---|
| 1 | ₹10,24,479 | ₹0 | ₹10,98,740 | ₹10,98,740 | ₹10,36,548 |
| 2 | ₹0 | ₹0 | ₹12,30,589 | ₹12,30,589 | ₹10,95,220 |
| 3 | ₹0 | ₹0 | ₹13,78,260 | ₹13,78,260 | ₹11,57,214 |
Month-by-month schedule
Assumptions and method
Formula
- Fixed: transfer T each month until the source runs out
- Capital appreciation: transfer = max(0, B − B₀)
- Each fund grows at its own monthly rate i
Conventions used
- Monthly rate: i = (1 + r)^(1/12) − 1 (Effective (12% = 12% a year))
- Money moves at the start of each month, so an instalment earns that month's return.
Modelling notes
- Transfers ₹100000 a month until the source fund runs out.
- Transfers are invested in the target fund in the same month with the same timing.
Not included
- Market ups and downs: the same return is assumed every month.
- Expense ratio, exit load and stamp duty, unless your expected return already allows for them.
- Income tax on gains (turn on the post-tax option to estimate it).
This is an illustration based on the return you entered. Actual returns vary and may be lower or negative.
Mutual fund investments are subject to market risks, read all scheme related documents carefully.
How it works
A Systematic Transfer Plan (STP) moves money in instalments from one fund (usually a liquid or debt fund) to another (usually an equity fund). It is a way to invest a lumpsum gradually while the waiting money still earns a return.
With a fixed STP, the same amount moves every month until the source fund runs out. With a capital-appreciation STP, only the gain above your original amount moves each month.
Frequently asked questions
Is an STP transfer taxed?
Yes. Each transfer is a redemption from the source fund, so gains on the units sold are taxed. Turn on post-tax to estimate it.
How long should an STP run?
Commonly 6 to 12 months for deploying a lumpsum into equity. Longer periods reduce entry-timing risk but keep more money in the lower-return fund.
What return should I assume?
Use a figure you would be comfortable with if markets disappoint. For diversified equity funds over 10+ years, 10–12% a year is a common planning assumption; debt funds 6–7%. Returns are not fixed, can be negative over short periods, and past performance may or may not be sustained in future.