A flat monthly SIP beside the same SIP with one rise a year. You see the extra money you put in, the extra corpus, and the step-up that hits a goal. The maths is the SIP calculator. This page is the comparison.
The first year stays at this amount. It rises on each anniversary.
₹
₹500₹1.3 Lakh₹2.5 Lakh₹3.8 Lakh₹5 Lakh
The first year stays at this amount. It rises on each anniversary.
A 10% step-up on ₹10,000 makes the next year ₹11,000 a month.
0%6%13%19%25%
A 10% step-up on ₹10,000 makes the next year ₹11,000 a month.
The same return as the SIP page. It is a rate you type, not a fund's past return.
0.0%7.5%15.0%22.5%30.0%
The same return as the SIP page. It is a rate you type, not a fund's past return.
1 year11 years21 years30 years40 years
Used only to show the maturity in today's rupees. It does not raise the SIP.
0.0%4.0%7.5%11.5%15.0%
Used only to show the maturity in today's rupees. It does not raise the SIP.
Flat SIP against a step-up
₹1.99 Cr₹1.99 Cr
A flat ₹10,000 a month finishes at ₹99,91,479. With the step-up it finishes at ₹1,98,88,715. You put in ₹44,73,000 more, and the corpus is ₹98,97,236 higher.
Flat SIP
₹99,91,479₹99,91,479
₹24,00,000 put in
With step-up
₹1,98,88,715₹1,98,88,715
₹68,73,000 put in
Extra corpus
₹98,97,236₹98,97,236
₹44,73,000 of extra money put in
In today's rupees
₹68,16,439₹68,16,439
After 5.5% inflation, before tax
If this were an equity fund and you sold it in one year, the same tax reading as the SIP page comes to ₹16,79,654. The value after that tax is ₹1,82,09,061. It is an estimate, not your tax bill. The SIP page explains the 12.5% long-term rate, the ₹1.25 lakh exemption and the 20% short-term rate.
Flat SIP and the extra from a step-up
Flat SIPExtra from step-up
₹50 lakh₹2 cr₹1.5 cr₹1 cr₹50 lakh₹0
Yr 1Yr 7Yr 14Yr 20
Yr 1. Flat SIP ₹1,28,093. Extra from step-up ₹0. Balance ₹1,28,093.
Yr 2. Flat SIP ₹2,72,432. Extra from step-up ₹12,809. Balance ₹2,85,241.
Yr 3. Flat SIP ₹4,35,076. Extra from step-up ₹41,334. Balance ₹4,76,410.
Yr 4. Flat SIP ₹6,18,348. Extra from step-up ₹88,975. Balance ₹7,07,323.
Yr 5. Flat SIP ₹8,24,864. Extra from step-up ₹1,59,706. Balance ₹9,84,570.
Yr 6. Flat SIP ₹10,57,570. Extra from step-up ₹2,58,164. Balance ₹13,15,734.
Yr 7. Flat SIP ₹13,19,790. Extra from step-up ₹3,89,737. Balance ₹17,09,527.
Yr 8. Flat SIP ₹16,15,266. Extra from step-up ₹5,60,690. Balance ₹21,75,956.
Yr 9. Flat SIP ₹19,48,215. Extra from step-up ₹7,78,286. Balance ₹27,26,501.
Yr 10. Flat SIP ₹23,23,391. Extra from step-up ₹10,50,935. Balance ₹33,74,326.
Yr 11. Flat SIP ₹27,46,148. Extra from step-up ₹13,88,368. Balance ₹41,34,516.
Yr 12. Flat SIP ₹32,22,522. Extra from step-up ₹18,01,820. Balance ₹50,24,342.
Yr 13. Flat SIP ₹37,59,311. Extra from step-up ₹23,04,254. Balance ₹60,63,565.
Yr 14. Flat SIP ₹43,64,180. Extra from step-up ₹29,10,610. Balance ₹72,74,790.
Yr 15. Flat SIP ₹50,45,760. Extra from step-up ₹36,38,089. Balance ₹86,83,849.
Yr 16. Flat SIP ₹58,13,782. Extra from step-up ₹45,06,474. Balance ₹1,03,20,256.
Yr 17. Flat SIP ₹66,79,208. Extra from step-up ₹55,38,500. Balance ₹1,22,17,708.
Yr 18. Flat SIP ₹76,54,392. Extra from step-up ₹67,60,271. Balance ₹1,44,14,663.
Yr 19. Flat SIP ₹87,53,254. Extra from step-up ₹82,01,737. Balance ₹1,69,54,991.
Yr 20. Flat SIP ₹99,91,479. Extra from step-up ₹98,97,236. Balance ₹1,98,88,715.
A step-up SIP is a monthly SIP that rises once a year. The first year stays at the amount you type. On each anniversary the monthly amount goes up, by a percent or by a fixed number of rupees. Each month the calculator adds the instalment at the start of the month, then one month of growth. That is the same engine as the SIP calculator, which is the place for a single SIP, the formula, and the tax notes.
The return is a rate you type. It is not a fund’s past return. Inflation is used only to show the maturity in today’s rupees. It does not raise the SIP unless you set a step-up.
A flat SIP and a 10% step-up
₹10,000 a month, 12% a year, 20 years, no step-up. You put in ₹24,00,000. The maturity is ₹99,91,479.
The same SIP with a 10% rise once a year finishes at ₹1,98,88,715, from ₹68,73,000 put in. You invest ₹44,73,000 more. The corpus is ₹98,97,236 higher. At 5.5% inflation, the step-up maturity is about ₹68,16,439 in today’s rupees, before tax.
A pay rise is the usual reason to step up. If your salary rises about 10% a year, a 10% step-up keeps the SIP at a similar share of pay. The in-hand salary calculator shows what lands in the account before you pick that share. A rupee step-up is simpler when you know the extra amount, for example ₹1,000 more a month each year.
The step-up for a goal
Switch the form to Goal. For ₹10,000 a month at 12% over 20 years, a corpus of ₹2,00,00,000 needs a step-up of 10.1% a year. The search rounds the percent up to the nearest 0.1. If the flat SIP already reaches the goal, the answer is no step-up.
If this example were an equity fund and you sold it in one year, the same tax reading as the SIP page comes to ₹16,79,654 on the 10% step-up. The SIP page has the rules. A one-time investment is the lumpsum calculator. The SIP versus lump sum guide is the comparison in words. A retirement target is the FIRE calculator. More saving tools are on saving and investing.
What this page leaves out
The return stays the same every month. A real fund price moves. Exit load and the fund’s costs are not added on top, so type the return you expect after costs. Tax is not taken out of the fund each year. This is an estimate for learning, not advice. Read the disclaimer.
Questions
Is a percent step-up different from a rupee step-up?
A percent step-up raises the monthly SIP by that percent of whatever you are paying that year. The rise gets bigger as the SIP gets bigger. A rupee step-up adds the same rupees to the monthly SIP once a year. The first year stays at the amount you typed, in both cases.
What if I pause the SIP?
This page assumes every instalment is paid. A missed month is not modelled. The yearly rise still happens on the anniversary of the start, whether or not your pay went up that year.
Where are the tax rules?
They are the same reading as the SIP calculator. The tax line assumes an equity fund, sold in one year. It is an estimate, not your tax bill. The SIP page explains the long-term rate, the exemption, and the short-term rate.
A SIP and a lump sum at the same yearly rate, worked on Finfod’s SIP and CAGR calculators. When the lump sum finishes ahead, and when that answer is useless.
