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Step-up SIP Calculator
SIP with an annual increase in contribution — the realistic way to invest as income grows.
InvestingInputs
Results
Formula
- Aᵧ = A₀ × (1 + step)^(y−1) for year y
- Each year's 12 instalments are compounded for the remaining months
- FV = Σᵧ Σₘ Aᵧ × (1 + i)^(N − k)
- N = total months, k = month index of the instalment
A flat SIP loses purchasing power every year; a step-up SIP raises the instalment annually so contributions track income. The engine walks month by month, applying the stepped amount for that year and compounding each contribution for the months that remain. Because later contributions are larger but compound for less time, the step-up mainly boosts the middle of the corpus curve — typically 35–60% more than a flat SIP over 15 years at a 10% step.
Step-by-step Calculation
- 1.Monthly return
12/12/1000.010000 - 2.Year-1 monthly SIP
A₀₹15,000 - 3.Year-15 monthly SIP
A₀ × (1 + 10%)^14₹56,962 - 4.Total contributed
Σ monthly contributions₹5,719,047 - 5.Compounded corpus
Σ Aᵧ × (1+i)^(N−k)₹13,025,774
Corpus growth by year
192,140Y1
427,862Y2
714,615Y3
1,060,984Y4
1,476,856Y5
1,973,601Y6
2,564,291Y7
3,263,933Y8
4,089,751Y9
5,061,489Y10
6,201,774Y11
7,536,512Y12
9,095,348Y13
10,912,185Y14
13,025,774Y15
Final value
₹13,025,774
Peak
Y15 · ₹13,025,774
Periods shown
15
Assumptions
- • The step-up is applied once at the start of each new year.
- • Return is constant across the whole horizon.
- • Contributions are made at the start of each month.
Money Tips
- ◆A 10% annual step-up roughly matches typical salary growth and keeps the plan painless.
- ◆Automate the step-up with your AMC so it does not depend on willpower.
Warnings
- ▲Do not step up beyond sustainable cashflow — a paused SIP costs more than a smaller one.
References & Standards
SEBI disclosure normsAnnuity-due with geometric escalation
Results are planning estimates generated in your browser. Nothing you enter is uploaded or stored. Verify material decisions with your lender, adviser or chartered accountant.