SIP Annual Increase Calculator
SIP with annual step-up contributions.
Project SIP (systematic investment plan) with annual step-up in monthly contributions. Enter starting monthly and increase to see final pot.
What this tool does
This calculator models the growth of a systematic investment plan where your monthly contribution increases by a fixed percentage each year. It compounds your rising contributions across your chosen timeframe, factoring in your expected return rate. The result shows your projected portfolio value at the end of the period. Your starting monthly amount, annual increase percentage, and expected return rate are the primary drivers of the outcome. For example, someone beginning with modest monthly deposits and gradually raising them over five to ten years can see how compounding works on an expanding contribution base. The calculation assumes consistent monthly payments, regular annual step-ups, and a steady return rate applied uniformly across the period. It does not account for taxes, fees, market volatility, or timing of deposits within each month. This tool illustrates mathematical projections for educational purposes only.
Enter Values
People also use
Investing
Compound Interest Calculator
Free compound interest calculator with deposits, escalation, after-tax and inflation-adjusted projections, time-to-double, and a sortable monthly or yearly breakdown.
Investing
Wealth Building Rate Calculator
Calculate projected annual wealth growth from your savings rate and expected investment returns, projected at 1, 5, and 10 year horizons.
Investing
100 Minus Age Asset Allocation Calculator
Calculate stock-vs-bond allocation using the 100-minus-age rule of thumb — see the suggested percentage split for any age you put in.
Formula Used
Spotted something off?
Calculations or display — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
500/month growing 10% yearly for 20 years at 8% return: starts at 500, ends at 2,880/month, final pot 720,000. Annual step-ups mirror salary growth — keeps saving rate steady as income rises. Beats flat contribution by 40-60% over 20 years.
Quick example
With starting monthly of 500 and annual increase of 10% (plus years of 20 and expected return of 8%), the result is 659,349.89. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.
Which inputs matter most
You enter Starting Monthly, Annual Increase %, Years, and Expected Return.
What's happening under the hood
Simulate month-by-month with annual step-up. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.
Where this fits in planning
This is a "what-if" tool, not a forecast. Use it to test ideas before committing: what happens if the rate is 2% lower than hoped, what happens if you add five more years. The value is in the scenarios you run, not the single answer you get from the defaults.
What this doesn't capture
Steady-rate math ignores real-world volatility. Actual returns are lumpy; sequence-of-returns risk matters most in drawdown; fees and taxes drag on compound growth; and behaviour changes in drawdowns can reduce outcomes below the projection. The number represents one scenario rather than a forecast.
Where to go next
This calculation rarely sits alone in a planning exercise. If you're running these numbers, you'll probably also want the compound interest calculator, the wealth building rate calculator, and the mutual fund sip calculator — each one answers a different question in the same territory. Treating them as a set rather than in isolation usually produces a more honest picture.
With a starting monthly contribution of £500 increased 10% annually over 20 years at 8% expected return, your portfolio reaches 659,349.89.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
This calculator models a systematic investment plan with annual contribution increases through month-by-month simulation. It compounds returns at the expected annual rate, applied monthly, on the accumulated balance. Each year, the monthly contribution amount rises by the specified percentage, effective from the anniversary of the start date. The simulation treats the annual return as constant and applies it uniformly across all months, assuming no interim withdrawals, fees, or tax effects. Results reflect the growth of contributions plus compound returns under these steady-state conditions. Actual outcomes may differ based on market volatility, variable returns, timing of contributions, and any applicable costs or levies not modelled here.
References
Frequently Asked Questions
Realistic 10% annual increase?
Benefit vs flat?
Commonly used by young investors?
How to implement?
Related Calculators
Compound Interest Calculator
Free compound interest calculator with deposits, escalation, after-tax and inflation-adjusted projections, time-to-double, and a sortable monthly or yearly breakdown.
Wealth Building Rate Calculator
Calculate projected annual wealth growth from your savings rate and expected investment returns, projected at 1, 5, and 10 year horizons.
More Investing Calculators
Investing
100 Minus Age Asset Allocation Calculator
Calculate stock-vs-bond allocation using the 100-minus-age rule of thumb — see the suggested percentage split for any age you put in.
Investing
Active vs Passive Investing Calculator
Compare active and passive investment strategies accounting for fees across long horizons — the wealth gap from a percentage point of fee drag.
Investing
Annuity Present Value Calculator
Calculate the present value of an ordinary annuity from regular payments, periodic rate, and the number of periods until the stream ends.
Investing
APR to APY Calculator
Convert APR to APY for any compounding frequency to see the true effective annual yield — what you actually earn (or pay) on a given quoted rate.
Investing
Art Investment Calculator
Calculate art investment net returns including insurance and carrying costs, given purchase price, current value, and length of holding period.
Investing
Asset Allocation Calculator
Calculate suggested portfolio asset allocation by age and risk tolerance (stocks/bonds/cash). Enter risk tolerance 1-10 to see suggested stock and bond.
Explore Other Financial Tools
Psychology & Behavioral
Loss Aversion Cost Calculator
Calculate the hidden cost of avoiding small losses by missing larger potential gains. Enter gain probability and potential loss to see expected value forfeited.
Digital Nomad & Freelance
Agency Margin Calculator
Compute agency gross and net margin from revenue, contractor costs, and overhead. Returns net margin, gross profit, net profit, and gross margin in one view.
Lifestyle
Dog Annual Cost Calculator
Annual and lifetime dog ownership cost across food, vet, insurance, grooming, daycare, and training — the all-in figure for the dog's lifespan.