Cost of Delaying SIP Calculator

Investment

Putting off your SIP by a few years feels harmless, but those early years are the ones that compound the longest. See exactly how much corpus a delay costs you.

Free · No sign-up · Private6 min readUpdated 27 July 2026

In short: The cost of delaying a SIP is the corpus you lose by starting late instead of now: the future value of the same monthly investment over the full horizon minus its future value over the shorter, post-delay period.

Your inputs

Results

Cost of the delay

₹89,84,872

Corpus you forfeit

Corpus if you start now

₹1,89,76,351

25 yrs invested

Corpus if you delay

₹99,91,479

20 yrs invested

Extra you invest by starting now

₹6,00,000

5 yrs of instalments

AI insights

You put in ₹6,00,000 and it grows to ₹89,84,872 — about 15.0× your money, with ₹83,84,872 earned on top.
Roughly 93% of the final value is growth, not your own contributions — the compounding is doing the heavy lifting.
Staying invested longer, or stepping the amount up each year, tilts this even further in your favour.

Starting now vs starting late

How the two corpuses diverge — the gap widens every year you wait.

Year-wise gap

Year-wise gap
Year	Start now	Start late	Gap
1	₹1,28,093	₹0	₹1,28,093
2	₹2,72,432	₹0	₹2,72,432
3	₹4,35,076	₹0	₹4,35,076
4	₹6,18,348	₹0	₹6,18,348
5	₹8,24,864	₹0	₹8,24,864
6	₹10,57,570	₹1,28,093	₹9,29,477
7	₹13,19,790	₹2,72,432	₹10,47,358
8	₹16,15,266	₹4,35,076	₹11,80,189
9	₹19,48,215	₹6,18,348	₹13,29,867
10	₹23,23,391	₹8,24,864	₹14,98,527

The delayed SIP contributes nothing until the delay ends, then compounds for fewer years.

Formula

Cost of delay = FV(full horizon) − FV(horizon − delay)

FV: Future value of the monthly SIP for a given number of years
P: Monthly investment amount
Horizon: Years until your goal if you start today
Delay: Years by which you postpone starting

Step-by-step calculation

Worked with the default values.

1
Corpus if you start now
SIP(₹10,000, 12%, 25 yrs)
= ₹1,89,76,351
2
Corpus if you delay
SIP(₹10,000, 12%, 20 yrs)
= ₹99,91,479
3
Cost of the delay
Corpus if you start now − Corpus if you delay
= ₹89,84,872
4
Extra invested by starting now
₹10,000 × 12 × 5 yrs
= ₹6,00,000
5
Corpus lost per extra rupee invested early
₹89,84,872 ÷ ₹6,00,000
= 15×

How it works

It projects two corpuses for the same monthly SIP: one that starts today and runs for the full horizon, and one that starts after your chosen delay.
The delayed SIP invests for fewer years, so it not only skips those contributions but — more importantly — loses the longest compounding periods.
The difference between the two corpuses is the cost of the delay, which you can compare against the modest extra amount you would have invested by starting now.

Examples

₹10,000/month at 12% for 25 years vs starting 5 years late

Starting now grows to about ₹1.9 crore; delaying 5 years drops it to roughly ₹1.0 crore — a cost of nearly ₹90 lakh for just ₹6 lakh of skipped contributions.

₹5,000/month at 12% for 30 years vs starting 3 years late

The three-year delay costs well over ₹40 lakh of final corpus, far more than the ₹1.8 lakh you would have invested in those years.

Understanding the Cost of Delaying SIP Calculator

The hidden price of "I'll start next year"

Delaying a SIP feels costless. You will invest the same amount, just a little later, so surely you only lose the instalments you skipped? Compounding says otherwise. The years you skip when you delay are your earliest years — and early money is the money that compounds the longest. Removing it from the front of your horizon strips out the most valuable growth, not the least.

Consider a ₹10,000 monthly SIP at an assumed 12% for a 25-year goal. Start today and it grows to roughly ₹1.9 crore. Wait five years and start with 20 years left, and the same SIP reaches only about ₹1.0 crore. You skipped ₹6 lakh of contributions — but you lost close to ₹90 lakh of final corpus. The delay cost roughly fifteen times what you "saved" by not investing.

Why the early years matter most

Under compounding, each year multiplies an ever-larger base. The last few years of a long SIP add the biggest rupee gains because they act on the largest accumulated amount. When you delay, you do not lose those final high-growth years directly — you lose years from the front, which pushes the whole schedule shorter and removes the compounding tail from the end. The result is a corpus that is smaller by far more than the missing contributions.

What the calculator shows

Two paths are projected side by side:

Start now — the SIP runs for the full horizon.
Start late — the SIP sits at zero through the delay, then compounds for the remaining years.

The year-wise chart makes the divergence visible: the two lines track each other's shape, but the delayed line starts later and never catches up, and the gap between them widens every single year.

The takeaway

Time in the market beats the size of your instalments. A small SIP begun today usually outperforms a larger one begun a few years from now. If you genuinely must wait — to clear high-interest debt or build an emergency fund — do so deliberately and set a firm start date. But treating "the market isn't right yet" as a reason to postpone is one of the most expensive habits in personal finance, and this calculator puts a number on exactly how expensive.

Pros

Makes the abstract idea of "start early" concrete with a rupee figure you can feel.
Shows that the cost of waiting is many times the contributions you skip.
Helps you weigh a delay against genuine priorities like clearing costly debt.
Useful for nudging younger investors to begin with even a small amount today.
Reframes market-timing hesitation as an expensive, quantifiable habit.

Cons

Assumes a constant return; real returns fluctuate and could narrow or widen the gap.
Ignores that a delay might let you invest a larger amount later, which softens the loss.
Does not account for cash-flow realities that sometimes make an early start impractical.

Tips

1Start with whatever you can afford today rather than waiting to afford the "ideal" amount.
2If you must delay, set a fixed calendar date to begin so the delay does not drift indefinitely.
3Automate the SIP the day after payday so starting now does not depend on willpower each month.
4If you have already delayed, raise your monthly amount and add an annual step-up to help close the gap.
5Clear high-interest debt in parallel, but do not let it become an excuse to postpone investing entirely.

Frequently asked questions

Everything you need to know about the Cost of Delaying SIP Calculator.

Why does a short delay cost so much?

Because the years you skip are your earliest — and earliest money compounds the longest. Under compounding, the final few years multiply an already-large base, so removing years from the front of the horizon removes the most valuable growth, not the least.

Is the cost really larger than the contributions I skip?

Yes, usually by many times. Delaying five years of a ₹10,000 SIP skips ₹6 lakh of contributions but can cost close to ₹90 lakh of final corpus. The lost compounding dwarfs the saved instalments.

Can I make up for a delay by investing more later?

Partly, but it takes a much larger amount. To catch up, you typically need to step up your monthly SIP substantially, and even then you rarely fully recover the compounding you lost by starting late.

Does the return rate change how costly a delay is?

Strongly. The higher the assumed return, the more punishing a delay, because each lost year would have compounded at a steeper rate. At low returns the gap narrows; at equity-like returns it can be enormous.

What if I delay but keep the same goal date?

That is exactly what this calculator models — the goal date is fixed, so a delay simply shortens your investing window. You either accept a smaller corpus or raise your monthly amount to hit the same target.

Is it ever sensible to delay a SIP?

Rarely for investment reasons. It can make sense to first clear high-interest debt or build an emergency fund, but "waiting for the market to be right" almost always costs more than it saves.

How is the delayed corpus calculated?

The same SIP formula is applied over the shorter post-delay period (horizon minus delay). Until the delay ends the invested value is zero; after that it compounds monthly for the remaining years.

Are these figures guaranteed?

No. They assume a constant annual return for estimation. Real mutual fund returns vary year to year, but the core lesson — that early years matter most — holds across any positive return.

Does starting a small SIP now beat waiting to start a big one?

Almost always. A modest SIP begun today usually outperforms a larger SIP begun several years later, because time in the market outweighs the size of instalments over long horizons.

How do taxes affect the comparison?

Both paths face the same capital-gains rules, so tax does not change the conclusion. Equity fund gains held over a year are long-term and taxed at 12.5% above the ₹1.25 lakh annual exemption; the larger on-time corpus simply produces more after-tax wealth.

Methodology & sources

How the Cost of Delaying SIP Calculator is calculated, and where the underlying rules come from.

How we calculate it

Every result is produced by a single, shared and tested financial-formula library used across the whole site — so the maths is consistent from one calculator to the next. Figures are estimates based on the inputs you enter and standard assumptions (such as regular compounding and constant rates); real-world outcomes vary with taxes, fees and changing rates. All calculations run in your browser — nothing you type is stored or sent to a server.

Sources & references

Editorial policy & disclaimer. FinCalcHub provides free educational tools and estimates — not personalised financial, tax or investment advice. Verify important decisions with a qualified professional. Read our editorial approach, disclaimer and privacy policy.

Last reviewed for accuracy on 27 July 2026.

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