Cost of Delay in SIP Calculator 2026

See the exact compounding wealth loss and higher catch-up SIP required if you postpone your mutual fund investments.

SIP Investment & Delay Parameters

Planned Monthly SIP Amount (₹)

Expected Annual Return (% CAGR)

Target Investment Horizon (Years)

Yrs

Delay Period in Starting SIP (Months)

Total Wealth Lost Forever

₹6.82 L

13.5% reduction in total maturity corpus

If Started Today

₹50.46 L

Invested: ₹18.00 L

After 12 Mo Delay

₹43.64 L

Invested: ₹16.80 L

How Much Extra SIP is Needed to Catch Up?

₹11,562 / mo

Requires ₹1,562/mo extra to match the original ₹50.5 Lakhs goal.

Corpus Loss Across Delay Timeframes

Delay Scenario	Maturity Value	Compounding Loss	Catch-Up SIP Needed
0 Months (Started Today)	₹50.46 L	₹0 (Zero Loss)	₹10,000/mo
6 Months Delay	₹46.95 L	₹3.51 L	₹10,748/mo
1 Year Delay	₹43.64 L	₹6.82 L	₹11,562/mo
2 Years Delay	₹37.59 L	₹12.86 L	₹13,422/mo
3 Years Delay	₹32.23 L	₹18.23 L	₹15,658/mo
5 Years Delay	₹23.23 L	₹27.22 L	₹21,717/mo

Year-by-Year Growth Curve: Started Today vs Delayed Start

The Compounding Math Behind SIP Cost of Delay

In equity compounding, over 75% of your final wealth is generated in the final quartile of your investment horizon. However, that exponential surge relies entirely on the compounding foundation built by your earliest installments. Delaying by 1 year does not merely cost you 12 missed installments — it permanently erases 15 years of uninterrupted compound interest on those crucial starter contributions.

Frequently Asked Questions — SIP Cost of Delay

How much wealth do you lose by delaying a SIP by just one year?

For a ₹10,000 monthly SIP at 12% over 15 years, a one-year delay cuts the final corpus from about ₹50.5 lakh to ₹43.6 lakh — a loss of roughly ₹6.8 lakh. You only skipped ₹1.2 lakh of instalments; the other ₹5.6 lakh is compounding you can never buy back, because the earliest instalments are the ones with the longest runway.

Can I make up for a late start by investing more each month?

Yes — this is a catch-up SIP. To reach the same target in less time you must raise the monthly amount, and this calculator computes exactly how much. The later you start, the steeper the required instalment, which is why catching up gets harder each year.

Does a small six-month delay really matter?

Yes — more than most people expect. On a ₹10,000 monthly SIP at 12% over 20 years, starting six months late costs about ₹6.4 lakh of terminal wealth against roughly ₹60,000 of skipped instalments. The first instalments compound the longest, so the months you lose at the start are the expensive ones. Starting with a smaller amount today beats waiting to start with the right amount.

I am 40 and have not started investing. Is it too late?

No, but the instalment has to be bigger. With 20 years to 60, a ₹10,000 monthly SIP at 12% reaches about ₹1 crore, ₹20,000 reaches ₹2 crore and ₹25,000 reaches ₹2.5 crore. Someone starting the same ₹10,000 at 30 ends with ₹3.53 crore — so the ten years cost a lot, but 20 years is still enough runway for equity to do its work. Start at whatever amount your cash flow allows this month.

Should I start a smaller SIP now or wait and invest the full amount later?

Start now. A ₹5,000 SIP running for the full 20 years at 12% gives ₹49.96 lakh. Waiting five years to start ₹10,000 for the remaining 15 gives ₹50.46 lakh — nearly the same corpus for double the monthly outgo. Waiting only three years and then paying ₹10,000 for 17 years gives ₹66.79 lakh, so the extra money does help, but only if you actually start paying it. Most people who wait never begin.

Can an annual step-up make up for starting late?

It helps a lot but does not erase the lost years. A ₹10,000 SIP at 12% with a 10% annual step-up grows to about ₹1.99 crore over 20 years, against ₹1 crore flat — the step-up nearly doubles the outcome. But start that same stepped-up SIP five years late and 15 years leaves you at roughly ₹87 lakh. A step-up buys back some of a delay; it cannot buy back the compounding runway.

Authoritative References & Mutual Fund Guidelines: Association of Mutual Funds in India (AMFI) ↗, Securities and Exchange Board of India (SEBI).

Cost of delay, with your numbers

Standard Formula

Cost of delay = Corpus if you start today - Corpus if you start later (same end date)

Live Calculation (Plugging Your Values)

Monthly SIP (P):₹10,000

Delay (d):12

What the delay costs (Cost):₹6.82 L

Extra SIP needed to catch up (Extra):₹1,562

Substituted Equation:

Delaying 12 months costs ₹6.82 L

Cost of the delay:₹6.82 L

The instalments you skip are the earliest ones, and those are the ones that compound longest. That is why a short delay early costs far more than the missed instalments themselves, and why catching up later needs a much bigger SIP than the one you skipped.

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