Why your first SIP matters more than its size

The most common thing we hear is a version of the same sentence: "I'll start once things settle down." Once the loan is done. Once the increment comes. Once there is a little more room.

It is a reasonable instinct and it is expensive, because the one input you cannot buy back later is time.

Two people, the same money, very different endings

Imagine two people who each put aside exactly ₹9,00,000 over their working life.

• Asha starts at 30 and invests ₹3,000 a month for 25 years.
• Bharat waits, then invests ₹7,500 a month for 10 years.

Same total contribution. At an assumed 10% a year, by the time each finishes:

Illustration only, at an assumed constant return — not a projection of any scheme. Actual returns vary and are not guaranteed.

Asha ends with roughly 2.7 times what Bharat does, having never once invested more in a month than he did. She was not cleverer and she did not pick better. She simply gave the money longer to compound.

The cost of "next year"

Put it another way. Someone investing ₹5,000 a month at the same assumed 10%:

• Starting now, for 25 years — around ₹62.2 lakh
• Starting in five years, for 20 years — around ₹36.2 lakh

Five years of delay costs about ₹26 lakh in this illustration, while the amount saved each month never changed. That gap is not a reward for skill. It is only the price of the years that went by.

So start small enough that you will not stop

₹500 a month for 20 years at 10% comes to roughly ₹3.6 lakh on ₹1.2 lakh put in. That is not life-changing money, and it is not the point. The point is that after two years of an unbroken ₹500, raising it to ₹5,000 is an administrative decision rather than an emotional one. The habit is the hard part; the amount is easy to change later.

A practical way to do it: pick a figure you would not notice missing, set the auto-debit for the day after your salary lands, and raise it whenever your income does. Many people use a step-up, increasing the instalment by a fixed percentage each year — our SIP calculator has a step-up option if you want to see what that does.

What this does not promise

Every figure above assumes a steady 10% a year. Real markets do not work that way: they fall, sometimes for years, and an equity fund can be worth less than you put into it for long stretches. The case for starting early is not that returns are assured — it is that time in the market is the one advantage available to someone with a small amount to invest and no special knowledge.