What is SIP (Systematic Investment Plan)?

A SIP is a standing instruction to invest a fixed amount in a mutual fund every month. You set the amount, the date and the fund once, and the money debits automatically. SIPs start at ₹100 a month through Upstox, with ₹0 commission on mutual fund orders.

What the automation actually does

The bank mandate debits your account on the chosen date and the units are bought at that day’s NAV. You do not decide when to invest, which removes the part most investors get wrong: timing. Over months, the fixed amount buys more units when prices fall and fewer when they rise, averaging the purchase price.

Pause, skip and stop

A SIP is not a contract. You can pause it for months, resume it, or stop it entirely from the app in a minute, without penalty and without touching existing holdings. Freelancers and gig workers use small baseline SIPs they can always afford and add lump sums in good months.

The honest limits

A SIP averages your entry price, but it does not protect you from a falling market: the value of what you already hold falls too. And a SIP in the wrong fund for you is still the wrong fund. The mechanics are simple; the choice of fund still deserves the hour of reading the scheme documents.

The mechanics: debit day, NAV and holidays

On the SIP date, the bank mandate debits the amount and the order goes to the fund house. You receive units at the NAV of the day the money reaches the fund. If the SIP date falls on a holiday, the debit and the order process on the next business day. The exact date you pick matters less than the fact that the debit happens automatically; the one variable to manage is keeping the bank balance funded the night before the SIP date.

Step-up SIPs, and when they help

A step-up SIP raises the monthly amount by a fixed percentage every year, matching income growth. A ₹1,000 SIP stepped up 10% yearly becomes about ₹2,600 a month in ten years, and the invested total roughly doubles versus a flat SIP. The feature costs nothing extra and suits salaried investors who know their income will rise. The honest caveat is the mirror image of the benefit: the higher the later amounts, the more of the corpus comes from years you have not lived yet.

A concrete example

You set a ₹1,000 SIP on the 5th of every month in a Nifty 50 index fund. On every 5th, ₹1,000 debits and units are bought at that day’s NAV. In a month the market falls 10%, your ₹1,000 buys roughly 11% more units, and the average cost of your holdings inches down.

The numbers to remember

₹100

Minimum SIP at Upstox

₹0

Mutual fund commission at Upstox

Questions people ask about SIP (Systematic Investment Plan)

The debit fails, and nothing else happens. There is no penalty for a missed SIP. The SIP continues from the next month. Repeated failures over several months can auto-cancel the mandate at some banks, so pause it formally in the app instead of relying on insufficient balance.

Yes. Increase, decrease, pause and resume all happen in the app without closing anything. A common pattern is starting at ₹500 and stepping the amount up with each raise or appraisal.

No. A SIP guarantees that the investing happens, not what it returns. In a falling market your existing units lose value even as new units are bought cheaper. The guarantee is behavioural: the money gets invested every month without needing a decision.

Yes. Multiple SIPs in one fund are common, for example a fixed ₹1,000 and a step-up SIP side by side. Each has its own mandate and can be paused independently, which gives finer control than one combined SIP.

Related terms

Ready to put the words to work?

The account costs ₹0 to open, and the first year of AMC is free.

Open free account