SIP vs RD — Same Monthly Habit, Different Product

Most comparisons open by praising the discipline of investing monthly. That praise applies to both products equally, so it tells you nothing useful.

An RD debits your account on a date you choose and credits a deposit account. A SIP debits your account on a date you choose and buys units in a scheme. Mechanically, from your side of the counter, these are the same act. The bank mandate looks similar, the reminder in your calendar looks similar, and both stop being decisions after month two.

So when somebody tells you a SIP builds discipline, note that an RD does exactly the same thing and has been doing it in Indian households for decades. The real question is narrower and less flattering to both: what does each one actually hand you at the end, and what does it cost to change your mind?

An RD states its rate when you open it. The bank commits to that rate for the tenure, and deposits carry DICGC protection up to the limit specified there. On the maturity date you know the number in advance, and that certainty is the entire product.

A mutual fund makes no such commitment. Its value moves with what the scheme holds, and on the day you need the money it can be lower than what you put in. We are a distributor and it would be easy to skate past this, so let us be blunt: nobody can tell you what a SIP will be worth, and any page that prints a figure has assumed one.

That difference is not a scoreline. It is a description of two different jobs. If the certainty is what you need, the RD is not a compromise, it is the correct product. If the horizon is long enough that a bad year does not force your hand, the trade-off changes shape.

This is where the two diverge more than anywhere else, and it is rarely explained at the counter.

RD interest is generally taxable as income in the year it accrues, at your slab rate, with TDS deducted above the applicable threshold. The tax event arrives every year whether or not you have touched the money, so a long-running RD is taxed repeatedly through its life.

A mutual fund is taxed on redemption, on the gain rather than the amount, and how the gain is treated depends on the scheme category and the holding period. Until you sell, there is no tax event at all.

Rates and thresholds change with each Finance Act, so we have deliberately printed none here, and you should be sceptical of any page that does without a date on it. What does not change is the structural difference: taxed annually as income on one side, taxed once on realisation on the other. For someone in a higher slab running a long RD, that difference is worth working out properly rather than assuming.

Life interrupts both. They handle it differently.

• Breaking an RD early usually means a penalty and a reduced rate on what you have already deposited. The exact treatment varies by bank, and it is worth reading before you open one rather than after.
• Missing an RD instalment generally attracts a charge, and repeated misses can close the account.
• Stopping a SIP carries no penalty from the fund house. Future instalments simply end.
• Redeeming units may attract exit load if you sell within the scheme's defined period, and each instalment carries its own purchase date for that purpose.

That flexibility cuts both ways, and honestly it is the SIP's biggest practical weakness. Because stopping is free and easy, people stop, usually during a fall, which is the worst moment to do it. An RD's rigidity is annoying and it is also the reason people finish them. Our guide on stopping a SIP and withdrawing money covers what actually happens when you do.

Almost nobody needs to choose one and abandon the other. The useful question is which pot each rupee goes into.

• Within two or three years: an RD, or a short deposit. A near-term goal has no room to sit out a bad stretch.
• Your emergency buffer: not here at all. That belongs somewhere you can reach the same day, as set out on our page for building an emergency fund.
• Beyond seven years: this is where a monthly SIP has the time it needs, and where an annually taxed deposit works hardest against you.

Most households we meet do not need to close anything. They need to decide where the next increment goes, which is a far smaller decision. If your money is currently spread across a PPF as well, our page on SIP versus PPF deals with the lock-in question, and if you would rather talk it through against your own numbers, get in touch.