SIP vs Recurring Deposit: Returns, Risk and Tax Compared
A recurring deposit pays a fixed, contracted rate of interest. An SIP into a mutual fund gives you a market linked return that could be higher or lower. That difference drives everything else: the risk you carry, the tax you pay and what you end up with. An SIP is a fixed rupee amount invested into a mutual fund scheme at a regular interval, buying however many units that amount can buy at that day’s NAV.
Both pull money from your bank account every month. Only one tells you in advance what you will get.
Here is the same Rs 5,000 a month run through both routes over 10 years, the tax treatment side by side, and a short set of rules for picking one.
How each one actually works
Recurring deposit
You commit to depositing a fixed amount every month for a chosen tenure with a bank or post office. The rate is locked when you open the RD and does not change for its life, even if the bank cuts rates next quarter. Interest is usually compounded quarterly, and at maturity you get principal plus interest.
SIP in a mutual fund
You commit to investing a fixed amount on a chosen date, and the scheme allots units at that day’s NAV. When markets fall, the same Rs 5,000 buys more units. When they rise, it buys fewer. There is no maturity date and no promised rate. Many AMCs allow SIPs from Rs 100 to Rs 500, a lower entry barrier than most RDs.
Registering one is simple once your KYC is done, and this walkthrough of starting an SIP covers the steps.
What does Rs 5,000 a month become in 10 years?
Take 120 monthly instalments of Rs 5,000. Total money put in: Rs 6,00,000 either way.
RD at 6.5% a year, compounded quarterly. Each instalment compounds for less time than the one before, so the first Rs 5,000 grows for 10 years and the last for one month. Add all 120 and maturity comes to roughly Rs 8,44,940, of which about Rs 2,44,940 is interest.
SIP in an equity fund at an illustrative 11% a year. The same 120 instalments give roughly Rs 10,94,936, a gain of about Rs 4,94,936.
Now the honest part. That 11% is an assumption, not a rate anyone contracted with you. Run the same SIP at 8% and you get about Rs 9,20,828. A poor decade could leave you below the RD. The RD figure of Rs 8,44,940 is close to arithmetic certainty as long as the bank stays solvent and you do not miss instalments.
The tax gap is wider than most people expect
Returns get quoted before tax. What you keep is after tax, and the two are taxed on different principles.
| Point of comparison | Recurring deposit | Equity fund SIP |
|---|---|---|
| When tax is due | Every year on interest accrued | Only in the year you redeem units |
| Rate applied | Your income tax slab rate | 12.5% long term, 20% short term |
| Holding period that matters | None, interest is interest | 12 months per tranche of units |
| Annual exemption | None | First Rs 1.25 lakh of long term gains |
| TDS | Deducted once interest crosses the specified threshold | None for resident investors |
| Tax in our example | About Rs 73,482 at the 30% slab | About Rs 46,242 if all gains are long term |
Check the last row. RD interest of Rs 2,44,940 taxed at 30% is Rs 73,482. For the SIP, gains of Rs 4,94,936 minus the Rs 1.25 lakh exemption leaves Rs 3,69,936, and 12.5% of that is Rs 46,242. The SIP earned twice the gain and paid less tax on it.
One caveat: units bought in the final 12 months are short term and taxed at 20%, so a real bill sits slightly above Rs 46,242. Read how mutual fund returns are taxed before redeeming anything large.
Which one is actually riskier?
The RD carries almost no price risk and plenty of erosion risk. If it pays 6.5% while inflation runs at 6%, your purchasing power barely moves, and after slab tax it can go backwards.
The SIP carries real price risk. Your balance can sit below the total you have invested for months, and no rule says a longer holding period fixes that. Equity funds hold shares, and shares fall.
What the SIP has is the averaging effect. Falling markets hand you more units for the same money, lowering your average cost. That is rupee cost averaging, and it only pays off if you keep instalments running through the fall instead of stopping at the worst moment.
Risk note: SIPs do not protect capital and can show a loss over several years. Every scheme carries a SEBI mandated riskometer, refreshed monthly. Read it.
Liquidity, penalties and skipped instalments
- Breaking early. An RD closed before maturity usually attracts a lower rate plus a bank penalty. Fund units can be redeemed any working day, subject to exit load.
- Missing a month. Banks charge for missed RD instalments and may close the deposit after repeated defaults. A missed SIP instalment simply does not get invested, though your bank may charge for the failed mandate.
- Raising the amount. An RD amount is fixed at the start. An SIP can be increased, and a step up facility automates annual raises.
Rules for choosing between them
- Money needed within three years goes to the RD or a liquid fund. Equity is the wrong container for a short horizon.
- Money for a goal seven years out or longer goes to the SIP. Time is the only thing that makes equity volatility tolerable.
- If a 25% fall in your balance would make you stop investing, take the RD. A plan you abandon at the bottom is worse than a lower promised return.
- No emergency fund yet? Build that first, in an RD or a liquid fund.
- Do both if the choice paralyses you. Split the Rs 5,000: Rs 2,000 into the RD for certainty, Rs 3,000 into the SIP. Adjust as your comfort grows.
For the same argument applied to a single deposit rather than monthly instalments, see mutual funds against fixed deposits.
Frequently Asked Questions
Can I lose money in an SIP but not in a recurring deposit?
Yes, that is the core trade. An equity SIP can show a loss at any point, including after several years, because the value tracks the market. An RD cannot lose nominal value, though after slab rate tax and inflation your real purchasing power can shrink. Both carry risk, just different kinds.
Is a debt mutual fund SIP a better substitute for an RD?
It can be, for flexibility, since debt fund units are redeemable any working day without a break penalty. On tax there is no edge: debt scheme units bought on or after 1 April 2023 are taxed at your slab rate with no indexation, the same treatment as RD interest.
What happens to my SIP if the market crashes right before my goal?
The value falls with it, which is why the standard practice is to move money out of equity gradually as the goal approaches. Shifting to a liquid or short duration fund over the final two or three years protects what you have already accumulated from a late crash.
Do I need to pay tax on my SIP every year like RD interest?
No. Mutual fund gains are taxed only when you redeem units, and growth option units pay nothing out along the way, so there is no annual tax event. RD interest is taxable on accrual each year even though you receive the money only at maturity.
How many instalments can I skip before my SIP is cancelled?
Most AMCs cancel an SIP after three consecutive failed instalments, though the number varies by fund house, and your bank may charge for each failed mandate. If you know cash will be tight, pausing the SIP formally is cleaner than letting the mandate bounce.
Key Takeaways
- An RD contracts a rate; an SIP does not. Pick the RD when the amount you need at the end is non negotiable.
- On Rs 5,000 a month for 10 years, an RD at 6.5% builds about Rs 8.45 lakh, an SIP at an illustrative 11% about Rs 10.95 lakh, and at 8% about Rs 9.21 lakh.
- RD interest is taxed at slab rate yearly on accrual; equity gains are taxed only on redemption at 12.5% long term above the Rs 1.25 lakh exemption.
- Horizon decides the container: under three years use an RD, seven years and beyond use an equity SIP.
- Debt fund SIPs give liquidity over an RD but no tax edge, since units bought after 1 April 2023 are taxed at slab rate.
- Splitting your monthly amount across both is a legitimate answer, and lets you raise the equity share as comfort grows.
