RD vs SIP

beginner6 min read

Both invest a fixed sum every month. One buys a guaranteed 6.5-7%; the other buys whatever the market delivers. Same habit, different engine.

A recurring deposit (RD) and a SIP look identical from the outside: a fixed amount leaves your account every month and quietly builds up. The confusion ends there. An RD is a product — a bank deposit paying a guaranteed ~6.5-7%. A SIP is just a *delivery mechanism* — a standing instruction to buy some mutual fund monthly; what you actually get depends entirely on which fund the SIP feeds.

So “RD vs SIP” is really “guaranteed debt vs market-linked fund, drip-fed monthly” — and the deciding variable is your horizon. Under ~3 years, the RD’s guarantee is worth more than the SIP’s upside: an equity fund can easily be down 20% in year two, exactly when you need the money, and a 1-2% extra expected return can’t compensate for that. Beyond ~5-7 years, the odds flip hard: Indian equity has historically delivered ~11-13% over long holding periods vs the RD’s ~6.5-7% pre-tax — and RD interest is taxed at slab every year, dragging a 30%-bracket saver’s real return to ~4.5-4.9%, barely above inflation. The same monthly habit that preserves money in an RD builds wealth in a long-horizon equity SIP. Choose the engine by the destination date, not by which one an ad showed you.

RD — a bank product: guaranteed ~6.5-7%, fixed tenure, DICGC-insured; interest taxed at slab yearly (TDS applies); early exit penalised.
SIP — a mechanism, not a product: monthly buying of any mutual fund (equity, debt, hybrid); return = the fund’s return; fully flexible (pause, stop, change amount).
Horizon rule — money needed within ~3 years: RD (or a debt-fund SIP). Goals 5+ years away: equity-fund SIP.
Tax — RD interest taxed annually at slab; equity-fund gains taxed only on sale (12.5% LTCG above ₹1.25 lakh/yr) — a much lighter drag.

Example₹10,000/month for 10 years. RD at 6.75%: corpus ≈ ₹17.1 lakh, and a 30%-bracket saver loses a chunk of the ₹5.1 lakh interest to yearly tax. Equity-fund SIP at a historical-ish 12%: corpus ≈ ₹23.2 lakh, taxed lightly and only on sale. But run the same SIP for just 2 years into a falling market and it can sit at −15% when your goal arrives — which is why the same SIP that’s brilliant for 10-year money is reckless for 2-year money.

Common mistakeComparing the RD’s guaranteed 6.75% against the SIP illustration’s assumed 12% as if both were promises. The 12% is a long-run historical average with brutal interim swings — not a rate. The honest comparison is: guaranteed 6.75% (taxed at slab, yearly) vs a distribution of outcomes centred near 11-13% that needs 5+ years for the odds to be reliably on your side.

Test yourselfYour goal is 2 years away. RD or equity-fund SIP — and why?

RD (or a debt-fund SIP). Under ~3 years, an equity SIP can easily be 15-20% down exactly when the goal arrives; the RD’s guaranteed ~6.5-7% is worth more than the equity upside on that horizon. Equity SIPs need 5+ years for the odds to be reliably on your side.

✓ You learnedRD is a guaranteed ~6.5-7% bank product; SIP is a monthly buying mechanism whose return depends on the fund it feeds. Decide by horizon: under ~3 years the RD’s certainty wins; past ~5 years an equity-fund SIP’s higher expected return and lighter tax treatment compound into a decisively larger corpus. Same habit — pick the engine that matches the date.

FAQs

Is a SIP riskier than an RD?

The SIP itself is just a schedule — the risk lives in what it buys. A SIP into a liquid or short-duration debt fund is only slightly riskier than an RD; a SIP into an equity fund carries full market risk and needs a 5+ year horizon. RD returns are guaranteed and insured, but after slab tax they often barely beat inflation — a different kind of risk (quiet erosion) rather than no risk.