SIP vs RD — which one for your goal horizon?

Most Indian salaried professionals have a vague mental model: "SIP for big goals, RD for safe goals." Roughly right, but the choice is actually about timeline, risk tolerance, and tax behaviour — not vibes.

What each one is

Recurring Deposit (RD)

Bank product. You commit to depositing a fixed amount every month for 6 months to 10 years. Bank guarantees an interest rate (~6–7.5% in 2026). At maturity, you get principal + interest. Interest is fully taxable as "income from other sources."

SIP (Systematic Investment Plan)

A way of investing in mutual funds. You commit to a fixed monthly contribution; the contribution buys mutual fund units at the prevailing NAV. Returns depend on the fund type — equity, debt, hybrid. Equity SIPs over 7+ years have historically averaged ~10– 12%. Debt SIPs ~6–8%. Liquid funds ~5–7%.

Returns vs risk, by horizon

• < 1 year: RD. Liquid fund if you want flexibility. Equity is too volatile.
• 1–3 years:Short-term debt fund SIP if you're above the 20% bracket. RD otherwise.
• 3–5 years: Hybrid / balanced fund SIP — sweet spot for most.
• 5+ years: Equity SIP. ₹15K/mo for 7 yrs in RD ≈ ₹15.5L. Same in a 10% equity SIP ≈ ₹17.7L. The delta is real money.

The tax angle

RD interest is fully taxable at your marginal rate — a 6.5% RD becomes 4.55% post-tax for a 30%-bracket filer. Equity SIPs get LTCG treatment: gains up to ₹1.25L/year tax-free, above that 12.5% (Finance Act 2024). That's a structural edge on top of higher returns. Debt funds lost indexation in 2023 — they now match slab rate, like RD.

Quick decision flow

1. Goal in < 1 year? RD. Liquid fund if you want flexibility.
2. Goal in 1–3 years?Short-term debt fund SIP if you're above 20% bracket. RD otherwise.
3. Goal in 3–5 years? Hybrid fund SIP. Equity SIP if you can absorb volatility.
4. Goal in 5+ years? Equity SIP. Almost always.

What Splexo does with this

When you create a goal, Splex asks how far away it is, then suggests a vehicle category — not a specific product. 4-month concert? "Liquid funds or RD." 5-year MBA? "Equity SIP." Specific fund picks are SEBI RIA territory, not our lane.

Citations

Finance Act 2024 (LTCG taxation amendments). Section 10(38) of the Income Tax Act 1961. SEBI (Mutual Funds) Regulations, 1996. Reserve Bank of India guidelines on bank deposits.