STP Calculator — Systematic Transfer Plan
Lumpsum parked in a debt fund, transferred monthly into equity — final value versus investing all at once.
Formula
Disclaimer: Assumes a constant annual return — real market returns vary year to year, and mutual-fund investments are subject to market risk. Educational math only, not investment advice.
Need stp calculator results fast? Skip the spreadsheet and get a clear, defensible answer in one step — free, private and instant, recalculating live as you change any input.
About STP Calculator — Systematic Transfer Plan
An STP answers the windfall question — 'I have ₹12 lakh from a bonus/property sale; do I dump it into equity today?' — by staging the entry: park the lumpsum in a liquid/debt fund (earning ~6.5% instead of savings-account rates) and auto-transfer a slice into equity monthly. The calculator compares that staged path against day-one investment over your full horizon. The honest math: in EXPECTED terms, day-one lumpsum wins more often than not (markets rise more years than they fall, so delay has a cost — usually visible in the comparison above). What STP buys is regret insurance: if the market crashes 20% in month three, the staged investor is buying the dip with 75% of the corpus intact rather than riding it down fully invested. You're trading a small expected return for a much smaller worst case. Calibrate the transfer window to the trade-off: 6–12 months captures most of the smoothing benefit; stretching to 24–36 months leaves too much money earning debt returns for too long and the drag compounds. And mind the tax detail — every monthly transfer is a redemption from the debt fund, so each slice realizes (small) taxable gains along the way.
How to use STP Calculator — Systematic Transfer Plan
- 1Enter Lumpsum to deploy, Transfer over (months), Source (debt/liquid) fund return (%), Target (equity) fund return (%), Total horizon (years) into the STP Calculator.
- 2The result is computed automatically using Each month a slice (lumpsum ÷ months) moves from the debt fund (earning its rate) into equity (earning its rate) — there is no button to press; it updates live as you type.
- 3Change any input to model a different scenario, then use “Copy result link” to share the exact numbers.
Why use STP Calculator — Systematic Transfer Plan?
- ✓Computes stp calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter are never uploaded or stored
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
STP better hai ya seedha lumpsum?+
Expected return me lumpsum aksar aage rehta hai (market zyada saal upar jaata hai), par STP worst-case ko kaafi chhota kar deta hai — crash ke waqt aapka bada hissa abhi debt me hota hai. Rule of thumb: amount aapke saal-bhar ke investment se kai guna bada ho ya market all-time-high anxiety de raha ho, to 6–12 mahine ka STP; warna lumpsum.
STP ke liye kaunsa source fund sahi hai?+
Liquid ya ultra-short-duration fund usi AMC ka jisme target equity fund hai (intra-AMC STP seamless hota hai). Returns 6–7% ke aas-paas, exit load lagbhag zero, aur volatility na ke barabar — source ka kaam paisa SAMBHALNA hai, kamaana nahi.
Kya STP ke har transfer par tax lagta hai?+
Haan — har monthly transfer debt fund se redemption hai, jis par utne hisse ka capital gain taxable hota hai (debt-fund gains slab par). Amounts chhote hote hain isliye tax bhi chhota, par hisaab me rakhein. Equity me pahunchne ke baad wahan ka normal equity-CG regime lagta hai.
Can I STP weekly instead of monthly?+
Most platforms support weekly/fortnightly STPs. The averaging improvement over monthly is marginal (like daily vs monthly SIPs), but for very large amounts or jittery markets, weekly slices over 6–9 months are a reasonable middle path. The math above approximates weekly closely if you simply set more, smaller months.
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