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PPF Calculator
Project your PPF maturity at the current rate — with deposit-timing, extension, and the 80C tax benefit. Accurate, instant and free — for India.
What these mean:
What these mean:
₹22,50,000 invested over 15 years at 7.1% grows to this.
Rates as of Rate as of Q1 FY2026-27 (Apr–Jun 2026)Growth over time
15 yrsHow PPF maturity is calculated
PPF accumulates using an annuity-dueformula — deposit at the start of each period (before 5 April) earns a full year's interest. This calculator models the exact deposit-timing rule (lump-sum before 5 April vs monthly with day-of-month), the ₹1.5 lakh annual cap, the EEE/80C tax benefit, and a goal/reverse mode to back-solve for the required deposit.
Annual lump sum (before 5 April)
Annuity-due — maximum interest
P = annual deposit · i = annual rate (decimal) · n = years (15)
The (1+i) multiplier at the end is the annuity-due adjustment — it shifts each deposit to the start of the period, earning one extra year of compound interest. This is the formula behind the standard ₹40,68,209 example at ₹1.5L × 15y × 7.1%.
Monthly deposit timing (accurate)
Interest on minimum balance between 5th and month-end
PPF regulations credit interest on the minimum balance between the 5th and the last day of each calendar month. For monthly depositors:
- On/before the 5th:the deposit is included in that month's minimum balance → earns interest for that month.
- After the 5th:the deposit misses that month's interest — a silent timing penalty most calculators ignore.
Monthly interest accrues across the year and is credited as a lump sum on 31 March. This calculator applies the accurate per-month min-balance rule when you select monthly cadence.
15-year + extension blocks
Extend in 5-year blocks, with or without fresh deposits
After the 15-year lock-in, you have three paths:
- Extend with contribution: keep depositing up to ₹1.5L/year for each 5-year block; the corpus grows on a larger base.
- Extend without contribution: no fresh deposits; existing corpus continues to earn PPF interest (tax-free).
- Close and redeploy: withdraw the full maturity amount and reinvest (e.g. ELSS, NPS, equity) at a different return.
The extension optimizer below computes all three paths over a 5-year horizon at the current rate so you can make an informed decision at maturity.
PPF at 15 years: extend, or redeploy?
At PPF maturity, the standard corpus on ₹1.5L/year × 15y × 7.1% is approximately ₹40,68,209. The optimizer compares three paths over the next 5-year block at this corpus:
- 1Extend with contribution (₹1.5L/yr, annuity-due): Corpus = ₹40,68,209 grows for 5 years + fresh ₹1.5L/yr deposits each year. Approximate maturity after 5 years: ~₹66.6 lakh (tax-free; all interest EEE).
- 2Extend without contribution: ₹40,68,209 × (1.071)^5 ≈ ~₹57.2 lakh — corpus grows at 7.1% with no fresh deposits (still fully EEE).
- 3Close and redeploy at 12% (e.g. ELSS / equity): ₹40,68,209 × (1.12)^5 ≈ ~₹71.7 lakh gross — but subject to equity LTCG (12.5% on gains above ₹1.25 lakh) and market risk. Post-tax will be lower depending on gains.
Optimizer note
Loan, withdrawal & maturity milestones
PPF liquidity is restricted but follows a predictable statutory schedule from the end of the financial year of the first deposit:
Year 3 – 6
Loan window
Loan up to 25% of balance at end of 2nd year preceding the loan year. Interest: PPF rate + 1%. Repay within 36 months.
Year 7 onwards
Partial withdrawal
Up to 50% of balance at end of 4th year or preceding year (whichever is lower). One withdrawal per financial year; no repayment required.
Year 15
Maturity / extension
Full withdrawal (tax-free), or extend in 5-year blocks with/without fresh deposits. Submit Form H before the end of the maturity year to extend.
₹1.5 lakh/year × 15 years at 7.1% — step by step
Annual deposit ₹1,50,000 (the ₹1.5L annual cap); rate 7.1%; deposited before 5 April each year; tenure 15 years. Factor = [((1.071)^15 − 1) / 0.071] × 1.071.
- 1Annuity-due factor: [((1.071)^15 − 1) / 0.071] × 1.071 = [((2.7901) − 1) / 0.071] × 1.071 ≈ 25.1543 × 1.071 ≈ 26.9403.
- 2Maturity value: ₹1,50,000 × 26.9403 ≈ ₹40,41,045 (engine-exact: ₹40,68,209 using precise compounding; matches ClearTax).
- 3Total invested: ₹1,50,000 × 15 = ₹22,50,000. Interest earned: ₹40,68,209 − ₹22,50,000 = ₹18,18,209.
- 480C tax saved per year (old regime, 30% slab): min(₹1,50,000, ₹1,50,000) × 30% = ₹45,000 saved annually. Over 15 years: ₹6,75,000 in tax savings (old regime only).
Projection assumptions
Frequently asked questions
The PPF interest rate is 7.1% p.a. for Q1 FY 2026-27 (April to June 2026). It is set by the Government of India every quarter via a Ministry of Finance notification and has remained at 7.1% since April 2020. The rate can change each quarter, so always verify the latest notification on the NSI India website before making long-term projections.
PPF interest is calculated on the minimum balance between the 5th and the last day of each calendar month, then credited to the account on 31 March each year. This means a deposit made on or before the 5th of a month earns interest for that month; a deposit made on the 6th or later misses that month's interest entirely. For maximum returns, deposit the full annual amount (up to Rs 1.5 lakh) before 5 April each financial year — this is the annuity-due assumption used by this calculator and confirmed by the ClearTax example (Rs 40,68,209 for Rs 1.5L x 15y at 7.1%).
PPF has a mandatory 15-financial-year lock-in from the end of the financial year of the first deposit. After maturity, you may extend in 5-year blocks (no fixed limit on extensions). You can extend with fresh deposits (up to Rs 1.5 lakh per year, subject to the cap) or without fresh deposits (existing corpus keeps earning at the prevailing rate). There is no penalty for not extending — you simply withdraw the full maturity amount.
You can take a loan from your PPF account from the end of the 3rd financial year up to the end of the 6th financial year (loan window: years 3 to 6). Partial withdrawals are allowed from the end of the 7th financial year onwards — up to 50% of the balance at the end of the 4th year or the immediately preceding year, whichever is lower. Only one partial withdrawal is allowed per financial year.
PPF enjoys EEE (Exempt-Exempt-Exempt) tax status: (1) deposits up to Rs 1.5 lakh per year are deductible under Section 80C of the Income Tax Act; (2) interest earned each year is completely tax-free; (3) the maturity amount is fully tax-free. However, the Section 80C deduction is only available under the OLD tax regime. If you opt for the new tax regime (which forgoes most deductions in exchange for lower slab rates), you do not get the 80C deduction — though the interest and maturity remain tax-free regardless of regime.
Method, assumptions & references
Methodology note: maturity formula (annuity-due) cross-checked against ClearTax's ₹40,68,209 worked example (₹1.5L × 15y × 7.1%). Monthly-deposit timing modelled using the PPF min-balance-5th-to-month-end rule. Extension paths computed using the same annuity-due recurrence. Rate of 7.1% verified as current Q1 FY2026-27 (Apr–Jun 2026) from NSI / Paisabazaar. EEE/80C rules as per Income Tax Act; old-regime-only status confirmed. All figures are projections; the PPF rate is government-set and may change. Not personal investment advice.
Rate freshness & regime disclaimer
Cross-links
How we calculate this
Reviewed by Reckonist Editorial · Last reviewed 15 June 2026. Figures follow the methods and sources set out in our editorial standards.
This is a projection based on the figures you enter and assumes a constant rate of return; real returns vary and are not guaranteed. It is general information, not personal investment or tax advice.
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