Fixed deposit
One deposit, interest added four times a year. The effective annual rate is printed beside the maturity. A deposit quoted at one rate accumulates at a slightly higher one, and comparing quoted rates alone hides that.
FD, RD and PPF side by side, with the interest each one earns.

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₹5,00,000.00 at 7% for 60 months matures at ₹7,07,389.10. Of that, ₹2,07,389.10 is interest.
A fixed deposit, after everything
5.15% a year after tax and before inflation. 0.14% a year after both. Interest is added at the end of each quarter. This makes the effective rate higher than the quoted rate. Interest is taxed at your chosen slab and cess. The last row uses your inflation input. These are calculations, not forecasts.
What the headline is worth after everything
The three parts add up to the ₹7,07,389.10 headline. At the slab and inflation figures you entered, ₹5,03,559.50 of it is what the money buys in today's prices.
| Period | Opening | Interest | Closing |
|---|---|---|---|
| Quarter 1 | ₹5,00,000.00 | ₹8,750.00 | ₹5,08,750.00 |
| Quarter 2 | ₹5,08,750.00 | ₹8,903.13 | ₹5,17,653.13 |
| Quarter 3 | ₹5,17,653.13 | ₹9,058.93 | ₹5,26,712.05 |
| Quarter 4 | ₹5,26,712.05 | ₹9,217.46 | ₹5,35,929.52 |
| Quarter 5 | ₹5,35,929.52 | ₹9,378.77 | ₹5,45,308.28 |
| Quarter 6 | ₹5,45,308.28 | ₹9,542.89 | ₹5,54,851.18 |
| Quarter 7 | ₹5,54,851.18 | ₹9,709.90 | ₹5,64,561.07 |
| Quarter 8 | ₹5,64,561.07 | ₹9,879.82 | ₹5,74,440.89 |
| Quarter 9 | ₹5,74,440.89 | ₹10,052.72 | ₹5,84,493.61 |
| Quarter 10 | ₹5,84,493.61 | ₹10,228.64 | ₹5,94,722.25 |
| Quarter 11 | ₹5,94,722.25 | ₹10,407.64 | ₹6,05,129.88 |
| Quarter 12 | ₹6,05,129.88 | ₹10,589.77 | ₹6,15,719.66 |
| Quarter 13 | ₹6,15,719.66 | ₹10,775.09 | ₹6,26,494.75 |
| Quarter 14 | ₹6,26,494.75 | ₹10,963.66 | ₹6,37,458.41 |
| Quarter 15 | ₹6,37,458.41 | ₹11,155.52 | ₹6,48,613.93 |
| Quarter 16 | ₹6,48,613.93 | ₹11,350.74 | ₹6,59,964.68 |
| Quarter 17 | ₹6,59,964.68 | ₹11,549.38 | ₹6,71,514.06 |
| Quarter 18 | ₹6,71,514.06 | ₹11,751.50 | ₹6,83,265.55 |
| Quarter 19 | ₹6,83,265.55 | ₹11,957.15 | ₹6,95,222.70 |
| Quarter 20 | ₹6,95,222.70 | ₹12,166.40 | ₹7,07,389.10 |
Each file lists the source and the check date for every rate. The CSV comes as two files, the figures and their sources.
PPF default 7.1% was notified for 1 October 2026 to 31 December 2026 and checked on 5 October 2026. Small-savings rates are revised quarterly, so confirm the running quarter and type the rate in.
The PPF rate starts at the latest notified rate. You can change every rate in the form.
A deposit quoted at 7% a year does not pay 7% a year. Two things change the answer more than the headline rate does. One is how often the interest is added. The other is whether the interest is taxed. A fixed deposit adds interest four times a year. A recurring deposit does the same, but each instalment starts on a different date, so no two instalments earn for the same length of time. PPF adds interest once a year. It pays only on the balance that was already sitting in the account at the close of the 5th of each month.
Tax then splits them apart again. Interest on a fixed or recurring deposit is added to your income and charged at your slab. A 4% health and education cess applies on that tax. PPF is exempt at all three stages: on the way in, while it grows, and on the way out. Two accounts paying the same rate can hand back very different amounts. That is what the comparison tab is for.
One deposit, interest added four times a year. The effective annual rate is printed beside the maturity. A deposit quoted at one rate accumulates at a slightly higher one, and comparing quoted rates alone hides that.
Twelve deposits a year, each compounding quarterly for its own remaining term. The first instalment earns for the whole tenure, and the last for a single month. The maturity is therefore a sum of differently aged deposits, not one annuity.
Interest accrues monthly on the lowest balance between the close of the 5th and month end. It is then credited at the end of the year. Nothing compounds inside a year. Money arriving after the 5th sits out that month entirely.
FD and RD interest is added to income and charged at your slab. A 4% health and education cess applies on the tax. PPF is exempt at all three stages. Two products at the same headline rate are therefore not the same product.
A future rupee is restated in today's prices by dividing by compounded inflation at the rate you enter. It is a figure you choose, not one this page publishes, and nothing here forecasts it.
Rates that move are inputs with documented defaults. Each is listed with its source and the date it was checked. Small-savings rates are notified quarterly, so the default states the quarter it belongs to rather than presenting itself as permanent.
₹1,00,000 placed for five years at 7% a year, compounded quarterly. The rate per quarter is 7% ÷ 4 = 1.75%, and there are twenty quarters:
M = 100000 × (1 + 0.07/4)^20 = 141477.82The effective annual rate is (1 + 0.07/4)4 − 1 = 7.186%. That is the number to hold against an annually compounded product. Comparing 7% with 7% would quietly understate this deposit.
Interest earned is ₹41,477.82. At a 30% slab plus the 4% cess — 31.2% on the interest — the tax is ₹12,941.08, leaving ₹1,28,536.74. Restated in today's prices at 5% inflation, that is ₹1,00,711.90 — an annualised 0.14% after everything, against a headline that looked like 7.186%.
₹5,000 a month for sixty months at 7% a year. Each instalment compounds quarterly for its own remaining term, so instalment number k is on deposit for 61 − k months and the sum is taken one instalment at a time:
M = Σ 5000 × (1 + 0.07/4)^(months remaining ÷ 3) = 359663.95The monthly-compounding annuity formula published in most places returns ₹3,60,052.63 on the same inputs — ₹388.68 more. It compounds twelve times a year on a product that compounds four, and the gap widens with the term. Both figures appear in the tool above, so you can check the size of the difference rather than take either on trust.
You pay in ₹3,00,000.00 and the interest is ₹59,663.95. After 31.2% tax that is ₹3,41,048.80, and in today's money at 5% inflation, ₹2,67,220.66.
₹12,500 a month for fifteen years at 7.1% a year, reaching the account on the 10th. Because the 10th is after the 5th, each month's deposit was not in the account at the close of the 5th, so under paragraph 7(1) of the Public Provident Fund Scheme, 2019 it earns nothing for its own month:
Nothing else differs: same instalments, same rate, same fifteen years. In the first year alone the account credits ₹4,881.25 instead of the amount it would have. Every month missed is also missing from every later year's compounding. That is why the gap ends up far larger than fifteen single months of interest.
PPF is exempt at all three stages, so the ₹16,72,124.68 of interest is not taxed and the after-tax figure is the balance itself. Inflation still applies: at 5% the ₹39,22,124.68 is worth ₹18,86,609.03 in today's prices.
The last tab puts the same monthly rupee into all three over one horizon. The fixed-deposit column is a monthly ladder. Each month's money goes into its own deposit, running to the same end date. That makes an honest point visible: at the same rate, that ladder and a recurring deposit are the identical sum. What separates them in practice is the rate each is quoted at, so each gets its own rate box.
The PPF column takes the scheme ceiling of ₹1,50,000 in a financial year. Above that the account does not accept the money, so the row says how much did not fit rather than quietly investing it.
Premature withdrawal penalties, PPF loans and partial withdrawals, the deduction on the contribution under s.80C (1961 Act), now s.123 (2025 Act), surcharge on high incomes, and any bank-specific rounding are all outside this tool. Tax deducted at source is not added either. It is the bank withholding tax you already owe on the interest, not a separate charge. Counting it would deduct the same money twice.
A tenure that is not a whole number of quarters is handled by a convention this page states. Compound the complete quarters, then apply simple interest on the leftover months. Banks differ on that, so reconcile against the figure your own bank quotes.
| Figure | Value | Kind | How often it changes | Source | Checked |
|---|---|---|---|---|---|
| PPF interest rate (default) | 7.1% a year | Notified rate | Notified every quarter by the Ministry of Finance (Budget Division). | Ministry of Finance (Budget Division) Office Memorandum F.No.1/4/2019-NS of 30 September 2026: rates for 1 October – 31 December 2026 left unchanged from the July – September quarter, PPF 7.1% per annum. Confirm the running quarter at nsiindia.gov.in before relying on it. | 5 October 2026 |
| PPF minimum deposit in a year | ₹500 | Scheme rule | Fixed by the scheme notification. It changes only by amendment. | Public Provident Fund Scheme, 2019, paragraph 4(1) — G.S.R. 915(E) dated 12 December 2019. | 5 October 2026 |
| PPF maximum deposit in a year | ₹1,50,000 | Scheme rule | Fixed by the scheme notification. It changes only by amendment. | Public Provident Fund Scheme, 2019, paragraph 4(1) — G.S.R. 915(E) dated 12 December 2019. | 5 October 2026 |
| PPF deposit multiple | ₹50 | Scheme rule | Fixed by the scheme notification. It changes only by amendment. | Public Provident Fund Scheme, 2019, paragraph 4(1) — deposits are made in multiples of fifty rupees. | 5 October 2026 |
| PPF minimum-balance day | day 5 | Scheme rule | Fixed by the scheme notification. It changes only by amendment. | Public Provident Fund Scheme, 2019, paragraph 7(1A) (inserted by G.S.R. 290(E), 5 May 2020, for deposits from 1 April 2020) — interest is eligible for a calendar month on the lowest balance at the credit of an account between the close of the fifth day and the end of the month. Paragraph 7(2) credits interest at the end of each year. | 5 October 2026 |
| PPF term | 15 years | Scheme rule | Fixed by the scheme notification. It changes only by amendment. | Public Provident Fund Scheme, 2019, paragraph 11(1) — closure any time after fifteen years from the end of the year in which the account was opened. | 5 October 2026 |
| PPF extension block | 5 years | Scheme rule | Fixed by the scheme notification. It changes only by amendment. | Public Provident Fund Scheme, 2019, paragraph 12 — the account may be extended for a further block period of five years, in successive blocks. | 5 October 2026 |
| Health and education cess | 4% | Notified rate | Set by the annual Finance Act. Check it each Budget. | Health and education cess of 4% on income-tax plus surcharge (Finance Act, and the incometax.gov.in tax-rate tables), re-checked for AY 2026-27. | 5 October 2026 |
| FD / RD compounding frequency | 4 | Stated convention | A market convention, not a statutory rate. Individual banks may differ. | Quarterly compounding is the usual Indian bank practice on cumulative term deposits. This calculator states the convention rather than assuming your bank's. Check it against the maturity figure your bank quotes. | 4 September 2026 |
| Inflation assumption (default) | 5% a year | Your assumption | Your own assumption. Change it — nothing published fixes this number. | Not a published or forecast figure. It is a starting value for the reader to replace, used only to restate a future rupee amount in today's money. | 4 September 2026 |
For the charges on a market trade rather than a deposit, see the trade cost and breakeven calculator. For sizing a position from your own capital, the position size calculator works the same way, from your own figures. The full list is on the tools index.
Quarterly, on a cumulative deposit. That is the usual bank practice rather than a statutory rule, which is why this calculator states the convention it uses instead of assuming your bank's. Because of it, a deposit quoted at 7% a year actually accumulates at 7.186% a year. That figure is the effective annual rate. It is printed beside every result. That way a quarterly FD can be held next to an annually compounded product honestly.
Because an RD compounds four times a year, not twelve. The formula published in most places is the monthly-compounding annuity formula. That one compounds twelve times a year at the same quoted rate, so it returns a larger number. This tool instead compounds each instalment quarterly for its own remaining term. It prints both figures side by side, so you can see the size of the gap rather than take it on trust.
Paragraph 7(1) of the Public Provident Fund Scheme, 2019 sets the rule. A month's interest is eligible on the lowest balance at the credit of the account between the close of the fifth day and the end of that month. Money that lands on the 6th or later is in the account at month end. It was not there at the close of the 5th, though, so it earns nothing for that month. Paragraph 7(2) then credits the year's accrued interest at the end of the year. The calculator runs the same money on your chosen date and on the 5th, and prints the difference.
PPF is exempt at all three stages. The contribution attracts a deduction under s.80C (1961 Act), now s.123 (2025 Act) for a taxpayer under the old regime. The interest is exempt, and the maturity amount is exempt. FD and RD interest is not. It is added to income and charged at your slab rate. That is why a 7% FD and a 7% PPF are not the same product. It is also why the comparison on this page ends on the post-tax figure rather than the headline.
The Ministry of Finance notifies small-savings rates, including PPF, every quarter. You can change the rate entered. Its default names the notified quarter and the date checked. Confirm the current rate at nsiindia.gov.in if that quarter has passed, then enter it.
No, and deliberately. Tax deducted at source is the bank withholding part of the tax you already owe on that interest. It is a payment on account, not an extra charge. Counting it separately would deduct the same money twice. The post-tax figure here applies your marginal slab to the whole interest, plus the 4% health and education cess. Surcharge is not modelled. It depends on total income, which this page never asks for.
Because a rupee received in fifteen years does not buy what a rupee buys now. The tool divides the post-tax amount by compounded inflation at the rate you enter. That restates it in today's prices. The inflation figure is your own assumption, and nothing on this page forecasts it. Change it and the arithmetic changes with it.
Its second half is the arithmetic behind the last figure on this page. Inflation is divided out, not subtracted: 8% growth against 6% inflation leaves about 1.89% rather than 2%, and the gap between the two methods widens as both rates rise.
Read the lesson Then thisMarket X-Ray for market mechanicsWhere the figures stop being fixed: change spot, time, volatility or open interest on a synthetic example and watch a model respond — option premiums, open interest, liquidity and expiry.
OpenLast checked on 5 October 2026.