Calculators · Savings & Fixed Income
Post Office FD calculator
Use this free Post Office FD calculator to work out the maturity amount and interest on a Post Office time deposit. The October–December 2026 rates are preloaded, with yearly interest, early closure rules and post-tax returns.
What your FD actually earns
Five calculation modes on one engine — cumulative growth, monthly payout, goal sizing, laddering and loan-against-FD. Every mode shows the post-tax and inflation-adjusted figure beside the headline number, because the headline rate is rarely the one you keep.
Worth is independent and is not affiliated with, or endorsed by, India Post or the Department of Posts. Rates are taken from the Ministry of Finance official rate card (1 October to 31 December 2026 (unchanged from the previous quarter)), checked on 14 October 2026.
The method
How to calculate Post Office FD interest
Post Office time deposits calculate interest quarterly and pay it out once a year. Pick a tenure in the Post Office FD calculator and it applies that tenure's rate, then shows the maturity amount, total interest and what you keep after tax and inflation.
Post Office FD interest rates for October–December 2026
| Tenure | Rate (same for all ages) |
|---|---|
| 1-year time deposit | 6.90% |
| 2-year time deposit | 7.00% |
| 3-year time deposit | 7.10% |
| 5-year time deposit | 7.50% |
Post Office Time Deposits are a small savings scheme run by India Post. The Ministry of Finance sets the rates every quarter, and the deposits are backed by the Government of India rather than DICGC insurance. Rates are reset every quarter, so check the current rate before relying on a projection.
Worked example: Post Office FD, 3 years, 30% slab
- Deposit
- ₹5,00,000
- Post Office 3-year rate
- 7.10%, compounded quarterly
- Period
- 3 years
- Interest earned
- ₹1,17,538
- Maturity amount
- ₹6,17,538
- Tax on interest (30%, new regime)
- ₹35,261
- Post-tax maturity
- ₹5,82,276
These are the calculator's default inputs on this page, so you can check every figure in the tool.
Key facts
Post Office FD rules: minimum deposit and early closure
Only terms confirmed on the lender's own website are listed. Check your deposit advice for the terms that apply to you.
| Minimum deposit | ₹1,000, in multiples of ₹100; no maximum |
| Tenures | 1, 2, 3 or 5 years |
| How interest is paid | Calculated quarterly and paid out once a year |
| Who can open | A single adult, up to three adults jointly, a guardian for a minor, or a minor aged 10 or above |
| Withdrawal within 6 months | Not allowed |
| Closure after 6 months but before 1 year | Interest at the Post Office savings account rate |
| Closure after 1 year | Interest 2 percentage points below the time deposit rate for the completed period, for completed years |
| Tax benefit | The 5-year time deposit qualifies for the Section 80C deduction under the old regime |
| Senior citizens | Same rate as everyone else |
Source: India Post (National Savings Time Deposit Scheme). Effective: 1 October to 31 December 2026 (unchanged from the previous quarter). Checked by Worth on 14 October 2026. Rates are reset by the Ministry of Finance every quarter.
Closing a Post Office TD early: worked example
- Deposit
- ₹5,00,000
- Booked
- 3-year time deposit at 7.10%
- Closed after
- 18 months (1 completed year)
- Rate applied
- 4.90% (1-year rate 6.90% minus 2 points)
- Interest received
- ₹24,954
- At the full 1-year rate for 18 months
- ₹54,034
- Cost of closing early
- ₹29,080
Interest is paid only for completed years after the 2-point cut. Closing within 6 months is not allowed.
The essentials
Post Office FD returns: yearly interest, tax and how rates compare
Yearly interest on a Post Office time deposit
On the 5-year Post Office time deposit at 7.50%, yearly interest works out to about ₹7,714 on ₹1 lakh, ₹38,568 on ₹5 lakh and ₹77,136 on ₹10 lakh, before tax. Because the Post Office pays interest out every year, these yearly amounts are what you actually receive; the calculator's maturity figure assumes the interest is left to compound.
Post Office FD for senior citizens and tax
Post Office time deposits pay the same rate to everyone, with no senior citizen premium. The 5-year time deposit qualifies for the Section 80C deduction under the old tax regime, and the interest is taxable at your slab rate. ₹10 lakh for 5 years at 7.50% grows to about ₹14.50 lakh if interest is left to compound. Senior citizens who want a regular income often compare this with the Senior Citizens Savings Scheme.
How Post Office FD rates compare, and doubling time
At one year, Post Office Time Deposit's 6.90% ranks 4th of the 15 lenders in this calculator; the highest is 7.50% from Unity Small Finance Bank. At five years, Post Office Time Deposit's 7.50% ranks 2nd of the 15 lenders in this calculator; the highest is 7.77% from Jana Small Finance Bank. At the 5-year rate of 7.50%, a deposit doubles in about 9.3 years. Rate cards are revised on different dates, so compare like with like in the table below or in the main FD calculator.
Rate comparison
How Post Office FD rates compare with other banks
1, 3 and 5-year general rates from each lender's official rate card, checked on 14 October 2026. Rate cards change on different dates, so the last column shows each one's effective date. The highlighted row is this page's lender.
| Lender | 1 year | 3 years | 5 years | Rate card |
|---|---|---|---|---|
| State Bank of India | 6.25% | 6.30% | 6.05% | 15 Dec 2025 |
| HDFC Bank | 6.25% | 6.45% | 6.40% | 19 Aug 2026 |
| ICICI Bank | 6.25% | 6.45% | 6.50% | 14 Oct 2026 |
| Axis Bank | 6.25% | 6.50% | 6.50% | 30 Sep 2026 |
| Kotak Mahindra Bank | 6.50% | 6.40% | 6.25% | 15 Apr 2026 |
| Punjab National Bank | 6.25% | 6.30% | 6.35% | 1 Jun 2026 |
| Bank of India | 6.25% | 6.25% | 6.00% | No date shown |
| Canara Bank | 6.25% | 6.25% | 6.25% | 17 Mar 2026 |
| Union Bank of India | 6.20% | 6.10% | 6.00% | 4 Aug 2026 |
| Central Bank of India | 6.10% | 6.00% | 6.00% | 10 Aug 2026 |
| Post Office Time Deposit | 6.90% | 7.10% | 7.50% | Oct–Dec 2026 |
| Jana Small Finance Bank | 7.00% | 8.00% | 7.77% | 29 Sep 2026 |
| Equitas Small Finance Bank | 7.00% | 7.00% | 7.00% | 3 Nov 2025 |
| AU Small Finance Bank | 6.35% | 7.40% | 6.75% | 1 Sep 2026 |
| Unity Small Finance Bank | 7.50% | 6.75% | 6.75% | 15 Jul 2026 |
Common questions
Post Office FD Calculator: frequently asked questions
How do I calculate interest on a Post Office FD?
What are the current Post Office FD interest rates?
What happens if I close a Post Office time deposit early?
How much yearly interest does a Post Office FD pay on ₹1 lakh?
What is the minimum deposit for a Post Office FD?
In how many years will a Post Office FD double?
Is a Post Office FD safe?
Is Post Office FD interest taxable?
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