This post office fixed deposit interest rate calculator shows a time deposit's payout per year and over its whole life, for any sum and any of the four terms. It uses this quarter's rates, from 6.9% to 7.5%, and the post office method of quarterly calculation with a yearly payout.
Choose the term, type the amount, and open the year by year table to see each payout. Nothing you enter leaves your phone.
At a glance
Rates used
6.9%, 7.0%, 7.1%, 7.5%Method
Quarterly compounding within each yearPayout
Once a year on the deposit anniversaryMinimum
₹1,000
The formula behind the post office fixed deposit interest rate calculator
For each year, the calculator takes the yearly rate, splits it into four quarterly steps and compounds them, then pays the result out:
Yearly interest = Deposit × ((1 + rate ÷ 400) to the power 4 minus 1). For ₹2 lakh at 7.0% for two years: ₹2,00,000 × (1.0175 to the 4th power minus 1) = about ₹14,372 a year, so ₹28,744 over two years.
Because the interest leaves the account each year, it does not compound from one year to the next. That is why a TD gives a little less in total than an NSC at a similar rate.
Quick results for ₹1 lakh
| Term | Rate | Each year | Total interest |
|---|---|---|---|
| 1 year | 6.9% | ₹7,081 | ₹7,081 |
| 2 years | 7.0% | ₹7,186 | ₹14,372 |
| 3 years | 7.1% | ₹7,291 | ₹21,874 |
| 5 years | 7.5% | ₹7,714 | ₹38,568 |
Multiply by the number of lakhs for larger amounts. A ₹50,000 deposit earns half of each figure.
Why other calculators show a bigger maturity number
Some calculators online show a single maturity value that assumes the interest is compounded quarterly for the whole term, for example about ₹1,44,995 on ₹1 lakh over five years. That number only applies if every yearly payout is reinvested at the same rate. Our calculator shows what the post office actually pays you each year, which is the figure you can plan your budget on.
If you want the reinvested picture, route each payout into an RD and use the post office RD calculator, or compare with an NSC, which does compound to maturity.
Using the calculator for other post office schemes
People often search for a post office scheme calculator or a post office interest rate calculator expecting one tool for everything. The maths differs by scheme, so each has its own calculator here:
- Monthly income: MIS calculator
- Seniors: SCSS calculator
- 15 year saving: PPF calculator
- Savings account: 4.0% a year, so ₹1 lakh earns about ₹4,000 a year
The tool above doubles as a post office TD interest rate calculator and a post office fixed deposit interest rate calculator; those are the same product. There is no PPF scheme in post office calculator inside it because PPF needs yearly deposits. For postal life insurance, and anyone looking for a PLI scheme in post office calculator, there is no interest calculator, because returns come from yearly bonuses rather than a fixed rate.
After tax: what you keep
TD interest is taxable each year. On ₹5 lakh in a 5 year TD, yearly interest of ₹38,568 leaves about ₹30,854 at a 20% slab, or ₹26,998 at 30%, before cess. Only the 5 year deposit trims taxable income, and only for old regime filers. Details are on the 5 year FD page.
Tips before you deposit
- Split a large sum into several deposits so you can break one without touching the rest.
- Ask for the yearly interest to be credited to your savings account automatically.
- Check that the rate printed on your receipt matches the current FD rate.
- Add a nominee on day one.
Frequently asked questions
How is post office FD interest calculated?
Each year's interest is computed quarterly and paid once a year. On ₹1 lakh at 6.9% for one year, that is about ₹7,081.
What will ₹50,000 earn in a post office FD for 1 year?
About ₹3,540 at 6.9%.
Does the post office FD calculator include TDS?
No. It shows interest before tax and TDS.
Is the post office 1 year FD interest rate calculator the same for seniors?
Yes. The post office pays the same TD rate at every age.
Can I use this as a post office time deposit scheme calculator for old deposits?
Only if you change the rate to the one on your receipt. The calculator uses this quarter's rates by default.