The Post Office FD calculator gives you an instant projection of the interest and maturity value on a Post Office fixed deposit, helping you choose the right scheme before you invest.
Select how long you want to invest and your payout preference.
Best Rates
Here are the best rates available for you.
₹
Select tenure & payout preferences
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Select best rates
Find the best interest rates and payout
7.25%
For tenure of 2Y 1D to 3Y
7.00%
Highest
For tenure of 3Y 1D to 5Y
7.00%
For tenure of Tax saver FD (5Y)
Find the best interest rates and payout
7.75%
For tenure of 2Y 1D to 3Y
7.50%
Highest
For tenure of 3Y 1D to 5Y
7.75%
For tenure of Tax saver FD (5Y)
Custom interest rate
%
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View summary
Money you’ll receive on Maturity
₹0
Total investment
₹0
Total interest
₹0
Effective yield
0%
Interest rate:
0% per annum
Effective yield
0% per annum
Maturity amount
₹0
Total interest
₹0
Duration
2Y 0M 1D
Maturity date
18 Nov, 2027
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How to Use the Post Office FD Calculator?
The Post Office FD Calculator allows you to skip complex manual math and make calculations as easy as taps of a few keys on your phone or computer. You just need to input key details to instantly generate an accurate estimate of interest earnings and final maturity value, based on prevailing government-backed Post Office FD interest rates and compounding frequency.
Also known as the Post Office TD calculator, it works on the principle of compound interest, calculated quarterly. The formula is:
Quarterly Compound Interest Formula:
A = P (1 + r/4)4 × n
Where:
A
Maturity amount
P
Principal
r
Annual interest rate
n
Number of years
Example:
Suppose you deposit ₹1,00,000 at the current Post Office FD interest rate of 7.5% p.a. for 5 years.
A = 1,00,000 (1 + 0.075/4)^(4×5)
A = 1,00,000 (1.01875)²⁰
Maturity Amount = ₹1,44,994.80
Interest Earned = ₹44,994.80
Interest is compounded quarterly but paid out annually. At maturity, the full accumulated amount is paid to the investor and is fully taxable as part of their annual income at their applicable tax rate.
Benefits of Using the Post Office FD Calculator
Transparency and Confidence
The calculator shows your exact interest earned and maturity amount upfront, removing the guesswork from your investment planning.
Speed and Precision
It delivers instant, accurate results without manual calculation, saving time and avoiding errors.
Informed Financial Decision
You can test different principal amounts and tenures to see how returns change, making it easier to compare Post Office FD options against other investments.
Seamless Comparison
By using the post office term deposit calculator, you can find out the estimated returns on different types of FD investments. It makes FD rates comparison more useful and practical.
Features of the Post Office FD Calculator
Principal Input
Enter the exact amount you intend to invest to see how it grows over time.
Tenure Selection
Choose from the available tenures: 1, 2, 3, or 5 years, to align your investment with your financial goals.
Interest Rate Application
The calculator applies the current government-mandated interest rate for your selected tenure automatically.
Compounding Calculation
The calculator applies quarterly compounding, in line with how Post Office FD interest is actually calculated.
Post Office Fixed Deposit Investment Rules
The Post Office Fixed Deposit (FD), officially known as the Post Office Time Deposit (POTD), is a popular government-backed savings scheme in India. It is considered a very safe investment due to the sovereign guarantee. Here are the key investment rules for the scheme:
Deposit Amount and Tenure
Deposit: The minimum amount to open a Post Office FD is ₹1,000. Deposits must be made in multiples of ₹100. There is no upper limit on the amount.
Tenure: The scheme offers four fixed tenure options: 1 year, 2 years, 3 years, and 5 years.
Interest and Maturity Rules
Interest Calculation: Interest is compounded quarterly, but the payout is made annually to the investor.
Interest Rates: Post Office FD interest rates are set by the Government of India and are subject to quarterly revisions. The rate applicable at the time of opening the account remains fixed for the entire tenure.
Maturity: After your FD matures, the amount is payable to you. If you don't withdraw the funds, they continue to earn simple interest at the Post Office Savings Account rate for up to two years. Alternatively, you may apply to extend the deposit for the original tenure within a specified grace period after maturity.
Tax Benefits
Section 80C: Only the 5-year Post Office FD is eligible for a tax deduction under Section 80C of the Income Tax Act, up to a maximum of ₹1.5 lakh in a financial year.
Wrapping Up
The Post Office FD calculator gives you quick, accurate projections of your maturity amount and interest earned. It also helps you keep track of the scheme's specific rules, like the ₹1,000 minimum deposit and the Section 80C benefit on the 5-year tenure.
Yes. Post Office time deposits are considered one of the safest investment options, backed by the government’s guarantee. They offer fixed returns at decent rates, making them a reliable choice for investors who prioritise capital safety.
Q. What is the minimum amount to open a Post Office Fixed Deposit account?
The minimum amount required is ₹1,000. There is no maximum limit.
Q. How is the maturity amount calculated using the Post Office FD calculator?
You simply enter the investment amount, interest rate, and tenure. The calculator then computes and displays your estimated maturity value, based on the quarterly compounding used for Post Office FDs.
Q. Is the interest taxable in Post Office FD?
Yes. Interest earned on a Post Office FD is taxable as per your applicable income tax slab.
Q. Can I break my Post Office FD before maturity?
Yes, but only after 6 months from the date the fixed deposit (or, time deposit) was opened.
Q. Can a minor open a Post Office FD account?
Yes. Minors above the age of 10 can open a Post Office FD account in their own name.
Q. Can I extend my Post Office FD at maturity?
Yes, you can apply to extend your FD for the original tenure at the time of maturity.
A Monthly Payout FD Calculator is a specialized online tool designed to estimate the fixed, regular interest
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˜The insurers/plans mentioned are arranged in order of highest to lowest first year premium (sum of individual single premium and individual non-single premium) offered by Policybazaar’s insurer partners offering life insurance investment plans on our platform, as per ‘first year premium of life insurers as at 31.03.2025 report’ published by IRDAI. Policybazaar does not endorse, rate or recommend any particular insurer or insurance product offered by any insurer. For complete list of insurers in India refer to the IRDAI website www.irdai.gov.in
* Applicable for Titanium variant of Max Life Smart Fixed-return Digital (Premium payment of 5 years, Policy term of 10 years) and a healthy male of 18 years old paying Rs. 30,000/- monthly (exclusive of all applicable taxes)
** Fixed deposit rate applicable for 5 year's 1 day to
10 years for investment amount less< 2 Crore ( Not for senior citizens).
*** PPF interest rate applicable for 15 years
for investment amount upto 1.5 Lac
+ Trad plans with a premium above 5 lakhs
would be taxed as per applicable tax slabs post 31st march 2023
#Discount offered by insurance company
##The Guaranteed Returns are dependent on the policy term and premium term availed along with other variable factors. 7.4% rate of return is for an 18-year-old, healthy male for a policy term of 20 years and a premium term of 10 years with ₹5,00,000 annually installment premium. All plans listed here are from insurance companies’ funds.
++Source - Google Review Rating available on:- http://bit.ly/3J20bXZ