Post Office Time Deposit Calculator

Calculate the maturity amount on a Post Office Time Deposit (POTD), compounded quarterly and paid out annually, across the 1, 2, 3 or 5-year tenure options.

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Works on all devices

Enter your deposit amount, tenure, and the applicable POTD interest rate to calculate the maturity amount, compounded quarterly.

Deposit amount *

₹

Interest rate (per annum) *

Current POTD rates by tenure: 1yr ~6.9%, 2yr ~7.0%, 3yr ~7.1%, 5yr ~7.5% — enter the rate for your chosen tenure.

Tenure (months) *

Your result

₹1,44,994.80

Maturity amount

Total interest earned₹44,994.80

AI explanation

Formula

Maturity amount = principal × (1 + rate/4)^(4 × years), compounded quarterly (India Post convention), even though interest is credited annually

Worked example

₹1,00,000 for 5 years at 7.5%

Worked example: ₹1,00,000 for 5 years at 7.5%
Field	Value
Deposit amount	100000
Interest rate (per annum)	7.5
Tenure (months)	60
Maturity amount	144994.8
Total interest earned	44994.8

Assumptions

POTD interest is compounded quarterly but credited to the account annually — this calculator computes the quarterly-compounded maturity value.
Rates vary by tenure and are revised quarterly by the Ministry of Finance — enter the rate for your chosen tenure using the help text as a guide.
The 5-year POTD also qualifies for Section 80C deduction, unlike the 1/2/3-year tenures.

Frequently asked questions

How is POTD interest compounded?

Quarterly — though it is actually credited to your account (or paid out, if you choose the payout option) annually. This calculator reflects the quarterly-compounded effective return.

Which POTD tenure gets an 80C tax deduction?

Only the 5-year Post Office Time Deposit qualifies for deduction under Section 80C — the 1, 2, and 3-year tenures do not.

Can I withdraw a POTD before maturity?

Premature withdrawal is allowed after 6 months, but at a reduced rate — withdrawals within the first year get only the Post Office Savings Account rate, while later withdrawals get the rate for the next-lower completed tenure.

Related calculators

Sources

Post Office Time Deposit Scheme — rules and current interest rates — Ministry of Finance, Government of India. Effective 01-06-1981, reviewed 13-09-2026.

This calculator provides an estimate only. POTD interest rates vary by tenure and are revised quarterly by the Ministry of Finance — verify the current rate for your chosen tenure before investing. Not personalized financial advice.

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