Post Office Time Deposit Calculator
Calculate interest on an India Post Office Time Deposit (1, 2, 3 or 5 years).
About the Post Office Time Deposit Calculator
Post Office Time Deposits are government-backed fixed deposits. Rates are set each quarter by the Ministry of Finance; for October–December 2026 they're unchanged at 6.9% (1 year), 7.0% (2 years), 7.1% (3 years) and 7.5% (5 years). Interest is calculated quarterly and paid annually, and the rate is locked for the whole term. The 5-year deposit qualifies for Section 80C in the old regime. Minimum deposit is ₹1,000 with no upper limit.
The formula
Yearly interest = P × [(1 + r ÷ 4)⁴ − 1]
Worked example
Example: Interest per year = ₹9,418
- Inputs: Deposit: ₹1,10,000; Term: 5 years; Interest rate: 8.3 % a year.
- Formula: Yearly interest = P × [(1 + r ÷ 4)⁴ − 1]
- Result: Interest per year = ₹9,418
Questions people ask
Can I withdraw early?
After 6 months; before 1 year you get savings-account interest, and later with a lower rate.
Is TDS deducted?
Not by the Post Office on TD interest, but it's taxable.
Sources
The rules and rates this calculator uses come from the official pages below. Its results are estimates, not an official determination, and rules change, so check the latest figures there before you act on them.