Post Office Time Deposit tax rules FY 2026-27: 80C deduction only on 5-year tenure, interest taxable, 80TTB for seniors. Choose the right TD tenure.
The Post Office Time Deposit (TD), also called the National Savings Time Deposit, is the India Post version of a fixed deposit. Available with tenures of 1, 2, 3, and 5 years, it is one of the simplest sovereign-backed fixed-income products in India. For FY 2026-27, the 5-year Post Office Time Deposit specifically qualifies for Section 80C deduction, while the 1-year, 2-year, and 3-year variants do not. Understanding which TD tenure delivers tax relief — and how the interest is taxed — helps you place this product correctly in your portfolio.
Tenures, deposits, and interest
- Tenures available: 1 year, 2 years, 3 years, and 5 years.
- Minimum deposit: ₹1,000; no upper limit; multiples of ₹100.
- Interest rate: notified quarterly by the Ministry of Finance, with the 5-year tenure typically commanding the highest rate.
- Compounding: quarterly, paid annually on the anniversary date.
- Eligible holders: individuals (single or joint up to three adults), minors through guardian, trusts/societies as specified.
- Premature withdrawal: not allowed within 6 months; subject to penalty thereafter.
Section 80C deduction — only for the 5-year TD
Section 80C(2)(xxi) of the Income-tax Act specifically allows deduction for any deposit for a period of five years with a notified post office account. The 5-year Post Office Time Deposit qualifies. Investments up to ₹1.5 lakh per year, aggregated with other 80C instruments, can be claimed as deduction under the old tax regime. Critically, the 1-year, 2-year, and 3-year Post Office Time Deposits are not eligible for 80C, even though they are issued by the same post office under similar terms. Do not confuse tenures when planning.
Tax treatment of interest
Interest on Post Office Time Deposit, regardless of tenure, is fully taxable as Income from Other Sources at the depositor's slab rate. India Post does not deduct TDS on Post Office TD interest, unlike bank fixed deposits where TDS applies above the threshold. The depositor must self-assess and pay advance tax in four instalments if the total tax liability exceeds ₹10,000 for the year. Failure attracts interest under Sections 234B and 234C.
Section 80TTB for senior citizens
Senior citizens aged 60 and above can claim Section 80TTB deduction up to ₹50,000 per year on aggregate interest income from deposits with banks, post offices, and co-operative banks, including Post Office Time Deposit interest. This deduction is available only under the old tax regime. It can be claimed in addition to the 80C deduction on the 5-year TD principal, making the 5-year TD especially attractive for seniors under the old regime.
Comparing 5-year Post Office TD with bank tax-saver FD
Both the 5-year Post Office Time Deposit and the 5-year bank tax-saver FD qualify for 80C. The differences lie in TDS treatment (post office does not deduct, banks do at 10 per cent above threshold), interest rate (the post office TD is often comparable or higher), and access (post office requires physical or India Post Savings Account interface; banks offer digital). Premature closure is restricted in both; the post office variant disallows withdrawal in the first 6 months and applies a penalty thereafter.
Reporting in the ITR
- Report annual TD interest under Income from Other Sources.
- Claim Section 80C in the year of deposit for the 5-year TD only, within ₹1.5 lakh ceiling under the old regime.
- Senior citizens claim Section 80TTB up to ₹50,000 under the old regime.
- Reconcile interest figures with AIS pre-filled data.
- Pay advance tax where total liability exceeds ₹10,000.
- Retain the TD certificate or passbook for at least 8 years.
Conclusion
The 5-year Post Office Time Deposit is the only Post Office TD tenure that qualifies for Section 80C — a critical distinction that many investors miss. Combined with the 80TTB deduction for senior citizens, it is a useful sovereign-backed instrument for the old-regime taxpayer. Shorter tenures of 1, 2, and 3 years should be evaluated purely on yield and liquidity, not on tax benefit.





