Post Office TD Calculator

Compute your Post Office Time Deposit maturity — pick a 1, 2, 3 or 5-year tenure and the official GoI rate applies automatically with quarterly compounding.

Year-wise growth
Year Deposited Value at year end
1 ₹1,00,000 ₹1,07,714
2 ₹1,00,000 ₹1,16,022
3 ₹1,00,000 ₹1,24,972
4 ₹1,00,000 ₹1,34,611
5 ₹1,00,000 ₹1,44,995

What is a Post Office Time Deposit (POTD)?

A Post Office Time Deposit (POTD) — commonly known as the National Savings Time Deposit Account — is the government-guaranteed equivalent of a bank fixed deposit, administered through India Post's network under the Government Savings Promotion Act. Savers deposit a lump sum for a fixed tenure, earning sovereign-guaranteed interest backed by the Central Government.

POTD accounts are available in four distinct statutory tenures: 1 Year (6.9%), 2 Years (7.0%), 3 Years (7.1%), and 5 Years (7.5%). Interest is calculated using quarterly compounding, but paid out annually. The 5-year Time Deposit qualifies for income tax deductions under Section 80C.

Interest Structure, Annual Payouts & Tenure Slabs

Key operational and structural features of Post Office Time Deposits:

  • Quarterly Compounding with Annual Payout: Unlike bank cumulative FDs (where interest is reinvested until maturity), POTD calculates interest with quarterly compounding, but officially credits the annual interest payout directly into your Post Office Savings Account at the end of each financial year!
  • Four Tenure Slabs:
    • 1-Year TD: 6.9% per annum
    • 2-Year TD: 7.0% per annum
    • 3-Year TD: 7.1% per annum
    • 5-Year TD: 7.5% per annum (eligible for Section 80C tax deduction)
  • No Upper Ceiling: Minimum deposit is ₹1,000 (in multiples of ₹100), with no upper limit on the total amount you can invest.

The Post Office Time Deposit Compounding Formula

Annual Interest = P × [ (1 + r/4)⁴ − 1 ]

  • Annual Interest: Rupee interest credited to your savings account at the end of each completed year.
  • P — Principal amount deposited.
  • r — Sovereign notified interest rate (e.g. 7.5% → 0.075 for 5-Year TD).
  • Maturity Payout: At the end of the tenure, your original principal P is refunded in full.

A Worked Example: ₹5,00,000 Invested in a 5-Year POTD at 7.5% p.a.

Financial Breakdown for a ₹5 Lakh 5-Year Post Office Time Deposit:

  • Principal Invested: ₹5,00,000
  • Tenure: 5 Years
  • Interest Rate: 7.50% per annum (compounded quarterly)
  • Annual Interest Payout: ₹38,567.85 per year credited to your savings account
  • Total Interest Earned (5 Years): ₹1,92,839.26 (~₹1.93 Lakh)
  • Maturity Refund: ₹5,00,000 (Total Proceeds: ₹6,92,839)

Post Office Time Deposit Annual Income & Total Returns on ₹1,00,000 Deposit

POTD Tenure Slab Notified Rate Annual Interest Payout Total Interest Received Maturity Refund
1-Year TD 6.90% p.a. ₹7,081/yr ₹7,081 ₹1,00,000
2-Year TD 7.00% p.a. ₹7,186/yr ₹14,372 ₹1,00,000
3-Year TD 7.10% p.a. ₹7,291/yr ₹21,873 ₹1,00,000
5-Year TD (80C Tax-Saver) 7.50% p.a. ₹7,714/yr ₹38,568 ₹1,00,000

Values calculated using quarterly compounding with annual interest payout. The 5-year TD qualifies for Section 80C deductions.

Tax Deductions on 5-Year POTD & Zero TDS Rules

Tax implications governing Post Office Time Deposits:

  • Section 80C Deduction: Investments in the 5-Year Time Deposit qualify for income tax deduction up to ₹1,50,000 under Section 80C (Old Tax Regime). Tenures of 1, 2, and 3 years do not qualify for 80C.
  • Zero TDS: India Post does NOT deduct any TDS (Tax Deducted at Source) on annual interest payouts or principal maturity! You must declare the annual interest in your ITR under "Income from Other Sources".
  • Premature Closure: No deposit can be withdrawn before 6 months. If closed between 6 and 12 months, only Post Office Savings Account interest (4.0% p.a.) is paid. If closed after 1 year, interest is calculated at 2% below the applicable TD rate.

Post office TD questions, answered

Crucial answers on tenure slabs, Section 80C tax deduction, annual payout structure, zero TDS, and premature exit rules.

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