Official Postal Staff Gateway Tuesday, 29 September 2026 POSB Rates: Q4 (2025-26) Active
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Sovereign Government Returns Calculator

Post Office Small Savings Calculator

Calculate exact maturity returns, quarterly interest payouts, and Section 80C tax savings for all 10 Post Office Small Savings Schemes (POSB) with official interest rates.

Rates Effective: Q4 FY 2024-25 Switch to PLI Insurance Calculator →
100% Principal Security

Sovereign Backed by Ministry of Finance

Q4 2024-25 Yields
₹
Min: ₹500 | Max: No Limit Limit exceeded
Sovereign Security: Returns and principal backed by Government of India.
Calculation Results

Post Office Savings Account (SB) Yield Summary

Total Invested
₹1,00,000
One-time Principal
Interest Gain
+₹4,000
4.0% p.a.
Net Maturity Corpus
₹1,04,000
1 Year Tenure
Tax Status
Sec 80TTA Exemption
No TDS Deducted
Principal Invested: 96% Interest Earned: 4%
Year-by-Year Wealth Growth Breakdown
Year Deposit (Yr) Total Deposited Accrued Interest Closing Balance