Live Computation Engine
Post Office Interest & Maturity Calculators
Rates: Q4 FY 2024-25
1. Post Office Savings Account (SB)
4.0% p.a.
Presets:
Estimated Annual Interest Yield
₹0
Principal₹1,00,000
Rate4.0%
Total / Yr₹1,04,000
Working Rule: Computed dynamically on the minimum balance maintained between the 10th and the end of the month at 4.0% p.a.:
$$\text{Annual Interest} = \frac{\text{Principal} \times \text{Rate}}{100}$$
2. National Savings Recurring Deposit (5-Yr RD)
6.7% p.a.
Presets:
Maturity Value (5 Years / 60 Mos)
₹0
Deposited₹3,00,000
Interest₹54,956
Rate (Qtrly)6.7%
Working Rule: 60 Monthly installments compounded quarterly at 6.7% p.a.:
$$\text{Maturity Sum} = P \times \frac{(1 + r)^n - 1}{1 - (1 + r)^{-1/3}}$$
3. Post Office Time Deposit (TD / FD)
6.9% p.a.
Presets:
Total Maturity Sum
₹0
Principal₹1,00,000
Interest₹0
Rate6.9%
Working Rule: Interest compounded quarterly and payable annually:
$$\text{Maturity Sum} = \text{Principal} \times \left(1 + \frac{\text{Rate}}{400}\right)^{4 \times \text{Years}}$$
4. Post Office Monthly Income Scheme (MIS)
7.4% p.a.
Presets:
Guaranteed Monthly Payout
₹0
Principal₹1,00,000
Total 5-Yr Payout₹37,000
Rate7.4%
Working Rule: Monthly credit directly to POSB account for 5 years at 7.4% p.a.:
$$\text{Monthly Interest} = \frac{\text{Principal} \times \text{Rate}}{12 \times 100}$$
5. Senior Citizen Savings Scheme (SCSS)
8.2% p.a.
Presets:
Quarterly Interest Return
₹0
Principal₹1,00,000
Annual Return₹8,200
Rate8.2%
Working Rule: Paid quarterly on scheduled 1st operational day of April, July, Oct & Jan at 8.2% p.a.:
$$\text{Quarterly Interest} = \frac{\text{Principal} \times \text{Rate} \times 3}{12 \times 100}$$
6. Public Provident Fund (PPF - 15 Years)
7.1% p.a.
Presets:
Maturity Corpus (15 Years)
₹0
Total Deposit₹22,50,000
Interest Earned₹18,18,209
Tax StatusEEE (Exempt)
Working Rule: 15 Annual contributions compounded annually at 7.1% with EEE tax exemption:
$$\text{Maturity Corpus} = F \times \frac{(1 + r)^t - 1}{r}$$
7. National Savings Certificate (NSC - 5 Years)
7.7% p.a.
Presets:
Maturity Value (5 Years)
₹0
Principal₹1,00,000
Total Interest₹44,903
Rate7.7%
Working Rule: Compounded annually at 7.7%, payable at the end of 5 years:
$$\text{NSC Maturity} = \text{Principal} \times \left(1 + \frac{\text{Rate}}{100}\right)^{5}$$
8. Kisan Vikas Patra (KVP — Doubles Money)
7.5% p.a.
Presets:
Guaranteed 2x Doubled Value
₹0
Principal₹1,00,000
Maturity Period115 Mos
Rate7.5%
Working Rule: Doubles your principal in exactly 115 months (9 years 7 months) at 7.5% p.a.:
$$\text{Maturity Payout} = \text{Principal} \times 2$$
9. Mahila Samman Savings Certificate (MSSC)
7.5% p.a.
Presets:
Maturity Value (2 Years)
₹0
Principal₹2,00,000
Interest Earned₹32,044
Rate7.5%
Working Rule: 2-Year tenure compounded quarterly at 7.5% p.a.:
$$\text{Maturity Return} = \text{Principal} \times \left(1 + \frac{\text{Rate}}{400}\right)^{8}$$
POSB
Savings Scheme
Scheme Details
Current Rate
4.0% p.a.
Tenure / Period
Ongoing
Deposit Limits
₹500 / No Limit
Tax Status
Sec 80TTA
Interest Calculation & Compounding Frequency
Calculated monthly on minimum balance between 10th and end of month.
Eligibility & Permissible Account Types
Single Adult, Joint A/B, Minor above 10 years, Guardian on behalf of minor.
Premature Closure & Deduction Rules
Can be closed anytime with nil penalty.
Income Tax Benefits & Exemptions
Interest up to ₹10,000 is tax-exempt under Section 80TTA.
Loan, Withdrawal & Additional Facilities
Cheque Book, ATM Card, Mobile Banking, PMJJBY / PMSBY / APY linkages.
Official Departmental Forms
Form SB-3 (AOF) & SB-7 (Pay-in-Slip)
Go to Forms Desk