Post Office Scheme Interest Planner - Small Savings Calculator
Calculate maturity values and periodic interest payouts across India Post's small savings schemes: POMIS, NSC, KVP, SCSS, and POTD.
AI Quick Summary
Definition & Purpose:
This calculator projects maturity amounts and periodic interest payouts across five India Post small savings schemes — POMIS, NSC, KVP, SCSS, and POTD — each of which follows its own government-set interest rate and payout structure.
When to Use:
Use this planner to estimate returns and compare payout structures across India Post's sovereign-backed small savings schemes before choosing one.
Key Takeaway Insights:
- The five schemes pay out in fundamentally different ways — POMIS and SCSS pay regular income (monthly and quarterly respectively) while the principal stays intact until maturity, whereas NSC, KVP, and POTD compound the interest into a single lump sum paid at maturity, with nothing paid out along the way.
- KVP is unique among these schemes in that its return isn't rate-based in the usual sense — it's defined by government notification to double the deposited principal over a fixed 115-month (about 9 years 7 months) period, regardless of how that implies as an annualized rate.
- POMIS and SCSS both have statutory maximum deposit limits (₹9,00,000 single / ₹15,00,000 joint for POMIS, ₹30,00,000 for SCSS) — depositing more than the limit isn't a calculation issue, but it is not permitted by the scheme rules themselves.
Scheme Settings
Maturity & Returns Summary
Yield Composition
Introduction
Post Office Scheme Interest Planner – Small Savings Guide
India Post offers several government-backed small savings schemes, each with its own tenure, interest rate, and payout structure. This planner covers five of the most widely used: POMIS, NSC, KVP, SCSS, and POTD.
How Each Scheme Calculates Returns
Post Office Monthly Income Scheme (POMIS) — 5-year tenure, interest paid monthly, principal returned at maturity:
Monthly Payout = (P × R / 12 × 100) qquad Total Interest = Monthly Payout × 60
National Savings Certificate (NSC) — 5-year tenure, compounds annually, paid at maturity:
Maturity Amount = P × ≤ft(1 + (R / 100))^5
Kisan Vikas Patra (KVP) — fixed 115-month tenure, doubles the principal by design:
Maturity Amount = P × 2
Senior Citizen Savings Scheme (SCSS) — 5-year tenure, interest paid quarterly, principal returned at maturity:
Quarterly Payout = (P × R / 4 × 100) qquad Total Interest = Quarterly Payout × 20
Post Office Time Deposit (POTD) — 1, 2, 3, or 5-year terms, compounds quarterly, paid at maturity:
Maturity Amount = P × ≤ft(1 + (R / 400))^4t
Worked Example: POMIS
A ₹9,00,000 deposit (the single-account statutory limit) into POMIS at 7.4% for 5 years:
- Monthly payout: dfrac9,00,000 × 7.412 × 100 = ₹5,550 per month
- Total interest over 60 months: ₹5,550 × 60 = ₹3,33,000
- The full ₹9,00,000 principal is returned at the end of the 5-year term, on top of the interest already received
Comparing the Five Schemes
Because these schemes pay out so differently, they aren't directly comparable by rate alone. On a ₹1,00,000 deposit:
| Scheme | Rate | Structure | 5-Year Outcome (₹1,00,000 deposit) |
|---|---|---|---|
| POMIS | 7.4% | Monthly payout, principal returned | ₹617/month, ₹37,000 total interest |
| NSC | 7.7% | Compounds annually, paid at maturity | ₹1,44,903.38 maturity value |
| KVP | — | Doubles over 115 months (~9.6 yrs) | ₹2,00,000 at maturity (longer tenure) |
| SCSS | 8.2% | Quarterly payout, principal returned | ₹2,050/quarter, ₹41,000 total interest |
| POTD (5-yr) | 7.5% | Compounds quarterly, paid at maturity | ₹1,44,994.80 maturity value |
What This Calculator Does Not Include
To compare against a bank fixed deposit instead of a government scheme, see the FD Calculator.
Formula & Variables Explained
This tool utilizes standard equations formulated under standard rules.
Variables:
- Input parameter: Values supplied to resolve the output formula.
How to Calculate (Step-by-Step)
- Input the required parameters into the form.
- Click the calculate or auto-compute option.
- The outputs will refresh instantly with step-by-step variables.
Worked Examples Calculation
1POMIS: ₹9,00,000 at 7.4% p.a., 5-Year Tenure
Scheme = POMIS, Principal = ₹9,00,000 (single-account statutory limit), Rate = 7.4% p.a.
Monthly Payout = (9,00,000 × 7.4) / 1200 = ₹5,550.00. Total Interest = 5,550 × 60 months = ₹3,33,000.00. Principal returned at maturity = ₹9,00,000.
Monthly Income = ₹5,550.00 | Total Interest Over 5 Years = ₹3,33,000.00 | Principal Returned = ₹9,00,000
2SCSS: ₹15,00,000 at 8.2% p.a., 5-Year Tenure
Scheme = SCSS, Principal = ₹15,00,000, Rate = 8.2% p.a.
Quarterly Payout = (15,00,000 × 8.2) / 400 = ₹30,750.00. Total Interest = 30,750 × 20 quarters = ₹6,15,000.00.
Quarterly Income = ₹30,750.00 | Total Interest Over 5 Years = ₹6,15,000.00 | Principal Returned = ₹15,00,000
Real-World Applications
Widely used in student curriculum, professional projections, and quick estimations.
Limitations & Common Mistakes
- Entering incompatible unit formats (e.g. Mixing Metric and Imperial).
- Typographical mistakes in numeric entry fields.
Uses the interest rates and statutory deposit limits configured in the planner, which the government revises periodically (typically quarterly) — actual rates at the time of deposit should always be confirmed directly with India Post before investing.
Frequently Asked Questions (FAQ)
Q:What is the maximum investment limit in the Monthly Income Scheme (POMIS)?
POMIS caps deposits at ₹9,00,000 for a single account and ₹15,00,000 for a joint account. These statutory limits exist to keep the scheme balanced across depositors; the calculator flags a deposit amount above the applicable limit.
Q:How long does it take for Kisan Vikas Patra (KVP) to double an investment?
KVP is designed by government notification to double the deposited principal over a fixed tenure of 115 months — 9 years and 7 months. This is a fixed maturity structure rather than a standard compounding rate applied over a chosen term.
Q:Can I claim tax benefits on Post Office Time Deposits?
Only the 5-year Post Office Time Deposit (POTD) qualifies for a tax deduction under Section 80C of the Income Tax Act, up to ₹1.5 Lakhs. The shorter 1-year, 2-year, and 3-year POTD terms do not carry this tax benefit.
Q:Are Post Office savings schemes safe?
Yes — all of these schemes are backed by the Government of India, making them sovereign-guaranteed investments with essentially no risk of default on either principal or interest, which is why they're commonly used by retirees and conservative savers.
References & Citations
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