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Post Office Monthly Income Scheme (POMIS) Calculator

Calculate Post Office Monthly Income Scheme (POMIS) monthly interest payouts, 7.4% p.a. rate, single and joint account limits, and tax slab impact.

Reviewed by Fintools Find Quantitative Finance & Engineering Team Updated August 2026 Zero Server Data Storage
📮 Sovereign Post Office Monthly Income Scheme (POMIS)

Your POMIS deposit of ₹900,000 (Single Account) at 7.40% p.a. generates ₹5,550 guaranteed monthly interest income (₹333,000 total interest over 5 years).

Model 5-year guaranteed monthly interest cash flows, single vs joint statutory deposit caps (₹9L / ₹15L), premature closure penalty rules, tax slab audits, and Bank FD comparisons.

Guaranteed Monthly Income₹5,550 / mo(₹3,33,000 total 5Y interest)

⚡ Smart POMIS Presets

Quick Scenario Presets1-Tap Auto Fill

1. POMIS Deposit & Account Type Parameters

₹
₹1,000Max ₹9,00,000
%
1.0%15.0%
%
0%50%
Guaranteed Monthly Income₹5,550 / moPaid monthly into Post Office / Bank account
Annual Interest Payout₹66,600 / yr12 monthly payouts aggregated
Total 5-Year Interest Payout₹3,33,000Over full 60-month tenure
Est. Annual Tax (At 30% Slab)₹19,980 / yrNet Monthly After-Tax: ₹3,885
⚖️ Guaranteed POMIS vs 5-Year Bank Fixed Deposit

POMIS Delivers ₹487 Extra Monthly Cash Flow!

Comparing Govt-notified 7.4% monthly POMIS against a benchmark 5-Year Bank Fixed Deposit monthly payout at 6.75% p.a.

POMIS Monthly Advantage+₹487 / mo

🔒 Statutory Premature Closure Penalty RulesNational Savings (MIS) Rules 2019

0 to 1 YearPremature closure NOT permitted by law.
1 Year to 3 Years2% principal penalty (₹18,000). Refund: ₹8,82,000.
3 Years to 5 Years1% principal penalty (₹9,000). Refund: ₹8,91,000.

📅 5-Year (60-Month) Interest Payout Cash Flow ScheduleAnnual Rollup Overview

YearMonthly Income PayoutAnnual Interest ReceivedCumulative 5Y InterestPrincipal Balance Returned
Year 1 (Month 12)₹5,550 / mo₹66,600₹66,600₹9,00,000
Year 2 (Month 24)₹5,550 / mo₹66,600₹1,33,200₹9,00,000
Year 3 (Month 36)₹5,550 / mo₹66,600₹1,99,800₹9,00,000
Year 4 (Month 48)₹5,550 / mo₹66,600₹2,66,400₹9,00,000
Year 5 (Month 60)₹5,550 / mo₹66,600₹3,33,000₹9,00,000 (Returned)
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Process Architecture

How Repayment & Lifecycle Works

Understanding the key phases of your loan or investment timeline

01

Select Account Ownership & Deposit Amount

Choose between Single Account (Max ₹9 Lakhs) or Joint Account (Max ₹15 Lakhs) and enter your proposed deposit.

02

Review Government Notified Monthly Rate

Verify the 7.4% p.a. government-notified interest rate paid directly into your post office or bank savings account every month.

03

Audit Monthly Cash Flow & Income Tax Slab

Calculate your exact guaranteed monthly payout, annual interest, 5-year total interest, and income tax slab estimate.

04

Compare Yields against Bank FDs & SCSS

Inspect guaranteed POMIS monthly payouts against 5-year commercial bank fixed deposits and Senior Citizens Savings Scheme (SCSS).

Target Borrowers

Who Should Use the Post Office Monthly Income Scheme (POMIS) Calculator?

Retirees Seeking Guaranteed Passive Income

Senior citizens and retirees looking for reliable, 100% sovereign-guaranteed monthly interest income.

Couples & Family Joint Account Holders

Joint account holders maximizing the ₹15 Lakh statutory joint deposit limit for ₹9,250 guaranteed monthly cash flow.

Conservative Monthly Yield Investors

Risk-averse depositors allocating capital into Post Office Small Savings with zero market volatility.

Fixed Income & Budget Planners

Households funding monthly living expenses, utility bills, or EMI payments through fixed monthly interest payouts.

Key Benefits

  • Secure a 100% government-guaranteed regular monthly income stream for 5 years
  • Maximize joint household passive income by depositing up to ₹15 Lakhs in joint accounts
  • Plan monthly household expenses, utility bills, or systematic investments with zero market risk
  • Compare monthly interest returns directly against commercial bank fixed deposits and SCSS

Platform Features

  • Flagship Post Office Monthly Income Scheme (POMIS 2019) monthly interest calculation engine
  • Single Account (₹9 Lakhs) vs Joint Account (₹15 Lakhs) statutory deposit cap auditor
  • Income Tax Slab Auditor estimating annual income tax liability on monthly interest receipts
  • Statutory Premature Closure Penalty Auditor (2% penalty between 1–3 years; 1% penalty between 3–5 years)
  • Sovereign POMIS vs Commercial Bank Fixed Deposit monthly yield comparison engine
  • Inflation-adjusted 5-year real purchasing power monthly income payout indicator
  • Interactive 60-month year-by-year cash flow schedule table
Mathematical Engine

Post Office Monthly Income Scheme (POMIS) Statutory Formulas

Standard TVM Formula
Formula Expression
\text{Monthly Interest} = \frac{\text{Deposit} \times r}{12}, \quad \text{Total 5Y Interest} = \text{Monthly Interest} \times 60
\text{Deposit} — Principal Deposit

Lump sum deposit (Capped at ₹9L for Single Account, ₹15L for Joint Account).

r — Notified POMIS Rate (% p.a.)

7.4% p.a. government-notified interest rate payable monthly.

\text{Monthly Interest} — Monthly Cash Flow Payout

Fixed interest credited to your savings account on the same day of each month.

\text{Premature Penalty} — Statutory Penalty

2% principal penalty between 1–3 years; 1% principal penalty between 3–5 years.

Case Studies

Practical Worked Scenarios

Example 1

Benchmark Case Study: Max Single Account Deposit (₹9 Lakhs @ 7.4% p.a.)

Max Single Account
Principal Deposit ₹900,000
Guaranteed Monthly Income ₹5,550/mo
Annual Interest Income ₹66,600/yr
Total 5-Year Interest Received ₹333,000
Key Takeaway: Depositing the statutory maximum ₹9 Lakhs in a single POMIS account generates ₹5,550 in guaranteed tax-assessed monthly cash flow, totaling ₹3,33,000 in interest over 5 years while preserving 100% of the ₹9 Lakh principal.
Example 2

Benchmark Case Study: Max Joint Account Deposit (₹15 Lakhs @ 7.4% p.a.)

Max Joint Account
Joint Principal Deposit ₹1,500,000
Guaranteed Monthly Income ₹9,250/mo
Annual Interest Income ₹111,000/yr
Total 5-Year Interest Received ₹555,000
Key Takeaway: A joint POMIS account with a ₹15 Lakh deposit generates ₹9,250 per month (₹1,11,000 per year) with zero market risk, returning the full ₹15 Lakhs at 5-year maturity.
⚠️

Common Mistakes to Avoid

Critical financial oversights that reduce long-term returns

✕

Exceeding personal statutory deposit caps: An individual's total deposit across all POMIS accounts (including their share in joint accounts) cannot exceed ₹9 Lakhs.

✕

Assuming POMIS interest is tax-free: Unlike PPF, POMIS monthly interest is fully taxable at your applicable income tax slab rate.

✕

Expecting Section 80C deductions: Principal investments into POMIS do NOT qualify for Section 80C tax deductions.

Frequently Asked Questions

Post Office Monthly Income Scheme (POMIS) Calculator FAQs

Clear answers to common questions about calculations and methodology

The Post Office Monthly Income Scheme (POMIS) Calculator is an interactive financial decision tool that computes guaranteed monthly interest income, 5-year total interest earnings, statutory single/joint deposit limit compliance, and income tax slab impacts.
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