What is a Post Office MIS calculator?
A Post Office Monthly Income Scheme (MIS) calculator estimates the monthly interest you can earn on a lump-sum deposit at India Post. POMIS pays interest every month while your principal stays locked for five years; at maturity you get the full deposit back.
Enter your investment amount and the applicable annual interest rate. The tool shows monthly income, annual interest, total interest over the lock-in, and maturity value (principal plus cumulative interest credited as payouts). Rates are set quarterly by the government—adjust the field to match the latest notification.
How can a Post Office MIS calculator help you?
Retirees and conservative savers often park a lump sum in POMIS for predictable monthly cash flow. The maths is simple, but a calculator saves you from dividing annual interest by twelve and totalling five years of payouts by hand.
- See monthly income before opening an account at the post office.
- Check whether your deposit fits single-account (₹9 lakh) or joint-account (₹15 lakh) limits.
- Compare POMIS payouts with bank FD interest using the FD calculator or lump-sum growth in the NSC calculator.
How does this Post Office MIS calculator work?
POMIS pays simple interest on the full deposit each year. Monthly income is one-twelfth of annual interest; total interest over the scheme equals annual interest multiplied by the five-year tenure. Principal is returned at maturity—this tool does not reinvest monthly payouts.
Monthly Income = (Investment × Rate) / 12
Where –
| Investment | Lump-sum deposit in the MIS account |
|---|---|
| Rate | Annual interest rate in percent (e.g. 7.4) |
Annual interest = Investment × Rate / 100; Total interest = Annual interest × 5 years
Worked example
Deposit ₹1,50,000 in Post Office MIS at 7.4% p.a. Monthly income = (1,50,000 × 7.4) / 12 ≈ ₹925. Annual interest is ₹11,100; over five years you receive about ₹55,500 in total interest while your ₹1,50,000 principal is returned at maturity.
At the single-account ceiling of ₹9,00,000 with the same rate, monthly income is roughly ₹5,550 and total interest over five years is about ₹3,33,000.
How to use this Post Office MIS calculator
Enter investment amount (₹1,000 minimum; up to ₹9,00,000 for a single holder or ₹15,00,000 for a joint account) and the annual interest rate. Tenure is fixed at five years. Results update instantly as you adjust sliders.
For compounded post office savings that pay at maturity, try the NSC calculator. For long-term tax-free growth, compare with the PPF calculator.
What this calculator does not include
Tax on interest (fully taxable as income), TDS rules, premature closure penalties, auto-credit to linked post office savings account, and future rate revisions after account opening are not modeled. Figures are illustrative estimates for planning—not guaranteed returns or tax advice. Confirm current scheme rules on India Post or with a tax professional before investing.
Frequently asked questions
What is the Post Office MIS lock-in period?
POMIS has a fixed maturity of five years from the date of opening. Premature withdrawal is allowed only under specified conditions and may carry a penalty on interest already paid.
What is the minimum and maximum investment in POMIS?
The minimum deposit is ₹1,000. A single account can hold up to ₹9,00,000; a joint account can hold up to ₹15,00,000. Deposits must be in multiples of ₹1,000.
Is Post Office MIS interest taxable?
Yes. Interest received each month is taxable as income in your hands under current rules. There is no Section 80C deduction on the deposit. TDS may apply above prescribed thresholds—check the latest IT and post office guidelines.
How is POMIS different from NSC or FD?
POMIS pays monthly interest and returns principal at five years. NSC compounds interest and pays a lump sum at maturity. Bank FDs may offer different compounding frequencies and premature withdrawal rules. Use this site's NSC and FD calculators to compare on the same deposit amount.