What is Post Office MIS Calculator?
Post Office MIS Calculator helps you work out Post Office MIS monthly interest from the deposit and rate.
The main result is monthly interest payout, with a breakdown of total interest over term and principal repaid at maturity. The formula, example and assumptions below explain how to interpret it.
How to use Post Office MIS Calculator
Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.
- Gather deposit amount (₹), applicable annual interest rate (%) and deposit term in years. Use values from the same situation or reporting period.
- Replace the example deposit amount with your own value, then complete the other fields. Check the displayed units.
- Select Calculate and read monthly interest payout with its result breakdown. Change one input and calculate again to compare a second scenario. Reset restores the original example.
- Enter deposit amount in ₹, at least 0. Decimals are accepted.
- Enter applicable annual interest rate in %, at least 0 and at most 100. Decimals are accepted.
- Enter deposit term in years, at least 1 and at most 10. Use a whole number.
Post Office MIS Calculator: a worked example
With the inputs below, the result is ₹3,083.33 (monthly interest payout). Follow the example, then replace these illustrative values with your own.
| Input or output | Example value |
|---|---|
| Deposit amount (₹) | ₹5,00,000 |
| Applicable annual interest rate (%) | 7.4 % |
| Deposit term in years | 5 |
| Monthly interest payout | ₹3,083.33 |
| Total interest over term | ₹1,85,000 |
| Principal repaid at maturity | ₹5,00,000 |
Understanding the Post Office MIS result
Read monthly interest payout alongside total interest over term and principal repaid at maturity. These describe different parts of the same calculation.
Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.
- Example Total interest over term: ₹1,85,000
- Example Principal repaid at maturity: ₹5,00,000
Post Office MIS Calculator: assumptions and common mistakes
A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.
- Projection using the rate you enter, not a guaranteed return or live product quote. Unless stated otherwise, taxes, fees and inflation are excluded.
- Assumes interest is paid out, not reinvested. Product eligibility, deposit limits and premature-closure penalties are not evaluated.
- A projected return is an assumption. Check whether fees, tax and inflation are included before comparing products.
For wider guidance, visit SEBI Investor Education. The formula and scope of this specific tool are stated on this page.
