₹5 Lakh FD vs Post Office MIS: Where will you get more interest for 5 years? Know the complete accurate calculation of earning on ₹ 5 lakh


For middle-class families, senior citizens and risk-averse conservative investors, keeping their hard-earned money safe is the first priority. When it comes to investing a lump sum of ₹5,00,000 (₹5 lakh), the two most trusted government/institutional options in the Indian market are Bank Fixed Deposit (Bank FD) and Post Office Monthly Income Scheme (POMIS).

Both the schemes offer complete capital protection and fixed returns, but the way they work, the interest payout cycle and the total return mathematics are completely different. While bank FDs give you the option of lump sum wealth creation, post office MIS provides tied-in, guaranteed pension-like income every month.

Before taking an investment decision, it is important to understand the main differences between the two schemes:










scale Post Office MIS (POMIS) Bank Fixed Deposit (Cumulative FD)
government guarantee 100% Sovereign Guarantee by Government of India Full Insurance up to ₹5 lakh under RBI’s DICGC
Tenure necessarily 5 year From 7 days to 10 years (flexible)
Interest Rate (Annual) 7.40% per annum (Simple Interest) 6.50% – 7.25% (Quarterly Compounding)
interest payment cycle Every month directly into savings account (Monthly) Lump sum or monthly/quarterly on maturity
maximum investment limit ₹9 lakh (single) / ₹15 lakh (joint) no maximum limit
Pre-Mature Withdrawal Permission with penalty after 1 year Possible at any time by deducting penalty (0.50% – 1%)

Government fixed interest rate on Post Office Monthly Income Scheme (POMIS) 7.40% per annum Is. The interest received in this is not compounded, but is credited to the investor’s post office savings account or bank account every month in the form of simple interest.

Detailed calculation for 5 years:

  • Total Investment Amount (Principal): ₹5,00,000

  • Applicable interest rate: 7.40% per annum

  • Annual Interest: ₹5,00,000 × 7.40% = ₹37,000

  • Monthly Pension/Income: ₹37,000 ÷ 12 = ₹3,083.33 (approximately ₹3,083 per month)

  • Total interest earning in 5 years (60 months): ₹3,083.33 × 60 = ₹1,85,000

  • Principal to be returned after 5 years: ₹5,00,000

That is, on completion of the period of 5 years, you get back your entire principal amount of ₹ 5 lakh safely and you can invest the total amount during these 5 years. ₹1,85,000 Have earned regular monthly income of Rs.

Interest in bank FD is calculated on quarterly compounding basis. if you Cumulative FD If you choose, the interest gets added to the principal amount and after 5 years you get a huge lump sum amount.

Currently major banks are offering interest ranging from 6.50% to 7.10% to general citizens and 7.00% to 7.60% to senior citizens on a tenure of 5 years.

1. General Citizen (Average rate 7.00% pa – compounding quarterly)

  • Total investment amount: ₹5,00,000

  • Total interest earned in 5 years: ₹2,07,390

  • Maturity Value after 5 years: ₹7,07,390

2. Senior Citizen (Senior Citizen Rate 7.50% pa – Quarterly Compounding)

  • Total investment amount: ₹5,00,000

  • Total interest earned in 5 years: ₹2,24,974

  • Maturity Value after 5 years: ₹7,24,974

(Note: If you take a non-cumulative i.e. monthly payout FD in the bank, then the monthly interest rate is calculated on the discounted factor and at the rate of 7.00%, you get around ₹ 2,880 to ₹ 2,900 every month.)

Comparing the numbers leads to this conclusion:







type of plan interest rate Total interest profit in 5 years Net value at maturity
Post Office MIS (Monthly Income) 7.40% ₹1,85,000 ₹5,00,000 (Principal Refund)
Bank Cumulative FD (General) 7.00% ₹2,07,390 ₹7,07,390
Bank Cumulative FD (Senior Citizens) 7.50% ₹2,24,974 ₹7,24,974

Main differences: If you look at the total interest earning, due to the compounding effect in bank cumulative FD, you will get Higher profits from ₹22,390 to ₹39,974 Get it. But if you need fixed cashflow every month for household expenses or medicines, Post Office MIS offers the highest liquidity of ₹3,083 every month.

  • Post Office MIS: TDS is not deducted in this. However, the monthly interest received is added to the investor’s annual income and is taxable as per his income tax slab.

  • Bank FD: TDS is deducted on bank FD. Banks deduct 10% TDS if the interest exceeds ₹50,000 (general citizens) or ₹1,00,000 (senior citizens) in a financial year. To prevent this, eligible individuals with zero tax liability can submit Form 15G or 15H.

  • Section 80C Exemption: Tax exemption under section 80C is not available in normal 5 year bank FD or post office MIS. Section 80C exemption of ₹1.5 lakh is available only on ‘Tax Saver Bank FD’ or ‘Post Office 5-Year Time Deposit (TD)’.

  • Choose Post Office MIS if: You are retired or you need a guaranteed income to meet your monthly expenses. If you want, you can also avail the benefit of double compounding by getting the monthly interest of ₹ 3,083 received from the post office auto-credited in the RD of the post office.

  • Choose Bank Cumulative FD if: You have no immediate need for this money or interest for the next 5 years and your main objective is to grow the capital of ₹5 lakh to create a corpus of more than ₹7 lakh.