Tamilnad Mercantile Bank Special FD Schemes interest rates range between 6.60% and 6.90% p.a., and an extra 0.50% for seniors. These are secure, high-return investment options through exclusive 400 and 444-day tenures.

Guaranteed Plan
(By Insurance companies)Fixed Deposit
(Offered by Banks)Savings Account
(Post Office)TMB Special Fixed Deposit Schemes are specific tenure FDs, such as 400 days and 444 days, providing investors with enhanced returns and flexible maturity options. These tenures provide flexible investment options for depositors seeking short- to medium-term savings with stable interest income. You can check the Tamilnad Mercantile Bank FD rates before deciding on the tenure that best aligns with their financial goals.
Tamilnad Mercantile Bank offers competitive rates under its special deposit schemes for amounts below ₹3 crore:
The 400 Days Special Deposit suits customers aiming for liquidity and assured growth at the following FD rates:
| Category | Rate of Interest (% p.a.) |
| General Citizens | 6.90 |
| Senior Citizens | 7.40 |
*TMB FD Rates 400 Days Effective from 4 October 2025
The 444 Days Special FD remains one of TMB’s most preferred investment options due to its attractive yield and moderate lock-in period. Many customers look up the TMB 444 days FD interest rate before booking this deposit for optimal returns. These are:
| Category | Rate of Interest (% p.a.) |
| General Citizens | 6.60 |
| Senior Citizens | 7.10 |
*TMB FD Rates 444 Days Effective from 4 October 2025
Tamilnad Mercantile Bank’s Special Fixed Deposits come up with these standout features:
TMB’s special deposits are open to a broad range of investors, including:
To help investors understand the potential earnings from Tamilnad Mercantile Bank’s Special Fixed Deposits, the following examples demonstrate how interest and maturity values are calculated for different tenures and deposit amounts:
If an investor deposits ₹1,00,000 for 400 days at 6.90% p.a. (general citizen):
Simple Interest:
(₹1,00,000 × 6.90 × 1.095) / 100 = ₹7,556
Maturity Value: ₹1,07,556
Compound Interest (Quarterly):
A = ₹1,00,000 × (1 + 0.069 / 4)^(4 × 1.095)
A ≈ ₹1,07,580
Compound Interest Earned: ₹7,580
If a depositor invests ₹1,50,000 for 444 days at 6.60% p.a. (general citizen):
Simple Interest:
(₹1,50,000 × 6.60 × 1.216) / 100 = ₹12,049
Maturity Value: ₹1,62,049
Compound Interest (Quarterly):
A = ₹1,50,000 × (1 + 0.066 / 4)^(4 × 1.216)
A ≈ ₹1,62,090
Compound Interest Earned: ₹12,090
Interest earned on Tamilnad Mercantile Bank deposits is taxable under Income from Other Sources as per the Income Tax Act, 1961. Tax Deducted at Source (TDS) is deducted if annual interest exceeds ₹50,000 for individuals or ₹1,00,000 for senior citizens. The deduction rate is 10% when PAN is provided and 20% otherwise. Eligible customers can submit Form 15G or Form 15H to prevent TDS deduction, subject to income eligibility.
Tamilnad Mercantile Bank Special FD Schemes offer a secure, flexible, and rewarding savings option with guaranteed returns. Investors can compare the TMB 400 days FD interest rate and the TMB 444 days FD interest rate to select their preferred tenure. With added benefits such as loan facilities and auto-renewal, TMB’s Special FDs serve as a suitable choice for customers seeking stable returns with complete financial security.
*All savings are provided by the insurer as per the IRDAI approved
insurance plan. Standard T&C Apply
+ Trad plans with a premium above 5 lakhs would be taxed as per
applicable tax slabs post 31st march 2023
#Discount offered by insurance company
++Source - Google Review Rating available on:- http://bit.ly/3J20bXZ
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