Tamilnad Mercantile Bank (NSE:TMB) Effective Interest Rate on Debt %: 383.60% (As of Mar. 2026)

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NSE:TMB Tamilnad Mercantile Bank Ltd NSE:TMB
57 GF Score
Price ₹818.45
GF Value ₹562.31
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Tamilnad Mercantile Bank Effective Interest Rate on Debt %?

Tamilnad Mercantile Bank NSE:TMB +1.54% 57 Effective Interest Rate on Debt % is 383.60% as of Mar. 2026. GuruFocus rates NSE:TMB with a GF Score™ of 57/100 and a GF Value™ of ₹562.31 (Significantly Overvalued). The stock has 5 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Tamilnad Mercantile Bank's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was ₹33,837 Mil. Tamilnad Mercantile Bank's average total debt for the quarter that ended in Mar. 2026 was ₹8,821 Mil. Therefore, Tamilnad Mercantile Bank's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 383.60%.


Tamilnad Mercantile Bank  (NSE:TMB) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Tamilnad Mercantile Bank Effective Interest Rate on Debt % Related Terms


Tamilnad Mercantile Bank Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Tamilnad Mercantile Bank's Effective Interest Rate on Debt % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Tamilnad Mercantile Bank Effective Interest Rate on Debt % Chart

Tamilnad Mercantile Bank Annual Data
Trend Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Effective Interest Rate on Debt %
Get a 7-Day Free Trial 0.00 0.00 539.90 598.35 548.69

Tamilnad Mercantile Bank Quarterly Data
Mar21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Effective Interest Rate on Debt % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 619.02 623.30 358.97 280.51 383.60

Tamilnad Mercantile Bank Effective Interest Rate on Debt % Competitor Comparison

For the Banks - Regional subindustry, Tamilnad Mercantile Bank's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Tamilnad Mercantile Bank Effective Interest Rate on Debt % vs Banks Industry

For the Banks industry and Financial Services sector, Tamilnad Mercantile Bank's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Tamilnad Mercantile Bank's Effective Interest Rate on Debt % falls into.


NSE:TMB
57GF Score
Tamilnad Mercantile Bank Ltd NSE:TMB
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Tamilnad Mercantile Bank Effective Interest Rate on Debt % Calculation

Tamilnad Mercantile Bank's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Mar. 2025 )+Total Debt  (A: Mar. 2026 ))/ count )
=-1  *  -32921.454/( (5000+7000)/ 2 )
=-1  *  -32921.454/6000
=548.69 %

where

Tamilnad Mercantile Bank's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -33837.2/( (10641.8+7000)/ 2 )
=-1  *  -33837.2/8820.9
=383.60 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=10641.8 + 0
=10641.8

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 383.60% mean?
Tamilnad Mercantile Bank (NSE:TMB) has a Effective Interest Rate on Debt % of 383.60% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Tamilnad Mercantile Bank and its competitors.
Is Tamilnad Mercantile Bank's Effective Interest Rate on Debt % too high?
Tamilnad Mercantile Bank's current Effective Interest Rate on Debt % is 383.60%. Overall, Tamilnad Mercantile Bank has a GF Score™ of 57/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tamilnad Mercantile Bank's Effective Interest Rate on Debt % compare to competitors?
Tamilnad Mercantile Bank's Effective Interest Rate on Debt % of 383.60% can be compared against companies in the Banks industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for a Banks company?
A good Effective Interest Rate on Debt % depends on the Banks industry context. However, Effective Interest Rate on Debt % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Tamilnad Mercantile Bank and its competitors. Tamilnad Mercantile Bank's current Effective Interest Rate on Debt % is 383.60%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tamilnad Mercantile Bank stock overvalued right now?
Based on GuruFocus' analysis, Tamilnad Mercantile Bank (NSE:TMB) is currently considered Significantly Overvalued. The stock's GF Value™ is ₹562.31, compared to a current price of ₹818.45 — trading 45.6% above its estimated fair value. The current Effective Interest Rate on Debt % is 383.60%. Tamilnad Mercantile Bank's overall GF Score™ is 57/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Tamilnad Mercantile Bank (NSE:TMB), the current Effective Interest Rate on Debt % is 383.60% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Tamilnad Mercantile Bank (NSE:TMB) Overvalued in 2026?

Based on GuruFocus' analysis, Tamilnad Mercantile Bank stock appears to be overvalued. The current stock price of ₹818.45 is trading 45.6% above its estimated GF Value™ of ₹562.31. GuruFocus considers Tamilnad Mercantile Bank to be Significantly Overvalued.

Key valuation signals for NSE:TMB:

  • Effective Interest Rate on Debt %: 383.60%
  • GF Value™: ₹562.31 vs. price of ₹818.45 (45.6% above fair value)
  • GF Score™: 57/100 with 5 warning signs

No single metric tells the full story. See the NSE:TMB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tamilnad Mercantile Bank Business Description

Other Exchanges 543596:India
Address No. 57, Victoria Extension Road, Tuticorin, TN, IND, 628 002
Tamilnad Mercantile Bank Ltd is engaged in providing a wide range of banking & financial services involving retail, corporate banking and para-banking activities in addition to treasury and foreign exchange business. The company has a portfolio of advances and deposits from a diversified customer base including retail customers, agricultural customers, and MSMEs. The segments of the bank are Treasury, Corporate and Wholesale banking, Retail banking, and Other banking Operations. It generates the majority of its revenue from the Retail banking segment.
57GF Score

Get the complete analysis for NSE:TMB

Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₹818.45
Price
₹562.31
GF Value