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Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Tata CommunicationsNSE:TATACOMM -0.85%81 WACC % is 14.23% as of Jul. 17, 2026, which is 5% above its 10-year median of 13.53. GuruFocus rates NSE:TATACOMM with a GF Score™ of 81/100 and a GF Value™ of ₹2,048.07 (Modestly Undervalued). The stock has 8 warning signs investors should review. Among 371 Telecommunication Services companies, Tata Communications ranks worse than 91.37% on this metric.
As of today (2026-07-17), Tata Communications's weighted average cost of capital is 14.23%%. Tata Communications's ROIC % is 4.84% (calculated using TTM income statement data).
Tata Communications earns returns that do not match up to its cost of capital. It will destroy value as it grows.
For a comprehensive WACC calculation, please access the WACC Calculator.
Because it costs money to raise capital. A firm that generates higher ROIC % than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, Tata Communications's weighted average cost of capital is 14.23%%. Tata Communications's ROIC % is 4.84% (calculated using TTM income statement data).
Tata Communications earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Be Aware
1. GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding latest one-year quarterly average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together.
For companies that report quarterly, GuruFocus combines all of the most recent year's quarterly debt data from the beginning of the year to the year-end and calculates the average.
For companies that report semi-annually, GuruFocus combines all of the most recent year's semi-annual debt data from the start of the year to the year-end and calculates the average.
For companies that report annually, GuruFocus combines the beginning and ending annual debt data from the most recent year and then calculates the average.
2. The WACC formula discussed above does not include Preferred Stock. Please adjust if preferred stock is considered.
3. (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
4. GuruFocus uses the latest TTM Interest Expense divided by the latest one-year quarterly average debt to get the simplified cost of debt.
Related Terms
Tata Communications WACC % Historical Data
* Premium members only.
The historical data trend for Tata Communications's WACC % 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.
For the Telecom Services subindustry, Tata Communications's WACC %, along with its competitors' market caps and WACC % 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.
Tata Communications WACC % vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Tata Communications's WACC % distribution charts can be found below:
* The bar in red indicates where Tata Communications's WACC % falls into.
The weighted average cost of capital (WACC) is the rate that a company is expected to pay on average to all its security holders to finance its assets. The WACC is commonly referred to as the firm's cost of capital. Generally speaking, a company's assets are financed by debt and equity. WACC is the average of the costs of these sources of financing, each of which is weighted by its respective use in the given situation. By taking a weighted average, we can see how much interest the company has to pay for every dollar it finances.
WACC
=
E
/
(E + D)
*
Cost of Equity
+
D
/
(E + D)
*
Cost of Debt
*
(1 - Tax Rate)
1. Weights:
Generally speaking, a company's assets are financed by debt and equity. We need to calculate the weight of equity and the weight of debt.
The market value of equity (E) is also called "Market Cap". As of today, Tata Communications's market capitalization (E) is ₹524972.350 Mil.
The market value of debt is typically difficult to calculate, therefore, GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding the latest one-year quarterly average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together. As of Mar. 2026, Tata Communications's latest one-year quarterly average Book Value of Debt (D) is ₹126457.3667 Mil.
a) weight of equity = E / (E + D) = 524972.350 / (524972.350 + 126457.3667) = 0.8059
b) weight of debt = D / (E + D) = 126457.3667 / (524972.350 + 126457.3667) = 0.1941
2. Cost of Equity:
GuruFocus uses Capital Asset Pricing Model (CAPM) to calculate the required rate of return. The formula is:
Cost of Equity = Risk-Free Rate of Return + Beta of Asset * (Expected Return of the Market - Risk-Free Rate of Return)
a) GuruFocus uses 10-Year Treasury Constant Maturity Rate as the risk-free rate. It is updated daily. The current risk-free rate is 7.02%. Please go to Economic Indicators page for more information. Please note that we use the 10-Year Treasury Constant Maturity Rate of the country/region where the company is headquartered. If the data for that country/region is not available, then we will use the 10-Year Treasury Constant Maturity Rate of the United States as default.
b) Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. Tata Communications's beta is 1.6031.
c) (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
Cost of Equity = 7.02% + 1.6031 * 6% = 16.6386%
3. Cost of Debt:
GuruFocus uses latest TTM Interest Expense divided by the latest one-year quarterly average debt to get the simplified cost of debt.
As of Mar. 2026, Tata Communications's interest expense (positive number) was ₹7616 Mil. Its total Book Value of Debt (D) is ₹126457.3667 Mil.
Cost of Debt = 7616 / 126457.3667 = 6.0226%.
4. Multiply by one minus TTM Tax Rate:
GuruFocus uses the most recent TTM Tax Expense divided by the most recent TTM Pre-Tax Income to calculate the tax rate. The calculated TTM tax rate is limited to between 0% and 100%. If the calculated tax rate is higher than 100%, it is set to 100%. If the calculated tax rate is less than 0%, it is set to 0%.
The latest calculated TTM Tax Rate = 4316.2 / 14378.9 = 30.02%.
Tata Communications's Weighted Average Cost Of Capital (WACC) for Today is calculated as:
WACC
=
E / (E + D)
*
Cost of Equity
+
D / (E + D)
*
Cost of Debt
*
(1 - Tax Rate)
=
0.8059
*
16.6386%
+
0.1941
*
6.0226%
*
(1 - 30.02%)
=
14.23%
* 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.
Tata Communications (NSE:TATACOMM) has a WACC % of 14.23% as of Jul. 17, 2026. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on Tata Communications and its competitors. This is near median its historical median of 13.53. Over the past decade, Tata Communications' WACC % has ranged from 4.26 to 17.55. According to the industry distribution chart, Tata Communications ranks #339 out of 371 companies in the Telecommunication Services industry, placing it in the top 91.4%.
Is Tata Communications' WACC % too high?
Tata Communications' current WACC % of 14.23% is near median its 10-year median of 13.53. Over the past 10 years, this metric has ranged from a low of 4.26 to a high of 17.55. The Telecommunication Services industry median WACC % is 7.61. Tata Communications' value of 14.23% is 87% above this industry median. Based on the distribution chart, Tata Communications ranks #339 out of 371 companies in the Telecommunication Services industry, which is in the bottom quartile relative to peers. Overall, Tata Communications has a GF Score™ of 81/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Tata Communications' WACC % compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, Tata Communications ranks #339 out of 371 companies for WACC %. This places Tata Communications in the lower half of its industry. The industry median WACC % is 7.61. Tata Communications' value of 14.23% is 87% above this benchmark. Historically, Tata Communications' own WACC % has ranged from 4.26 to 17.55 over the past decade. While the company's 10-year median is 13.53 vs. the industry median of 7.61, Tata Communications has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good WACC % for a Telecommunication Services company?
The median WACC % among Telecommunication Services companies is 7.61, based on 371 companies in the industry. Companies in the top quartile (top 25%) have a WACC % significantly above this median, while those in the bottom quartile fall well below. However, WACC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Tata Communications's current WACC % of 14.23% is 87% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high WACC % mean?
A high WACC % can signal that a stock is expensive relative to its fundamentals. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on Tata Communications and its competitors. For the Telecommunication Services industry, the median WACC % is 7.61 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tata Communications's current WACC % is 14.23%, which is near median its own 10-year median of 13.53. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tata Communications stock overvalued right now?
Based on GuruFocus' analysis, Tata Communications (NSE:TATACOMM) is currently considered Modestly Undervalued. The stock's GF Value™ is ₹2,048.07, compared to a current price of ₹1,839.90 — trading 10.2% below its estimated fair value. The current WACC % is 14.23%, which is near median its 10-year median of 13.53 and 87% above the Telecommunication Services industry median of 7.61. Tata Communications' overall GF Score™ is 81/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is WACC % calculated?
WACC % is calculated from a company's financial statements. For Tata Communications (NSE:TATACOMM), the current WACC % is 14.23% as of Jul. 17, 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 Tata Communications (NSE:TATACOMM) Overvalued in 2026?
Based on GuruFocus' analysis, Tata Communications stock appears to be undervalued.
The current stock price of ₹1,839.90 is trading 10.2% below its estimated GF Value™ of ₹2,048.07.
GuruFocus considers Tata Communications to be Modestly Undervalued.
Key valuation signals for NSE:TATACOMM:
WACC %: 14.23% (near median its 10-year median of 13.53)
GF Value™: ₹2,048.07 vs. price of ₹1,839.90 (10.2% below fair value)
Industry Position: 87% above the Telecommunication Services median (#339 of 371)
No single metric tells the full story. See the NSE:TATACOMM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Tata Communications Ltd offers international and national voice and data transmission services, selling and leasing of bandwidth on undersea cable systems, internet connectivity services, and other value-added services comprising unified conferencing and collaboration services, managed hosting, mobile roaming and signalling services, transponder lease, television uplinking and other managed services, data center colocation services, network management and support, and other related services. The Group also undertakes leasing, letting out, licensing or developing immovable properties to earn income, including rental, lease and license income from land and buildings. Its segments are Data Services, Voice Solutions, and Real Estate, with Data Services generating maximum revenue.
81GF Score
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