WACC is the weighted average cost of capital, which is the calculation of the cost of the capital. To know more about the formula and get a fair idea about the examples, keep reading on.

The formula is – WACC = V E​∗ Re + V D​∗ Rd ∗ (1 − Tc)​


  • t = tax rate
  • D = cost of the debt
  • w = the respective weight of the debt, preferred stock/equity, & the equity in the total capital structure
  • E = cost of equity
  • P = cost of the preferred stock/equity

For the debt capital, the cost happens to be either the actual interest of bonds or the comparable debt’s interest rate for a similar business. As a matter of fact, you can even reduce the cost of the debt by this – (1 – tax rate). This is due to the fact that the interest payments on the debt happen to be tax-deductible. In addition to that, the tax break also lowers the effective cost of the debt.

As for the equity funds, the cost of the capital happens to be more complicated. This is due to the fact that there happen to be absolutely no mentioned rate for interest. As a matter of fact, for the preferred stock, one can even calculate the cost. This is due to the fact that the dividend rate of the shares is taken here. By using the CAPM, one can even estimate the cost of the equity. And in accordance with the capital cost, the scale from the cheapest to the most costly runs debt, what’s more, preferred is equity.

How Will You Be Able To Calculate The WACC?


In order to calculate WACC or Weighted Average Cost of Capital, all that you require doing is to follow the below-offered points. To know more about the points, you would have to keep reading on.

  • First off, you are required to multiply the cost of every capital component by the respective proportional weight.
  • After which, you would have to take the sum of this particular result.
  • Then, all that is left for you is to multiply the result by 1 – the Corporate tax rate.


  • Rd = the cost of debt
  • Re = the cost of equity
  • E = market value of the firm’s equity
  • V = E + D = i.e. the total market value of the financing of the firm (i.e. the equity and the debt)
  • D = The market value of the debt of the firm
  • Tc = The corporate tax rate
  • D/V = percentage of the financing which is debt
  • E/V = percentage of the financing which is equity

How will you manage to calculate WACC or Weighted Average Cost of Capital?

WACC or the weighted average cost of the capital is also calculated in the Excel sheet. Here, the biggest part happens to be sourcing the exact and correct data in order to plug into the respective model.

What WACC Implies?

WACC happens to be the average of costs of the financing types each of them gets is weighted by the proportionate use in the given situation. You can determine the interest that the company is owing for every dollar by taking the weighted average in this particular way. As a matter of fact, debt and equity are the components which constitute the capital funding of the company. To put it simply, the lenders, as well as equity holders, always expect to receive some returns on funds or capitals that they have already offered. As the capital cost gets the return that owners and debt holders who expect it, the WACC indicates just the return that stakeholders (both equity owners as well as lenders) might expect in receiving these. To put it more simply, WACC happens to be the great opportunity of an investor for the cost of taking on some risks of investing their money in that particular company.

An association’s WACC is the general required return for a company. Due to this particular reason, the organization executives will only and frequently utilize the WACC inside so as to decide financial plausibility of mergers as well as other expansionary openings. WACC happens to be the rebate rate which is utilized for the money streams with some risk taken.

To help comprehend WACC, one must always pay more attention in thinking about the organization as the pool of money. Cash enters the pool from two separate sources: equity and debt. The things earned through business activities are not viewed as the third source. This is due to the fact that after an organization pays all the debt, the organization holds any extra cash that isn’t come back to investors just on behalf of the investors or known as shareholders.

Examples of Using WACC:

Say, for example, an organization yields the respective returns of about 20% and has the WACC of about 11%. This implies the organization is yielding 9% returns on each dollar the organization contributes. For every dollar spent, the organization is making 9 percent of significant worth. Contrarily, if the return of the organization is not exactly WACC, then the organization is losing esteem. In case the company has already returned a total of about 11% and a WACC of about 17%, then it is just losing six percent for each dollar spent, showing that potential financial specialists would be best off putting the cash somewhere else.

The expense of debt gets determined if you divide the interest cost of the organization by the debt load. For Walmart’s situation, the ongoing financial year intrigue cost is about $2.33 billion. Hence, its expense of debt is about 4.7%, or about $2.33 billion / $50 billion. The rate of tax can be determined if you divide income tax cost by income before taxes.

Now that you know everything about WACC with appropriate examples, you can do the job wonderfully.