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Weighted Average Cost of Capital

Blend debt and equity financing costs with an entered tax rate.

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Local calculations. Results are estimates, not professional advice.

WACC

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Educational estimate using your assumptions; no live rates, tax rules or investment recommendations. Returns can be negative and are not guaranteed.

Formula

Use WACC = E×rₑ/(D+E)+D×r_d×(1−τ)/(D+E). E and D are equity and debt market values. rₑ, r_d and τ are equity cost, debt cost and effective tax rate, each as a fraction.

Blend debt and equity financing costs with an entered tax rate.

Worked example

Equity market value
600
Debt market value
400
Equity cost (%)
10
Debt cost (%)
5
Effective tax rate (%)
25
WACC
7.5 %

Scope and limitations

Educational estimate using your assumptions; no live rates, tax rules or investment recommendations. Returns can be negative and are not guaranteed.

Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.

Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.

Formula version: 811c52c72ae4 · Example checked:

Methodology

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