Residual Income Calculator

What is Residual Income?

Residual income refers to net income or unallocated cash flow remaining after paying all mandatory obligations and minimum capital costs. The concept applies both in corporate finance equity valuation and in personal budgeting and mortgage underwriting:

• Corporate Residual Income (EVA): Net accounting profit generated by a company in excess of the opportunity cost of equity capital.
• Personal Residual Income (Disposable Cash Flow): Discretionary income remaining after deducting taxes, living expenses, and fixed debt payments (mortgages, credit cards, student loans).

Formula for Corporate Equity Residual Income

In financial analysis, residual income measures economic profit. The formula is:

$$\text{Residual Income} = \text{Net Income} - \text{Equity Charge}$$

Where the equity charge represents the minimum required dollar return expected by equity investors:

$$\text{Equity Charge} = \text{Total Equity Capital} \times \left(\frac{\text{Cost of Equity \%}}{100}\right)$$

Personal Residual Income in Loan Underwriting

In personal financial management and mortgage approval (particularly for VA loans), lenders calculate monthly residual income to verify that a borrower will have sufficient cash remaining for food, utilities, health care, and child care after paying their monthly mortgage and debt obligations:

$$\text{Personal Residual Income} = \text{Gross Monthly Income} - (\text{Taxes} + \text{Living Expenses} + \text{Debt Obligations})$$

Why Residual Income Matters

For business valuation, positive residual income indicates that a firm is creating real economic value beyond its cost of capital. A negative residual income implies capital destruction, even if traditional net accounting profit appears positive. For individuals, high residual income provides financial independence, emergency savings buffering, and investment funding.