Cost of Capital

Cost of capital is the minimum rate of return a company must earn on its investments to satisfy its debt holders, equity investors, and other capital providers. It serves as the hurdle rate for capital budgeting decisions and is most commonly expressed as the weighted average cost of capital (WACC), which blends the after-tax cost of debt and the cost of equity based on the company's target capital structure. For mid-market companies, WACC typically ranges from 8–15%, with the cost of equity (calculated using the Capital Asset Pricing Model) usually between 10–18% and the after-tax cost of debt between 4–8%. A company's cost of capital is influenced by its credit rating, industry risk profile, leverage ratio, prevailing interest rates, and market conditions. When a project's expected return exceeds the cost of capital, it creates shareholder value; when it falls below, the project destroys value regardless of accounting profitability. In working capital management, the cost of capital determines the true expense of carrying receivables — if DSO is 60 days and WACC is 12%, every $1 million in outstanding receivables costs $19,726 in capital charges annually. This directly impacts early-payment discount decisions: a 2/10 net 30 discount represents a 36.7% annualized return, far exceeding most companies' cost of capital. Quadient AP enables systematic capture of these early-payment discounts by accelerating invoice processing, while Quadient AR reduces receivables carrying costs through faster cash application and automated dunning. Understanding cost of capital is fundamental to evaluating accounts payable timing strategies, credit extension policies, and build-versus-buy technology decisions.