What Is Capital Expenditure?

Capital expenditure represents a company's investment in its future productive capacity. When a business buys new equipment, builds a new facility, or develops software, these investments are expected to generate economic benefits over multiple years, so the cost is spread across those years rather than expensed immediately.

CapEx is broadly categorised into growth CapEx (investments to expand capacity, enter new markets, or develop new products) and maintenance CapEx (spending required to maintain existing assets and operations). The distinction matters for valuation — growth CapEx is discretionary and drives future returns, while maintenance CapEx is effectively a required cost of doing business.

FP&A teams manage CapEx through a dedicated capital budget, typically approved annually with quarterly reviews. Large capital projects may require individual business cases demonstrating positive ROI or NPV. Smaller expenditures may be managed through a general CapEx envelope allocated by department.

The CapEx-to-OpEx distinction has significant implications for financial statements and tax treatment. CapEx appears on the balance sheet and flows through the P&L gradually via depreciation and amortisation, while OpEx hits the P&L immediately. The trend towards cloud computing and SaaS has shifted many technology costs from CapEx (buying servers) to OpEx (monthly subscription fees), changing the financial profile of technology investments.

For UK tax purposes, capital allowances rather than accounting depreciation determine the tax deduction. The current Annual Investment Allowance (AIA) provides 100% first-year relief on qualifying CapEx up to £1M, while full expensing offers 100% relief on qualifying plant and machinery without a cap.