When does a company capitalize a cost instead of expensing it, and why does it matter?

A company capitalizes a cost when the spending creates a benefit that lasts beyond the current period, usually more than a year. It expenses a cost when the benefit is used up now. Buying a machine is capitalized. Paying this month's rent or salaries is expensed. The idea behind it is matching: the cost should hit the income statement in the same periods as the revenue it helps produce. It matters because it changes the timing of profit, not the cash. Say a company buys equipment with a five-year life. If it capitalizes, the cost goes on the balance sheet as PP&E and the income statement shows depreciation each year. If it expensed the whole thing, pre-tax income would be lower in year one, then higher than the capitalized case in each of the next four years. Over the five years the total expense is the same. It also moves things around the statements. Capitalized spending shows up in cash flow from investing as capex, so cash flow from operations looks better. And the depreciation sits below EBITDA, so EBITDA is higher compared with expensing it.

A company capitalizes a cost when the spending creates a benefit that lasts beyond the current period, usually more than a year. It expenses a cost when the benefit is used up now. Buying a machine is capitalized. Paying this month's rent or salaries is expensed. The idea behind it is matching: the cost should hit the income statement in the same periods as the revenue it helps produce. It matters because it changes the timing of profit, not the cash. Say a company buys equipment for $100 with a five-year life. If it capitalizes, the $100 goes on the balance sheet as PP&E and the income statement shows $20 of depreciation each year. If it expensed the whole thing, pre-tax income would be $100 lower in year one, then $20 higher than the capitalized case in each of the next four years. So capitalizing makes year-one pre-tax income $80 higher. Over the five years the total expense is the same $100. It also moves things around the statements. Capitalized spending shows up in cash flow from investing as capex, so cash flow from operations looks better. And the depreciation sits below EBITDA, so EBITDA is higher by the full $100 in year one compared with expensing it. That's why I'd watch the judgment calls. The rules leave room at the edges, like software development costs, or a repair that might extend an asset's life. A company that capitalizes aggressively reports higher earnings and EBITDA today and pushes the cost into later years. If capex were rising much faster than revenue while margins improved, I'd ask what was being capitalized. Under US GAAP, research and development is generally expensed, with some software development costs as the exception.