What is Amortization?

Amortization is spreading a cost across time: paying off a loan in scheduled installments, or writing off an intangible asset a slice at a time.

How does amortization work?

Two versions, one idea. A loan schedule splits every payment into interest and principal, interest heavy at the start and principal heavy at the end. Asset amortization takes something with no physical form, a patent, capitalized software, an acquired customer list, and expenses part of it each period over its useful life. Depreciation does the same job for physical things.

Why does amortization matter?

It decides how your numbers read. Under accrual basis accounting a capitalized cost hits the income statement slowly while the cash left the bank at once, so a founder watching only net income can miss a cash problem. It is also the A in EBITDA, which exists mostly to strip these non cash charges back out.

Where did amortization come from?

The word carries an old sense of killing something off, in this case a debt, and it entered accounting through lending long before software existed. The business definition now covers both loans and intangibles.

How do you handle amortization well?

Ask your accountant which costs get capitalized instead of expensed, because that choice moves your margin. Keep the schedule for every loan so you know the principal balance, not just the payment. When you buy a company, ask how much of the price becomes amortizable intangibles, since it will shape reported earnings for years after the deal closes.

Bottom line: Amortization spreads the cost on paper long after the cash has already gone.

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