How do you write off a limited life intangible?

To write off a limited life intangible asset, you need to amortize its cost over its estimated useful life. This is done by systematically allocating the intangible asset's value as an expense on the income statement over each accounting period. The amortization expense is recorded, reducing the intangible asset's book value on the balance sheet until it reaches zero or is disposed of. It's important to follow the relevant accounting standards, such as GAAP or IFRS, when performing this process.