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Definition
Amortisation spreads the cost of an intangible asset — such as goodwill, software or a licence — over its useful life, in the same way depreciation spreads the cost of physical assets.
In plain terms
Buy something valuable but not physical — a brand, a software licence, goodwill from an acquisition — and its cost is written off gradually rather than all at once.
Why it matters for your company
Amortisation reduces reported profit without a cash outflow, and its tax treatment for intangibles like goodwill has specific rules. Understanding it matters when reading the accounts of acquisitive or software-heavy businesses.
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