The copyright purchased will be amortized over 6 years useful life.
$120,000 / 6 years = $20,000/annum
The patent purchased will be amortized over the useful life of 4 years
$54,000 / 4 years = $13,500 / annum
Goodwill is not amortized. But rather is checked for impairments.
Amortization is the systematic allocation of costs over the useful life of asset. The asset may be an intangible, if it is a tangible it is depreciated.
The life over which the asset is amortized is lower of useful and legal life, in both the cases the useful life was lower than the legal life.
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