> The amortization period is five years for domestic expenses and 15 years for foreign expenses. Additionally, for the first year of the amortization period, the expenses are “placed in service” at the midpoint of the tax year. Thus, the deduction in year one is only half the amount it will be in subsequent years.
https://www.claconnect.com/en/resources/articles/2023/a-cost...
> The amortization period is five years for domestic expenses and 15 years for foreign expenses. Additionally, for the first year of the amortization period, the expenses are “placed in service” at the midpoint of the tax year. Thus, the deduction in year one is only half the amount it will be in subsequent years.