allowable
adjective
/əˈlaʊəbl̩/ ukusallowed according to the laws or rules that control a particular area of activity:
allowable amount/level/limit The amounts of mercury present far exceeded the Japanese government's allowable level.
ACCOUNTING
relating to a cost or an amount that can be taken off your income or profit before the tax owed is calculated:
allowable deductions/costs/expenses
Training costs are allowable as a business deduction.