To be deductible, a business expense must be both ordinary and necessary. An ordinary expense is one that is common and accepted in your trade or business. A necessary expense is one that is helpful and appropriate for your trade or business. An expense does not have to be indispensable to be considered necessary.
It is important to separate business expenses from the following expenses:
- The expenses used to figure the cost of goods sold,
- Capital Expenses, and
- Personal Expenses.