Include all ordinary and necessary business expenses not deducted elsewhere on Schedule C. List the type and amount of each expense separately in the space provided. Enter the total on lines 48 and 27a. Do not include the cost of business equipment or furniture, replacements or permanent improvements to property, or personal, living, and family expenses. Do not include charitable contributions. Also, you cannot deduct fines or penalties paid to a government for violating any law.
For details on business expenses, see Pub. 535.