Amounts paid for items needed in the business such as repairs, advertising, feed, seeds, fertilizer, etc.
Amounts paid for income-producing real estate, capital assets, equipment, machinery, and other durable goods required for the self-employment business. [Capital assets and durable goods are generally objects used in business that are expected to last a long time such as tractors, combines, buildings, etc.]
If the home is connected to the business property (farm), only the business portion of shelter expenses may be used as a deduction.
If the business meets office in the home requirements, the business portion of shelter expenses may be used as a deduction if the household requests it.