2. Self‑Employment, Business Expenses, In‑Kind Payments and Related Issues. Weekly Gross Income from self‑employment, operation of a business, rent, and royalties is defined as gross receipts minus ordinary and necessary expenses. In general, these types of income and expenses from self‑employment or operation of a business should be carefully reviewed to restrict the deductions to reasonable out‑of‑pocket expenditures necessary to produce income. These expenditures may include a reasonable yearly deduction for necessary capital expenditures. Weekly Gross Income from self‑employment may differ from a determination of business income for tax purposes.