SG&A (alternately SGA, SAG, G&A or SGNA) is an initialism used in accounting to refer to Selling, General and Administrative Expenses, which is a major non-production cost presented in an income statement (statement of profit or loss). SG&A (alternately SGA, SAG, G&A or SGNA) is an initialism used in accounting to refer to Selling, General and Administrative Expenses, which is a major non-production cost presented in an income statement (statement of profit or loss).