4/10 net 40 EOM translates as O a 4 percent cash discount may be taken if paid in 10 days; if no cash discount is taken, the balance is due 40 days after the end of the month. a 4 percent cash discount may be taken if paid in 10 days; if no cash discount is taken, the balance is due 40 days after transaction is complete. a 10 percent cash discount may be taken if paid in three days; if no cash discount is taken, the balance is due in 40 days. a 4 percent discount may be taken on 10 percent of the purchase if the account is paid within 40 days after the end of the month