What is the general ledger journal entry to write off accounts payable checks?

If you've made a payment on the vendor account which was previously incurred the entry would be: Debit: Accounts Payable; Credit: Cash If you're trying to write-off an unpaid accounts payable the entry would be: Debit: Accounts Payable; Credit: Expense Settlement Account (Contra-Expense account on the P&L that will flow through to Retained Earnings.