A debit is an entry on the left side of a ledger account under double-entry bookkeeping, where each account has a left side for debits and a right side for credits (IRS Publication 583, Starting a Business and Keeping Records, Rev. December 2024). The word names a side, not a direction and not a sign, so whether a debit raises or lowers an account depends on the kind of account it lands in.
What a Debit Does to an Account
Asset and expense accounts increase on the debit side, and liability, equity and revenue accounts decrease on it. A debit does opposite things depending on where it lands, which is why the side has to be read together with the account it sits in.
Federal accounting writes that expectation down account by account. Every account in the US Standard General Ledger carries a normal balance, meaning the side it is expected to hold its balance on, and Accounts Receivable and Operating Expenses/Program Costs are marked debit while Accounts Payable, Revenue From Services Provided and Cumulative Results of Operations are marked credit (Treasury Financial Manual, USSGL Part 1 Section II, Accounts and Definitions, fiscal 2026). The mark belongs to the account and not to the account group, and several accounts sitting in the net position group alongside Cumulative Results of Operations are marked debit in that same bulletin.
Why that pattern holds, the full assignment by account type, and the contra accounts deliberately parked on the opposite side are in debit vs credit.
Debit as a Noun, a Verb and a Modifier
The word does three jobs in a firm’s books.
As a noun, a debit is the entry itself, the amount written on the left of an account, and debits is the whole set of those entries, which is why a bookkeeper talks about the debits agreeing with the credits.
As a verb, to debit an account is to make that entry, so debiting an account and posting to its left side describe one act. The verb is usually passive in written guidance: the Internal Revenue Manual, setting out the account that provides internal control and accountability for disbursement losses, says that when relief is granted this account will be debited to provide credit to account 4910, Disbursement Loss (Internal Revenue Manual 3.17.64.7.8.2.10, Account 6920 Disbursement Write-Off).
As a modifier the word names a place or a state rather than an act. That covers the column headed Debit in a general journal (IRS Publication 583, Rev. December 2024), the debit side of a T-account, the debit column of a trial balance or an adjusted trial balance, and a debit balance, meaning a balance that sits on that side once the account is totalled. The two sides are commonly abbreviated DR and CR, the form federal ledger documentation uses when it labels an account as carrying a DR normal balance (Internal Revenue Manual 3.17.64.6.3.1).
The posting machinery behind all of it is double-entry bookkeeping, inside the recording work of bookkeeping.
On a Card or a Bank Statement
Outside a ledger the word is used for a charge against an account, and that is the sense a cardholder meets. Federal rules define a debit card as any card, or other payment code or device, issued or approved for use through a payment card network to debit an account, and define that account as a transaction, savings or other asset account (eCFR, 12 CFR 235.2).
A bank statement is written from the bank’s books rather than from yours, so the side it shows an amount on can be the opposite of the side the same amount is posted to in your own books. A ledger debit still names a side of an account, and why one event is a debit on one set of books and a credit on the other is set out in debit vs credit.
Common Questions
In a firm’s books, the left side of an account and the entry posted there. The word carries no direction of its own, so which way an account moves is set by the kind of account, never by the word.
On a bank statement, out of that account, because the bank is charging the amount against your balance. In a ledger it is neither, since a debit names a side rather than a movement of cash, and which accounts a debit raises is set out in debit vs credit.
Accountably places trained offshore accountants inside US CPA and EA firms, and a firm can test the work on a block of its own bookkeeping through a trial task before any client file is involved.
