The normal balance of a liability account is a debit.

Liability Account

An account documenting the obligations or debts a company owes to others, which must be settled over time.

Normal Balance

The usual debit or credit balance that an account type is expected to have, which helps in ensuring the correct recording of transactions.

Debit

An accounting entry that results in either an increase in assets or a decrease in liabilities on a company's balance sheet.