Debits and Credits are two of the most fundamental accounting terms. A debit, also known as a debit sale or debit transaction, is an accounting transaction which increases an asset or expense account, while decreasing a liability or revenue account. A credit, also referred to as a credit sale or credit transaction, is an accounting transaction which decreases an asset or expense account, while increasing a liability or revenue account. In other words, a debit will reduce cash on hand, while a credit will increase it. Both types of transactions form the backbone of bookkeeping, making it essential for businesses to understand them both in order to make informed financial decisions.