All paid for transactions are expenses and will require an expense entry. However, if your transaction can be paid at a later date, this should be entered as a bill. For all other transactions, to enter them as an expense follow the steps below:
Go to Purchases > Expenses.
Click the Create button and enter:
a. The Date.
b. The Account: where the transaction will debited.
c. Vendor name.
d. Paid through the card or bank account which was used to pay for the transaction.
e. Notes if applicable.
3. Then click Create to complete the expense.
Congratulations, you have completed your first expense record.
Read more: connecting source documents to expenses.