In order to mark an invoice as paid, you’ll need to click on the “Book incoming payment” button when you view the invoice, or on the dollar icon when you hover over the invoice in question in the invoice overview.
Hint: The invoice cannot be a draft and has to be marked as unpaid or due in order to be able to book an incoming payment!
After you have clicked on the button you’ll get to a screen where you can choose the account the payment is booked to. You can choose between cash register (for cash payments) and the default bank account. If you have added your account under “Payment account” you can book deposits directly as an incoming payment.
You can add further online and offline accounts under “Payment accounts” in the accounting section of your settings.
Once you have booked an incoming payment, the invoice will automatically be marked as paid.