Click the three dots to the right of the invoice to open the drop-down menu.
Click 'Add payment' and select your 'Cash' account.
Description (optional): You can add a description for the transaction here.
Date: Enter the payment date.
Amount: Enter the amount that was paid (the program always suggests the total amount of the invoice. You can also enter partial amounts).
Confirm with 'Save'.
The invoice status automatically updates to 'Paid' when the full amount has been entered. If you only have one partial payment for the invoice, the status changes to 'Partial' and shows the outstanding amount in parentheses beneath the total.
Tip: To filter your invoice list to only view unpaid invoices, click the 'Filter' button at the top right and check the box next to 'Unpaid'.