You can change the default tax percentage which is automatically suggested when you issue a new invoice. Create multiple tax rates if you sell your products and services in different tax areas.
Change taxes on an invoice
Check out Update taxes on invoices.
Top questions, answered by our team
How can I mark an invoice as paid?
To mark an invoice as paid, do the following:
Go to the Invoices list.
Choose Mark as Paid.
Enter the amount you've received.
Save the invoice.