The invoice options screen can be accessed via Tools > Options > Invoice Options and allows you to specify which details are present on exported and printed invoices along with the default invoice layout that should be used.
Extra Information: You can modify your Invoice Layouts to use your own headers, logos, or special text. Find details on how to do this here.
You can set the options available here based on the type of invoicee used, this means that invoices being sent to clients may include more or less information than those being sent to insurance companies as an example. Choose the invoicee type to make changes to via the dropdown box towards the top of the screen.
The default layout you choose to present your invoices on will be used whenever an invoice is produced for the selected invoicee type. You can choose a different template at the time of printing in situations where a different template is needed.
The final section of the screen allows you to choose the settings for the date presented on the invoice – either by date of charge, or by date of invoice creation. Once complete simply click Apply then OK and your new invoice settings will be in place.