How do I specify payment terms on an invoice?
You are able to specify standard payment terms in Settings -> Invoice -> Basics:

By setting your payments terms, the Due Date field on the Invoice Details screen will automatically be populated with the invoice date + payment terms.
So, for example, if you set payment terms to 30 days and you raise an invoice on 13/11/2018, the due date will be displayed as 13/12/2018.
If you wish to over-ride the due date, you can just amend it here when saving the invoice:


By setting your payments terms, the Due Date field on the Invoice Details screen will automatically be populated with the invoice date + payment terms.
So, for example, if you set payment terms to 30 days and you raise an invoice on 13/11/2018, the due date will be displayed as 13/12/2018.
If you wish to over-ride the due date, you can just amend it here when saving the invoice:

Updated on: 01/02/2023
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