If I change the default invoice template it changes the form for previously raised invoices. How can I stop it doing this?

Hello there, LLTreasurer.

I see this is a duplicate post. My colleague answered your first post. You can refer to this link:

https://quickbooks.intuit.com/community/Other-questions/If-I-change-the-default-invoice-template-it-changes-the-form-for/m-p/300879#M19133

Don't hesitate to let us know if you have other concerns. Have a nice day!