Custom Invoice Text Based on Client

[JayBird]

My apologies if this has been answered elsewhere; however, I could not find an answer for this exact issue.

 

We have been doing more work for clients in other countries, and some of them have non-standard invoice requirements. For example, some countries in Europe have a requirement that certain information be included on an invoice, while the vast majority of our clients do not need such information on their invoices.

 

Is there a way to create custom invoice templates (not email messages) for specific clients, or a different/better way to accomplish this? I would prefer a solution where I do not have to hack the code each time there is an update, although I am open to all suggestions. Thanks!