How do I increase the font of only my business address on sales invoices please? When I go to edit of that section, there is not an option on the left.

Hello Isobel, 

Welcome to the Commuyntiy page, 

Unfortunatly there is no way to increase the front for just the business address, you can only increase or decrease the size of font for the whole invocie by going to main cog wheel> cusotmer form styles>click on the template you use>design>select a different font> chnage the font style and size there> done. You can leave it as feedback for to be able to change font size of different parts of the invoice by going to the main cog wheel> feedback this gets sent straight to our developers.