I know where you can change the business address on set invoice in QuickBooks Self-Employed (QBSE), designupontyne. I'll provide the detailed process below.
You'll need to open one old or new invoice so you can update your business address.
Here's how:
- Go to the Invoices menu and select any invoices.
- Click the Edit work info hyperlink.
- Update the address and hit Save.

If you want to let your customers pay the invoice online, you can check this reference: Take and Process Payments.
I'm just one post away if you still have concerns with managing your invoices or other sales transactions in QBSE. I'm here to lend a helping hand. Take care always.