"when i start typing in "ADD WORK" it does not allow me to add enough detail"

Hello, danielfaulkner-b.

I appreciate your feedback about adding more details to the invoice in QuickBooks Self Employed.

You may utilize the Description field to add some details as a workaround.
 

I'm adding some articles as your reference for future tasks in QBSE:

• Create invoices in QuickBooks Self-Employed.
• Record or attach expense receipts in QuickBooks Self-Employed.

There you have it @danielfaulkner-b! If I can be of any additional assistance, let me know by commenting below. I'll be sure to get back to you soon.