How do graphic designers invoice?
List each deliverable (logo, brand guide, web assets) as its own line, plus any revision rounds beyond what's included, and any licensing. State that source files are released after final payment. This tool pre-fills those lines for you.
Should designers charge for revisions?
Include a set number of revision rounds in your fee (two is common) and bill extra rounds as a separate line. This prevents endless free tweaks and is clearly itemized here.
Do I keep the rights until I'm paid?
It's standard to release final source files and transfer usage rights only after full payment. Putting that on the invoice protects your work.