1. Click on Jobs Pipeline2. Click on desired Invoice3. Click on Add Item4. Type "Tip"5. Type the amount for the tip6. Type any desired description for the tip7. Click on Save8. The tip will be added to the Invoice9. The tip will change the total and balance of the Invoice๐จ๏ธ The tip will appear to the client on their Invoice as well...10. Click on Preview as Client11. The tip will be listed in the Invoice.