Start a new invoice.
From the Company Activity screen, tap Menu. Then tap Invoices (+) > New Invoice.
Select the customer from your customer list.
Tap Select a Customer. If this is a new customer, tap the plus at the bottom of the screen.
Enter what you sold to them, and save the invoice.
Tap Add Item, and select an item from the list. Then tap Save.
You can preview the invoice to see what your customer will see.
Tap Preview. If you’d like, you can customize the way your invoice looks in QuickBooks Online on the web.
You can create a note or attach an existing one.
Tap Note, then Create Note or Attach Existing Note.
You can also add a photo to your note.
Tap Photo and either select an existing photo or take a new one.
Save your changes.
Email the invoice to your customer.
Tap Action, then Email from the menu.
Tap the circle to include the photo in the email.
On the Include in Email screen, tap the radio button so the checkmark displays to the left of the photo.
Send the invoice to your customer.
If you need to, add your customer’s email and then tap Send.