You might call them clients or accounts—QuickBooks calls everyone you work for or sell stuff to customers.
Add your customer information to QuickBooks first, so you’ll have a handy list to choose from when you’re creating invoices and sales receipts.

Got a whole bunch of customers in your Contacts, or someplace else? This video shows you how to import them all at once, fast.

 

Would you rather enter your customer information one customer at a time, and add more details while you’re at it? This video shows you how: