According to the license at the link below, one can install QB Desktop purchased with a single-user license on two computers for use by one person 3. Terms, conditions, pricing, special features, and service and support options subject to change without notice.
 
 

Intuit QuickBooks Desktop Premier Plus – 3 User/1 Year.QuickBooks Desktop Pro Accounting Software – Save Up To 40% Off

 
Starting at sign-up, your account on file will be automatically billed for the first year at the stated discount for the service you selected. Here are a few articles that will help you in handling your subscriptions and licenses: Features available and tasks you can perform in single or multi-user mode Add a user license to your QuickBooks software Let me know if you have other questions. Payroll