QuickBooks Payroll is offered on a subscription-basis (rather than a one-time purchase) because it's a service that provides a tax table each time the federal government, or the state or local governments covered by the subscription, enact any changes that affect payroll taxes.
An ongoing subscription enables you to get the latest payroll tax updates as they become available—simply get updates at least once every 45 days. To help ensure compliance with changing payroll tax withholding regulations, we strongly recommend that you maintain an active payroll subscription.
For information on signing up for a payroll service, select one of the
Sign up for QuickBooks Payroll
Sign up for QuickBooks Assisted Payroll