QuickBooks Desktop simplifies payroll tax submissions by integrating with tax filing services. Users can easily calculate, file, and pay federal and state payroll taxes directly from the software. QuickBooks Desktop offers features like automatic tax updates, e-filing capabilities, and compliance reminders, streamlining the tax submission process. With its user-friendly interface and automated functions, QuickBooks Desktop ensures accurate and timely payroll tax submissions, saving businesses time and reducing the risk of errors.