The biggest benefit offered by online payroll services would be that all kinds of work, payroll tax payments, payroll calculations, year-end tax forms and more would be completed for you. By using these kinds of systems, payroll outsourcing services  could typically be used in a couple of minutes.

However, one downside of using online payroll services would be its expensive nature. It would be relatively more difficult to handle payroll independently. You would be entrusting your payroll provider to get everything in a proper order. In event of the provider making a mistake, you would face a fine from the government.