While many third-party payroll service providers give quality service, unprofessional or fraudulent companies will take the money and run – accepting a customer’s payroll taxes and closing without warning. This is costly for the affected business because it’s legally responsible for reporting and paying the taxes due, even if it sent funds to the third-party payroll service provider for required deposits and payments.
Businesses can protect themselves by hiring a one of these trusted providers: https://www.irs.gov/newsroom/picking-the-right-third-party-payroll-service-provider-helps-protect-businesses