There are companies like TriNet that hire your workers directly on W2 and administer all the payroll and benefits for you. You then just pay TriNet directly instead of doing payroll yourself.
Insperity is one such company--my clients typically have employees in multiple states and we just handle all the details for them. https://www.insperity.com/bpa/zac.mutrux
Insperity|3 years ago