Yes, Schedule 3, etc. What I wrote before is what I did. I do not see how the other "solutions" address the nuances with CPEOs given the government has acknowledged that this is not a single "employer". Repasting below from the Federal Register.
"The proposed regulations also provide that if, during a calendar year, a covered employee receives remuneration from a CPEO for services performed by the covered employee for more than one customer of the CPEO, the annual wage base and withholding threshold do not apply to the aggregate remuneration received by the covered employee from the CPEO for services performed for all such customers. Rather, the annual wage base and withholding threshold apply separately to the remuneration received by the covered employee from the CPEO with respect to services performed for each customer."
There is a larger explanation in the following link:
https://www.federalregister.gov/d/2019-10856/p-22
