Probably just through their HR service: https://www.upwork.com/i/payroll-client https://www.upwork.com/i/payroll-client I didn’t see a HR person listed on staf

Probably just through their HR service: https://www.upwork.com/i/payroll-client https://www.upwork.com/i/payroll-client I didn’t see a HR person listed on staff, so it’s probably just easier to use a third party service to handle all of that.