Clients can update a worker’s legal work location. This is the address where they work. It's used for various tax and compliance requirements, like state and local tax calculation and overtime classification.
For W-2 employees, this setting is a factor in determining all tax liabilities. Clients who need to assign employer-side state unemployment tax to an alternate location should specify the appropriate Work Location ID using the "stateUnemploymentTaxLocationId" property.
Changing a worker’s legal work location requires specifying an “effective date” for the change. This is the date, in the worker's local time zone, the change becomes effective.