How are you dealing with local tax and labor laws? My employer (mid-sized international software company) recently posted a revised work/travel/location policy

How are you dealing with local tax and labor laws? My employer (mid-sized international software company) recently posted a revised work/travel/location policy. Basically, for anything over a month, we are only allowed to work in a locale where the company has an existing presence, and we have to notify the company in advance so they can plan payroll accordingly. I believe (thought not 100% sure) this is because they effectively transfer us to the local entity for the duration of the travel.