Employer currently has offices in CT, NY, and CA. I have done all my work from NJ save for one day when I worked from a friend's apartment in NY. The employer has been withholding NY taxes since I started working for them in 2020, mid-pandemic. They never once made my NJ location a bona fide office location, so I have been paying NY taxes (not the city taxes tho) throughout my employment with the company as it was my understanding they were considering me a NY-based employee and NY has the convenience of the employer rule. Tho the majority of the computers I remote into are in CT (if I remote into a computer in NY or CA, it is typically to start a file transfer to those locations and then I hop off).
