My first post but I'll keep it brief and hope to contribute too to the threads here

1. Employer's Address on W2 is Illinois as their US headquarters.
2. I live in Texas.
3. I have the option to functionaly "report" into our office in either NYC or Jersey City New Jersey. I have team members in both offices too whom report to me. This won't change my W2 employer address etc.
Background I moved out of NYC last year luckily just before the COVID lockdowns in spring.
The move was a convenience to me as I can work remotely versus doing specific work that can only be performed in Texas.
I understand for 2020 I won't be paying NYC City Tax as I am a non-resident of NY State.
I will be paying NY State taxes for 2020 as my move was near the end of December last year.
I will be resident in Texas full time for all of 2021 too.
Q -For 2021, due to telecommuter tax or convenience rules, which do you think is the most tax-efficient state to "report into" on the assumption of a 250K average salary. I need to update my withholding ready for 2021.
Q - Does functionally reporting into an office impact where I pay state tax, or does the W2 location (which differs to the office I work for) take precedence (using the fact I will be non resident in any of Illinois, New York or New Jersey).
Thanks for any opinions, facts and inputs!
