Hello,
As the title says, I currently have two addresses. My permanent residency/domicile is in Virginia. I just got a new job in NYC and decided to get a second, temporary apartment in NY state to make the commute to my workplace easier. I will be considered a non-resident of NY for the 2020 year as I will not meet the 184-day requirement to be considered a resident of NY for income tax purposes (https://www.tax.ny.gov/pit/file/pit_definitions.htm).
Which address do I give to my employer to use for my W-2/W-4? I currently have it listed with my Virginia address. And when I file my 2020 tax return, it is my understanding that I would file the NY non-resident tax return first, then get a credit to then apply to my Virginia tax return so that I'm not double-taxed on my income. Is this correct?
On your W-4, enter the address you want your employer to use when they mail your 2020 W-2 form to you in January.
Your understanding of how to file your two 2020 state tax returns is correct.