1. Will I be double taxed in NC and NYC? You will need to file a NY return and pay NY taxes however NC will give you a credit on the NY taxes so you are not really double taxes. You must complete the NY return first in the program so the credit flows to NC properly.
2. What happens if my NYC employer will not withhold NC state taxes? (I am asking them today) Don't expect them to do that as it is extra work.
3. Should I, and if so, how do I start making estimated withholding payments to NC? Yes, estimates would be required if withholding will not happen ... you can decide if this is needed next year once you have filed the 2021 return. You will not have any penalties for the first year because you didn't file a NC return last year.
