State tax filing
Assuming your home was a second home and not a rental property you should enter the sale in "Less Common Income".
Click on Sale of Home (Gain or Loss). Continue through the Interview. See the Screenshot below.
If you are a resident of NC then all your income will be taxable in NC regardless of where you earned it. Therefore, you should also prepare a non-resident return for Maine which you should complete before the resident return. You should receive a credit on NC for the taxes paid to Maine for the capital gain.
How to file a Nonresident State Return
