Form NYC-1127 is only applicable to non-resident employees of the city of the New York. Most New York City employees living outside of the 5 boroughs (hired on or after January 4, 1973) must file Form NYC-1127. This form calculates the City Waiver liability, which is the amount due as if the filer was a resident of NYC.
Please navigate to the below link for more information related to form NYC-1127:
https://www1.nyc.gov/site/finance/taxes/personal-income-tax-and-non-resident-employees.page
