You must withhold personal income tax. A new corporate tax applies to corporations and banks, other than federal S-corporations, that do business in New York City.This form is for general instructions that apply to all corporation tax forms. It includes a variety of topics about how to fill out your form. The general corporation tax (GCT) only applies to subchapter S corporations and qualified subchapter S subsidiaries under the US Internal Revenue Code. The employee must send the Form W4 and statement directly to the IRS office designated on the lockin letter. You should have NY tax withheld, not Kansas tax. Every corporation which has an officer, agent or representative in New York City is required to file reports, irrespective of whether it is subject to tax. My tax preparer told me to make sure my employer withdraws NYC tax from my income or else i'll end up having to pay a lump sum when I file next year. The 2020 Form W4 had major changes to align the withholding to changes in the tax law.