Your solution is to make sure I entered the numbers correctly? I know some people may need that advice, but not me.
I claim 0 dependents for all levels.
When calculating state return, it says I am due a refund of $2800.
After entering city information, the refund drops to $19.
Having 0 dependents, I expect more than this.
I would confirm that you entered NYC withholding from your W-2 in the software. If there was none, the software may have 'borrowed' NYS withholding to pay NYC taxes.
Please check this item, and reconsider the rating given. We have to start with the basics on our end.