State tax filing

NY has found a way to make the largest tax liability possible. They take all income earned from everywhere for the whole year and they decide what the NY tax would be on that amount. It looks like they are taxing all of your income, because that is how the calculation starts. You should see the NY taxable income on line 37 includes all income. If you continue down the page, you will see a proration of NY income divided by total income on line 45 and that  percentage is applied to the tax liability to create your NY liability. The total for you is on line 50. Check lines 45 and 50. If you have a percentage and reduction, it is correct.