What taxes will I incur if I live in New Jersey and Work in New York?

NY and NJ are constantly at war over reciprocal tax policy...you've probably seen articles about the "commuter tax". Basically, along an apportionment formula you will pay to both states. What you pay to NY should become a credit to what you would have paid to NJ on that same income. Because of a number of factors, like NY having a higher tax rate on that money, you will pay slightly more than if you had worked & lived in NJ only.