State tax filing

According to the NYS tax department I would have to attach form It-203-B if I lived in NY, which i did ( Box H form It-203 marked). In this case I would have to report the whole amount which equals to federal amount. So it looks like I can import my W2 forms and then work on Schedule A and allocate actual income earned when resident. If this is the case, allocating the income manually to NY might not work. They said, if I don't file IT-203-B they will not issue any refunds. Can you clarify your response please?

 

@AmyC