Reality is a bit different. You were very clearly a NY resident the first 6 months. You remain a NY resident until you can prove you aren't. NY has a 184 day rule where you become a NY resident for t...
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Reality is a bit different. You were very clearly a NY resident the first 6 months. You remain a NY resident until you can prove you aren't. NY has a 184 day rule where you become a NY resident for the year. A new license, new lease, new job all indicate you may not be a resident. Of course, some people take temp jobs and haven't really moved. Those people don't change their license, voting, tags, etc. Another example would be your vacation in NJ, not a resident, just passing through.
Take a breath and think about the sequence of events. Was everything moved with moving trucks on June 30? When did you sign your new lease in MD? What can you prove? NY comes after people to get their money and they come hard. Be sure you are ready.
Once you determine what you can prove, your dates of residency for NY and MD are established.
If you are a NY resident for the year, you can claim a credit for the tax paid to MD on the same income. The credit will be the lower of the state tax liabilities on the same gross income. You may owe your resident state, if they have a higher tax rate along with differences in how the taxable income is calculated.