Generally, Part Year returns figure your tax based only on the income that was earned in the state (unlike resident returns, where your tax is generally figured based on all of your income, regardless where it was earned).
Some Part Year state returns start by figuring the total tax on all of your income. Then, your actual tax is figured based on the percentage of your total income that was acutally earned in the state. Because the result is a tax amount that is based only on the amount (or percentage) of income that was earned in the state, and not actually based on your total income from all sources, you generally cannot take a credit for the taxes you paid to another state.
Important: This credit is not simply a credit because you paid taxes to another state. It generally is only intended to be used to reduce a tax liability that is calculated based on income that was taxed by another state.
 | Other Common questions about the credit for taxes paid to another state include: |
When should I claim the credit?
Nonresident Returns: Why should I not take the credit on a Nonresident state return?
When could I take the credit on a Part-Year or Nonresident state return?
What amount should I enter for the amount of tax that I paid to the other state?