First time for a Form 309 for MD and OH. I'm a resident for AZ. Everything is already put in there for me I just don't know what to put in the box for tax by other state?

[DMarkM1]

Typically, the amounts are pre-filled by TurboTax when you complete the nonresident returns before completing the resident AZ return.  The income taxed by the other state will be the amount you allocated to each of the other states in those state interviews.  You will also need the tax liability for each state.  You can see a tax summary of each state using the steps below to find the numbers per your entries.

1. Select "Tax Tools" in the left hand menu
2. Select "Tools"
3. Select "View Tax Summary"
4. Select "Preview My 1040" in the left hand menu

5. Select "MD tax summary"

6. Select "OH tax summary"