ThomasM125:
You should go back and read the original post, THEN the follow-ups. Not paying taxes on NY taxes is not at all the issue. Not only is that handled properly, it is VERY obvious in the menu you displayed.
The issue is identifying the INCOME that NY taxed while a non-resident of MD and including that on line 12 of the MD return. AND the secondary issue of where/how to account for that in the TT steps for MD. There is major room for improvement there, EVEN IF the only step is an addition to that menu for part-year residents that says "figure it out for yourself and enter it here." (But TT can definitely do a lot better than that.)
