Always get a 200-300 refund from state. This year's return says I owe 1,800?

[SweetieJean]

Start by checking your data entry for any typos, especially commas and decimals.  But be aware that there were major 2018 Federal tax law changes. Some states start with the Federal return figures, and then make adjustments.

Which state?

[lorijill1214]

MI

[ee-ea]

You have to make a line by line comparison of this years return and the prior one.