Vehicle registration fee are entered in the federal section of the program. The amounts from the federal return flow to the state return.
To enter Car registration fees -
Click on Federal Taxes (Personal using Home & Business)
Click on Deductions and Credits
Click on I'll choose what I work on (if shown)
Scroll down to Cars and Other Things You Own
On Car Registration Fees, click on the start or update button
Or enter car tags in the Search box located in the upper right of the program screen. Click on Jump to car tags