My state return is significantly less than last year (Wisconsin). Did I make an error somewhere?

[retiree]

There are many reasons that could result in such a situation; and since this is a public forum you do not want to post your personal information.  The primary reason is very simply that you likely HAVE NOT completed entering ALL of your information --the guesstimate is only as good as the information you enter accurately and correctly.

The only way to determine what is happening is to compare your 2015 and 2016 returns line by line and see where the differences are.

[GM2]

Thank You! I think I figured it out.