The tax cut passed by the GOP Congress could have the unintended effect of raising state income taxes in Wisconsin, experts said.

Those tax increases may not materialize and even if they do, statehouse Republicans say they'll work on legislation to undo them.

But the possibility shows why elected officials and ordinary taxpayers alike need to look carefully at the bill passed by Congress.

Rep. Dale Kooyenga (R-Brookfield) — a certified public accountant and a close follower of tax policy — said he's worried some state taxpayers could be snagged by federal changes dealing with tax deductions. If that would result in higher taxes, Kooyenga and Assembly Speaker Robin Vos (R-Rochester) said they will work to pass legislation to prevent that.

Read more in the Milwaukee Journal Sentinel.