Her plan calls for a 17.7 percent tax rate, which is higher than even California's 13 percent rate and far higher than nearby states like Indiana, which has a 2.95 percent tax rate. The Washington Post says people will flee Wisconsin if Hong wins, and they're right. The Washington Post points out that taxpayers will leave the state if Hong's tax hikes become a reality. She would levy another 1 percent on “millionaires and large corporations,” bringing their top state tax rate to almost 9 percent. The top 5 percent of earners pay about 40 percent of the state’s net income taxes.