Wisconsin State Tax Help: Resolve State Tax Debt with Local Experts

Wisconsin has a graduated individual income tax from 3.5% to 7.65%, with the top rate applying to income above $374,600 for married joint filers; Wisconsin also taxes capital gains as ordinary income, though a 30% exclusion applies to some long-term gains. The state sales tax is 5%, with counties levying an additional 0.5% for a common combined rate of 5.5%; Wisconsin also taxes certain digital goods and services including video streaming, online software, and digital music. Corporate income tax in Wisconsin is 7.9% on Wisconsin net income; the state's combined reporting requirement means that affiliates in other states may have their income included in the Wisconsin tax base. Payroll taxes require Wisconsin employers to withhold state income tax and file Form WT-6 monthly or quarterly depending on withholding amounts; the state unemployment insurance system charges rates from 0% to 12% based on experience. Wisconsin recently added mandatory combined reporting for corporate groups, which can significantly change the Wisconsin tax liability for businesses that previously filed only on their standalone Wisconsin entity income. Back tax debt in Wisconsin accumulates at 1.5% monthly interest; the Department of Revenue can garnish wages up to 20% of gross income, levy bank accounts, file liens on real property, and intercept Wisconsin income tax refunds. Dairy farmers, paper industry workers, manufacturing companies, and healthcare organizations with employee benefits plans are among the most common Wisconsin tax compliance challenges. Wisconsin offers installment agreements, penalty waivers with reasonable cause, and formal appeals to the Wisconsin Tax Appeals Commission.