How to Start a Business in Wisconsin

Manufacturing is Wisconsin's largest industry, contributing over $60 billion to the state GDP. The state leads the nation in paper production, food processing, and industrial machinery.

Agriculture and Dairy remains a cornerstone of the economy. Wisconsin produces over 25% of the nation's cheese and is the second-largest dairy state behind California.

Healthcare and Biotechnology is growing rapidly, anchored by major hospital systems and the BioForward Wisconsin industry cluster in Madison and Milwaukee.

Information Technology is expanding in the Madison metro area, home to Epic Systems and a growing startup ecosystem. The region has seen double-digit tech job growth over the past five years.

Tourism and Hospitality generates over $22 billion annually, driven by the Wisconsin Dells, Door County, and professional sports venues in Milwaukee and Green Bay.

Insurance and Financial Services employs tens of thousands across the state, with major carriers headquartered in Madison and the Fox Valley.

Wisconsin has a graduated income tax with four brackets. The lowest rate is 3.5% on income up to $13,810, and the highest rate is 7.65% on income exceeding $280,950 (single filers, 2024).

LLC members pay Wisconsin income tax on their share of business profits through their personal returns. There is no separate entity-level tax or franchise tax for standard LLCs in Wisconsin.

The statewide sales tax rate is 5%. Most counties impose an additional 0.5% county sales tax, bringing the combined rate to 5.5% in most areas. Register for a Seller's Permit at the Wisconsin Department of Revenue.

Employers must withhold Wisconsin income tax from employee wages and remit it to the Department of Revenue. You must also pay state unemployment insurance (UI) tax, with new employer rates starting at approximately 3.05% on the first $14,000 of each employee's wages.

Wisconsin conforms to the federal tax code for most deductions and credits. The state offers a Manufacturing and Agriculture Credit that effectively reduces the tax rate on qualified production income to near zero.

Estimated tax payments are due quarterly (April 15, June 15, September 15, and January 15). File your annual Wisconsin income tax return by April 15 using Wisconsin Department of Revenue e-file.

Wisconsin's cost of living index is approximately 95 (national average is 100), making it 5% cheaper than the U.S. average. Median office rent in Milwaukee runs about $18-22 per square foot annually, significantly less than Chicago or Minneapolis.

The state minimum wage is $7.25 per hour, matching the federal minimum. Average wages across all industries are roughly 8-10% below the national average, reducing payroll costs for startups.

Electricity rates in Wisconsin average around $0.14 per kWh for commercial customers, roughly in line with the national average. The state's strong infrastructure keeps logistics and shipping costs competitive for manufacturing and distribution businesses.

The Wisconsin Small Business Development Center (SBDC) provides free business advising, financial planning assistance, and help with SBA loan applications. They have 13 locations across the state.

The Wisconsin Economic Development Corporation (WEDC) administers state grants and tax credits including the Qualified New Business Venture (QNBV) program, which provides angel and venture capital tax credits to investors in certified startups.

The SBA Wisconsin District Office in Milwaukee connects founders with SBA-backed lenders offering 7(a) and 504 loans with reduced down payments. SBA microloans up to $50,000 are available through Wisconsin Women's Business Initiative Corporation (WWBIC).

WWBIC also provides microloans starting at $1,000 and small business training programs targeted at underserved communities. They are one of the most active SBA microlenders in the country.

In your first 30 days, open a business bank account, set up accounting software, and register for all required state and local tax accounts. If you plan to hire employees, register with the Wisconsin Department of Workforce Development for unemployment insurance and obtain workers' compensation coverage.

By day 60, secure any required local business licenses, finalize your insurance policies, and launch your website and Google Business Profile. File for a Seller's Permit if you sell taxable goods or services.

By day 90, make your first quarterly estimated tax payment if you have earned income and establish a system for tracking expenses and invoices. Mark your annual report due date on the calendar to avoid missing it and risking dissolution.