Wisconsin payroll setup for your first hire

Wisconsin takes state income tax from paychecks. Those amounts sit with the Department of Revenue, not the Unemployment Insurance Division.

Wisconsin takes state income tax from paychecks. This is not Texas, Florida, Washington, or Tennessee. Those states do not take state income tax from paychecks. A federal Employee’s Withholding Certificate (Form W-4) is not the Wisconsin certificate.

DOR is the Wisconsin Department of Revenue, the income-tax office. Publication W-166, Withholding Tax Guide says every employer who pays wages subject to Wisconsin withholding must register for a Wisconsin withholding tax number. Register online at tap.revenue.wi.gov/btr, or file Form BTR-101, Application for Wisconsin Business Tax Registration. File and pay on My Tax Account, the Department of Revenue e-services portal. Online registration usually returns the withholding number in one to two business days. A paper Form BTR-101 can take 15 business days. Hold that withholding number. A DWD unemployment login is not that number. A payroll login is not either account.

Employees complete Form WT-4, Employee’s Wisconsin Withholding Exemption Certificate / New Hire Reporting. Publication W-166 says every newly hired employee must give Form WT-4 to the employer. If the employee does not give you Form WT-4, withhold as if the employee claims zero exemptions. Send a copy to the Department of Revenue when the employee claims more than 10 exemptions, or claims complete exemption and earns over $200 a week. A complete-exemption Form WT-4 must be renewed by April 30 each year. The federal W-4 is not that Wisconsin certificate.

Wisconsin has income-tax reciprocity with Illinois, Indiana, Kentucky, and Michigan. Publication W-166 says you do not withhold Wisconsin tax from a resident of those states if you hold written verification. Form W-220, Nonresident Employee’s Withholding Reciprocity Declaration, may be used for that. Wisconsin-Minnesota reciprocity has ended. Do not copy Minnesota’s Michigan and North Dakota reciprocity onto Wisconsin. This is not Maryland’s county or Baltimore City tax. Wisconsin does not add a county income tax on the same withholding file.

File the Withholding Tax Deposit Report (Form WT-6) on the schedule My Tax Account assigns. File the Employer’s Annual Reconciliation of Wisconsin Income Tax Withheld from Wages (Form WT-7) even in a year with no tax withheld until the Department of Revenue closes the file. The withholding number still sits with the Department of Revenue. The unemployment number still sits with the Unemployment Insurance Division.

When you owe unemployment: $1,500 in a quarter, or one person in 20 weeks

DWD is the Wisconsin Department of Workforce Development. This is not Indiana’s Department of Workforce Development. The Unemployment Insurance Division sits with DWD. That tax is often called SUTA, state unemployment tax, or SUI, state unemployment insurance. The Handbook for Employers restates the commercial-employer test. You become covered if you paid wages of $1,500 or more in a quarter in any calendar year, or you employed one or more individuals for some part of a day in 20 or more weeks in any calendar year. The weeks need not be consecutive. Part-time employees count. Wis. Stat. § 108.02(13)(e) prints the same $1,500-quarter or 20-week test. Coverage is retroactive to January 1 of the year you first meet a liability condition. Agricultural, domestic, nonprofit, and government shops use other tests. This scorecard is the regular-business path.

This is not California’s $100-in-a-quarter test. There is no 15-day California clock on the DWD page. Do not copy that clock onto Wisconsin. This is not Minnesota’s covered-wage registration clock. Minnesota tells shops not to register until covered wages have actually been paid. Wisconsin uses the $1,500-quarter or 20-week test. This is not Indiana’s $1 covered-wage test. Do not copy that $1 test onto Wisconsin. This is not Maryland’s one-worker clock from the first day of business. Maryland also tells shops to file a Combined Registration Application within 20 days of opening. Wisconsin does not use that 20-day Combined Registration Application. Massachusetts uses 13 weeks. Do not copy a 13-week clock onto Wisconsin. Wisconsin does take state paycheck withholding. Do not treat Wisconsin like a no-withholding state.

The Unemployment Insurance Division assigns a Wisconsin UI account number. Hold the number on your tax-rate notice. Do not substitute a federal Employer Identification Number, called FEIN. Do not substitute the Department of Revenue withholding number.

Register unemployment on DWD New Employer Registration. File later work on Employer Online Services.

Those are two doors on the same DWD unemployment office. New Employer Registration is the online application for a Wisconsin employer. Employer Online Services is the DWD unemployment portal after the account exists. The Handbook says to go to dwd.wisconsin.gov/uitax and select New Employer Registration. You will need the FEIN, the legal name, the ownership type, and the Wisconsin work location. After the account exists, file the quarterly contribution and wage report on Employer Online Services. A quarterly wage report is not the new-hire report.

The Division’s 2026 tax-rate page prints the taxable wage base as the first $14,000 of wages a worker earns from that employer in the calendar year. Wages above $14,000 must still be reported. They are not taxed. New shops that are not in construction pay 3.05% when payroll is under $500,000, or 3.25% when payroll is $500,000 or more. New construction shops pay 2.50% or 2.70% on that same payroll split. Those figures include the solvency tax. They sit on the DWD rate page. Use the rate on your tax-rate notice, not a number from a software page.

New hire is a 20-day Wisconsin New Hire Reporting Center report. Form WT-4 can carry it. A DWD wage report does not take it.

The new-hire report is a list of who you just hired. It is not a box on the quarterly contribution and wage report. Wisconsin New Hire Reporting requires a report of a newly hired or rehired employee within 20 days. File at wi-newhire.com. Wis. Stat. § 103.05 and DWD 142 set that clock. Publication W-166 says employers may also use Form WT-4 to comply with new-hire reporting. A federal W-4 may be used for the new-hire file if it includes the employee’s date of birth and date of hire. A quarterly DWD wage report does not satisfy that clock. This is not Massachusetts’s 14-day Department of Revenue report. This is not Georgia’s 10-day report.

Rehires, recalls, and returns after an unpaid gap of more than 60 days go back on the 20-day clock. Electronic shops that report twice a month keep those files no fewer than 12 days and no more than 16 days apart. The payroll service can send the file. The clock still sits on you.

Workplace injury insurance is due at three employees, or after $500 in a quarter. The Worker’s Compensation Division does not sell the policy.

This is not Florida’s four-employee wait. It is not Tennessee’s five-employee wait. It is not Missouri’s five-employee wait. It is not the three-employee-only test used in Georgia, North Carolina, or Virginia. Wisconsin’s $500-quarter path can catch a smaller shop before the third person starts. It is not Texas optional coverage. It is not Washington’s exclusive state fund. It is not Ohio’s Bureau of Workers’ Compensation monopoly. Wisconsin calls this worker’s compensation.

Wis. Stat. § 102.04(1)(b) sets two ordinary-shop paths. Employ three or more full-time or part-time employees, and coverage is required the day you employ the third person. Or employ fewer than three and pay wages of $500 or more in any calendar quarter for services in Wisconsin. That shop becomes subject on the 10th day of the month next succeeding that quarter. WKC-13328 and WKC-13330 restate those two clocks. WKC-7317 is the Worker’s Compensation Division employer-facts pamphlet. Farmers use a different six-worker test. This scorecard is the regular-business path.

Once you are subject, coverage generally continues while you have one or more employees. WKC-13330 says even one part-time employee under $500 a quarter does not let you drop the policy in that year. After a full calendar year with fewer than three employees and without $500 of Wisconsin wages in any quarter, you may file a withdrawal notice with the Worker’s Compensation Division. Wis. Stat. § 102.05 says that withdrawal takes effect 30 days after filing, or on a later date named in the notice. These pages do not print a same-day drop.

The Worker’s Compensation Division does not sell that policy. WKC-7317 says ordinary shops buy a licensed private policy. Rates are set through the Wisconsin Compensation Rating Bureau, called WCRB. If carriers deny the application, WCRB can assign a licensed insurer. That assigned-risk path is not a Washington-style exclusive state fund. Shops may also apply to self-insure with the Worker’s Compensation Division. A payroll login is not a policy.

How Gusto and Patriot describe Wisconsin

Confirm the live withholding number on My Tax Account. Confirm the unemployment account and rate on Employer Online Services and on the tax-rate notice. Confirm workplace injury insurance with a licensed carrier or on the Worker’s Compensation Division coverage pages.

Gusto’s Wisconsin help article says Middesk (Gusto’s business-verification company) may register state income-tax withholding and state unemployment insurance (SUI). It names the Wisconsin Department of Revenue for withholding and the Wisconsin Department of Workforce Development for unemployment tax. It restates the $1,500-quarter or 20-week unemployment test. It lists Form WT-6, Form WT-7, and Form UCT-101 among Wisconsin files. UCT-101 is the quarterly contribution and wage report. Confirm the live numbers on My Tax Account and Employer Online Services. Confirm the rate on the tax-rate notice. Read Gusto’s Wisconsin article. See Gusto on the directory.

Patriot’s registration article tells new shops to open withholding on My Tax Account and unemployment with the Department of Workforce Development. The article prints 2026 new-employer SUTA rates by payroll size: 3.05% under $500,000 and 3.25% at $500,000 or more, with construction at 2.50% and 2.70%. Those same figures sit on the DWD tax-rate page. Use the rate on your tax-rate notice, not a number from a software page. The same article tells employees to complete Form WT-4 and puts the 20-day new-hire report on the Wisconsin New Hire Reporting Center. The article also says workplace injury insurance is due if you have at least three employees, and that you can sign up through a private provider or a state-operated fund. That three-employee-only line is what the software page says. It skips the $500-quarter path in Wis. Stat. § 102.04(1)(b). The state-operated-fund line is also what the software page says. The Worker’s Compensation Division’s ordinary path is a licensed private policy, not a Washington-style exclusive state fund. Read Patriot’s registration article. See Patriot on the directory.

What still sits on the employer

• Decide that you have hit $1,500 in a quarter or one person in 20 weeks. Agricultural, domestic, nonprofit, and government shops use other tests.
• Complete My Tax Account or Form BTR-101 so the Department of Revenue can open withholding. Complete DWD New Employer Registration so the Unemployment Insurance Division can open unemployment.
• Hold the Wisconsin withholding tax number. Hold the DWD UI account number. Do not substitute a federal EIN for either number.
• Enter the premium rate from the tax-rate notice, not a marketing figure. The Division prints 3.05% or 3.25% for most new shops in 2026. Confirm the live notice.
• File the quarterly contribution and wage report on Employer Online Services after the account exists, even in a zero-wage quarter until the Division closes the file.
• Register withholding on My Tax Account or Form BTR-101 before the first withheld paycheck. Collect Form W-4 and Form WT-4. A federal W-4 is not the Wisconsin certificate. File Form WT-6 and Form WT-7 on the schedule the Department of Revenue assigns.
• File the 20-day new-hire report with the Wisconsin New Hire Reporting Center. Form WT-4 can carry that report. A quarterly DWD wage report does not satisfy that clock.
• Buy workplace injury insurance the day you employ the third person, or by the 10th day of the month after a $500 quarter. The Worker’s Compensation Division does not sell that policy. Payroll software does not issue that policy.
• Do not copy another state’s clock onto Wisconsin. Wisconsin does not use California’s $100-quarter test. Wisconsin does not use Minnesota’s covered-wage unemployment clock. Wisconsin does not use Indiana’s $1 unemployment test. Wisconsin does not use Maryland’s one-worker Combined Registration Application clock. Wisconsin does not skip state paycheck withholding the way Texas, Florida, Washington, or Tennessee do. Wisconsin does not add county income tax the way Maryland does. Wisconsin does not use Florida’s four-employee workplace-injury wait. Wisconsin does not use Missouri’s or Tennessee’s five-employee wait. Wisconsin does not use the three-employee-only wait used in Georgia, North Carolina, or Virginia. The $500-quarter path can start earlier. Wisconsin does not use Washington’s exclusive state fund. Wisconsin does not use Ohio’s Bureau of Workers’ Compensation monopoly.

Also forming a company in Wisconsin? Process Score compares registered agents there.