Wisconsin WARN Act Notice Requirements: Delivery, Exceptions, and Penalties

Wisconsin WARN Act notice requirements, set out in Section 109.07 of the Wisconsin Statutes and known formally as the Wisconsin Business Closing and Mass Layoff law, require any employer with 50 or more workers in the state to give 60 days’ written notice before a qualifying business closing or mass layoff. The notice goes to each affected employee, any union representing them, the Department of Workforce Development, and the highest official of the municipality where the site sits. Miss the deadline and the employer owes back pay to every affected worker plus a daily surcharge to the state.

Wisconsin’s thresholds sit below the federal WARN Act, so a company that is too small to trigger federal notice can still owe notice under state law.¹

Which Employers Are Covered

The statute applies to any “business enterprise” that employs 50 or more people in Wisconsin, for-profit or non-profit.² The 50-person count is total headcount in the state, not full-time equivalents.

Two categories of workers are excluded from the math that determines whether a triggering event has occurred, though they still receive notice if one does:

What Counts as a Business Closing or Mass Layoff

Two kinds of workforce reductions require notice, and the thresholds differ.

Business Closings

A business closing is the permanent or temporary shutdown of an employment site, or of one or more facilities or operating units at a site or within a single municipality, that affects 25 or more employees (not counting new and low-hour workers).³ It does not have to be the whole company. Closing a single department or production line at one site can trigger notice if enough people lose their jobs.

Mass Layoffs

A mass layoff is a reduction in force that falls short of a full closing but still cuts a significant share of the workforce at a single site or within a single municipality. Notice is required when either threshold is hit:

25% of the workforce or 25 employees, whichever is greater. If 25% works out to 18 people, the trigger stays at 25. If 25% works out to 40, the trigger is 40.
500 employees, regardless of what share of the workforce that represents.

A reduction in hours also counts as a mass layoff if hours drop by more than 50% in each month of any six-month period.¹

A closing or layoff caused by a strike or lockout does not require 60-day notice. If the shutdown happens for reasons unrelated to the labor dispute, though, notice is still owed to non-striking employees and workers at unaffected sites.²

Who Receives Notice and What It Must Say

Wisconsin Administrative Code Chapter DWD 279 sets the content rules, and they differ by recipient. An employer facing a qualifying event needs to prepare three versions of the notice.

Individual Employees

Each affected employee receives a written notice stating the name and address of the affected site, the name and phone number of a company contact, whether the action is expected to be permanent or temporary (with estimated duration if temporary), and the employee’s expected separation date. If the employee is represented by a union, the notice must also list the name and address of the collective bargaining representative.⁴

Union Representatives

When affected workers are covered by a collective bargaining agreement, the union gets a longer version. In addition to the site address and the permanent-or-temporary designation, the union notice must include the schedule of separations, a list of affected job titles with the names of employees currently in those positions, and a company contact.⁴

Department of Workforce Development and Municipality

The notice sent to the state and to the highest official of the local municipality must include the site name and address, a company contact with phone number, the expected date of the first separation, the total number of affected employees, and whether the action is permanent or temporary.⁴ This version uses a headcount rather than individual names and job titles.

How to Deliver the Notice

The notice must reach four recipients: the Department of Workforce Development’s Dislocated Worker Unit, every affected employee individually, any union representing affected workers, and the highest elected official of the municipality where the site is located.³ The state copy goes to the Dislocated Worker Unit by email at WIOATitleI@dwd.wisconsin.gov.⁴ Once the state receives the filing, its Rapid Response team contacts the employer to arrange transition services for affected workers.⁵

Separate from the event-specific notice, employers must permanently post a notice of employee rights under Section 109.07 wherever workplace notices are customarily displayed. Failing to post that notice carries a forfeiture of up to $100.²

When You Can Skip or Shorten the 60 Days

The statute recognizes several situations in which an employer is not liable for giving less than 60 days’ notice. These are defenses, not blanket exemptions. In most cases, the employer still has to give as much warning as circumstances allow and must be prepared to prove the exception applies.

Actively Seeking Capital or Business

Liability can be avoided if, at the time notice would have been due, the employer was actively pursuing financing or new business that could have prevented the shutdown and reasonably believed that giving notice would have driven that opportunity away. Wisconsin layers on a documentation requirement the federal law lacks: the employer must keep a written, notarized record of those capital-seeking efforts and submit an affidavit verifying the record to the Department of Workforce Development.³

Unforeseeable Circumstances or Disaster

An employer is also excused when the closing or layoff resulted from business circumstances that were not foreseeable when notice would have been required, or from a natural or man-made disaster beyond the employer’s control.² A sudden loss of a major customer, an unexpected regulatory shutdown, or physical destruction of a facility can qualify. The employer carries the burden of proving the event was genuinely unforeseeable.

Sales and Relocations

Notice is not required when the business is sold and the buyer agrees in writing to hire substantially all affected employees with no more than a six-month break in employment. The same logic applies when the employer relocates within a reasonable commuting distance and offers transfers to substantially all affected workers on the same terms.³ Without a written retention commitment from the buyer, or where the move is far enough to effectively end people’s jobs, the exception does not apply.

Project-Based and Temporary Work

Seasonal and fixed-duration work is exempt when the employees were hired on the understanding that the job would end when the project or season ended. A temporary shutdown is also exempt if the employer recalls all affected workers within 60 days.²

What Noncompliance Costs

Penalties come in two forms: liability to workers and a surcharge payable to the state.

Back Pay and Benefits to Employees

Every affected employee who did not get timely notice can recover back pay for each day in the “recovery period,” which runs from the day notice should have been given until the day it was actually given or the day the closing or layoff occurred, whichever is earlier. The daily rate is the higher of the employee’s regular pay at the time of the layoff or the employee’s average regular pay over the shorter of three years or the whole period of employment.⁶ For a worker who got no notice at all, that works out to up to 60 days of pay.

Employees can also recover the value of benefits they would have received during the recovery period, including medical expenses that the employer’s health plan would have covered. If the Department of Justice does not act on a referred claim within 120 days, the employee can file a private suit in circuit court and, if successful, recover attorney fees and court costs.⁷

Daily Surcharge for Failing to Notify the Municipality

If the employer fails to give timely notice to the highest official of the municipality specifically, the Department of Workforce Development can assess a surcharge of up to $500 per day. The clock starts on the day notice should have been given and stops on the earlier of the day notice was actually delivered or the day the closing or layoff occurred.⁶ For an employer that gave no notice, the surcharge alone can reach $30,000 before any back pay.

How the Wisconsin Rules Compare to the Federal WARN Act

Both laws require 60 days’ notice, but they do not line up. When both apply, the employer must meet whichever law imposes the stricter requirement on each point.¹ The key gaps:

Wisconsin covers employers at 50 workers. Federal WARN only reaches employers at 100.⁸
Wisconsin’s business-closing trigger is 25 affected employees. The federal trigger is 50.
Wisconsin’s mass-layoff trigger is 25 employees or 25% of the workforce (whichever is greater), or 500. The federal rule is 50 to 499 employees making up at least 33% of the workforce, or 500 or more.
The federal notice must include items Wisconsin does not require, such as the layoff schedule, affected job titles with headcounts in each category, and any bumping rights.
Federal law lets an employer avoid the municipality penalty by paying each aggrieved employee within three weeks of the shutdown. Wisconsin’s surcharge has no comparable cure.⁹

Business Sales: Watch the Written Commitment

Sales create a trap worth flagging separately. Under Wisconsin law, the sale exception only applies when the buyer agrees in writing, as part of the purchase agreement, to hire substantially all affected employees with no more than a six-month break in employment.³ Without that written commitment, the seller still owes full 60-day notice. Buyers conducting due diligence on a Wisconsin acquisition should confirm whether the seller gave timely notice, because inheriting a workforce that never received proper notice can carry immediate liability into the new ownership.

1
Department of Workforce Development. Overview of Wisconsin’s Business Closing and Mass Layoff Law
2
Wisconsin State Legislature. Wisconsin Code 109.07 – Mergers, Liquidations, Dispositions, Relocations or Cessation of Operations Affecting Employees; Advance Notice Required
3
Wisconsin State Legislature. Wisconsin Code 109.07 – Mergers, Liquidations, Dispositions, Relocations or Cessation of Operations Affecting Employees; Advance Notice Required
4
Wisconsin State Legislature. Chapter DWD 279
5
Department of Workforce Development. Rapid Response Process
6
Justia Law. Wisconsin Code 109.07 – Mergers, Liquidations, Dispositions, Relocations or Cessation of Operations Affecting Employees; Advance Notice Required
7
Wisconsin State Legislature. Wisconsin Code 109.07(1m) – Mergers, Liquidations, Dispositions, Relocations or Cessation of Operations Affecting Employees; Advance Notice Required
8
Office of the Law Revision Counsel. 29 USC 2102 – Notice Required Before Plant Closings and Mass Layoffs
9
Office of the Law Revision Counsel. 29 USC 2104 – Liability