Wisconsin Landlord-Tenant Laws: Complete Guide for Property Owners

Wisconsin's landlord-tenant landscape is a dual-track system. Residential tenancies are strictly governed by ATCP 134, while commercial tenancies are primarily controlled by Chapter 704. Understanding where these rules diverge is critical for compliant property management.

Key Wisconsin Rental Laws at a Glance

1. Security Deposits

Wisconsin does not cap security deposit amounts, but the return process is highly regulated:

• Return Deadline: Landlords must return the deposit within 21 days after the tenant vacates.
• Deductions: You cannot deduct for "normal wear and tear." Routine carpet cleaning is specifically prohibited as a deduction unless the carpet is damaged.
• Check-In Rights: Before collecting a deposit, you must notify the tenant of their right to a move-in checklist to document conditions.

2. Eviction and Termination Notices

Wisconsin has specific timelines based on the lease duration:

• Tenancy of 1 Year or Less: 5-day notice to pay/cure or 14-day unconditional notice for repeat violations.
• Tenancy over 1 Year: 30-day notice to pay or cure.
• Commercial Exception: Under Wis. Stat. § 704.17(5), a commercial lease can explicitly waive these statutory notice periods and establish its own termination procedures. This is prohibited in residential leases.

3. Mandatory Residential Disclosures (ATCP 134)

Before signing a lease or accepting a deposit, a residential landlord must disclose:

• Building Defects: Any uncorrected code violations that affect the habitability of the unit.
• Utilities: How utility costs are allocated and whether there are shared meters.
• Nonstandard Rental Provisions: Any clause that allows a landlord to deduct from a security deposit for things other than damages or unpaid rent must be on a separate, signed document.

4. Maintenance and Habitability

Landlords are bound by the implied warranty of habitability (Wis. Stat. § 704.07).

• Landlord Duties: Must maintain structural elements, plumbing, heating, and landlord-provided appliances.
• Tenant Duties: Must maintain "reasonable cleanliness" and repair damage caused by themselves or guests.

5. Late Fees and Grace Periods

• 5-Day Grace Period: Residential landlords must wait 5 days after the rent due date before assessing any late fee.
• Reasonableness: Fees must be reasonable and documented in the lease. Courts often use a 5% cap as a benchmark for reasonableness.

Best Practices

1. Use the Move-In Checklist: It is your best defense against claims that you wrongfully withheld a security deposit.
2. Review your Nonstandard Provisions: Ensure any 'cleaning fees' or 'admin fees' are listed on the mandatory separate 'Nonstandard Rental Provisions' document.
3. Verify Local Ordinances: Cities like Madison have additional tenant protections (e.g., regarding the disclosure of voter registration info) that go beyond state law.

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