Updated for 2026

Wisconsin Security Deposit Laws & Calculator

Wisconsin gives landlords just 21 days to return your security deposit — one of the shorter deadlines in the country. While there's no cap on deposit amounts, tenants can recover 2× the amount wrongfully withheld plus court costs. Use our free calculator to see what you're owed.

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Wisconsin Security Deposit — Quick Facts

Return Deadline
21 Days
After move-out
Maximum Deposit
No State Limit
Penalty for Late Return
2× Withheld
+ court costs
Interest Required
✗ No
Applicable Law
ATCP § 134.06

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Enter your deposit amount and move-out date to instantly see your landlord's deadline, any penalties owed, and your total refund.

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Wisconsin Security Deposit Law — Explained

The 21-Day Return Deadline

Under Wis. Admin. Code ATCP § 134.06, Wisconsin landlords have 21 days after the tenant vacates to return the security deposit along with a written itemized statement of any deductions. This is one of the shorter deadlines in the country — matching California and Minnesota. The clock starts when the tenant moves out and returns the keys.

Check-In / Check-Out Requirement

Wisconsin has a unique requirement: landlords must provide tenants with a check-in sheet at the start of the tenancy documenting the condition of the unit. At move-out, the tenant has the right to be present for a check-out inspection. If the landlord fails to provide a check-in sheet, their ability to make deductions may be significantly limited. Always request and keep your check-in sheet.

What Your Landlord Can Deduct

Wisconsin landlords may deduct for unpaid rent, utility charges the tenant was responsible for, and damage beyond normal wear and tear. Normal wear and tear — minor scuffs, faded paint, carpet worn from regular use — cannot be deducted. The landlord must provide a detailed, itemized statement of all deductions within the 21-day window.

Penalties for Wrongful Withholding

If a landlord wrongfully withholds a deposit or fails to provide the required itemized statement, the tenant can recover up to 2× the amount wrongfully withheld plus court costs. Wisconsin's consumer protection framework (ATCP 134) treats security deposit violations seriously, and courts regularly enforce the double-damages provision.

What to Do If Your Landlord Is Late

  1. 1
    Document everything before you leave Take timestamped photos and video. Keep your check-in sheet, lease, and all communications.
  2. 2
    Request a check-out inspection Wisconsin gives you the right to be present during the move-out inspection. Exercise it.
  3. 3
    Provide your forwarding address in writing Email or certified mail creates a clear record.
  4. 4
    Send a formal demand letter after 21 days Use RenterCalc's demand letter generator citing ATCP § 134.06.
  5. 5
    File in small claims court Wisconsin's small claims limit is $10,000. You can sue for the deposit plus 2× the wrongfully withheld amount.

Wisconsin Security Deposit FAQ

How long does a landlord have to return a security deposit in Wisconsin?
Wisconsin landlords have 21 days after the tenant moves out to return the deposit with an itemized statement of deductions.
What is the maximum security deposit in Wisconsin?
Wisconsin has no state limit on security deposit amounts.
What is the penalty for not returning a security deposit in Wisconsin?
Tenants can recover up to 2× the amount wrongfully withheld plus court costs under ATCP § 134.06.
Does Wisconsin require interest on security deposits?
No. Wisconsin does not require landlords to pay interest on security deposits.
Does Wisconsin require a move-in checklist?
Yes. Landlords must provide a check-in sheet documenting the unit's condition. If they don't, their ability to make deductions is limited. Always keep your copy.

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