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Security Deposit Laws in Wisconsin

By Tenant Know-How Editorial TeamLast updated 4 min read
Wisconsin Security Deposit Law at a Glance
Return Deadline
21 days
after move-out
Maximum Deposit
No cap
under state law
Itemization of Deductions
Required
Interest on Deposit
Not required
Statute: Wis. Stat. § 704.28; Wis. Admin. Code ATCP 134.06

How long does a landlord have to return a security deposit in Wisconsin?

Under Wis. Stat. § 704.28; Wis. Admin. Code ATCP 134.06, a landlord in Wisconsin has 21 days after you move out to either return your full security deposit or provide an itemized statement of deductions along with any remaining balance.

Important Wisconsin-specific details

Tenant must provide forwarding address.

What happens if the landlord misses the deadline in Wisconsin?

Missing the deadline has real consequences for landlords in Wisconsin. Under the statute, the penalty is: 2x wrongfully withheld amount plus attorney's fees.

In practice, this means if your landlord doesn't return the deposit (or a proper itemized statement) within 21 days, you likely have a strong case in small claims court.

What can the landlord legally deduct from your deposit in Wisconsin?

Wisconsin law generally allows landlords to deduct for:

  • Unpaid rent
  • Damage to the unit beyond normal wear and tear — holes in walls, broken fixtures, stains, pet damage
  • Cleaning costs, if the unit is left noticeably dirtier than at move-in
  • Breach-of-lease costs, such as early termination fees where legally permitted

Landlords cannot deduct for normal wear and tear — faded paint, worn carpet from regular use, minor scuffs, or small nail holes from hanging pictures.

Calculator: check your deposit situation

Enter your move-out date and deposit amount below to see exactly when your landlord's deadline is — and whether they've already missed it.

Security Deposit Return Calculator

Find out when your landlord must return your deposit and what they're legally allowed to deduct.

WI
Wisconsin Law
Wis. Stat. § 704.28; Wis. Admin. Code ATCP 134.06
Return Deadline
21 days after move-out
Max Deposit
No statutory cap
Itemization
Required
Interest
Not required
Wisconsin Notes
Tenant must provide forwarding address.
Informational only — not legal advice. Verify with the cited statute or a local attorney.

What to do if your landlord won't return your deposit in Wisconsin

  1. Send a demand letter by certified mail. Cite Wis. Stat. § 704.28; Wis. Admin. Code ATCP 134.06 and the amount owed. Keep a copy and the delivery receipt.
  2. Give the landlord a reasonable response window — typically 7 to 14 days after the demand letter.
  3. File in small claims court. In most states you can sue for up to $5,000–$10,000 without a lawyer. Filing fees are usually $30–$75 and often recoverable as costs.
  4. Bring evidence. Lease, move-in and move-out photos, the demand letter, proof of delivery, and any communications with the landlord.

For a complete walkthrough, see our guide: What to Do If Your Landlord Won't Return Your Security Deposit.

Wisconsin Security Deposit FAQ

How long does a landlord have to return a security deposit in Wisconsin?
In Wisconsin, landlords must return the security deposit within 21 days of the tenant moving out, per Wis. Stat. § 704.28; Wis. Admin. Code ATCP 134.06. They must either return the full deposit or provide an itemized statement of any deductions.
What is the maximum security deposit a landlord can charge in Wisconsin?
Wisconsin does not have a statutory cap on security deposits. Landlords can charge any amount, though market norms typically keep deposits to 1-2 months' rent.
What happens if my landlord doesn't return my deposit on time in Wisconsin?
In Wisconsin, the penalty for wrongfully withholding a security deposit is: 2x wrongfully withheld amount plus attorney's fees. You can sue in small claims court to recover the deposit plus the statutory penalty.
Does my landlord in Wisconsin have to pay interest on my security deposit?
No. Wisconsin does not require landlords to pay interest on security deposits.
Does my landlord have to itemize deductions from my deposit in Wisconsin?
Yes. Wisconsin law requires landlords to provide an itemized statement of any deductions made from your security deposit.