Quick Reference: Wisconsin Security Deposit Rules at a Glance

A tenant moves out of a Madison duplex. The landlord returns the balance within 21 days but withholds $1,400 for alleged damage. The tenant disputes the deductions, pointing to conditions they say existed before the tenancy began and were never documented. The landlord also cannot show that the tenant received the written check-in notice before the deposit was accepted.

That does not mean a missing check-in notice automatically produces double the entire deposit. But it creates two problems at once. There is no documented starting condition against which to test the deduction, and there is a compliance failure under ATCP 134.06(1)(a). Where a tenant establishes a pecuniary loss caused by an ATCP 134 violation, Wis. Stat. 100.20(5) permits recovery of twice that loss plus costs and reasonable attorney fees.

That is what makes Wisconsin different from most states. The deposit rules are not primarily in the landlord-tenant chapter. They sit in an administrative rule enforced by the Department of Agriculture, Trade and Consumer Protection, with a damages multiplier attached, and the earliest obligation falls before the landlord accepts the deposit rather than at move-out.

Step 1: The Check-In Notice, Before the Deposit Is Accepted

ATCP 134.06(1)(a) is the provision Wisconsin managers most often miss, and its timing is the whole point.

Before a landlord accepts a security deposit, or converts an earnest money deposit into a security deposit under ATCP 134.05, the landlord shall notify the tenant in writing that the tenant may do either of the following by a specified deadline date which is not less than 7 days after the start of tenancy:

1. Inspect the dwelling unit and notify the landlord of any preexisting damages or defects; and

2. Request a list of physical damages or defects, if any, charged to the previous tenant's security deposit. The landlord may require that request to be made in writing.

Four operational points follow.

• The trigger is acceptance of the deposit, not move-in. If the deposit is accepted at lease signing, the required written notice must have been provided before the landlord accepts the deposit. A form handed over on key-collection day is late if the money came in a week earlier.

• The notice must state a specified deadline date. The rule does not say "give the tenant seven days." It says notify the tenant that they may act by a specified deadline date which is not less than 7 days after the start of tenancy. A notice with no date on it does not track the rule.

• Seven days is a floor. You can give longer. You cannot give less.

• And what the rule requires is the notice, not an inspection. Wisconsin does not require the landlord to conduct a joint walk-through or to complete a landlord-side checklist. It requires the landlord to tell the tenant, in writing and in advance, that the tenant may inspect and report. Whether the tenant then inspects is the tenant's choice.

That distinction matters operationally. The written notice is the compliance obligation. Any condition documentation the parties create can provide useful evidence of the unit's condition at the beginning of the tenancy, which is what every later deduction is measured against. Capturing that as a dated record on the tenancy file rather than a paper form in a drawer is what makes it usable eighteen months later, which is the operational case for structured move-in and move-out management.

Step 2: The Prior Tenant Damage List

Subsection (1)(a)2. gives the tenant a right most landlords are unaware of, and subsection (1)(b) puts a deadline on answering it.

If the tenant requests it, the landlord shall provide the tenant with a list of all physical damages or defects charged to the previous tenant's security deposit, regardless of whether those damages or defects have been repaired.

The deadline is the later of two dates: within 30 days after the landlord receives the request, or within 7 days after the landlord notifies the previous tenant of the security deposit deductions.

Two protections sit alongside it. The landlord may explain that some or all of the listed damages have been repaired, if that is true. And the landlord need not disclose the previous tenant's identity, or the amounts withheld from the previous tenant's deposit.

For a portfolio, this creates a chain. The damages you charged to last year's tenant may have to be disclosed to this year's tenant on request, which means the deduction records for a closed tenancy remain operationally live. A unit-level history of what was charged and whether it was subsequently repaired is what makes that answerable within the deadline, and it is the kind of record a Tenant 360 View approach keeps retrievable across tenancies rather than filed away at move-out.

Step 3: The 21-Day Clock, and Its Three Different Triggers

ATCP 134.06(2) requires the landlord to deliver or mail to the tenant the full amount of any security deposit paid, less any amounts withheld under subsection (3), within 21 days. The trigger depends on how the tenancy ended, and the three cases produce genuinely different dates.

(a) Tenant vacates on the termination date. The 21 days runs from the date on which the rental agreement terminates.

(b) Tenant vacates or is evicted before the termination date. The 21 days runs from the date the tenant's rental agreement terminates, or, if the landlord re-rents the premises before that date, the date on which the new tenant's tenancy begins.

(c) Tenant vacates or is evicted after the termination date. The 21 days runs from the date on which the landlord learns that the tenant has vacated or has been removed under Wis. Stat. 799.45(2).

Paragraph (b) is the one that catches managers out, and it cuts against the landlord. A tenant who abandons in month eight of a twelve-month lease gives you a clock that runs from the lease end date, which is generous. But re-rent that unit early and the clock resets to the new tenant's start date, which may be much sooner. A quick turn accelerates your own deadline.

Paragraph (c) matters for holdovers and evictions. The trigger is when the landlord learns of the vacatur, which makes the date you discovered an empty unit a fact worth recording contemporaneously.

And one definitional trap. The note to subsection (2) states that a rent payment in excess of one month's prepaid rent is considered a "security deposit" as defined under ATCP 134.02(11). The chapter does not prevent collecting more than one month's prepaid rent, but if the landlord holds any prepayment above one month when the tenant surrenders, the landlord must treat that excess as a security deposit under subsection (2). A "last month's rent" collection sitting on the ledger at surrender falls inside the 21-day rule.

Because the trigger differs by scenario and one of them depends on your own re-letting date, the deposit clock in Wisconsin cannot be a fixed offset from move-out. Tying the termination date, the surrender date, any re-let start date and the derived 21-day deadline to the tenancy record through collecting rent and payments is what keeps prepaid rent and deposit balances distinguishable when the clock starts.

Step 4: What You May Withhold

Both Wis. Stat. 704.28(1) and ATCP 134.06(3)(a) permit withholding only amounts reasonably necessary to pay for six categories:

1. Tenant damage, waste, or neglect of the premises, except as limited by the normal wear and tear rule;

2. Unpaid rent for which the tenant is legally responsible, subject to Wis. Stat. 704.29;

3. Payment the tenant owes under the rental agreement for utility service provided by the landlord but not included in the rent;

4. Payment the tenant owes for direct utility service provided by a government-owned utility, to the extent the landlord becomes liable for the tenant's nonpayment;

5. Unpaid monthly municipal permit fees assessed against the tenant under Wis. Stat. 66.0435(3), to the extent the landlord becomes liable; and

6. Any other payment for a reason provided in a nonstandard rental provision document.

Note the qualifier on category 2. Unpaid rent is withholdable subject to Wis. Stat. 704.29, which imposes a duty to mitigate damages on the landlord. Withholding the full remaining term from a deposit without accounting for mitigation is not what the provision permits.

Note also the structure of categories 3 and 4. Landlord-provided utility service is withholdable where the tenant owes it under the rental agreement. Government-owned direct utility service is withholdable only to the extent the landlord becomes liable for the nonpayment. Category 5 uses the same "to the extent the landlord becomes liable" limit.

Step 5: Nonstandard Rental Provisions, and How They Fail

Category 6 is the route to withholding for anything outside the listed grounds, and both Wis. Stat. 704.28(2) and ATCP 134.06(3)(b) set three formal requirements.

Any such provisions shall be provided to the tenant in a separate written document entitled "NONSTANDARD RENTAL PROVISIONS." The landlord shall specifically identify each nonstandard rental provision with the tenant before the tenant enters into a rental agreement. And if the tenant signs or initials by a nonstandard rental provision, it is rebuttably presumed that the landlord specifically identified it and that the tenant agreed to it.

Three things follow.

• A provision authorising a deposit withholding outside the listed grounds cannot simply be buried in the ordinary lease terms. The rule requires it to be in a separate written document titled "NONSTANDARD RENTAL PROVISIONS" and specifically identified with the tenant before the rental agreement is entered. The rule permits that document to be pre-printed.

• The identification must happen before the agreement is entered. After-the-fact disclosure does not satisfy the provision.

• And the initials are worth having. They create a rebuttable presumption in the landlord's favour on both the identification and the agreement. Without them you are proving the conversation.

This is a lease documentation problem more than an operational one. Holding the lease, the nonstandard rental provisions document and the tenant's initials on one record through contracts and renewals is what makes the presumption available when a deduction is challenged.

Step 6: Normal Wear and Tear, Painting and Carpet Cleaning

ATCP 134.06(3)(c) is short and absolute: the subsection does not authorize a landlord to withhold any amount from a security deposit for normal wear and tear, or for other damages or losses for which the tenant cannot reasonably be held responsible under applicable law.

The rule's own notes then apply it to the two most commonly disputed charges.

Routine painting and carpet cleaning are out. The note states that a landlord may not withhold from a tenant's security deposit for routine painting or carpet cleaning, where there is no unusual damage caused by tenant abuse.

And the carpet cleaning point has a further wrinkle. A second note records that a lease may include a contractual provision requiring the tenant to pay for routine carpet cleaning, citing OAG 4-13. The contractual obligation itself is permitted. What the note then rules out are two specific mechanisms: the cost may not be collected in advance, because all prepayments in excess of one month's rent must be treated as a security deposit, and the landlord may not deduct routine carpet cleaning from the security deposit, which cannot be withheld for normal wear and tear.

So a Wisconsin lease can create a contractual obligation to pay for routine carpet cleaning. It cannot convert that obligation into a deposit deduction or an advance payment. Managers importing a "carpet cleaning fee deducted at move-out" practice from another state are running directly into that note.

Because every deduction has to be attributable to something beyond ordinary use, the condition record from the start of the tenancy does double duty here. It establishes the starting point, and it can help distinguish damage from ordinary deterioration eighteen months later. Photographs at move-in and move-out are not expressly required by ATCP 134.06, but they can provide valuable evidence when the condition of the unit or the cause of damage is disputed.

Step 7: The Statement of Claims, and Its Criminal Edge

Where any portion is withheld, ATCP 134.06(4)(a) requires the landlord, within the same time period and in the same manner specified under subsection (2), to deliver or mail a written statement accounting for all amounts withheld.

The statement shall describe each item of physical damages or other claim made against the security deposit, and the amount withheld as reasonable compensation for each item or claim.

Two requirements sit inside that sentence. Each item must be described, and each item must carry its own amount. A single line reading "damages and cleaning, $1,400" satisfies neither limb.

Subsection (4)(b) adds a prohibition with real teeth: no landlord may intentionally misrepresent or falsify any claim against a security deposit, including the cost of repairs, or withhold any portion pursuant to an intentionally falsified claim.

And this obligation has an unusually serious potential consequence in Wisconsin. In State v. Lasecki, 2020 WI App 36, 392 Wis. 2d 807, 946 N.W.2d 137, a landlord was convicted by a jury on two misdemeanour counts of engaging in unfair trade practices for failing either to return the entire security deposits to two former tenants or to provide statements explaining the withholdings. On appeal, the Court of Appeals held that an ordinary person acting as a residential landlord would have sufficient notice that it can be a criminal unfair trade practice for a landlord either to withhold amounts not reasonably necessary to pay for statutorily authorised items, or to fail to provide a tenant with a security deposit withholdings statement where some or all of the deposit is withheld. It rejected the vagueness and due process challenges.

Two important qualifications. The court nonetheless reversed the judgment of conviction, because the jury instructions were erroneous and that error prejudiced the defendant, and it held the circuit court erred by ordering restitution above the victims' pecuniary losses. It remanded for further proceedings. So the criminal-exposure principle stands while the particular conviction did not, and the restitution ceiling mirrors the pecuniary loss limit that governs the civil remedy.

The court also framed the question for future cases, directing the trier of fact to determine whether the landlord committed an unfair trade practice by violating Wis. Stat. 704.28, including by failing to timely return any portion of a deposit without a lawful statutory basis, or by violating ATCP 134.06(4).

One structural point worth understanding. The annotations to Wis. Stat. 704.28 record that chapter 704 governs what a landlord may withhold and the time within which the deposit must be returned, but that the obligation to provide a withholdings statement arises only under ATCP 134.06(4). The statement of claims is a creature of the administrative rule, not the statute, which is precisely why it carries s. 100.20 consequences.

Step 8: The Forwarding Address Provision

ATCP 134.06(5) gives landlords one narrow protection. A landlord who has otherwise complied with this section shall not be considered in violation solely because the postal service has been unable to complete mail delivery to the person addressed.

Read the conditions carefully. The protection applies only where the landlord has otherwise complied, and it addresses only the delivery failure itself. The subsection expressly does not affect any other rights the tenant may have under law to the return of a security deposit.

Note also what the rule no longer says. Following the 2015 revisions, ATCP 134.06 does not prescribe a particular address to which the deposit must be sent. The obligation is to deliver or mail, and "deliver" includes delivery by an agent of the landlord such as a private courier service. The rule does not make a landlord automatically liable solely because the postal service cannot complete delivery, provided the landlord has otherwise complied with the section.

Step 9: The Civil Remedy, and Where It Comes From

ATCP 134 is an administrative rule promulgated under Wis. Stat. 100.20, the unfair trade practices statute administered by the Department of Agriculture, Trade and Consumer Protection. Wis. Stat. 100.20(5) provides that a person suffering pecuniary loss because of a violation of an order issued under that section may sue and recover twice the amount of the loss, together with costs including reasonable attorney fees.

Three consequences follow for a Wisconsin portfolio.

• A violation of ATCP 134 can expose a landlord to the s. 100.20(5) remedies, including double the tenant's pecuniary loss, costs and reasonable attorney fees, where the statutory requirements for that remedy are met. The remedy runs on pecuniary loss caused by the violation, so the relationship between the compliance failure and the loss matters.

• Attorney fees change the economics. A $600 dispute that carries fees is a very different proposition from a $600 dispute that does not, and it makes small claims viable for tenants who would otherwise absorb the loss.

• And the rule points to the case law itself. The note to ATCP 134.06(2) expressly directs readers to Pierce v. Norwick, 202 Wis. 2d 588 (1996), regarding the award of damage claims for failure to comply with the chapter's security deposit and earnest money provisions. Any manager relying on a technical compliance argument should have counsel read that decision alongside Lasecki.

DATCP also accepts consumer complaints under the chapter, so a dispute does not have to reach court to become a problem.

Three Things Wisconsin Does Not Require

• No deposit cap. Neither Wis. Stat. 704.28 nor ATCP 134 sets a maximum. The amount is a lease and market question, subject to the prepaid rent rule that treats anything above one month's prepaid rent as a deposit at surrender.

• No statewide separate or escrow account requirement. Neither provision requires deposits to be segregated, held at a particular institution, or kept in any specified account type.

• No statewide interest requirement. Neither provision imposes an obligation to pay interest on a deposit.

That is a real contrast with trust-account states such as North Carolina, where the deposit statute prescribes holding requirements alongside its return rule. Wisconsin regulates the process and leaves the custody to you, which does not remove the accounting obligation. A deposit remains a liability from receipt until a valid disposition, and the reconciliation discipline set out in our guide to security deposit accounting across intake, holding and reconciliation applies regardless of what the state requires of the account.

Common Wisconsin Security Deposit Mistakes Property Managers Make

1. Giving the check-in notice after the deposit is accepted
ATCP 134.06(1)(a) requires it before the landlord accepts the deposit. Timing is the requirement.

2. Giving a check-in form with no specified deadline date
The rule requires notice of a specified deadline date not less than 7 days after the start of tenancy.

3. Assuming a landlord walk-through satisfies the rule
What the rule requires is written notice of the tenant's right to inspect and report, not a landlord-conducted inspection.

4. Ignoring a request for the prior tenant's damage list
Subsection (1)(b) requires it within 30 days of the request, or 7 days after notifying the previous tenant of deductions, whichever is later.

5. Running the 21 days from move-out in every case
The three triggers in subsection (2) produce different dates.

6. Overlooking that early re-letting resets the clock
Where the landlord re-rents before the old agreement terminates, the 21 days runs from the new tenancy's start date.

7. Treating excess prepaid rent as rent
Any prepayment above one month held at surrender must be treated as a security deposit.

8. Putting withholding grounds in the lease body
Anything outside the listed grounds requires a separate document titled "NONSTANDARD RENTAL PROVISIONS," specifically identified before the agreement is entered.

9. Not obtaining initials on nonstandard provisions
Initials create a rebuttable presumption that the provision was identified and agreed.

10. Deducting routine painting or carpet cleaning
The notes to subsection (3)(c) exclude both absent unusual damage from tenant abuse. A permitted contractual carpet cleaning obligation still cannot be taken from the deposit or collected in advance.

11. Withholding the full remaining term as unpaid rent
That category is subject to Wis. Stat. 704.29 and its mitigation duty.

12. Sending a lump-sum statement of claims
Subsection (4)(a) requires each item to be described and each to carry its own amount, and Lasecki confirms that failing to provide the statement can be treated as a criminal unfair trade practice.

13. Inflating a repair cost
Subsection (4)(b) prohibits intentionally misrepresenting or falsifying any claim, including the cost of repairs.

14. Assuming an undeliverable mailing answers everything
Subsection (5) protects only a landlord who otherwise complied, and only as to the delivery failure.

15. Treating the exposure as the amount in dispute
Where its requirements are met, Wis. Stat. 100.20(5) provides twice the pecuniary loss caused by the violation, plus costs and reasonable attorney fees.

Conclusion

Wisconsin's deposit framework is unusual in three ways, and each one shifts risk earlier in the tenancy than managers expect.

It lives substantially in an administrative rule, ATCP 134, enforced by the Department of Agriculture, Trade and Consumer Protection alongside Wis. Stat. 704.28. That split is why the statement of withholdings is a creature of the rule rather than the statute, and why Lasecki held that failing to provide it can be treated as a criminal unfair trade practice, even though the conviction in that case was reversed on other grounds.

Its earliest obligation happens before the landlord accepts the security deposit. The check-in notice under ATCP 134.06(1)(a) has to be in writing, has to carry a specified deadline date at least seven days after the start of tenancy, and has to be given before the deposit is accepted.

And its 21-day clock has three triggers, one of which you control. Re-letting a unit early moves your own deadline forward to the new tenant's start date.

The challenge is not the rule. It is execution across a portfolio.

Because in practice, Wisconsin deposit claims are rarely lost on whether the damage was real. They are lost on a check-in notice given a week late, a nonstandard provision that lived in the lease body instead of its own titled document, a statement of claims that grouped six items into one line, or a 21-day date calculated from move-out when the unit had already been re-let. Each can create a compliance problem, and where the requirements for a claim under s. 100.20(5) are satisfied, the tenant may seek the statutory remedy.

For teams managing Wisconsin portfolios in Milwaukee, Madison, Green Bay or anywhere else in the state, the deposit file effectively opens on the day the lease is signed. The operators who succeed are those whose check-in notices, nonstandard provisions, condition records and deduction histories sit on one tenancy record rather than four systems, and whose deposit deadlines are derived from the right trigger.

This blog is for informational purposes only and does not constitute legal advice. Wisconsin residential deposit requirements sit in Wis. Admin. Code ch. ATCP 134, particularly ATCP 134.06, alongside Wis. Stat. 704.28 and related provisions including 704.29, 66.0435(3) and 799.45(2). ATCP 134.06 was substantially revised effective 1 November 2015 and has been amended since. The civil remedy arises under Wis. Stat. 100.20(5). In State v. Lasecki, 2020 WI App 36, the Court of Appeals held that failing to provide a required withholdings statement can constitute a criminal unfair trade practice, while reversing the judgment of conviction on jury instruction grounds and holding that restitution could not exceed the victims' pecuniary losses. The rule's own notes direct readers to Pierce v. Norwick, 202 Wis. 2d 588 (1996), and to OAG 4-13 on carpet cleaning. Local ordinances may impose additional requirements. Verify the current statutory and rule text with the Wisconsin Legislature and consult a licensed Wisconsin attorney for guidance specific to your portfolio.

Frequently Asked Questions

Q1. Is there a security deposit limit in Wisconsin?
No. Neither Wis. Stat. 704.28 nor ATCP 134 sets a maximum, and neither imposes a statewide requirement to hold deposits in a separate account or pay interest.

Q2. What is the Wisconsin check-in notice requirement?
Before accepting a security deposit, the landlord must notify the tenant in writing that the tenant may inspect and report preexisting damages, and request the prior tenant's damage list, by a specified deadline date not less than 7 days after the start of tenancy.

Q3. Does Wisconsin require a move-in inspection or checklist?
The rule requires the written notice, not a landlord-conducted inspection or a landlord-completed checklist. Condition documentation is not expressly required but can provide useful evidence if a deduction is disputed.

Q4. When must a Wisconsin landlord return the deposit?
Within 21 days, but the trigger varies: the agreement termination date if the tenant vacates on time, the termination date or the new tenancy's start date if the tenant leaves early and the unit is re-rented, or the date the landlord learns of a late vacatur.

Q5. What can a Wisconsin landlord deduct?
Tenant damage, waste or neglect; unpaid rent subject to the mitigation duty in Wis. Stat. 704.29; landlord-provided utility service owed under the agreement; certain government utility charges and municipal permit fees where the landlord becomes liable; and reasons set out in a compliant nonstandard rental provision.

Q6. Can a Wisconsin landlord charge for carpet cleaning?
Not from the deposit. The notes to ATCP 134.06(3)(c) state that routine carpet cleaning may not be deducted from the deposit or collected in advance, even where the lease contains a permitted contractual provision requiring the tenant to pay for it.

Q7. What must the statement of claims contain?
A written statement describing each item of physical damage or other claim and the amount withheld for each, delivered within the same 21 days and in the same manner as the deposit. Lasecki confirms failing to provide it can be treated as a criminal unfair trade practice.

Q8. What are the penalties for a Wisconsin deposit violation?
A tenant suffering pecuniary loss because of an ATCP 134 violation may have a claim under Wis. Stat. 100.20(5) for twice that loss plus costs and reasonable attorney fees. The amount recoverable depends on the violation and the resulting loss.