Key answer: No statutory cap.
| Rule | Detail |
|---|---|
| Fee cap | No statutory cap |
| Grace period | None |
| Must be in lease? | Required — only if the written rental agreement provides for it (ATCP 134.09(8)(a)) |
| Source | Wis. Admin. Code ATCP 134.09(8) |
With monthly rent $1500, there is no statutory maximum. A landlord cannot charge a late fee at all unless the written rental agreement provides for it, and cannot charge a fee on an unpaid late fee (ATCP 134.09(8)(c)).
What is the maximum late fee a landlord can charge in Wisconsin?
No statutory cap.
When can a landlord charge a late fee in Wisconsin?
In Wisconsin, a fee can be charged as soon as rent is late, if the lease allows it.
Does the late fee have to be in the lease in Wisconsin?
Required — only if the written rental agreement provides for it (ATCP 134.09(8)(a)).
Can a landlord charge a daily late fee in Wisconsin?
Only if the written rental agreement provides for it — and no fee may be charged on an unpaid late fee.
What happens if a landlord charges an excessive late fee in Wisconsin?
A fee charged without a rental-agreement provision, or a fee charged on an unpaid late fee, violates ATCP 134.09(8) and may be unenforceable.
We have not confirmed a statewide rent-increase cap for Wisconsin. Notice requirements depend on the lease type (month-to-month vs. fixed term) — check your lease and local rules.
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Not legal advice. Verify against your lease and local rules.
Calculate your Wisconsin late fee