Wisconsin 2025-2026 Regular Session

Wisconsin Assembly Bill AB737

Introduced
12/3/25  
Refer
12/3/25  
Report Pass
2/5/26  
Refer
2/5/26  
Refer
2/13/26  
Engrossed
2/17/26  
Refer
2/18/26  
Enrolled
2/23/26  
Chaptered
3/27/26  

Caption

An Act to create 66.1110 (2) (am), 66.1110 (8), 709.03 (form) E3m. and 709.033 (form) D2m. of the statutes; Relating to: financing certain infrastructure by special charge approved by a neighborhood improvement district.

Summary

AB737 authorizes a new financing mechanism for neighborhood improvement districts (NIDs) to fund infrastructure tied to residential development. Under the bill, a municipality may create a NID with authority to approve a special assessment if all owners of real property in the proposed district petition for it and the other statutory conditions for creating a NID are met. Once the local legislative body approves the operating plan, the municipality must impose the special assessment on parcels in the initial district, and the proceeds must be used only for infrastructure related to residential development within that district. The bill also allows these special assessments to be collected in installments and placed on the current or next tax roll, even if not delinquent, with the municipality required to set the maximum installment period. The operating plan must describe the infrastructure to be funded and either list the repayment amounts for each parcel or explain how those amounts will be determined. The bill includes special rules for small or single-owner districts, including allowing the municipality to skip mailed notice when one person owns all property in the district and delaying the usual board requirement until at least five owners are present. It also makes clear that termination of the district does not eliminate the enforceability of the special assessment. AB737 amends existing law governing neighborhood improvement districts in Wisconsin Statutes section 66.1110 and creates new disclosure form questions in real estate condition reports under sections 709.03 and 709.033. Those forms must ask whether the seller is aware of an existing neighborhood improvement special assessment, which expands disclosure obligations in property transactions. The bill also provides that sellers who already furnished a report before the effective date do not have to amend it to add the new disclosure. The bill appears to have broad legislative support, passing the Assembly 64-35 and the Senate 32-1. No committee transcript is available, but the strong vote margins suggest the measure was generally viewed favorably as a local infrastructure financing tool. The main policy effect is to give municipalities and property owners a more flexible way to finance residential infrastructure through special assessments while ensuring buyers are informed about those assessments. Any likely contention centers on the use of special assessments to finance development infrastructure and the burden placed on property owners within the district. Supporters would likely emphasize local control, infrastructure funding, and the ability to spread costs over time, while critics may focus on mandatory assessments, disclosure burdens, and the possibility that future property owners inherit repayment obligations tied to the district.

Impact

The bill changes Wisconsin’s neighborhood improvement district law in s. 66.1110 by adding a new special-assessment financing option for districts created by petition of all affected property owners. It requires municipalities to impose and administer those assessments under specified conditions, limits the use of proceeds to residential-development infrastructure, and exempts these assessments from some existing segregated-account and termination-distribution rules. It also amends real estate disclosure statutes to require notice of existing neighborhood improvement special assessments in property condition reports, affecting sellers, buyers, municipalities, and property owners in such districts.

Sentiment

The overall sentiment appears positive and largely noncontroversial in the Legislature, as reflected by the strong bipartisan vote margins in both chambers. The Assembly and Senate both passed the bill comfortably, and the near-unanimous Senate vote suggests broad agreement that the bill provides a useful financing tool for local infrastructure. The absence of recorded committee opposition or transcript debate also points to limited visible resistance in the available record.

Contention

The main points of contention are likely the policy choice to authorize special assessments for infrastructure financing and the resulting financial obligations on property owners within a neighborhood improvement district. Potential critics may be concerned about mandatory assessments, installment repayment obligations, and the effect on property transactions through the new disclosure requirements. Supporters likely favor the bill’s flexibility for municipalities, its focus on residential-development infrastructure, and the fact that it requires owner petition and local legislative approval before assessments are imposed.

Companion Bills

WI SB735

Crossfiled An Act to create 66.1110 (2) (am), 66.1110 (8), 709.03 (form) E3m. and 709.033 (form) D2m. of the statutes; Relating to: financing certain infrastructure by special charge approved by a neighborhood improvement district.

Previously Filed As

WI SB735

Financing certain infrastructure by special charge approved by a neighborhood improvement district.

WI SB131

Creating credit against severance tax for certain infrastructure improvements

WI SB448

Creating credit against severance tax for certain infrastructure improvements

WI S0734

Powers of Neighborhood Improvement Districts

WI HB1583

permitting municipalities to establish special assessment districts for infrastructure improvements.

WI SB613

Modifies provisions relating to neighborhood improvement districts

WI HB1646

creating an off-site infrastructure improvement tax credit for the value of qualified off-site infrastructure improvements constructed or funded by business organizations that directly benefit the public.

WI HB55

Creates the Cross Gates Subdivision Crime Prevention and Neighborhood Improvement District in East Baton Rouge Parish

WI HB4026

public infrastructure improvements; distribution limit

WI SB2758

MS Housing Infrastructure Support Program; create to provide grants and low-interest loans for certain public infrastructure improvements.

Similar Bills

WI SB735

Financing certain infrastructure by special charge approved by a neighborhood improvement district.

DC B26-0465

Board of Elections Certification of ANC Vacancies Amendment Act of 2025

NV AB10

Revises provisions relating to local improvement projects. (BDR 22-407)

DC B26-0090

Neighborhood Management Authority Act of 2025

HI HB1571

Relating To Condominiums.

HI SB2324

Relating To Condominiums.

DC B26-0042

Safe Neighborhoods Amendment Act of 2025

DC PR26-0496

Soul of the City Business Improvement District Emergency Declaration Resolution of 2026