Wisconsin 2025-2026 Regular Session

Wisconsin Assembly Bill AB657

Introduced
11/19/25  
Refer
11/19/25  
Report Pass
2/4/26  
Refer
2/4/26  
Refer
2/6/26  
Engrossed
2/12/26  
Refer
2/13/26  
Enrolled
3/23/26  
Chaptered
4/2/26  

Caption

An Act to create 77.54 (76) and 238.42 of the statutes; Relating to: a sales and use tax exemption for nuclear fusion technology projects. (FE)

Impact

The impact of AB657 is expected to facilitate accelerated investment in nuclear fusion technology across the state by reducing financial barriers associated with the acquisition of necessary materials and equipment. Proponents argue that this legislation will position Wisconsin as a leader in nuclear fusion research and technological advancements, thereby enhancing economic growth and job creation within the emerging energy sector. Furthermore, it lays the groundwork for attracting investments in clean energy technologies, potentially benefiting local economies significantly.

Summary

Assembly Bill 657, known as a sales and use tax exemption for nuclear fusion technology projects, aims to promote the development and implementation of nuclear fusion technologies in Wisconsin. The bill creates an exemption under section 77.54 (76) of the statutes, allowing for the sales price of tangible personal property used directly for nuclear fusion projects to be exempt from sales and use tax. This exemption is designed to cover various applications including energy production, propulsion systems, and medical isotope production, supporting the state's transition towards more sustainable energy solutions.

Sentiment

The sentiment around AB657 appears largely positive among its supporters, who argue that the tax incentives will stimulate innovation and research in nuclear fusion technology, which proponents believe is pivotal for future energy needs. However, it also faces scrutiny from opponents who express concerns regarding the allocation of state resources to a technology still in its experimental stages. They argue that the long-term viability and effectiveness of nuclear fusion remain uncertain, which could affect state financial commitments in the future.

Contention

A notable point of contention surrounding AB657 revolves around the timeline of the tax exemption, which is set to expire on December 31, 2076. Critics are concerned that this long horizon could lead to fiscal challenges or a misallocation of state incentives if nuclear fusion fails to develop as anticipated. Additionally, as the bill aims to exclude certain types of regulations for projects receiving the tax exemption, there is ongoing debate about ensuring that safety and environmental standards are maintained while fostering growth in the nuclear fusion sector.

Companion Bills

WI SB636

Crossfiled A sales and use tax exemption for nuclear fusion technology projects. (FE)

Previously Filed As

WI SB636

A sales and use tax exemption for nuclear fusion technology projects. (FE)

WI AB814

A sales and use tax exemption for sales of movie theater projectors. (FE)

WI SB812

A sales and use tax exemption for sales of movie theater projectors. (FE)

WI HSB767

A bill for an act creating sales and use tax exemptions relating to commencing or restarting nuclear electric generation facilities, and including retroactive applicability provisions.(See HF 2757.)

WI AJR6

Recognizing that the Wisconsin State Legislature supports nuclear power and fusion energy as clean energy sources that are critical to safely meeting Wisconsin’s growing energy demands and declaring the legislature’s commitment to the continuation and expansion of nuclear power and nuclear technologies, the development of nuclear technologies and fusion energy, and employing the leadership and resources necessary to support the development of and investment in nuclear power, fusion energy, and related technologies in the state.

WI SJR7

Recognizing that the Wisconsin State Legislature supports nuclear power and fusion energy as clean energy sources that are critical to safely meeting Wisconsin’s growing energy demands and declaring the legislature’s commitment to the continuation and expansion of nuclear power and nuclear technologies, the development of nuclear technologies and fusion energy, and employing the leadership and resources necessary to support the development of and investment in nuclear power, fusion energy, and related technologies in the state.

WI SF2498

A bill for an act relating to nuclear electric generation facilities by creating sales and use tax exemptions and refunds, making appropriations to the state board of regents for establishing and maintaining a nuclear energy workforce, and providing penalties.(Formerly SSB 3181.)

WI AB132

Creating a board to organize, promote, and host a Wisconsin nuclear power summit. (FE)

WI SB124

Creating a board to organize, promote, and host a Wisconsin nuclear power summit. (FE)

WI HB5119

Relating to an exemption from sales and use taxes for items used to construct a nuclear project.

Similar Bills

No similar bills found.