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Home / News / Politics & Regulation / Court rejects ICMS tax on solar microgeneration in Mato Grosso.

Court rejects ICMS tax on solar microgeneration in Mato Grosso.

The court has ruled that the decision's effects are valid from the filing of the lawsuit, with no refund of amounts paid prior to the proceedings.
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  • Photo by Caique Amorim Caique Amorim
  • April 24, 2026, at 15:45 PM
1 min 7 sec read
Court rejects ICMS tax on solar microgeneration in Mato Grosso.
Photo: Freepik

The First Chamber of Public and Collective Law of the TJMT (Court of Justice of Mato Grosso) decided to dismiss the collection of ICMS (Tax on the Circulation of Goods and Services) on electricity injected and offset by microgeneration solar energy systems.

The unanimous decision was handed down in the second instance by the panel after a company in the agronomic analysis sector challenged the application of the tax on the TUSD (Tariff for Use of the Distribution System). The appeal was presided over by Judge Rodrigo Roberto Curvo.

According to the panel's assessment, in the microgeneration model, the consumer produces the energy themselves and injects the surplus into the distributor's grid, generating credits for later use. In this context, there is no legal circulation of goods or transfer of ownership, requirements that would justify the collection of the tax.

"With the ruling, the State must refrain from charging ICMS (a Brazilian state tax) on the TUSD (a Brazilian tariff for the distribution of electricity) levied on the energy injected and compensated by the consumer unit involved in the process, with effects from the filing of the lawsuit," informed the TJMT (Court of Justice of Mato Grosso).

The panel also upheld the understanding that "no refunds are due for amounts paid before the proceedings, according to the rules applicable to writs of mandamus."

all the content of Canal Solar is protected by copyright law, and partial or total reproduction of this site in any medium is expressly prohibited. If you are interested in collaborating or reusing part of our material, please contact us by email: redacao@canalsolar.com.br.

ICMS collection Mato Grosso microgeneration TUSD
Photo by Caique Amorim
Caique Amorim
Journalism student at the Pontifical Catholic University of Campinas. I have experience in producing journalistic material.
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