Brazil’s Federal Supreme Court, the Supremo Tribunal Federal (STF), has ruled that certain disability-severity requirements introduced under Brazil’s Consumption Tax Reform cannot be used to exclude individuals with disabilities and autistic individuals from tax benefits applicable to qualifying vehicle purchases.

The ruling was issued in Direct Actions of Unconstitutionality ADI 7779 and ADI 7790, decided by the Court on August 3, 2026.

The cases challenged provisions of Complementary Law No. 214/2025, which regulates significant aspects of Brazil’s Consumption Tax Reform and establishes rules for applying a zero rate of the new Goods and Services Tax (IBS) and Contribution on Goods and Services (CBS) to certain vehicle purchases.

What restrictions did the Supreme Court invalidate?

In ADI 7779, the STF partially invalidated statutory language that conditioned eligibility on the severity of a person’s disability.

The Court removed language requiring certain mental disabilities to be classified as “severe or profound,” provisions limiting eligibility for autistic individuals to “moderate or severe” support levels, and additional severity requirements applicable to certain disability categories.

In ADI 7790, the Court similarly invalidated the provision limiting the benefit for autistic individuals based on a moderate or severe level classification.

As a result, disability severity, as defined by the provisions struck down by the Court, may no longer operate as an automatic exclusion criterion.

Does the ruling include autistic individuals with lower support needs?

The original wording of Complementary Law No. 214/2025 restricted the tax treatment to autistic individuals whose communication and behavioral impairments were classified as moderate or severe.

Because the STF removed this qualification, support level alone can no longer serve as the statutory basis for exclusion.

The decision does not, however, create automatic eligibility.

Applicants must continue to satisfy the remaining statutory requirements and provide the documentation required under Brazilian law.

What documentation is required?

Complementary Law No. 214/2025 requires the disability or autism diagnosis to be supported by an evaluation report issued through one of the authorized channels.

These include a public healthcare provider, a private healthcare provider contracted by or affiliated with Brazil’s Unified Health System (SUS), or the applicable State Department of Motor Vehicles (Detran) or one of its accredited clinics.

The Supreme Court decision therefore eliminates specific severity restrictions without removing the underlying documentation requirements.

What are the current vehicle-value limits?

Under the current statutory framework, the zero IBS and CBS rates may apply to qualifying vehicles with a consumer sales price of up to BRL 200,000.

Following amendments introduced by Complementary Law No. 227/2026, however, the tax benefit itself is limited to up to BRL 100,000 of the transaction value.

This distinction is relevant for both consumers and automotive companies implementing the benefit at the point of sale.

Did the Supreme Court eliminate the waiting period for purchasing another vehicle?

No.

In ADI 7790, the STF expressly upheld the constitutionality of the statutory provision establishing a minimum interval before the tax benefit can be used again.

Under the current version of Complementary Law No. 214/2025, as amended by Complementary Law No. 227/2026, individuals with disabilities and autistic individuals generally must wait at least three years before using the benefit again.

Different rules apply to qualifying professional taxi drivers, and exceptions apply in situations such as total loss, theft or robbery of the vehicle.

What happened to the vehicle-adaptation requirement?

ADI 7790 also challenged a provision concerning adaptations made to qualifying vehicles.

However, the relevant paragraph of Complementary Law No. 214/2025 was subsequently repealed by Complementary Law No. 227/2026.

For that reason, the STF found that this part of the case had become moot and did not issue a merits ruling on the repealed provision.

Why does the ruling matter to the automotive sector?

The decision has operational implications beyond individual beneficiaries.

Automakers, dealerships, legal departments and teams responsible for processing tax-qualified vehicle sales will need to ensure that eligibility procedures, forms and systems no longer reproduce severity-based restrictions invalidated by the Supreme Court.

At the same time, other statutory conditions remain applicable, including documentation requirements, vehicle-value thresholds and the minimum interval for using the benefit.

Does the ruling automatically affect state ICMS or vehicle-property tax benefits?

Not necessarily.

ADI 7779 and ADI 7790 specifically addressed provisions governing IBS and CBS under Complementary Law No. 214/2025.

State-level tax incentives involving ICMS or IPVA are governed by separate legal frameworks and should be reviewed independently.

This distinction will be particularly important during Brazil’s tax-reform transition, when legacy and newly created taxes will coexist under different implementation schedules.

Tax Reform and constitutional equality

The decision illustrates how Brazil’s Consumption Tax Reform raises issues that extend beyond tax mechanics.

In these cases, the Supreme Court examined whether eligibility criteria for a mobility-related tax benefit were compatible with constitutional principles protecting equality and the rights of persons with disabilities.

For companies and executives navigating the implementation of Brazil’s new tax system, the ruling reinforces the importance of monitoring not only statutory developments but also constitutional review and regulatory implementation.