Brazil STF rules higher ICMS on energy, telecom in Maranhão unconstitutional

Brazil's Supreme Federal Court (STF) declared unconstitutional a Maranhão state law that imposed a higher ICMS tax rate on electricity and communication services. The ruling, led by rapporteur Minister Nunes Marques, prevents an increase in electricity bills for consumers. This is a judicial check on state fiscal policy, with implications for state revenues and utility pricing.