On 4 September 2026, Portaria n.º 404-A/2026/1 was published, revising and fixing the unit tax rates for the Tax on Petroleum and Energy Products (ISP). This early-September adjustment ensures the tax reflects the latest market data.
Key Takeaways
- Rate Changes Across Energy Vectors: The ordinance updates rates for motor fuels, heating fuels, and electricity, with specific values per statutory unit.
- Effective Upon Publication: The new rates are effective immediately, requiring prompt action by taxpayers subject to ISP.
- Regular Monthly Cadence: This update is part of a consistent monthly revision schedule, providing predictability for business planning.
Disclaimer: This article is compiled and summarized by the AI based on publicly available information and is for general information purposes only. It does not constitute any form of formal tax advice, legal opinion, or basis for performance. Please consult a qualified professional tax advisor or legal counsel for tax advice.
Source: Read Official Announcement