Abstract
The Brazilian tax reform, established through Constitutional Amendment No. 132/2023, introduces a profound restructuring of the consumption taxation system by replacing traditional taxes with a Dual Value-Added Tax (Dual VAT) model. This study argues that such transformation is not merely regulatory, but rather a structural shift requiring a new posture from accounting professionals. Through a literature review, the paper analyzes how the end of the fiscal war, the implementation of split payment mechanisms, and full non-cumulativity redirect accounting from operational routines toward strategic management and digital compliance. The conclusion demonstrates that business survival in the new tax environment will depend on the accountant’s ability to act as a business consultant, integrating technology, predictive analysis, and strategic decision-making.
1. Introduction
The enactment of Constitutional Amendment No. 132/2023 and its regulation through Complementary Law No. 214/2025 represent the most significant fiscal transformation in Brazil since the 1988 Constitution. The current tax system, historically characterized by excessive complexity, high compliance costs, and legal uncertainty, is being replaced by a Dual VAT model composed of the Contribution on Goods and Services (CBS) and the Tax on Goods and Services (IBS).
Within this context, a central question emerges: does the simplification proposed by the reform eliminate the need for sophisticated tax planning? This study argues the opposite. Tax planning becomes even more essential, though with a different focus: operational efficiency and cash flow management rather than the exploitation of regulatory loopholes.
2. Methodology
This article is based on a qualitative and descriptive review of technical and legal literature, analyzing the guidelines established by Constitutional Amendment No. 132/2023, Complementary Law No. 214/2025, and the perspectives of accounting and legal specialists regarding the impacts of the Brazilian tax reform.
3. Development and Discussion
3.1. The End of the Fiscal War and the New Logistics Paradigm
Historically, tax planning in Brazil concentrated on establishing branches in states offering lower ICMS tax rates. With taxation shifting from the origin principle to the destination principle — where taxes are collected at the place of consumption rather than production — the traditional “fiscal war” strategy loses its relevance.
As a consequence, business location decisions will increasingly be driven by logistical efficiency and market proximity rather than tax incentives. This transformation requires accountants to evaluate supply chains through a purely economic and strategic perspective.
3.2. Cash Flow Challenges: The Split Payment System
One of the most disruptive changes introduced by the reform is the split payment mechanism, in which financial institutions automatically separate and transfer the tax amount at the moment of financial settlement through PIX, credit cards, or bank slips.
This system significantly impacts corporate liquidity because companies will no longer temporarily retain tax amounts as working capital for periods that previously could extend up to 30 days. Consequently, accounting professionals must adopt a financial management posture, revising cash flow projections to ensure businesses maintain sufficient capital to operate without this indirect government financing mechanism.
3.3. Reassessment of Tax Regimes
The reform substantially alters the attractiveness of existing tax regimes:
Simples Nacional: Although maintained, the regime faces a potential process of “dehydration.” Since it does not allow full tax credit utilization by B2B clients, companies operating under this system may experience commercial pressure to migrate to hybrid models or to the Real Profit regime.
Real Profit and Presumed Profit: Full non-cumulativity tends to favor the Real Profit regime for companies with high input intensity, while the Presumed Profit regime may become more expensive and less competitive due to its inability to generate full tax credits for clients.
3.4. Compliance and Technology as Ethical Pillars
The new tax system will operate digitally and in real time. Tax compliance will no longer be perceived merely as a cost center but rather as a strategic asset.
Errors in tax classification codes (NCM) or failures within supplier chains may prevent tax credit utilization, resulting in direct financial losses. Therefore, tax planning must be strictly based on lawful tax avoidance practices (tax avoidance through legal means), especially considering that tax authorities will increasingly rely on Artificial Intelligence tools capable of identifying simulations and fraudulent arrangements with unprecedented speed and efficiency.
4. Conclusion
The Brazilian Tax Reform does not simplify the accountant’s role to the point of making the profession obsolete. On the contrary, it elevates the technical rigor and strategic expertise required from accounting professionals.
The accountant of the future must become an “interpreter of digital data,” capable of performing complex scenario simulations for the transition period between 2026 and 2033 and guiding investment decisions based on the new principle of tax neutrality.
In conclusion, tax planning is evolving into a more mature discipline: it abandons opportunistic shortcuts and becomes definitively integrated into corporate strategy, with accounting professionals serving as guardians of business viability, governance, and fiscal ethics within organizations.