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BY SIZE · BY SECTOR·Industry · Retail · SaaS · Healthcare · Multinationals
Impact of the Reform. By size and by sector.
The Reform is not neutral. Sectors with long chains (industry, agribusiness) tend to gain; professional services and B2C SaaS tend to face an increase. Analysis by size and sector.
Published May 4, 2026·Updated May 29, 2026·13 min read
The Tax Reform is not neutral. Sectors with high cumulativity under the old system (services, industry with a long chain) tend to gain; sectors with few taxed inputs (some professional services) may see an increased burden. Mid-market companies (BRL 50M-BRL 500M) are the ones that gain the most from early diagnosis: they have material complexity and time to adapt before full collection.
01
Analysis by company size
Size
Transition complexity
Opportunity window
SMEs (up to BRL 50M)
Low-Medium
Simples Decision 2027 + operational simplification after DIFAL
Mid-market (BRL 50M-BRL 500M)
High
Recovery of legacy credits + corporate reorganization + operational adaptation
Transition complexity grows with size — from SMEs (Low-Medium) to multinationals (Critical), which face OECD Pillar 2, Transfer Pricing and WHT on top of the Reform.
Mid-market companies are especially well-positioned to take advantage of the Reform — they have enough scale to benefit materially from the changes (retroactive credits, the end of DIFAL/ST, corporate reorganization) without the overhead of adapting customized SAP systems that multinationals must absorb.
02
Sectors that benefit the most
Manufacturing industry — 5-12% gain
Full non-cumulativity eliminates the residual “tax on tax” that makes the chain more expensive today. Industries with long production chains (processed foods, chemicals, auto parts) capture 5-12 percentage points that are lost today to residual cumulativity.
E-commerce — substantial operational gain
The end of DIFAL and Tax Substitution radically simplifies logistics operations. Companies that today operate with 27 state registrations and per-state special regimes move to a single national regime. The reduction in compliance complexity alone (training, software, tax team) already pays for the adaptation investment.
Agribusiness — reduction via the differentiated regime
Agricultural products and agricultural inputs have a 60% reduction in the IBS+CBS rate (effective rate ~11% vs the standard ~28%). Combined with full non-cumulativity, the sector tends to have a lower consolidated burden than today.
Long chains (industry +5-12%, agribusiness with a 60% reduction, e-commerce, construction) gain; professional services (+15-22 points) and B2C SaaS face an increased burden.
Construction — gain via the chain
A sector with a long chain (diverse inputs, outsourced labor, technical services) today carries heavy cumulativity. Full IBS/CBS allows full credit capture, reducing the final cost.
03
Sectors that suffer the most
Professional services — a significant increase
Law, consulting, engineering, architecture, pure-service IT: today they pay an effective ISS of 2-5% with no right to a relevant credit. After the Reform they will collect ~28% combined IBS+CBS, with few creditable inputs (payroll generates no credit, and payroll is usually the sector’s largest cost). Typical increase in burden: 15-22 percentage points.
B2C SaaS — a significant increase
Today they pay ISS on software resale (with ICMS controversy) and cumulative PIS/COFINS under Presumed Profit. After the Reform they will pay full IBS/CBS with few input credits. For B2C SaaS, it is a direct hit to margin. B2B SaaS has partial mitigation (the customer takes the credit).
Urgency varies by profile: B2C SMEs and large companies have a longer runway; B2B SMEs (Simples Decision 2027) and mid-market professional services require immediate action.
Financial services — a specific regime still being defined
Banks, insurers, investment managers — they operate under a specific tax regime (IOF, ISS on financial operations) that is still being defined by the Reform regulation. A differentiated regime is expected, but it is not fully designed.
Private healthcare — neutral to an increase
A sector with a differentiated regime (60% reduction), which keeps the effective rate close to the current burden. But there is controversy over whether the reduction applies fully or only to certain operations — the Steering Committee is issuing case-by-case rulings.
04
Multinationals — critical complexity
Multinationals with a foreign parent or a cross-border operation face five simultaneous changes in 2026:
Tax Reform — IBS, CBS, IS replacing PIS/COFINS/ICMS/ISS (the IPI is cut to zero, except the Manaus Free Trade Zone, without being extinguished)
OECD Pillar 2 — 15% global minimum rate (Law 15,079/2024)
10% WHT on dividends to non-residents (Law 15,270/2025)
CIDE-royalties confirmed by the STF (10% on software/trademark remittances)
Full OECD Transfer Pricing (Law 14,596/2023, RFB Normative Instruction 2,161/2023Cross-border multinationals absorb five simultaneous fronts in 2026: the Reform, OECD Pillar 2 at 15%, 10% WHT on dividends, CIDE-royalties and full Transfer Pricing.)
The combined effect is that Brazilian tax incentives (SUDENE, SUDAM, Manaus Free Trade Zone, presumed ICMS credits) lose net attractiveness under Pillar 2 — the local saving becomes a top-up tax. The focus of planning shifts to real functional substance and economic allocation aligned with value creation.
Specific analysis of the Reform’s impact on your company by sector and size, with identification of mitigation opportunities and a priority-action timeline.
In general: sectors with long chains (industry, agribusiness, e-commerce) gain, because of full non-cumulativity and the end of DIFAL/ST. Professional services and B2C SaaS lose, because of the increased burden (ISS of 2-5% to IBS+CBS of ~28%) without sufficient offsetting credits. Mid-market is the best-positioned size to capture opportunities.
Will my professional-services company really pay 28% after the Reform?
Approximately yes, at the nominal rate — IBS+CBS combined ~28%. But the tax is collected with full non-cumulativity, so there is a credit on creditable inputs (energy, software, freight, PPE, etc.). The real effective rate depends on the cost composition. For pure services with a high share of payroll (which generates no credit), the increase is substantial.
Does an e-commerce company really gain with the Reform?
Yes, especially in operational complexity. The end of DIFAL and ST means the end of 27 state registrations, the end of per-state special regimes, and the end of advance taxation. The reduction in compliance complexity (software, training, specialized tax team) is the material gain, even if the nominal rate is similar to today.
Does a multinational with a foreign parent have more or less attractiveness after the Reform?
It depends heavily on the profile. If the multinational is > EUR 750M (subject to Pillar 2), Brazilian tax incentives lose net attractiveness. The 10% WHT on dividends makes repatriation more expensive. The confirmed CIDE-royalties raises the cost of software/trademark licensing. Together, it is a moment for a complete redesign of the cross-border tax structure.
