Dual VAT.
The Brazilian model of consumption taxation.

What a VAT is and why the world adopts it

The VAT — Value-Added Tax — is the most widespread way of taxing consumption on the planet. More than 170 countries adopt it, from developed to emerging economies. The core idea is simple: at each link in the chain, a company pays tax only on the value it itself added, deducting what was already paid in earlier stages. The burden accrues along production without charging tax on tax.

This is what is called full non-cumulativity: everything a company paid on its purchases becomes a credit, offset against what it owes. The effect is neutrality — a principle that LC 214/2025 sets out in its art. 2: the tax should not distort consumption decisions nor the way economic activity is organized. The burden falls, in the end, on the final consumer, not on the productive structure.

The Brazilian system now being retired goes the opposite way. ICMS, ISS, PIS, Cofins and IPI overlap, follow their own rules in thousands of norms and produce so-called cumulativity — tax charged on tax, credits denied, fiscal war among States. The reform swaps that tangle for a VAT. The question was: a single VAT, as in most countries, or an arrangement tailored to the Brazilian federation?

Broad credit: non-cumulativity in practice

The heart of the VAT is the credit. Full non-cumulativity is a constitutional guarantee (CF art. 156-A, § 1, VIII): a company offsets the tax it owes against everything already charged in earlier stages. In LC 214, art. 47 turns this into broad credit — a regular-regime taxpayer credits the IBS and the CBS on practically all of its purchases, with one named exception: goods and services for personal use or consumption (defined in art. 57, such as jewelry, alcoholic beverages and works of art).

An example shows the mechanics. Suppose a 20% rate — a hypothetical figure, only to show how the credit works — over a three-stage chain:

In the end, the total collected along the chain is R$ 40 — exactly 20% of the final price of R$ 200. Each stage paid tax only on the value it added, with no cascading. This is the logic the reform generalizes. LC 214 imposes two cautions: the IBS credit and the CBS credit are computed separately, with no offsetting of one against the other (art. 47, § 1), and depend on a valid electronic tax document.

Why Brazil chose a dual VAT

The answer lies in the country’s federative structure. In Brazil, three levels of government tax consumption: the Union (PIS, Cofins, IPI), the States (ICMS) and the Municipalities (ISS). Gathering all of it into a single VAT would require one entity to collect and then redistribute — which runs into the financial autonomy of States and Municipalities, protected by the Constitution.

The solution was the dual VAT: two taxes with the same base and the same mechanics, but with separate competences. Art. 1 of LC 214/2025 institutes, on one side, the CBS, of Union competence (CF art. 195, V); on the other, the IBS, of shared competence among States, the Federal District and Municipalities (art. 156-A). Each sphere keeps its slice, but the rules are unified. The Selective Tax, federal and extrafiscal, stands apart.

Because the IBS belongs to thousands of entities at once, its administration cannot rest with any single one. That is why the law creates the IBS/CBS Steering Committee, the body that collects, audits and distributes the tax among States, the Federal District and Municipalities. It is what gives the IBS unity without harming each entity’s autonomy.

CBS and IBS: the division of competence

The difference between the two dual-VAT taxes lies not in the base or the calculation — which are identical — but in who holds them. The CBS belongs to the Union, administered by the Federal Revenue Service, and replaces PIS and Cofins. The IBS belongs to the subnational entities — States, DF and Municipalities — administered by the Steering Committee, and replaces ICMS and ISS. In practice, the company assesses both on the same transaction, with the same credit system; only the destination of the revenue differs.

From tax at origin to tax at destination

There is a quiet turn in the dual VAT that changes a logic of decades: the tax becomes due where the good or service is consumed, not where it is produced. Doctrine calls this destination taxation. The Constitution does not use that phrase, but the design is clear — the IBS of each transaction equals the sum of the rates of the destination State and Municipality (CF art. 156-A, § 1, VII; LC 214 art. 15), and the destination is set by the place of the transaction: delivery of the good, performance of the service or the purchaser’s domicile (LC 214 art. 11).

The contrast is with the ICMS, marked by the predominance of origin — much of the tax stayed in the producing State. That design fed the competition for revenue and the competing fiscal incentives among States. The dual VAT closes that door in two ways: it has single, uniform legislation across the whole country (art. 156-A, § 1, IV) and, as a rule, bars fiscal incentives and benefits on the tax (art. 156-A, § 1, X) — save for the cases set in the Constitution itself, such as the Manaus Free Trade Zone.

One distinction matters: destination is what apportions the IBS between States and Municipalities — the CBS is federal and is not apportioned among entities. And the migration is gradual: ADCT art. 131 provides that from 2029 to 2077 part of the revenue is still distributed by each entity’s historical receipts, before the destination model is fully in place.

What the dual VAT replaces

The dual VAT is not one more tax. It replaces five taxes that exist today, converging consumption taxation into two new ones — plus the Selective Tax, which partly takes over the extrafiscal role of the IPI. The map is direct:

The caveat is the IPI. It is not simply swapped for the Selective Tax: from 2027 its rate is cut to zero — except in the Manaus Free Trade Zone, where it is kept as an instrument to protect the industrial hub. The Selective Tax inherits only the extrafiscal function, falling on goods harmful to health and the environment. That is why the IPI replacement is partial.

Not everything pays the same: differentiated and specific regimes

The uniform rate is the rule, not a straitjacket. LC 214 institutes, uniformly across the country (art. 126), a series of differentiated regimes — with reduced or zero rates — and specific regimes for sectors that do not fit the general logic. Knowing this map is what separates a shallow reading from real planning:

Two caveats avoid the most common error. First, the law sets the reduction percentage (60%, 30%), not the final rate — that is only known once the reference rate is set by the Senate. Second, the specific regimes are not mere reductions: they are their own assessment systems, with base and credit rules designed for each sector — such as the real-estate regime. The simplicity of the dual VAT therefore coexists with a relevant set of structured exceptions.

Brazil vs. the world: how our rate compares

The inevitable question: will Brazil’s VAT burden be high or low against the rest of the world? The comparison below gathers the standard VAT rate of countries that adopt the single-tax model — figures verified in recent sources (2025 reference) — with Brazil alongside, as an estimate:

An essential caveat on the Brazilian figure. The figure of about 26.5% in circulation is an estimate — a Ministry of Finance simulation for the reference rate that keeps revenue at its current level. It is not written into LC 214: the effective rate will only be set later, by Federal Senate resolution. In fact, the only place the law mentions 26.5% is as a cap: if the estimated sum of the reference rates exceeds that ceiling, the Executive must propose measures to reduce it (art. 475, § 11). In other words, 26.5% is a trigger-ceiling, not the rate in force — any figure published today is a projection, not a settled fact.

With the caveat made, what the comparison suggests is that Brazil would rank among the highest standard rates in the world, near Hungary, Denmark and Sweden. That, however, is not the same as saying the burden rises: the reform is designed to be revenue-neutral — the rate is high because it replaces at once five taxes that, combined, already weighed on consumption. A straight percentage comparison, on its own, misleads if it ignores what each number embeds.

When the dual VAT takes effect

The dual VAT does not arrive all at once. The transition runs from 2026 to 2033, with the old and new taxes coexisting for some years. The calendar has four milestones:

• 2026 — test year. The IBS runs at 0.1% and the CBS at 0.9%, only to calibrate the system; collection may be waived if the company meets the ancillary obligations (ADCT art. 125; LC 214 art. 348).
• 2027 — the CBS goes live. The CBS becomes full and the Selective Tax starts. PIS and Cofins are extinguished; the IPI is cut to zero, except in the Manaus Free Trade Zone. The IBS stays in testing (0.05% state + 0.05% municipal).
• 2029 to 2032 — the IBS turn. ICMS and ISS are reduced by a fraction each year — 9/10, 8/10, 7/10 and 6/10 — with fiscal benefits shrinking in the same proportion, while the IBS gains ground.
• 2033 — full system. IBS and CBS take full effect; ICMS and ISS are extinguished, ending the transition period.

Throughout this path, the reference rate of the IBS and the CBS will be set by Federal Senate resolution — which is why no final percentage is fixed in law to this day.

The Brazilian innovations in the dual VAT

The Brazilian model is not a copy of the European VAT. The reform built in mechanisms that, together, make the national design distinctive — some unprecedented worldwide:

• Split payment. The tax is segregated at the very moment of payment and goes straight to the tax authority, instead of passing through the company’s cash and being collected later. It is an anti-evasion device still rare in the world — detailed in split payment.
• Cashback. Part of the tax is refunded directly to low-income families, to curb the regressiveness typical of consumption taxes. By law, the refund reaches 100% of the CBS and 20% of the IBS on essential consumption (art. 118).
• Broad-base uniform rate. Instead of dozens of rates per product, as under the ICMS, the dual VAT applies one uniform rate over nearly all goods and services, with few exceptions and specific regimes. This is what gives the system the simplicity and predictability that were missing.

This set — split payment, cashback and a broad base with a uniform rate — is what sets the Brazilian dual VAT apart from the single-tax models adopted in most of the world.

Criticisms and risks of the model

An honest look at the dual VAT must also record what weighs against it. The model solves old problems, but brings its own challenges — and ignoring them would be an incomplete reading:

• Complexity of the transition. The new system is only full in 2033. Until then, companies will live with the two regimes in parallel, assessing old and new taxes at the same time. That coexistence period is, paradoxically, more complex than either model on its own.
• Federative litigation. The IBS is shared by thousands of entities, with revenue apportioned under transition rules. The split of revenue between States and Municipalities, and the apportionment between origin and destination, are fertile ground for disputes — and the case law on the new tax is still to be formed.
• High standard rate. Even if revenue-neutral in intent, an estimated rate in the region of 26% would place Brazil among the highest in the world. There is concern that the final figure will pressure sectors lightly taxed today, especially services, and create a perception of a higher burden even if the aggregate holds.

None of these points invalidates the reform — but all of them demand planning. The virtue of the model, neutrality and simplicity in the full regime, coexists with a transition path that calls for technical attention from every company. It is precisely along that path that a case-by-case reading makes the difference.

The TaxUp team follows the dual-VAT design applied to the reality of each operation — CBS and IBS impact by regime, exposure to the Selective Tax and an adaptation timeline through 2033. The starting point is a diagnostic of the company’s current position before the new system.