The Brazilian Tax Reform on consumption ends the model in which software and subscriptions are taxed by ISS, PIS and COFINS and replaces it with the IBS (state and municipal) and the CBS (federal), a dual VAT with broad credit and taxation at destination. For the technology sector, the nominal rate on software and SaaS revenue tends to rise compared with today’s ISS (2% to 5%), but the business begins to credit almost all of its purchases — from cloud infrastructure to licenses, commissions and media. The net effect does not depend on the nominal figure: it depends on how much of each company’s cost chain converts into credit, on the recurring-revenue model and on adapting to split payment. This guide details, point by point, what changes — and what a technology company needs to decide before 2027.
The Reform replaces the ISS, PIS and COFINS that today fall on software and subscriptions with the IBS (state/municipal) and the CBS (federal), a dual VAT with a phased transition from 2026 to 2033. The nominal rate rises — from ISS of 2% to 5% to an IBS + CBS reference rate estimated at around 26.5% (an official simulation from the SERT/MF Technical Note; the ~28% in circulation is a market projection, with no official source) — but broad non-cumulativity now applies, with credit on practically every purchase. In practice, the real effect is usually far smaller than the nominal jump: the more creditable the cost structure, the lower the effective burden. Three structural novelties redesign the sector: the liability of digital platforms, the taxation of imported digital services (foreign cloud and SaaS now pay IBS/CBS, with credit) and split payment on recurring revenue. And technology companies under the Simples Nacional regime that sell B2B face a unique strategic decision in September 2026.
How technology and SaaS are taxed today
For more than two decades, software taxation lived with a jurisdictional dispute between States (which wanted to charge ICMS on the “product”) and Municipalities (which charged ISS on the “service”). The controversy went through three phases. In 1998, in RE 176.626 (Justice Sepúlveda Pertence), the Supreme Court (STF) ruled out ICMS on software licensing, as an intangible asset, with an exception only for “off-the-shelf software” sold in series. In February 2021, in the joint judgment of ADI 1945 and ADI 5659, the Court abandoned the distinction between standardized and bespoke software and held that all licensing or assignment of use of a program — by any means, including in the cloud — is subject to ISS, with effects modulated from 3 March 2021. ADI 5576 (Justice Roberto Barroso) reaffirmed the thesis that same year.
The point that matters most to the sector came right afterward and often goes unnoticed: in Theme 590 of general repercussion (RE 688.223, Justice Dias Toffoli), the STF held that “the levy of ISS on the licensing or assignment of the right to use computer programs is constitutional” and expressly recorded that there is a provision of service in the Software-as-a-Service (SaaS) model. It is the recognition, in a binding general-repercussion decision, that SaaS is a service — framed under sub-item 1.05 of the list annexed to LC 116/2003.
From “product” to service: how the STF settled that SaaS is ISS
- 1998
In RE 176.626 (Justice Sepúlveda Pertence), the STF rules out ICMS on software licensing, as an intangible asset — with an exception for “off-the-shelf software”.
- 2021 · Feb
In ADI 1945 and 5659 (reaffirmed by ADI 5576), the Court abandons the off-the-shelf/bespoke distinction: all software licensing — including in the cloud — is ISS. Effects modulated from 03/03/2021.
- 2021 · Theme 590
In RE 688.223, under general repercussion, the STF sets the thesis and expressly records that Software-as-a-Service (SaaS) is a provision of service — sub-item 1.05 of LC 116/2003.
- 2026—2033
The Reform rewrites the design: ISS, PIS and COFINS give way to IBS and CBS, with broad credit and taxation at destination.
Source: STF — RE 176.626; ADI 1945, 5659 and 5576; Theme 590 / RE 688.223 (Justice Dias Toffoli).
From that framing, the tax design most technology companies still operate has three layers: municipal ISS of 2% to 5% on revenue (a full cost, with no credit); PIS and COFINS, which vary by regime — cumulative at 3.65% under Lucro Presumido, with no credit; non-cumulative at 9.25% under Lucro Real, with restricted credits; and a cumulativity that penalizes services, since payroll — a software business’s largest cost — generates no credit. This is the starting point the Reform rewrites: the calculation stops being a sum of rates on revenue and becomes the difference between tax on sales and credit on purchases.
The three structural changes of the Reform
EC 132/2023 and LC 214/2025 replace five consumption taxes with a dual VAT — the federal CBS and the state/municipal IBS — accompanied by the Selective Tax. Regulation advanced in 2026 with Decree 12.955/2026 (CBS) and CGIBS Resolution No. 6/2026 (IBS). Three changes redefine the taxation of technology.
1. Broad non-cumulativity (financial credit). Practically all purchases now generate IBS and CBS credit — cloud and hosting, third-party licenses, SaaS tools, outsourced development, commissions, media. The higher nominal rate falls on a base net of credits, not on gross revenue.
2. Taxation at destination. IBS and CBS become due at the place of consumption, not at the provider’s establishment — which ends the competition between municipalities over ISS rates but requires well-structured customer-location data.
3. A higher reference rate, but with credit. While ISS runs between 2% and 5%, the combined IBS + CBS reference rate is estimated at around 26.5% — an official simulation from the SERT/MF Technical Note, which the note itself warns is not definitive; the ~28% projection circulates in the market, with no official source. Software and SaaS remain in the standard regime, at the full rate (they do not enter the 30% or 60% reductions), offset by broad non-cumulativity.
| Aspect | Current model | With IBS + CBS |
|---|---|---|
| Taxes on revenue | ISS (2%–5%) + PIS/COFINS (3.65% Presumido; 9.25% Real) | IBS + CBS (estimated reference rate ~26.5%) |
| Non-cumulativity | Restricted (limited PIS/COFINS credits; cumulative ISS) | Broad — credit on practically every purchase |
| Place of collection | Origin/provider’s establishment (ISS) | Destination (where the service is consumed) |
| Form of collection | By the company, via payment slips | Split payment at financial settlement (from 2027) |
| Exports | No ISS + PIS/COFINS exemption | Exempt from IBS/CBS, with credit maintained |
An example of how the math changes
The nominal jump is alarming, but rarely materializes in the effective burden. The example below is illustrative (not a specific case, and it disregards differentiated regimes and IRPJ/CSLL) and only shows the logic of broad credit: a SaaS company under Lucro Real with a revenue base of 100.
The nominal rate rises, but the effective rate depends on credit
Burden on consumption (base 100). The IBS + CBS nominal is high, but it falls on a base net of credits — the more creditable the cost structure, the lower the effective rate.
Illustrative chart — not a specific case; ~26.5% is an official simulation estimate (SERT/MF Technical Note), not a rate fixed in law.
Digital platforms and marketplaces: liability moves
A structural novelty for the technology ecosystem is not in the rate, but in who is liable for the tax. LC 214/2025 (arts. 21 to 23) assigns liability for IBS and CBS to the digital platforms that intermediate transactions. A platform is one that controls at least one essential element of the business — billing, payment, definition of terms and conditions, or delivery.
When it controls one of those elements, the platform becomes liable for collection in two central situations: in substitution for a supplier based abroad and jointly with a domestic supplier that fails to record the transaction in an electronic tax document. The counterpart is symmetric: the platform is not treated as liable when it controls no essential element. For marketplaces, app stores, gateways and SaaS that embed payments, this turns billing architecture into a first-order tax matter — and connects directly to split payment, which operates precisely at the moment of financial settlement.
Importing SaaS and cloud from abroad is no longer a gray area
There is an effect that reaches practically every technology company, even one that sells only in Brazil: the consumption of foreign digital services. In the new system, there is an import whenever a service or intangible from abroad is consumed in Brazil — which covers cloud, licenses, SaaS tools, technical services and copyrights. In these transactions, the Brazilian acquirer is the taxpayer of IBS and CBS on the import, with the foreign supplier (or the platform) in the chain of liability.
The good news is that, being an input of the activity, the import generates credit — consistent with broad non-cumulativity. In practice, spending on international infrastructure enters the calculation on both sides: as a debit on import and as a credit to offset. The risk lies in operations: registration of the foreign supplier, correct classification and the collection flow must be designed before 2027, or the credit will not materialize.
Timeline for technology companies
| Year | What happens |
|---|---|
| 2026 | Test phase: CBS at 0.9% and IBS at 0.1% shown on the e-invoice, offset against PIS/COFINS (no effective collection). The regulations take effect on the first day of the fourth month after publication — around August 2026. |
| 2027 | CBS at full rate; PIS and COFINS abolished; Selective Tax begins; IPI reduced to zero (except the Manaus Free Trade Zone). Split payment begins on an optional, phased basis. |
| 2029–2032 | IBS transition: the rate rises gradually as ICMS and ISS are reduced in the same proportion. |
| 2033 | ICMS and ISS abolished. Full IBS + CBS system. |
For the technology sector, the decisive year is 2027: that is when PIS and COFINS disappear, the CBS reaches its full rate and broad credit takes effect in practice. See the impact of the Reform on companies and the complete guide to the Tax Reform.
The Simples Decision 2027 for SaaS in the Simples Nacional
Many early-stage technology companies are in the Simples Nacional — and for those, the Reform brings a strategic decision with a unique window, from 1 to 30 September 2026, taking effect from 2027.
Staying in the Simples keeps the unified DAS payment, operationally simple. The problem appears in B2B sales: the corporate client that buys from a SaaS in the Simples does not receive the IBS/CBS credit (around 26.5%), which makes the offer less competitive. Opting for the regular IBS/CBS regime (keeping the Simples for the other taxes) lets the SaaS show the credit on the invoice — the B2B client uses it — at the cost of two new obligations.
Split payment on recurring revenue
Recurring revenue — the heart of SaaS — is where split payment weighs most. Under the mechanism, the payment service provider separates IBS and CBS at the moment of financial settlement and collects them automatically; the provider receives only the net amount. The regulation detailed twelve payment arrangements (from payment slips and Pix to cards, prepaid and vouchers) and two procedures — the standard (transaction by transaction) and the simplified (for B2C). Implementation begins in 2027, optional and phased, starting with business-to-business transactions.
For anyone billing monthly subscriptions by card, three effects are immediate: cash flow (the tax leaves at settlement, not at the following assessment), reconciliation (each transaction has a net different from the gross) and the relationship with gateways and acquirers, which operationalize the split — making integration with payment methods part of the adaptation project.
Software exports: the advantage few capture
Exports of services and software to clients abroad are exempt from IBS and CBS — provided the result is effectively enjoyed outside the country — with credit maintained on the linked purchases. For a company with international revenue, this means not paying tax on the export and still using the credit from cloud, licenses and services used to build the software. The point of attention is proof: the exemption requires demonstrating enjoyment abroad, which is built into contracts, before any audit.
Risks and pitfalls in the transition
- Pricing by nominal rate. Repricing simply because “the rate rose to 26.5%” ignores broad credit and may make the SaaS uncompetitive. The correct calculation starts from the effective post-credit burden.
- Multi-year contracts with no tax clause. Contracts running to 2027 and beyond must provide for the transition treatment.
- Incorrect tax classification. The classification (cClassTrib) defines the rate and credit; an error becomes tax over- or under-paid, or credit blocked for the client.
- ERP and billing not adapted. Recurring-billing systems must issue e-invoices with the IBS/CBS fields and support split payment.
Checklist to prepare for 2027
- Map all purchases that will generate credit — including cloud and tools imported from abroad.
- Simulate the net effect of IBS + CBS on margin, by revenue line and by channel (B2B × B2C).
- Review pricing based on the effective burden, not the nominal one, and add a transition clause to multi-year contracts.
- Map platform liability if the company intermediates third-party sales.
- For Simples B2B companies: run the Simples Decision 2027 analysis before the September 2026 window.
- Adapt ERP and billing for e-invoices with IBS/CBS fields and for split payment; review tax classification.
- For international revenue: organize the export documentation that supports the exemption and the credit.
How TaxUp supports technology companies
TaxUp guides technology and SaaS businesses through the transition with work that combines a tax-burden diagnostic, credit mapping (including imported services), platform-liability analysis and contract review. The focus is anticipating 2027: simulating the net effect of IBS + CBS, redesigning pricing, preparing the company for split payment and assessment at destination, and — for those in the Simples — modeling the Simples Decision 2027. The engagement is dedicated to technology companies, with a senior consultant responsible from diagnosis to execution.
Simulate the Reform’s impact on your SaaS
The TaxUp team maps your creditable purchases, projects the net effect of IBS + CBS on margin, analyzes the Simples Decision 2027 and platform liability, and prepares your operation for split payment. Book a 30-minute conversation with a senior consultant, no commitment.
Frequently asked questions
Is SaaS a service or a good for tax purposes?
It is a service. In Theme 590 (RE 688.223), the STF held under general repercussion that software licensing and assignment of use are subject to ISS and expressly recorded that the Software-as-a-Service (SaaS) model is a provision of service, framed under sub-item 1.05 of the LC 116/2003 list.
What changes for software and SaaS companies with the Tax Reform?
ISS, PIS and COFINS are replaced by IBS (state/municipal) and CBS (federal). The nominal rate rises, but broad non-cumulativity now applies, with credit on practically every purchase, and collection moves to destination and to split payment.
Will a SaaS company’s tax burden increase with IBS and CBS?
It depends on the cost structure. The nominal rate is higher than ISS, but broad credit reduces the net base. Companies with relevant creditable costs (cloud, licenses, services, commissions) tend to feel less impact than payroll-intensive businesses, since payroll generates no credit.
Will my platform have to collect IBS and CBS for its sellers?
It depends on control of the transaction. LC 214/2025 (arts. 21 to 23) makes the digital platform liable when it controls an essential element of the business (billing, payment, terms or delivery), especially when the supplier is abroad or does not issue a tax document. If the platform controls none of those elements, it is not liable.
Do I pay IBS and CBS when contracting a foreign SaaS (cloud, tools)?
Yes. A service or intangible from abroad consumed in Brazil is an import taxed by IBS and CBS, with the Brazilian acquirer as taxpayer. Being an input of the activity, the transaction generates credit to offset — provided registration, classification and collection are correct.
Do software companies qualify for any reduced-rate regime?
As a rule, no. Software and SaaS remain in the standard regime, at the full rate, offset by broad non-cumulativity. Reductions (such as the 30% for regulated intellectual professions) depend on specific framing, analyzed case by case.
How does the destination principle affect a SaaS that sells across Brazil?
IBS and CBS become due where the service is consumed, not at the provider’s headquarters. This requires well-structured customer-location data and ends the competition between municipalities over ISS rates.
What is split payment and how does it affect subscription billing?
It is the automatic collection of IBS and CBS by the payment provider at the moment of financial settlement — the tax is separated before reaching the provider’s cash. For recurring card subscriptions, it alters cash flow, reconciliation and the relationship with gateways. It begins in 2027, optional and phased.
My SaaS is in the Simples Nacional and sells to companies. Should I change regime?
That is the Simples Decision 2027, with a window from 1 to 30 September 2026. If most clients are B2B under Lucro Real, staying in the Simples may cost competitiveness, because the client cannot use the IBS/CBS credit. If the base is B2C, staying usually makes sense.
Will software exports be taxed by IBS and CBS?
No. Exports to clients abroad are exempt from IBS and CBS, with credit maintained on linked purchases, provided the result is effectively enjoyed outside the country — which requires adequate contractual documentation.
When do CBS and IBS actually start being charged?
2026 is a test phase (CBS 0.9% and IBS 0.1%, offsettable). In 2027 the CBS reaches its full rate and PIS/COFINS are abolished. The IBS rises gradually from 2029 to 2032, with ICMS and ISS abolished in 2033.
What should a technology company under Lucro Real do now?
Map all creditable purchases (including imported ones), simulate the net effect of IBS + CBS by channel, review pricing and contracts, adapt ERP and billing, and review tax classification — ideally before 2027.
Sources: EC 132/2023 and LC 214/2025 (Planalto) — including digital-platform liability (arts. 21 to 23) and the import of services and intangibles; Decree 12.955/2026 (CBS) and CGIBS Resolution No. 6/2026 (IBS); SERT/MF Technical Note (07/01/2024) on the reference rate; STF — RE 176.626; ADI 1945, 5659 and 5576; Theme 590 / RE 688.223 (Justice Dias Toffoli); LC 116/2003, sub-item 1.05. Informational content, updated June 2026; reference rates are estimates set annually; the LC 214 article numbering should be checked against the consolidated version — it does not replace an individualized analysis of each case.
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