Simples Nacional: Brazil's Simplified Tax Regime for Small Businesses
Brazil's tax system is famously one of the most complex in the world — which is exactly why the Simples Nacional exists. This unified regime bundles up to eight federal, state, and municipal taxes into a single monthly payment slip (the DAS), with progressive rates that start as low as 4%. For micro and small businesses with annual revenue up to R$ 4.8 million, it is usually the cheapest and simplest way to stay compliant. Here is how it works, who qualifies, and the traps to avoid.
What Simples Nacional is
Created by Complementary Law 123/2006, the Simples Nacional is a simplified, unified tax regime for microenterprises (ME) and small businesses (EPP). Instead of calculating and paying each tax separately, the company pays one monthly Documento de Arrecadação do Simples Nacional (DAS) that covers, in a single rate:
- IRPJ — corporate income tax
- CSLL — social contribution on net profit
- PIS/Pasep and Cofins — federal contributions on revenue
- IPI — tax on industrialized products (where applicable)
- ICMS — state tax on goods and certain services
- ISS — municipal tax on services
- INSS patronal — employer's social security contribution (except under Annex IV, where it is paid separately)
One payment, one deadline (the 20th of the month following the revenue month), one calculation. For a small business, that alone can replace a part-time bookkeeper's worth of work.
Who qualifies: the revenue ceilings
The regime is open to:
- MEI (Microempreendedor Individual) — a simplified sub-track for solo operators with annual revenue up to R$ 81,000, one employee maximum, paying a fixed monthly DAS (around R$ 72–77 depending on activity).
- ME (Microempresa) — annual gross revenue up to R$ 360,000.
- EPP (Empresa de Pequeno Porte) — annual gross revenue from R$ 360,000.01 up to R$ 4,800,000.
The R$ 4.8 million ceiling is measured on the trailing 12 months of gross revenue (RBT12), and it remains unchanged for 2026. Exceed it and the company is excluded from the regime, moving to Lucro Presumido or Lucro Real the following year.
There is also a sublimit of R$ 3.6 million (confirmed for 2026 for all states and the Federal District): companies earning between R$ 3.6 million and R$ 4.8 million stay in Simples Nacional for federal taxes but must pay ICMS and ISS separately, outside the DAS.
Some activities are barred entirely — financial institutions, for example, cannot opt in — and companies with foreign-resident partners or certain public-sector ties face restrictions. Check the current exclusion list on the Receita Federal portal before assuming eligibility.
The five annexes and how rates work
Tax rates are set by five annexes (activity types), each with six progressive revenue brackets. The rate applied is an effective rate derived from the nominal bracket rate and a deduction parcel, applied to the month's revenue:
| Annex | Activity | Starting rate | Top rate |
|---|---|---|---|
| I | Commerce (retail, wholesale) | 4.0% | 19.0% |
| II | Industry (manufacturing) | 4.5% | 30.0% |
| III | Services: installation, repair, travel agencies, training | 6.0% | 33.0% |
| IV | Services: cleaning, security, construction, legal | 4.5% | 33.0% |
| V | Services: IT, engineering, consulting, advertising, audit | 15.5% | 30.5% |
The first bracket covers revenue up to R$ 180,000 per year. So a small shop (Annex I) in the first bracket pays an effective 4% on its monthly revenue through one DAS — dramatically simpler than the standard regime.
Fator R: the 28% rule that can halve your rate
For service companies, the Fator R decides whether you land in Annex III (from 6%) or Annex V (from 15.5%). The rule: divide your payroll + pro-labore (last 12 months) by gross revenue (last 12 months). If the result is 28% or higher, you are taxed under Annex III; below that, Annex V applies.
This is why Brazilian accountants obsess over formalizing payroll: a consulting firm billing R$ 50,000/month with R$ 15,000 in payroll + pro-labore hits a 30% Fator R and pays ~6% instead of ~15.5%. The difference on R$ 600,000/year is roughly R$ 57,000 in tax. For freelancers going solo, structuring remuneration through pro-labore is often the single most valuable tax-planning move available.
The DAS and annual obligations
- Monthly DAS — due by the 20th of the following month, generated in the PGDAS-D system on the Simples Nacional portal. Late payment accrues interest (Selic) plus fines.
- DASN-SIMEI / DEFIS — the annual declaration of revenue (one per year, by March 31 for companies; MEI files the DASN-SIMEI). It reports the year's revenue and employee data.
- eSocial, EFD, and municipal/state filings continue as required — Simples Nacional simplifies the tax payment, not every ancillary obligation.
MEI: the freelancer's on-ramp
For a solo freelancer or tradesperson, the MEI track is the cheapest legal way to operate in Brazil: one employee, no partners in other companies, permitted activity list, and a flat monthly DAS that covers INSS (pension), ICMS, and ISS. Cross the R$ 81,000 annual ceiling and you migrate to ME under Simples Nacional — crossing by more than 20% triggers retroactive exclusion, so monitor revenue monthly, not in December.
Common mistakes
- Ignoring the RBT12 creep. Revenue is measured on trailing 12 months, so a strong second half can push you into a higher bracket — or out of the regime — before the calendar year ends.
- Annex V by default. Service firms that never check their Fator R silently overpay. Recompute it regularly.
- Forgetting the 3.6M sublimit. Companies between R$ 3.6M and R$ 4.8M must handle ICMS/ISS separately — a compliance step that catches people off guard.
- Late DAS. The fines and Selic interest compound fast, and persistent default can lead to exclusion from the regime.
Frequently asked questions
Can a foreigner open a Simples Nacional company?
Yes, foreigners can own Brazilian companies that opt into Simples Nacional, but the process requires a CPF, a Brazilian address, and usually a local accountant and legal representative. The regime itself does not discriminate by nationality — the barriers are administrative, not fiscal.
Is Simples Nacional always cheaper than Lucro Presumido?
Not always. For service companies with low payroll in Annex V's higher brackets, Lucro Presumido (with its presumed margins and separate PIS/Cofins) can sometimes win. Run the comparison with an accountant once revenue passes roughly R$ 1 million.
What happens if I exceed R$ 4.8 million?
The company is excluded from Simples Nacional effective the following calendar year (or retroactively in cases of fraud or large excess). It must then operate under Lucro Presumido or Lucro Real, with entirely different calculation and filing obligations.
Does Simples Nacional cover employee payroll taxes?
The DAS covers the employer's INSS contribution (except Annex IV, where it is paid separately). Employee-side withholdings (INSS, IRRF on salaries) are separate obligations handled through eSocial.
Can I switch regimes mid-year?
As a rule, the option is exercised in January and binds for the calendar year. Mid-year changes are only possible in specific situations (e.g., exclusion events). Plan the choice annually with your accountant.
Sources
- Receita Federal, Sublimite para 2026 (Portaria CGSN nº 54/2025): https://www8.receita.fazenda.gov.br/SimplesNacional/Noticias/NoticiaCompleta.aspx?id=94c10cc2-7eb5-4ef0-bfb2-5479e72caff8
- Agilize, Simples Nacional 2026: guia completo com anexos e alíquotas: https://artigos.agilize.com.br/melhor-regime-simples-nacional-2026/
- Ribeiro Cavalcante, Simples Nacional Foreigners: 4% Tax, R$4.8M Cap 2026: https://www.ribeirocavalcante.com.br/doing-business-brazil/simples-nacional/
- ContaAzul, Simples Nacional: o que é, quanto paga de imposto e tabelas 2026: https://contaazul.com/blog/o-que-e-simples-nacional/
This article is general information about Brazilian business taxation, not tax advice. Rates, ceilings, and annex rules change — confirm the current figures on the Receita Federal portal and consult a Brazilian accountant (contador) before choosing a regime.