VMAHUB editorial hub

In Practice: technical clarity for business decisions

Objective content on accounting, business law, holdings, tax planning and management — for those who need to understand quickly, compare scenarios and know when to go deeper with a specialist.

Knowledge hub

Latest articles.

49 published articles. Content curated by the VMAHUB team and reviewed to a technical standard before publication, with weekly updates focused on practical usefulness.

Open a company

CNPJ, CNAE, tax regime and incorporation timelines.

13 articles
Company Formation

Operating permit: when it's required and how to request it

An operating permit is the license that authorizes companies to operate at an address. Understand when it's required and how to request it.

May 22, 2026 · Vivian Sampaio

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Company Formation

CNPJ: what it is and why your company needs it

The CNPJ is the National Registry of Legal Entities (company tax ID). Understand what it is, what it's for and why your company needs it to operate legally in Brazil.

May 22, 2026 · Vivian Sampaio

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Company Formation

How to open a company through Simplifica: complete step by step

Learn step by step how to open a company through Simplifica: register, validate the activity, and issue the CNPJ and operating permit all in one place.

May 22, 2026 · Vivian Sampaio

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Company Formation

CNAE: how to choose the right code for your company

The CNAE affects taxation and licensing. Learn how to choose the right code and avoid paying too much tax due to a mistaken CNAE.

May 22, 2026 · Vivian Sampaio

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Company Formation

How much it costs to open a company in 2026: from MEI to Business

How much does it cost to open a company in 2026? From MEI to Business: registration, accountant, permit and maintenance costs expected this year.

May 22, 2026 · Vivian Sampaio

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Switch accountant & accounting

Firm transition, accounting routine and operational review.

17 articles
Accounting

Accountant for companies in Belo Horizonte and the San Pedro Valley ecosystem

Advisory accounting for companies in Belo Horizonte and the Minas Gerais technology ecosystem. Remote service. Talk to VMAHUB.

Jun 12, 2026 · Vivian Sampaio

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Accounting

Accountant for companies in Campinas and the technology metropolitan region

Advisory accounting for companies in Campinas: technology, telecom and importing via Viracopos. Remote service. Talk to VMAHUB.

Jun 12, 2026 · Vivian Sampaio

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Accounting

Accountant for companies in Curitiba: industry, technology and services

Advisory accounting for companies in Curitiba: industry, technology and services. Remote, nationwide service. Talk to VMAHUB.

Jun 12, 2026 · Vivian Sampaio

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Accounting

Accountant for companies in Porto Alegre: innovation and agribusiness

Advisory accounting for companies in Porto Alegre: innovation, agribusiness and services. Remote service. Talk to VMAHUB.

Jun 12, 2026 · Vivian Sampaio

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Accounting

Accountant for companies in Rio de Janeiro: from oil and gas to the creative economy

Advisory accounting for companies in Rio de Janeiro: oil and gas, creative economy and services. Remote service. Talk to VMAHUB.

Jun 12, 2026 · Vivian Sampaio

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Incorporated & independent professionals

Doctors, consultants and other professionals assessing structure and tax burden.

11 articles
Incorporated Professionals

How to open a company as an independent professional in 2026

Learn step by step how to open a company as an independent professional in 2026. Documents, regimes, costs and tips to get the CNPJ right.

May 22, 2026 · Vivian Sampaio

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Incorporated Professionals

Lawyer as a company (PJ): how taxation works in 2026

Lawyer as a company (PJ): understand how taxation works in 2026. Simples Nacional, Lucro Presumido and strategies to pay less tax legally.

May 22, 2026 · Vivian Sampaio

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Incorporated Professionals

How an independent professional legally pays less tax

How does an independent professional legally pay less tax? Discover tax-planning strategies that save thousands per year.

May 22, 2026 · Vivian Sampaio

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Incorporated Professionals

Expense deductions in income tax for independent professionals

Which expenses can an independent professional deduct in income tax? A complete guide with allowed deductions and how to document them.

May 22, 2026 · Vivian Sampaio

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Incorporated Professionals

Can a dentist open a clinic as a company (PJ)? Understand the rules

Can a dentist open a clinic as a company (PJ)? Understand the rules, tax regimes, costs and the step by step to formalize your activity in 2026.

May 22, 2026 · Vivian Sampaio

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Editorial and fundamentals

Planning, cash flow, regulatory context and the company's recurring decisions.

8 articles
Tax

How to reduce taxes in a small business (4 real levers)

It's not just about choosing the regime. See the 4 levers that reduce tax in a small business, including the 3 that almost no one tackles.

May 26, 2026 · VMAHUB team

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Tax

What a Family Holding Company Is and Why Successful Entrepreneurs Use It

A family holding company isn't just for billionaires. Understand what it is, what it really does and when it does — or doesn't — make sense for your family.

May 23, 2026 · Vivian Sampaio

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Tax

Tax Planning: How to Reduce the Tax Burden Safely

Legal tax planning to reduce the tax burden. See the three levers that best preserve cash safely.

May 19, 2026 · Vivian Sampaio

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Editorial

Welcome to /napratica: advisory content, no legalese

/napratica is VMAHUB's content hub: accounting, taxation and management explained without legalese, for entrepreneurs who need to decide and act.

May 18, 2026 · Vivian Sampaio

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Financial Management

ERP and accountant: how to integrate management and accounting

Why connecting your management system to accounting reduces errors, speeds up closings and improves the company's decisions.

May 16, 2026 · VMAHUB team

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How VMAHUB uses this hub

Knowledge to guide. Consulting to execute.

/napratica exists for business owners, partners, incorporated professionals, and managers who need to turn technical topics into practical decisions. The editorial standard is simple: explain with context, show real operational impact, and make clear when reading is enough or when the subject requires diagnosis with a technical owner.

The recurring tracks cover business formation, regime review, changing accountants, structure for incorporated professionals, financial management, contracts, and holdings. For deeper analyses on tax reform, CBS, IBS, Split Payment, and the 2026-2033 schedule, the place is the VMAHUB Blog.

  • Company formation, CNAE and classification.
  • Accounting, firm switching and operational routine.
  • Incorporated professionals (PJ), pró-labore and tax burden.
  • Cash flow, planning and managerial review of the business.
  • Contracts, corporate matters, holdings and asset protection.
Firm authority —

Meet Vivian Sampaio and the VMAHUB team

Understand who leads the firm, how VMAHUB integrates accounting, tax and legal, and why this view matters in sensitive business, asset and compliance topics.

Tax strategy —

Tax strategy to reduce the burden safely

When the discussion moves from concept into cash flow, margin and risk, this front structures tax planning, review and decisions without improvisation.

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