What Is VAT and How Does It Work Under Current Tax Law?

VAT, or Value Added Tax, is one of the pillars of tax law in Mexico and one of the obligations that plays the biggest role in the day-to-day operations of any company. It's an indirect tax levied on the consumption of goods and services, which businesses must calculate, pass on, and report in accordance with current regulations.

For business owners and executives, understanding VAT isn't an academic exercise—it's a fundamental part of sound accounting and the financial health of the business. Properly managing this tax helps avoid issues with tax authorities, improves cash flow, and provides certainty about the figures reported month after month.

Broadly speaking, VAT applies at different stages of the production and sales chain, and managing it correctly requires:

  • Knowing which activities are taxable, exempt, or subject to a 0% rate.
  • Correctly calculating the tax charged to customers and the tax that can be credited.
  • Meeting the deadlines and formats set out in tax law.
  • Keeping accounting records well-documented in case of any review by the authorities.

What Is VAT According to the Law?

Under the law, VAT is a tax triggered by carrying out acts or activities such as the sale of goods, the provision of independent services, granting temporary use or enjoyment of goods, and the importation of goods or services. Tax regulations set out who is required to pay it, which rates apply, and what the filing and payment obligations are.

This legal framework is designed so that VAT is passed along transparently throughout the commercial chain, ensuring that the end consumer ultimately bears the economic cost of the tax, while businesses act as intermediaries collecting it on behalf of the tax authority. That's why correctly interpreting the law and applying it in practice to a company's accounting shouldn't be left to chance.

How VAT Works in Practice

In practice, VAT translates into everyday operations that every company carries out: issuing invoices with the tax added, recording the creditable VAT from expenses and purchases, and filing the corresponding returns with the tax authority.

A simple example helps illustrate how it works: a company that sells a product or service charges VAT to its customer; at the same time, that same company pays VAT on its own purchases and supplies. At the end of the period, the difference between the VAT charged (collected) and the creditable VAT (paid) determines whether the company owes tax to the authority or has a balance in its favor.

This kind of scenario plays out constantly in companies of all industries and sizes, which highlights why keeping organized accounting records is so important:

  1. Identify each transaction as taxable, exempt, or subject to a 0% rate.
  2. Record the VAT charged on sales in the books.
  3. Record the creditable VAT on purchases and expenses.
  4. Calculate the difference to determine the tax owed or the balance in favor.
  5. File the return within the deadlines set by tax law.

When any of these steps fails—whether due to recording errors, incomplete documentation, or a lack of familiarity with the regulations—a company can run into tax issues that affect both its finances and its operational peace of mind.

Contadoor's Services for VAT Management

At Contadoor, we understand that VAT isn't managed in isolation—it's part of a comprehensive accounting and tax strategy. That's why we offer a range of services designed to help every company comply with tax law confidently and with professional backing.

Service What It Involves
Accounting and Tax Comprehensive management, recordkeeping, and tax compliance aligned with local and international standards.
Financial Audit A methodological approach based on International Standards on Auditing (ISA).
Transfer Pricing Studies and documentation following OECD guidelines and local regulations.
Payroll 360° Calculation, e-filing, and compliance with labor and social security obligations, including payroll outsourcing with full confidentiality and compliance.

Each of these services connects directly to sound VAT management: organized accounting makes it easier to calculate the tax correctly, a financial audit confirms that records are reliable, and transfer pricing documentation ensures consistency in transactions between related parties—all within a comprehensive compliance framework.

Why Choose Contadoor for VAT Management?

Contadoor has a dedicated senior team with more than 15 years of experience serving both domestic and international companies. Unlike other firms, at Contadoor every client is supported directly by partners and senior specialists—not junior staff—which means personalized attention and well-founded tax decisions.

Our methodological approach follows International Standards on Auditing (ISA) and industry best practices, with competitive fees compared to traditional firms. This allows companies to access top-tier service without sacrificing quality or a hands-on approach.

Companies like Trafigura, Segula, Ecoce, Drivin, and Zehr, among others, have trusted Contadoor to manage their accounting and tax services.

Contadoor also serves domestic and international companies throughout Mexico, not just Mexico City, with a physical office at Av. Sonora 27, Roma Norte, CDMX.

If your company needs clarity and support in managing VAT and other tax obligations, Contadoor is your gateway to your company's financial health. Schedule an assessment with our team by emailing contacto@contadoor.com.mx or calling 55 1897 9607.