Design draft 1 · October 12, 2026 · Not published. Dashed boxes mark copy or data still missing.
Tax and accounting firm · Monterrey, Mexico

Tax, accounting and compliance for companies operating in Mexico.

We handle monthly and annual tax compliance for Mexican companies and for U.S. companies with operations in Mexico, with a legal team for regulatory permits in the Monterrey metro area.

Companies and individualsU.S. companies in MexicoSmall businesses (RESICO)
October to December

Review your fiscal year before you file the annual return.

Between October and December there is still time to check how your company is filing, find differences and correct them before the annual return. That way you avoid discrepancies with the SAT, Mexico's tax authority, and penalties.

Request my tax review
  1. Short reviewWe look at your company and how it is filing, like a brief audit.
  2. Differences and errorsWe tell you what we found and the risk behind each item.
  3. Self-correctionWe help you correct in time to file the annual return properly.
Services

Tax and accounting at the core, with a legal team alongside.

All under one brand: TAX AS.

Tax

Monthly and annual tax compliance

Your tax obligations met every month and in the annual return.

Tax review

A short review to find errors before the authority does.

Tax planning

Decisions for the year made with the tax impact in view.

VAT refunds

Filing and follow-up of the refund request.

Anti-money laundering

Required notices and compliance manuals, mainly for real estate companies.

Accounting and corporate

Accounting

For companies and individuals, including monthly tax calculations.

Payroll and REPSE

Payroll administration and REPSE registration.

Mergers and liquidations

Company liquidation covering the legal, accounting and tax sides.

Statutory examiner

Statutory examiner (comisario) for companies and audits.

Legal and regulatory

Monterrey metro area, Santiago and Saltillo. Liquor licenses also in San Pedro.

Liquor licenses

Municipal consent and state license for restaurants, warehouses and stores.

Zoning and permits

Land use, feasibility studies, construction permits and official street numbers.

Contracts and corporate

Contracts, articles of incorporation, shareholder meetings and condominium regimes.

Property transfer tax and property tax

Filings with available subsidies in Monterrey, Santiago, Santa Catarina and Guadalupe.

Full service list and final descriptions: to be adjusted with Axel's brochure and Sofía's catalog (week 2).
U.S. companies

Representation, tax administration and liquidation in Mexico.

For U.S. companies that open, run or close their company in Mexico. Beyond the legal side of a closing, we act as your representative in Mexico.

Cases or companies Axel approves mentioning, and whether this block carries a case with figures.
  • Representation in Mexico

    Company registration and representation before the authorities.

  • Tax administration

    Accounting, taxes and compliance for your Mexican operation.

  • Liquidation

    We start with your assets and liabilities and what happens to each. Once that is settled, the liquidation process begins.

Tax review

Answer a few questions and see what to review before year end.

Start the questionnaire For guidance only. Not tax or legal advice. Questionnaire items: built from the kickoff form answers.
Who we work with

From individuals to mid-sized international companies.

U.S. companies in Mexico

Representation, tax administration and liquidation.

Mid-sized companies

Mexican and international, with monthly and annual compliance.

Individuals and RESICO

Accounting and taxes kept current.

Restaurants and franchises

Liquor licenses and permits to open or regularize.

Real estate and developers

Zoning, property transfer tax and anti-money laundering.

Bio and photos of Axel Martínez and Sofía Quiroz del Valle ("The firm" section).
Insights

Changes in Mexican tax rules, explained.

Every article is reviewed by TAX AS before it goes live.

Proposed topic

How the tax basis of shares is determined in Mexico

Article to be written.
Proposed topic

What to review before filing the annual return

Article to be written.
Proposed topic

Liquidating a company in Mexico: where to start

Article to be written.
Contact

Let's talk about your company.

Call us or leave your details and we will get back to you.

WhatsApp number, contact email and office address. Is there an English-speaking contact?
Sample form: it does not send yet. Recipient still to be defined.