Tax and Accounting Services in Mexico

By EasyCo Updated October 10, 2026

Mexico’s tax system is digital and strict. The SAT receives every invoice in real time and expects monthly filings even from companies with no activity. This guide covers what a new company files in 2026 and why many foreign owners outsource it.

The main taxes

Tax	Rate	Filing
Corporate income tax (ISR)	30%	Monthly provisional payments, annual return by 31 March
VAT (IVA)	16% (8% for qualifying businesses in the northern and southern border regions)	Monthly
Employee profit sharing (PTU)	10% of taxable profit	Paid to employees each year
Dividends	10% withholding on dividends paid to individuals and non-residents	When paid
Payroll	ISR withholding, IMSS contributions and a state payroll tax	Monthly

Registration and ongoing compliance

Register with the RFC and obtain the company’s e.firma (see the RFC).
Issue every invoice as a CFDI electronic invoice, version 4.0.
Send the monthly electronic accounting (chart of accounts and trial balance) to the SAT.
File monthly ISR and VAT returns by the 17th of the following month, plus the monthly report on transactions with suppliers (DIOT).
File the annual return and keep the beneficial owner records up to date.

Accounting standards

Companies keep their books in Spanish and in Mexican pesos, under Mexican Financial Reporting Standards (NIF). Records must be kept for at least five years.

Common challenges

Monthly deadlines that apply even without revenue
Matching CFDI invoices with bank movements
Withholding rules for payments to individuals and foreign suppliers
Penalties and blocked invoicing certificates when filings are missed

Why outsource tax and accounting?

An outsourced team keeps the monthly calendar, issues and checks CFDI invoices, and reports in English to the parent company, so you do not need an in-house finance team from day one. For payroll filings, see payroll compliance in Mexico.

Get help from Easyco

Easyco coordinates the company setup in Mexico up to the issue of the RFC, and supports companies afterwards with tax, accounting, payroll and company compliance, including a registered office address. Read how to set up a company in Mexico, or contact us to discuss your project.