My account
Guides

Understand your taxes.
Make better decisions.

Clear steps for SAT, CFDI, and tax obligations.

Miguel González explaining in a friendly way how to verify a supposed email from the SAT.
Tax Mailbox10 min read

What to Do If You Receive an Email from the SAT? 3 Steps to Verify It Without Falling for Scams

Receiving an email from the SAT doesn't automatically mean a fine or audit: verify its authenticity and confirm the notice within your...

Andrés Chávez · Jul 10, 2026Read guide →
Taxpayer and accountant validating a credit balance before requesting a refund.
Guías8 min read

SAT tax refund in Mexico: 2026 review guide

Review a Mexican SAT tax refund before filing: automatic-return rules, FED requests, CLABE ownership, evidence, response periods and...

Valeria Matoviche · Jun 16, 2026Read guide →
Merchant issuing and reviewing an electronic invoice for a customer.
Guías7 min read

CFDI electronic invoicing in Mexico: 2026 guide

A 2026 guide to CFDI electronic invoicing in Mexico: receiver data, tax fields, PUE and PPD, payment complements, cancellations and...

Cassandra Torres · Jun 15, 2026Read guide →
Accountant preparing the chart of accounts, trial balance, and acknowledgments for electronic filing.
Guías8 min read

SAT electronic accounting 2026: XML and deadlines

Mexico SAT electronic accounting guide for 2026: chart of accounts, grouping codes, trial-balance deadlines, XML validation, rejections...

Bryan Carrizalez · Jun 8, 2026Read guide →
Payroll specialist checking CFDI receipts against employee tax data.
Payroll CFDI14 min read

SAT Payroll CFDI Guide: How to Issue Payroll Receipts Without Recurring Errors

A practical guide to issuing payroll CFDI in Mexico without recurring errors: data review, payroll calendar, incidents, reconciliation...

Valeria Matoviche · Jun 5, 2026Read guide →
Finance lead and accountant finalizing a company's 2026 annual return.
Annual Return15 min read

2026 Annual Return for Legal Entities in Mexico: Deadlines, Requirements and Checklist

A practical guide to preparing the 2026 annual return for legal entities in Mexico: accounting close, documents, reconciliations and...

Héctor Jasso · Jun 4, 2026Read guide →
Independent professional preparing a 2026 annual return step by step.
Guías7 min read

2026 annual tax return for individuals in Mexico

Guide to Mexico's 2026 annual tax return for individuals: filing duties, prefilled data, deductions, refunds, payments and late corrections.

Jimena Cruz · May 31, 2026Read guide →
Previous pagePage 7 of 8View more guides
Fintax

Your accounting is in good hands.

Services

  • Plans
  • Tax advisory
  • Tax and employer registration
  • Tax regularization
  • Monthly SAT tax compliance
  • Invoicing
  • Payroll and employer procedures
  • Specialized tax services
  • SAT procedures
  • Annual tax return
  • Follow-up
  • Reconciliation
  • SAT alerts
  • Remote support
  • Accountants by state
  • Accounting for RESICO
  • Compare plans
  • Use cases

Resources

  • News
  • Blog
  • Guides
  • Tax calendar
  • Tools
  • Downloads
  • AI prompts
  • Fintax updates

About

  • Who we are
  • Team
  • How we work
  • Testimonials
  • Security
  • Book advisory

Help

  • Contact
  • Frequently asked questions
  • Terms and conditions
  • Privacy notice
(81) 2188 9524

Galeana 437, Colonia Centro 64000 Monterrey, N.L.

Antonio L. Rodríguez 2100 Colonia Santa María 64650 Monterrey, N.L.

© 2026 Fintax. All rights reserved. Made by Metanoia Talent.

Privacy noticeTerms and conditionsCookies