Fintax
Services
Resources
About
Help
Sign in

Guides to move forward without confusion.

Clear steps for SAT, CFDI, and tax obligations.

Person reviewing the reason for a rejected refund and preparing evidence for SAT.
SAT Refunds

Rejected Tax Refund by SAT: Causes and What to Do

When SAT does not refund your tax credit balance, review the result, classify the inconsistency, and decide whether to clarify, correct,...

Aug 16, 20269 min read

Most popular

Taxpayer and accountant validating a credit balance before requesting a refund.
Guías

SAT Tax Refund Guide: Review Your Credit Balance Before Requesting It

Jun 16, 20263 min read
Miguel González explaining in a friendly way how to verify a supposed email from the SAT.
Tax Mailbox

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

Jul 10, 202610 min read

More guides

8 of 24
Taxpayer and accountant organizing a late return with acknowledgment and payment slip.
SAT Returns

Late Filing with the SAT: Penalties, Surcharges, and How to Regularize

Aug 14, 20269 min read
Business owner preparing employer registration and file for the first employee.
IMSS

IMSS Employer Registration: What to Do Before Hiring Your First Employee

Aug 12, 202612 min read
Analyst calculating ISR and VAT withholdings for fees and rent.
Withholdings

ISR and VAT Withholdings When Paying Fees or Rent

Aug 8, 202612 min read
Landlord reviewing contract, CFDI, and tax returns for a property.
Leasing

Leasing for Individuals: ISR, IVA, CFDI, and Tax Returns

Aug 4, 202613 min read
Online merchant reconciling platform sales, fees, withholdings, and bank deposits.
Digital Platforms

Taxes for Selling on Digital Platforms, Apps, or Your Own Store

Jul 29, 202613 min read
Entrepreneur preparing an appointment folder and secure storage for a first SAT e.firma.
SAT e.firma

How to Obtain Your SAT e.firma for the First Time: Requirements, Appointment, and Files to Keep

Jul 27, 202612 min read
Accountant validating CFDI, payment, and evidence before crediting VAT.
VAT

Creditable VAT in Mexico: Requirements, CFDI, and Proof of Payment

Jul 24, 202612 min read
Financial director correcting inconsistencies in her company's compliance opinion.
Tax Compliance

SAT Compliance Opinion for Companies 2026: How to Check It and Correct Inconsistencies

Jul 22, 202610 min read

+500 clients already trust us

Book a free consultation
Fintax

(81) 2188 9524

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

(81) 2188 9524

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

  • ES/
  • EN

SERVICES

  • Plans
  • Advisory
  • Follow-up
  • Reconciliation
  • SAT alerts
  • Remote support
  • Portal

RESOURCES

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

ABOUT

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

HELP

  • Contact
  • Frequently asked questions
  • Terms and conditions
  • Privacy notice

Copyright © 2026 Fintax. Made by Metanoia Talent.