Renew SAT e.firma 2026: requirements, expiration, and backup before it blocks you
Guide to renewing SAT e.firma in 2026: expiration, file backup, appointments, legal representative, and what to check before you need it.
Understand your taxes.
Make better decisions.
Clear steps for SAT, CFDI, and tax obligations.
Negative SAT Compliance Opinion: How to Fix It in 2 Steps
Negative compliance opinion: identify omitted returns, pay outstanding balances, wait 72 hours, and clarify with evidence if the...
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...
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...
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...
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...
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...