Resources
Learn, calculate and connect.
SAT guides, terms explained, tools in your browser and the platform's documentation.
13 posts
Blog
SAT news and step-by-step guides.
- Buzón Tributario: fines from January 2027 and how to enable it
- Tax changes for 2027: what actually changes for accountants and SMBs
- Payment complement (REP): when to issue it and what happens if it's missing
8 terms
Glossary
CFDI, e.firma, 32-D, DIOT and more, with their legal basis.
69-B list · CFDI · CIEC · Compliance opinion · CSD · DIOT · e.firma · REP
1 tool
Tools
Calculators and validators in your browser.
- IVA (VAT) calculator