Tools
Tools for everyday work with SAT.
Use them without signing up. They run in your browser: what you type never leaves your computer.
IVA (VAT) calculator
Add or remove IVA at 16% or the border region's 8%, with IVA and ISR withholdings.
Open →Coming soon
Is your supplier on the 69-B list?
Look up an RFC on the 69-B list SAT publishes.
Coming soon
CFDI XML validator
Check a CFDI 4.0's structure and data.
Coming soon
ISR calculator
ISR on a salary or on your provisional payments, with the current tables.