Invoicing Platform & Tax Integration
// Tax & Invoicing
Electronic invoicing that has to satisfy the SAT, not just the accounting team. We built the bridge between a client's invoicing system and PAC stamping, plus the tax calculation engine underneath it.
What the work involved
- CFDI 4.0 stamping through a PAC, handled end to end.
- A PHP bridge connecting the client's existing invoicing system to the stamping service, without forcing a rewrite of either side.
- A tax calculation engine built on SAT catalogs, so the rules live in one auditable place.
- Designed for a domain where "mostly correct" is not a passing grade — a rejected stamp is a business problem the same day.
We keep our clients' names, figures, and locations confidential. We are happy to walk through the technical detail of this work with you directly.
Is this your problem too?
If invoicing is a monthly fire drill, or your CFDI integration was built by someone who has since left, this is a well-worn path for us.
Tell us what you are working with and we will come back with a written estimate — scope, timeline, and cost. No obligation, and you will speak to the people who would actually build it.