Version 4.4 of Costa Rica's electronic invoice has been mandatory since September 1, 2025, for all taxpayers in the general regime. No exemption by size: it applies equally to a large company, an independent professional and someone who just opened.
Many people experienced it as a format change their software vendor handled. What mattered came afterwards.
The change that actually matters
Since October 2025, TRIBU-CR replaced the old ATV portal, and everything is now handled through the Integrated Virtual Office. With it came the genuinely new part: the data in your 4.4 documents feeds your pre-filled tax returns. The monthly D-150 VAT form is assembled from what you issued and received.
That is the breaking point. Before, a miscoded invoice was a problem between you and your client. Now it goes straight into the form you file with.
Translated: the quality of your invoicing is now the quality of your tax return.
The 140-plus technical changes, condensed
Version 4.4 brought around 140 modifications to the XML. The ones you feel day to day:
- Electronic Payment Receipt, a new document to record actual collection separately from the invoice.
- New payment methods, with more detail than before.
- Standardized discount codes: putting in the amount is no longer enough, you have to say why.
- XML structure changes that forced a review of every hand-built integration.
What to check in your system
Three questions worth more than any regulatory summary:
- Do discounts carry the right code? This is the most repeated error, and the one that will not reconcile against the pre-filled return.
- Are you issuing Electronic Payment Receipts when required? If you sell on credit and do not separate issuance from collection, the flow is incomplete.
- Does your system store the tax authority's responses? Sending is not enough: you have to keep the acceptance. When a return does not reconcile, that record is the only thing that helps.
Simplified regime and new businesses
If you are in the simplified regime or about to register, the rule is simpler than it looks: the moment you issue electronic documents, it is in the current version. There is no reduced format for small businesses.
That is exactly why we built FacBox with five free documents a month, permanently: someone starting out should not have to choose between invoicing properly and paying a subscription before having revenue.
What comes next
With pre-filled returns working, the direction is clear: the tax authority already has your information, and what you declare is checked against it automatically. The room to fix things after issuing keeps shrinking.
It is worth spending an afternoon reviewing how your invoicing looks today, before it becomes an adjustment on a return.
FacBox is e-invoicing for Costa Rica, current with 4.4, with an app that issues offline, multi-company support and an API. If you want us to review your setup, get in touch.
Sources: Costa Rica Ministry of Finance · TRIBU-CR Integrated Virtual Office