DGI — Cameroon e-invoicing

Invoicerr does not support Cameroon

No Cameroon data file exists anywhere in this repository — no country policy, no identifiers, no tax system, no transmission channel. Nothing on this page is implemented. It is here so that someone who wants Cameroon support knows what adding it would involve. The countries Invoicerr does cover are listed in the country directory.

Cameroon's e-invoicing is administered by the DGI, the Direction Générale des Impôts, through its e-Invoice System.

What supporting Cameroon would involve

System	DGI e-Invoice System
Authority	DGI — Direction Générale des Impôts
Format	A national XML schema. No provider in backend/src/modules/documents/formats/ builds it today.
Transmission	Submission to the DGI e-Invoice System. No transport in backend/src/modules/documents/transports/ talks to it today.

Inherited, unverified

Carried over from an earlier research pass in this repository's own history, and never checked against a primary source. Leads, not facts — confirm every line before writing it into a data file.

• Described as a clearance model, with tax-authority authorization required before an invoice is valid.
• Digital signature named as a requirement.

Which catalogues a contributor would add

Adding a country is data, not code. Adding a country is the procedure and the contract each file has to satisfy; this is only the shopping list for Cameroon.

• country-policy/data/cm.json — which document actions Cameroon allows. Start here: without this file every action is refused with a 403, naming the country.
• country-identifiers/data/cm.json — which national identifier a party must carry.
• tax/tax-systems/data/cm.json and vat-rates/data/cm.json — the tax kind, and the rate ladder offered on an invoice line.
• correction-routes/data/cm.json — all eleven canonical correction routes, unverified where unresearched, never omitted.
• b2g-routing/data/cm.json — the channel and format a Cameroonian public buyer requires.
• transports/channel-policy/data/cm.json — whether a channel is legally required of a seller established in Cameroon, and from what date.
• archive/retention/data/cm.json — how long an archived document is kept, and what the duration is counted from.

Add mentions/, content-requirements/, country-fields/, reporting/ and domestic-reverse-charge/ only where the law actually gives them content.

Data alone will not finish the job here: the DGI e-Invoice System is a transmission channel this repository does not implement, and its XML schema has no format provider. Both are code, not a JSON file — see When a country needs more than a file.

Want Cameroon supported?

Check the open compliance issues first. If there is no issue for Cameroon, open one and name which of the files above you need — a request that names one mechanism is far more actionable than "please add Cameroon".