Canada e-invoicing
No Canada 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 Canada support knows what adding it would involve. The countries Invoicerr does cover are listed in the country directory.
No system, authority, or platform is documented for Canada in this repository's own research; the only fact on record is that a Canadian e-invoicing path would route through the Peppol network.
What supporting Canada would involve
| System | Not established here. |
| Authority | Not established here. |
| Format | EN 16931 (Peppol BIS). This repository already builds and validates it (formats/peppol-bis-provider.ts, formats/ubl-provider.ts), so the format would not have to be written from scratch. |
| Transmission | Peppol Access Point. The Peppol transport was removed from this repository on 2026-09-15 for want of a real Access Point account, so one would have to be built. |
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 Canada.
country-policy/data/ca.json— which document actions Canada allows. Start here: without this file every action is refused with a 403, naming the country.country-identifiers/data/ca.json— which national identifier a party must carry.tax/tax-systems/data/ca.jsonandvat-rates/data/ca.json— the tax kind, and the rate ladder offered on an invoice line.correction-routes/data/ca.json— all eleven canonical correction routes,unverifiedwhere unresearched, never omitted.b2g-routing/data/ca.json— the channel and format a Canadian public buyer requires.transports/channel-policy/data/ca.json— whether a channel is legally required of a seller established in Canada, and from what date.archive/retention/data/ca.json— how long an archived document is kept, and what the duration is counted from.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: a Peppol Access Point is a transmission channel this repository does not implement, which is code, not a JSON file — see When a country needs more than a file.
Want Canada supported?
Check the open compliance issues first. If there is no issue for Canada, open one and name which of the files above you need — a request that names one mechanism is far more actionable than "please add Canada".