Please see below E-invoicing regulatory updates October 2026 and changes to mandates and go lives during September 2026.
France
France’s mandate went live on 1 September 2026. Large and mid-sized businesses must issue structured e-invoices and all businesses must be able to receive them. DGFiP stated no penalties would be applied during 2026 while businesses complete implementation, but obligations remain in force.
What this means for finance teams: Continue implementation planning and ensure systems, trading partners and compliance processes are aligned with confirmed timelines.
Spain
AEAT reiterated in September that the Ministerial Order underpinning Spain’s B2B e-invoicing model is expected in October 2026. A technical webinar provided further details on lifecycle reporting, faithful-copy submission and the expected phased timetable.
What this means for finance teams: Continue implementation planning and ensure systems, trading partners and compliance processes are aligned with confirmed timelines.
Poland
The Ministry of Finance announced plans to extend KSeF penalty relief until the end of 2027. Mandatory KSeF use from 1 January 2027 remains unchanged.
What this means for finance teams: Continue implementation planning and ensure systems, trading partners and compliance processes are aligned with confirmed timelines.
France / Peppol
France became the largest Peppol market and onboarding accelerated following the September go-live. Pennylane passed one million participant identifiers during September.
What this means for finance teams: Continue implementation planning and ensure systems, trading partners and compliance processes are aligned with confirmed timelines.
UK e-invoicing: where things stand
The UK position has not materially changed during September, but it remains important context for UK finance teams. The Government has confirmed mandatory e-invoicing for all VAT invoices from 2029. VAT invoices are typically issued for B2B and B2G transactions, rather than B2C transactions. An implementation roadmap is due at Budget 2026. In June 2026, the Government also confirmed that Peppol will be the core interoperability network for the UK regime. Detailed standards, validation rules, phasing, exceptions and transition arrangements are still being developed.
What this means for finance teams: There is no need to make assumptions about unfinished rules. Teams can still establish ownership, map current invoice channels, check structured-data capability, review supplier and customer readiness, and ask technology providers to confirm their plans in writing.
How Documation can help
E-invoicing changes how invoice data arrives, but it does not remove the wider Accounts Payable process. Invoices still need to enter the correct finance workflow, be matched or coded, pass business checks, follow approval rules and be managed when exceptions occur.
Documation can connect structured e-invoice data with existing ERP, Accounts Payable and Purchase-to-Pay workflows. Its e-invoicing module can retrieve invoice data and supporting documents from connected platforms, transform and validate the fields needed for processing, enrich supplier and company information, and pass the invoice into the Documation P2P solution. From there, existing controls such as duplicate checks, PO matching, coding, approvals, exception handling, audit evidence and reporting can continue in one joined-up process.
For organisations preparing for the UK regime, Documation also offers a practical readiness review. This helps finance teams assess current capability across ownership, systems, invoice data, suppliers and processes, identify the areas that need earliest attention, and frame the questions to ask existing providers without treating the review as a compliance certification.
Get in touch with the Listening team and get e-invoice ready now!
Sources
- UK Government consultation response: Promoting electronic invoicing across UK businesses and the public sector
- UK Government Tax Update 2026: Peppol core interoperability network announcement
- Sovos regulatory updates: France, Spain and Poland
- SharedServicesLink e-invoicing news: Spain, Poland and Peppol
