E-invoicing has a timetable now. Here's the part that touches you

Regulatory change is easy to ignore while it stays abstract, and e-invoicing was abstract for years: standards bodies, pilot schemes, acronyms breeding acronyms. That phase is over. There are now dates, fines and switched-on systems across most of Europe, plus a confirmed UK date that is closer than it sounds. Here is the map as we verified it in August 2026, and — more usefully — the short list of things a UK contractor should actually do about it.

A warning before the table: these dates move. Spain slipped a year, Latvia slipped two, and France keeps a legal option to nudge its start by a quarter. Treat any e-invoicing deadline you read (including these) as "verified on a date", not carved in stone.

The switch that started the clock

For years, an EU country that wanted to mandate e-invoicing needed a special derogation from Brussels, and businesses could simply refuse to accept e-invoices from suppliers. In April 2025, as part of the EU's VAT in the Digital Age package, both brakes came off: no permission needed, no buyer veto. Every mandate below either predates that change or was unblocked by it.

The dates, country by country

Two details the table flattens. In France, the September 2026 obligation to issue only catches large and intermediate companies; the most common error in vendor copy is claiming French SMEs must issue from 2026, and they must not — their date is 2027. And in Germany the 2027 line is the end of a transition rather than a big bang, applying to domestic trade between German-established businesses. A UK company is outside most of these regimes legally. Its European customers are not, which is the part that matters commercially.

The UK's own timetable

The UK sequence is short and worth knowing cold. A consultation ran in early 2025, and the government's response confirmed the decision taken at Budget 2025: e-invoicing becomes mandatory for VAT invoices from April 2029, covering B2B and business-to-government, with no phasing — one date for everyone. In June 2026 the government named Peppol as the network the UK system will run on, and promised the detailed roadmap — format, specifications, milestones — at the autumn Budget.

So the honest UK status is: mandate confirmed, network chosen, technical details pending, nothing compulsory today. That last clause is not a reason to file this under "later". The same government publication trail shows why they're bothered: figures cited by HMRC and DBT include an NHS trust whose e-invoices were paid almost twice as quickly as its paper ones, and the Australian government paying e-invoice suppliers within 5 days against 20 for the rest. Cash flow is the carrot; the VAT gap is the stick.

Meanwhile the tax office is already digitising you from another direction. Making Tax Digital for Income Tax went live in April 2026 for sole traders and landlords over £50,000, drops to £30,000 in 2027 and £20,000 in 2028. Anyone still running their business records on paper is being moved off it, mandate by mandate.

What to actually do this year

Not much, which is rather the point of reading the timetable early. Four things, none urgent, all cheap now and expensive later:

• Find out what your invoices are made of. Ask whoever provides your invoicing — software vendor, accounts package, the Word template folder — one question: when we send an invoice, does any machine-readable version exist, in any format? If the answer is a blank look, you've learned something important for free.
• Start capturing customer VAT numbers and purchase references. They're the fields every structured-invoicing regime leans on, and they can't be backfilled onto invoices you've already sent. Collecting them now costs a line on a form.
• If you invoice European clients, expect the email. Procurement departments in France, Germany and Belgium are rebuilding their intake around structured invoices on the schedule above. "Can you send us a proper e-invoice?" will arrive from a customer before it arrives from HMRC, and the supplier who says yes without drama is easier to keep buying from.
• Be suspicious of per-invoice fees. Structured data is a property of a well-built invoice, not a metered add-on, and paying rent on your own compliance ages badly over a decade of mandates.

We should say where we stand, since this is our patch. Invoices raised in BlueWave already go out as Factur-X e-invoices at the EN 16931 profile — the format French platforms are required to handle and German rules accept — with the structured data validated against the official European rulebook before each PDF is built, at no extra cost, because we think that's simply what invoicing software should do now. What we won't claim is network compliance: no file format connects you to France's approved platforms or the UK's future Peppol rails, whatever anyone's brochure implies. We wrote a plain-English explainer on what an e-invoice actually is if this one arrived cold.

The timetable above will drift, and we'll re-verify it as the dates approach. The direction won't. Somewhere between now and April 2029, "the invoice is a PDF someone retypes" stops being how business documents work — and the firms who noticed early will have spent the transition collecting data instead of paying catch-up.