Watch how an invoice leaves most construction offices. Someone opens last month’s in Word, hits Save As, changes the date, the job name and the numbers, prints it to PDF and attaches it to an email. The template has the logo at the top and the bank details at the bottom, and it has done the job for twenty years.
From April 2029, for invoices between VAT-registered businesses, it stops doing the job. Not because anyone will be arrested for sending a PDF, but because the law will require the invoice itself to travel a different way.
What was actually announced
At the Budget last November, the government confirmed that electronic invoicing — e-invoicing — will become mandatory for VAT invoices from April 2029. A VAT invoice is the formal version of a bill that VAT-registered businesses have to issue to each other: your details, theirs, both VAT numbers, what was supplied, and the VAT charged on it. The mandate covers invoices between businesses and from businesses to public bodies.
An e-invoice is not a PDF. A PDF is a picture of an invoice — a human being reads it, then retypes the numbers into their own system. An e-invoice is the data itself, in a structured format one piece of software sends straight into another, with nobody retyping anything. The difference is roughly the difference between posting someone a photograph of a cheque and making a bank transfer.
Then last month the government settled how these invoices will travel: a network called Peppol. The name is left over from what it was built for — Pan-European Public Procurement On-Line, a system set up so suppliers could bill European public bodies electronically. It has since grown into a general postal service for invoice data: your software hands an invoice to an accredited access point, your customer’s software collects it from theirs. One idea was considered and dropped, at least for now — invoices will not be copied to HMRC in real time. The taxman has set the rules of the road but isn’t reading the post.
Everything else — who goes first, whether smaller firms get longer, what counts as compliant software — is promised in a detailed roadmap at this year’s Budget in November.
The right amount to spend on this today is nothing
You are going to see this deadline used to sell things. Three years is a long runway, and somewhere on it a vendor will offer you an “e-invoicing readiness platform” with a compliance dashboard and a webinar.
Don’t. If your sales invoices already come out of a proper accounts package — Xero, Sage, QuickBooks or similar — then April 2029 is mostly your software vendor’s problem, not yours. They will add Peppol the way they added digital VAT filing when Making Tax Digital arrived in 2019, and your involvement will be a settings screen and a mildly annoying afternoon. Ask them about it in 2028. Anyone selling you urgency this summer is selling you exactly that: urgency.
Construction, as usual, is the awkward case
There is one honest complication. A lot of construction contract work doesn’t run on invoices at all. On contract jobs you typically send an application for payment — a document that says here is the work we’ve done this month and here is what you owe us — and the formal VAT invoice, where there is one, follows later, once the sums are agreed. How a mandate written around invoices lands on an industry that bills by application hasn’t been spelt out yet. It is precisely the sort of detail November’s roadmap needs to answer.
So if most of your turnover moves by application, be sceptical of anyone who claims to know exactly what 2029 requires of you. Nobody knows yet. Including me.
The problem the deadline points at
Here is why I’m writing about a rule that’s three years away. The government has just fixed a date for something that has been quietly true for a decade: an invoice is data, not a document.
In a firm that runs on Word templates and PDFs, the sales ledger is a folder of files and somebody’s memory. Ask what’s outstanding across all live jobs right now, and someone has to go and compile it. Ask what was billed on a job that finished last year, and someone goes hunting through attachments. Ask which applications turned into invoices and which are still being argued about, and you get a shrug and a best guess.
A firm whose invoicing comes out of a system that also knows its jobs answers all three at a glance. Not because of some platform — because the numbers were captured as numbers the day they were created, instead of being flattened into a picture of numbers and emailed away.
The 2029 mandate doesn’t create that problem. It just sets a date by which you’ll be forced to fix it — in a hurry, on a vendor’s timetable, alongside everyone else. Fixing it on your own timetable is cheaper, and the benefit starts the day you do it, not in April 2029. The deadline is the excuse. The reason is being able to answer “what are we actually owed?” without a morning’s work.
Where this doesn’t apply
If most of your work is for private householders — extensions, refurbs, domestic maintenance — this mandate largely misses you. On the current plans it covers invoices between businesses and to public bodies, not bills to consumers. Carry on.
And if every sales invoice you issue already comes out of your accounts package, you can close this tab with a clear conscience. Put a note in the diary to ask your vendor about Peppol in a couple of years, and spend the time you’ve saved chasing the invoices themselves.
But if your invoicing starts life in Word, if applications are typed fresh each month, and if the honest answer to “what are we owed right now?” is a folder called Invoices 2026 and a long look at a spreadsheet — that’s worth fixing regardless of what the taxman does in 2029. Get in touch.