Ireland's new tax system could do a lot of good, or turn into a Tesco Clubcard run by the State.

In 2010 I was still handwriting VAT returns, sticking them in an envelope and posting them off to Revenue with a cheque, which was normal at the time even if it looks faintly medieval sixteen years later. A system is now being built where structured transaction data moves straight from a company's invoicing software to Revenue as the sale happens, and the distance between those two worlds has closed faster than most people outside tax would expect. Ireland's VAT Modernisation programme is being phased in gradually. From November 2028, large corporates will have to issue structured eInvoices for domestic B2B transactions and report some of that data to Revenue as it happens. Every business will need to be able to receive eInvoices from that date. The domestic obligation widens in 2029, and the EU's full cross-border reporting regime lands in July 2030. The official reason is fraud and error, and it's a fair one. The European Commission puts the EU's VAT compliance gap at €128 billion for 2023, 9.5% of what should have been collected, and reckons the wider eInvoicing push across the bloc could cut fraud by roughly €11 billion a year. Ireland runs a reasonably tight ship by EU standards, but every country is heading toward the same place, where Revenue watches transactions happen rather than being told about them two months later. Nobody has to guess what this looks like once it's running, because Italy already built it. Mandatory B2B eInvoicing has been in place there since 2019, with every invoice routed through a central government platform before it reaches the buyer. The European Commission's own VAT Gap Report found Italy's compliance gap dropped by nearly 11 percentage points in a single year, €12.7 billion, the biggest fall recorded anywhere in the EU. Italy's shadow economy is still estimated at around €174 billion a year, more than half of it VAT evasion, but real-time invoice data is the main reason that figure has been coming down. Ireland is essentially copying something that already works next door. A normal VAT return is a summary of the past, where a business adds up two months of sales and purchases and reports the net figure to Revenue. Real-time reporting does away with the summary entirely, because Revenue receives the actual transactions as they happen, what was sold, to whom, for how much, and where. Multiply that across the whole economy and what emerges isn't really a tax authority collecting periodic returns anymore, but something closer to a live, granular record of what the country is buying and selling at any given moment. That record is worth more than fraud detection. Governments already use VAT as a policy lever, just a slow and blunt one. Ireland does it through its various rates and exemptions, and Germany did it more dramatically in 2020 when it cut its standard rate from 19% to 16% for six months as part of a €130 billion Covid package. Researchers at Munich's ifo Institute later checked daily prices on around 130,000 supermarket products and found that roughly 70% of that cut made it through to shoppers, though it took them months of retrospective work to establish that. A government watching hospitality spending fall in one part of the country while it holds up everywhere else wouldn't need quarterly statistics to notice the pattern, or a study two years later to check whether an intervention had worked. It could cut VAT for that sector, in that region, temporarily, and watch what happened almost immediately, whether volumes recovered, whether prices actually fell, whether the saving reached customers or just sat with the business. The same approach would work by sector, by region, by more or less whatever the data can be sliced by. Nobody serious is proposing VAT rates that move daily by algorithm, but VAT could plausibly become a far sharper and faster-moving tool than the blunt national lever it has always been. What makes me less comfortable is what happens at the individual level rather than the sectoral one. If transaction data were ever matched against what the State already knows about income and savings, there is nothing technically stopping a system from taxing consumption differently depending on someone's ability to pay, so that a household with real savings ends up paying a different effective rate than one spending nearly everything it earns on the same basket of goods. Nobody in Ireland or Brussels is building that today, and the legal barriers, data protection law, constitutional rights, the near-certainty of losing any court challenge, are real. But the infrastructure now being built makes it technically possible for the first time, regardless of whether anyone ever decides to use it that way, and that alone deserves more attention than it's getting. AI adds another layer on top of this. Collecting millions of invoices is one problem, and making sense of them at scale is a different one, which is largely what AI in tax administration is now being used for. The European Commission already lists eInvoicing, real-time reporting and automated data matching among its main tools against the VAT gap. Fraud detection is the stated purpose, but a live, detailed view of how the whole economy is behaving comes bundled in with it either way. Governments have spent decades making fiscal decisions off statistics that arrive late, get aggregated into something close to meaninglessness, and describe an economy that has already moved on by the time anyone reads the report. A tax system reading transactions in real time changes that calculation, giving the State something close to a live view of how people respond to a decision almost as fast as it makes one. Tax data has always answered one question, which is how much someone owes. This new stream of data answers a much bigger question too, almost as a byproduct, which is what the economy is actually doing right now, in more detail than any official statistic has ever managed to capture. The return I used to fold into an envelope told Revenue what I owed, eventually, once the postman got around to it. The reporting regime replacing it tells Revenue almost everything else, continuously, and what happens with that difference has not been decided yet. There is a version of this where the data genuinely serves the public good, faster relief for struggling sectors, VAT settings tested against real evidence instead of guesswork, fraud caught before it does much damage. There is also a version that looks a lot like Tesco Clubcard with a state behind it instead of a supermarket, where every purchase builds a profile and the profile eventually decides how you get treated. Both are built from the same infrastructure. The only real question is which one Ireland ends up with, and that gets decided by choices being made now, not by the technology itself.