UK VAT Threshold 2026: When You Must Register

The threshold: £90,000, confirmed for 2026

The VAT registration threshold is £90,000 of taxable turnover, and it remains unchanged for 2026 — no changes were announced at the November 2025 Budget, so the figure that's applied since April 2024 continues. The deregistration threshold (below which you can leave the scheme) sits at £88,000.

Three words in that sentence do heavy lifting. Taxable turnover — not total turnover, not profit. £90,000 — a cliff edge, not a gradual phase-in. And the tests are rolling, which is where everyone trips up.

Test 1: the backward look (the one everyone forgets)

At the end of every month, add up your taxable turnover for the previous twelve months. If it exceeds £90,000, you must register within 30 days. The twelve months roll forward every month — it's not the tax year, not the calendar year, not your accounting year.

A business doing £8,000 a month crosses the line in month twelve (£96,000 rolling). A seasonal business doing £15,000 a month for seven months (£105,000) crosses it in month seven even though the "year" isn't over. You are supposed to be checking this monthly. Almost nobody does until their accountant asks — which is why most late registrations are discovered, not declared.

Test 2: the forward look (the one that ambushes you)

You must also register if, on any single day, you expect your taxable turnover in the next 30 days alone to exceed £90,000. Sign a £95,000 contract on the 14th and you're liable from the 14th — even if you've only invoiced £20,000 so far this year.

This catches project businesses: the builder who lands one big job, the consultant who signs a six-figure retainer, the wholesaler with a single large order. The 30-day forward test doesn't care about your history. One contract can trigger it.

Miss either test and the penalties stack: a failure-to-notify penalty (a percentage of the VAT you should have charged), plus the VAT itself backdated to when you should have registered — VAT you probably didn't charge your customers, so it comes out of your margin.

What counts as taxable turnover

Counts: everything you sell that isn't exempt or outside the scope of VAT — including zero-rated sales (children's clothes, most food) even though no VAT is charged on them. Also goods you hire out, lend, barter, or give away, and business goods you take for personal use.

Doesn't count: exempt supplies (insurance, finance, health services, education), sales of capital assets like a van, and anything outside UK VAT scope.

The zero-rated trap is the classic: a children's clothing shop with £95,000 of sales and £0 of VAT charged still has to register, because zero-rated sales count toward the threshold. Plenty of food and kids'-goods businesses discover this the expensive way.

Voluntary registration: when it pays

You can register before hitting £90,000, and sometimes you should:

You sell mainly to VAT-registered businesses. They reclaim the VAT you charge, so your prices don't really rise for them — but you get to reclaim VAT on all your expenses. A B2B consultant with £30,000 of VAT-able costs reclaims £6,000 a year by registering early. Free money, minus the admin.

You want to look bigger. "VAT registered" signals scale to some clients. It's a weak reason on its own, but combined with real reclaim value it tips the balance.

You're about to make a big purchase. Registering before buying £40,000 of equipment lets you reclaim £8,000 of VAT (subject to the four-year pre-registration goods rule). Time the registration to the purchase.

When it doesn't pay: you sell to consumers who can't reclaim VAT. Adding 20% to your prices — or absorbing it into your margin — usually costs more than the reclaimed input VAT saves. A consumer-facing business at £60,000 turnover with £10,000 of VAT-able expenses gains £2,000 of reclaims but risks £12,000 of price rises. Don't do it.

The Flat Rate Scheme can sweeten voluntary registration for small businesses: you charge 20% but pay HMRC a fixed lower percentage of gross turnover (commonly 12–16.5% depending on trade), pocketing the difference as long as your input VAT is low. Run the numbers — it suits labour-heavy services, not goods-heavy traders.

Model the price impact with the VAT & Sales Tax Calculator Online before you decide — seeing the with-and-without figures side by side makes the voluntary question concrete.

After you register: the admin reality

Registration brings quarterly (usually) VAT returns under Making Tax Digital — filed through compatible software, not a spreadsheet emailed to HMRC. You charge 20% standard rate on most sales (reduced 5% and zero rates apply to specific goods), reclaim VAT on business purchases with valid invoices, and pay the difference.

Deadlines bite: the return and payment are due one month and seven days after the quarter end. Late filing and late payment both attract penalties under the points-based system — and interest accrues from day one. Set calendar reminders for all four quarters the day you register.

Keep every VAT invoice, not just receipts — card slips without the supplier's VAT number don't support a reclaim. And if your turnover later drops below £88,000, you can deregister — but check first, because the deregistration itself triggers a final VAT return on stock and assets held.

Making Tax Digital: what registration actually requires

VAT was the first tax to go fully digital, and there's no paper route anymore. Under Making Tax Digital, your VAT returns must be filed through MTD-compatible software — bridging spreadsheets (a spreadsheet linked to filing software) count, but typing figures into HMRC's old portal doesn't.

For most small businesses this means a £15–£30-a-month subscription to accounting software, plus the discipline of keeping digital records as you go rather than reconstructing quarters from a shoebox. The upside is real: businesses on proper software spot threshold crossings earlier, reclaim more input VAT (fewer lost receipts), and file in minutes instead of days. If you're registering anyway, set the software up in week one — retrofitting digital records onto a paper system is where the pain lives. And keep the software after deregistration too: HMRC can ask for VAT records up to six years back, and "my subscription lapsed" is not a defence.

Your one action this week: add up your last twelve months of taxable turnover — not profit, not bank deposits, *taxable supplies*. If it's over £80,000, start checking monthly from now on. The businesses that get penalised aren't the ones at £120,000 ignoring the rules; they're the ones at £93,000 who never added it up. Set a recurring calendar reminder for the first of every month. Ten minutes with a spreadsheet is the cheapest insurance policy your business will ever buy.