Making Tax Digital for VAT: a 2026 guide and reality check.

Making Tax Digital for VAT requires every VAT-registered business in the UK to keep digital VAT records, preserve digital links between those records and the return, and submit through HMRC-compatible software rather than the online portal. It has applied to all VAT-registered businesses since 1 April 2022, whatever their turnover.

What does Making Tax Digital for VAT actually require?

Making Tax Digital for VAT became mandatory for all VAT-registered businesses on 1 April 2022, extending the rules that previously applied only to businesses above the (then £85,000) VAT threshold. The current HMRC VAT registration threshold and the full Making Tax Digital for VAT guidance are both published on GOV.UK. Four years on, the regime is unfamiliar to almost no one in UK finance. The headline obligations remain unchanged:

• Keep digital records of all VAT transactions in HMRC-approved software (or in a spreadsheet linked via API to bridging software).
• Submit VAT returns digitally via the API, no more manual key-in to the HMRC web portal.
• Maintain "digital links" between the source records and the submitted return. A digital link is a digital transfer of data, copy-pasting between spreadsheets does not count.

Which MTD for VAT mistakes do we still see in 2026?

1. Manual edits to the bridging-software output

By far the most common compliance failure we see at takeover. A business has Xero or QuickBooks generating the figures, the output is exported to Excel for "checks", a number gets manually adjusted, and the adjusted figure is submitted via bridging software. This breaks the digital link chain in two places, between the accounting software and Excel (depending on how the export happens) and between the edited Excel and the bridging tool.

The remedy is structural: any adjustment must be made in the accounting software (via a journal entry), not in a downstream tool. Where adjustments need explanation, the journal narration is the right place: auditable, dated, and inside the digital-link chain.

2. Misapplied partial-exemption methods

Partial exemption applies to businesses making both taxable and exempt supplies, typically property businesses, education providers, financial services and certain charities. The standard method (apportioning input VAT by reference to taxable turnover) is rarely the right answer for any of these sectors, but we routinely take over books where partial exemption is applied as if it were.

HMRC permits special methods (sector-specific apportionment by floor area, headcount, transaction value, etc.) on application, under VAT Notice 706. Property businesses hit this hardest, which is why it also appears on our landlord and property SPV accountants page. For partially-exempt businesses, the difference between the standard method and a properly-designed special method is typically 8–20 percentage points of recoverable input VAT, material amounts.

3. EU OSS / IOSS confusion post-Brexit

For UK businesses selling B2C into the EU, the post-Brexit position is now well-established but routinely mishandled. Distance sales above the €10,000 threshold require either: (a) registration in each EU country of sale (the old default), or (b) registration under the EU One Stop Shop (OSS) scheme through a single EU member state. Low-value imports under €150 follow the Import One Stop Shop (IOSS) regime, administered through the EU One Stop Shop.

The recurring error: UK Shopify and Amazon brands assume the UK VAT registration covers EU sales. It doesn't. EU customers buying directly receive a VAT-inclusive price that should include destination-country VAT, and the seller must register and remit. Many brands have been doing this incorrectly for three years and accumulated material historic exposure. We unwind that through our e-commerce accounting service and, where the ledger itself needs rebuilding, catch-up bookkeeping.

What's coming: MTD for Income Tax Self Assessment

MTD for Income Tax, long delayed, finally begins phasing in from April 2026 for sole traders and landlords with combined business or property income above £50,000. We cover the mechanics in full in MTD for Income Tax Self Assessment. From April 2027, the threshold drops to £30,000. The mechanics are different from MTD for VAT:

• Quarterly digital updates to HMRC (not full VAT-style returns), summarising income and expenses.
• An end-of-period statement at year-end with adjustments.
• A final declaration finalising tax liability.

For self-employed clients and landlords already on modern cloud accounting software, the transition is mostly invisible, the software handles it. For clients on spreadsheets or legacy desktop tools, April 2026 (or 2027) is the practical deadline to migrate. Sole traders should read this alongside UK Self-Assessment tax return filing and sole trader accountants.

HMRC-approved software in 2026

The list of HMRC-approved MTD software is long but the practical choices for SMEs come down to a handful:

Bridging software (HMRC-approved Excel-to-API tools like Avalara, Tax Optimiser, BTC Software) remains compliant but increasingly unnecessary. If you're still using a bridging tool in 2026, ask why.

The bottom line

MTD for VAT is now ordinary plumbing, but the failure modes are subtle. Take a fresh look at your VAT return process this quarter and verify three things: that no manual adjustment happens outside the accounting software; that partial-exemption methods (if relevant) match your actual supply mix; and that EU sales obligations are properly registered if you sell B2C across the channel.

If your VAT return process involves an Excel file that someone "tidies up" before submission, it's not MTD-compliant, even if the bridging tool says otherwise.

And start preparing for MTD for ITSA if you have sole-trader or landlord income above £50k. April 2026 sounds far away. It isn't.

Which VAT scheme should you be on?

Scheme choice changes the arithmetic more than software choice does, and it is checked far less often. The entry and exit thresholds below are set by HMRC and have been stable for years, so they are safe to memorise rather than look up each time.

The Flat Rate Scheme is the one that gets chosen badly. A limited cost trader pays a 16.5 per cent flat rate, which for most consultancies is worse than standard accounting once any real expenditure appears. HMRC sets out the mechanics in its Flat Rate Scheme guidance and in VAT Notice 733. We re-run the comparison annually for every client on it, because the answer changes the year you buy equipment.

What does a late VAT return actually cost?

Since January 2023 the penalty for filing late is points-based rather than a straight surcharge. Each late submission earns one point. The penalty lands when you hit the threshold for your filing frequency, and it lands again on every late submission after that.

• Monthly returns: penalty at 5 points.
• Quarterly returns: penalty at 4 points.
• Annual returns: penalty at 2 points.

The penalty is £200 each time. Points expire after a period of compliance, but only once you have filed everything outstanding, so a business two returns behind cannot start the clock by filing the current one alone. HMRC sets out the full mechanics under the VAT late submission penalty points regime.

Late payment is separate and escalates with time outstanding, with interest running alongside it. Filing on time and paying late is a materially cheaper mistake than the reverse, which is not obvious and matters most on a quarter where cash is tight. Both deadlines fall one calendar month and seven days after the period ends, as set out in the HMRC VAT deadline rules. A 31 March quarter end is therefore due on 7 May.

What we check before submitting a VAT return

Nine items, in this order, on every return we file. It takes about forty minutes on a clean quarter and it is the difference between a submission and a considered one.

1. The VAT control account reconciles to the return, to the penny, before anything is sent.
2. Bank feeds are complete to the last day of the period, with no unreconciled items older than 30 days.
3. Supplier invoices carry a VAT number where input tax is claimed. A receipt without one is not a VAT invoice.
4. Zero-rated, exempt and outside-the-scope items are separated rather than lumped together, because only two of the three belong in box 6.
5. Reverse charge entries appear in both the output and input boxes, which catches most imported-services errors.
6. Entertainment, personal use and blocked input tax such as most car purchases are stripped out.
7. Any adjustment is posted as a journal inside the accounting software, never as an edit downstream.
8. Prior-period errors are assessed against the correction threshold before deciding whether to adjust the return or notify HMRC separately.
9. The digital link chain from source record to submission is unbroken, per VAT Notice 700/22.

Worked example, illustrative rather than a real client. A UK agency with £480,000 of standard-rated sales and £96,000 of standard-rated costs in a quarter declares £96,000 of output tax and recovers £19,200, leaving £76,800 payable. Move £30,000 of those costs into a category where the supplier never issued a VAT invoice and the recoverable figure drops by £6,000. That is not a rounding issue; it is a quarter of the input tax claim, and it is the sort of thing a takeover review finds in the first hour.

Getting help with MTD VAT

We file MTD VAT returns as an HMRC-authorised agent through our MTD VAT filing service, for clients across the UK covered on accountants for UK SMEs. Most of that work runs in Xero through Xero Certified Advisor accountants, with FreeAgent accountants for sole traders and Sage 50 and Sage Business Cloud accountants where a legacy file makes more sense than a migration. Businesses several quarters behind start with catch-up bookkeeping rather than with a return. E-commerce sellers dealing with EU distance selling alongside UK VAT should read this with Shopify accountants and US sales tax nexus for online sellers alongside it.