MTD VAT software: what HMRC requires vs what businesses actually need

Making Tax Digital for VAT was introduced as a straightforward UK government initiative – modernise tax, reduce errors, and improve the way businesses interact with HMRC. In practice, though, it has raised a fairly common question among accountants and VAT registered businesses alike:

What does HMRC actually require – and what do businesses genuinely need in order to remain compliant and operate efficiently? Those two things often overlap, but they’re not always identical.

Understanding the difference is key when choosing MTD VAT software that works not just in theory, but in day-to-day reality. Here’s a breakdown.

What HMRC requires under making tax digital for vat

First, the non-negotiables. HMRC’s making tax digital rules for VAT are prescriptive, and failing to meet them can create compliance risks for both businesses and their tax agents. Agents must use an agent services account to access Making Tax Digital services on behalf of clients, ensuring secure and authorised management of VAT data.

Digital record keeping is mandatory

VAT registered businesses must maintain digital records. These include:

• VAT registration number
• Taxable turnover
• VAT charged on sales (output tax)
• VAT on business purchases (input tax)
• Net value of each transaction
• Tax point and accounting period.

In short, VAT records must be kept electronically in a compatible digital format. Paper records or manual systems are no longer sufficient. HMRC expects businesses to maintain digital tax records using functional compatible software.

VAT returns must be submitted digitally

Businesses must submit VAT returns directly to HMRC systems using MTD compatible software. The old method of manually entering figures into the VAT portal is no longer allowed.

Whether businesses submit quarterly or follow specific VAT return periods, returns must be filed via HMRC’s application programming interface (API).

Digital links are essential

This is an area that often causes confusion. HMRC requires digital links between systems to ensure VAT data flows without manual intervention.

Using an API enabled spreadsheet is acceptable, but data transfers must be digital throughout. Manually copying, re-typing, or emailing figures between systems breaks the digital link and risks non-compliance.

Compatible software – HMRC doesn’t dictate the product

HMRC does not specify which tax digital software must be used. However, it must be:

• MTD compliant software
• API enabled
• Capable of maintaining digital records
• Able to submit VAT returns via HMRC’s API platform.

This is where bridging software, full accounting software, and integrated accounting tools all qualify – provided they meet HMRC’s technical requirements. While HMRC does not require all functions to be performed in the same software, using the same software for all digital record-keeping functions can simplify compliance and reduce errors.

So far, these are the rules. But do they reflect what businesses actually need to manage VAT effectively, and how does this compare to using dedicated MTD for VAT software designed around HMRC’s requirements?

What businesses actually need from MTD VAT software

Meeting HMRC’s requirements is essential – but compliance alone doesn’t run a business. In practice, VAT registered businesses need software that supports how they work day to day, not just how VAT returns are submitted.

So what tends to matter most?

Software that works for different business structures

A sole trader operating under self employment rules has very different needs from a limited company with multiple VAT return periods. Self employed individuals with gross income above certain thresholds will soon be subject to additional digital record-keeping requirements under Making Tax Digital. Add varying taxable turnover levels and the picture becomes more complex.

MTD VAT software should be able to support both sole traders and limited companies, with different accounting periods and changes in taxable turnover, all without forcing businesses into workarounds that complicate record keeping, much like modern Making Tax Digital software for small businesses is designed to do.

Support for VAT accounting schemes and complex VAT rules

Some businesses don’t operate under standard VAT rules, using the flat rate scheme setting. Some may also use partial exemption calculation or margin schemes, such as the Gold Special Accounting Scheme, where marginal VAT and marginal VAT charged are relevant.

For these businesses, accurate VAT calculations matter just as much as submission. Software needs to handle total output tax, input tax, irrecoverable VAT, and net value calculations correctly – and make those figures easy to review, which is where fully integrated MTD-compatible accounting software can be particularly valuable.

If VAT charged doesn’t look right, can the business or its accountant quickly see why?

Clear, reliable digital record keeping

Digital record keeping requirements go beyond VAT returns alone. Businesses need confidence that their digital tax records are complete, accurate, and stored in a compliant digital format.

That includes:

• Electronic records of sales and business purchases
• VAT data linked across systems
• Digital links that meet HMRC’s standards
• Clean business records ready for review or audit.

Good tax digital software makes record keeping simpler, not more fragmented, especially when you use Making Tax Digital software with flexible digital record-keeping options that can adapt to different ways of working.

Flexibility for corrections and adjustments

Errors happen. HMRC’s making tax digital rules allow for correction or error adjustment – but only if they’re handled properly. Businesses and accountants need software that supports adjustments within the correct accounting period, clear audit trails, and accurate updates to VAT records without breaking digital links – all without introducing risk at the point corrections are made, which is where a centralised MTD hub for accountants can streamline control and oversight.

Bridging software vs full accounting software

One of the most common questions is whether bridging software is enough – or whether full accounting software is the better long-term option.

When bridging software makes sense

Bridging software can be a suitable option when:

• Businesses already keep digital records in spreadsheets
• An API enabled spreadsheet is in use
• Digital links are properly maintained
• VAT calculations are straightforward

In these cases, bridging software simply connects existing records to HMRC’s application programming interface and allows businesses to submit VAT returns compliantly.

Where full accounting software adds value

Full accounting software goes further. It supports:

• Digital record keeping requirements from the outset
• VAT records, calculations, and submissions in one system
• Ongoing record keeping for tax returns beyond VAT
• Better visibility across income tax, corporation tax, and VAT

For many VAT registered businesses, this reduces complexity and provides a more robust approach to making tax digital for VAT, while also laying the groundwork for upcoming MTD for Income Tax software and quarterly updates.

Thinking beyond VAT

Although MTD for VAT is often the starting point, it’s rarely the end of the story. Making Tax Digital is also being rolled out for income tax (digital for income tax), with phased requirements for self-employed individuals and landlords.

Businesses also need to consider factors like income tax and self employment reporting, corporation tax, and long-term digital record keeping, alongside adjacent compliance areas such as AML checks and compliance software for accountants. Tax digital for income will require digital record-keeping and quarterly updates for those above certain thresholds starting from 2026.

Choosing MTD compatible software that only addresses VAT may solve today’s problem, but create tomorrow’s. A more sustainable approach is tax digital software that supports compliance now, while laying the groundwork for future digital tax requirements and is supported by practical Making Tax Digital resources and guides that help firms stay up to date. Retail sales data, such as daily gross takings, must also be recorded and transmitted digitally to ensure compliance with MTD requirements for retail businesses.

Bringing HMRC requirements and real-world needs together

Understanding the difference between what HMRC requires and what businesses actually need is essential when choosing MTD VAT software. Compliance matters – but so does clarity, flexibility, and confidence in the numbers.

Capium’s MTD compliant software is designed to support both. From maintaining digital records and handling complex VAT accounting schemes to submitting VAT returns through HMRC’s application programming interface, Capium helps accountants and businesses meet making tax digital requirements without unnecessary friction.