Is your VAT control system strong enough?

by Aitch, posted in Value Added Tax

A strong VAT control system should clearly identify who is responsible for VAT, document the processes involved and regularly check that controls are working. HMRC also recommends keeping procedures up to date when the business, its systems or the VAT rules change.

Businesses should also review how VAT data moves through their systems. This includes checking tax codes, customer and supplier information, VAT reporting and the use of manual adjustments. For larger businesses, HMRC recommends a VAT risk register to record risks, controls and how their effectiveness is tested.

It is also important to check that controls are working as intended. This could include reviewing a sample of transactions, checking VAT calculations and reconciliations, and investigating any unusual or unexpected results. Any errors or weaknesses identified should be recorded and followed up to reduce the risk of the same problem happening again.

The guidance also covers Making Tax Digital, including ensuring that VAT records are complete and accurate and that digital links between systems work correctly.

While the guidance is aimed particularly at larger and more complex businesses, it provides useful points for any VAT-registered business to consider when reviewing their VAT control system.
 

Source:HM Revenue & Customs | 31-08-2026
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Aitch
I'm Aitch, the Founder and CEO of CIGMA Accounting Ltd. As a Chartered Management Accountant and as a CIMA member, I've spent more than 16 years helping businesses, entrepreneurs, landlords, and individuals with tax planning, accounting, and HMRC compliance. As a chartered accountant in London, I'm passionate about making complex tax matters easier to understand and helping clients make confident financial decisions. Over the years, I've advised start-ups, SMEs, established companies, and high-net-worth individuals across a wide range of tax and accounting matters. My expertise includes Corporation Tax, Self-Assessment, Capital Gains Tax, Inheritance Tax planning, R&D tax relief, capital allowances, international tax, and resolving complex HMRC compliance issues. Whether clients need a business accountant, tax accountant, or strategic tax advisor, my focus is always on delivering practical advice that creates long-term value. One of my specialist areas is Making Tax Digital (MTD). I've worked extensively with businesses preparing HMRC's digital reporting requirements, helping them move to cloud accounting, improve financial processes, and adopt technology that makes compliance more efficient. I regularly speak at Making Tax Digital roadshows, industry events, and educational sessions in collaboration with Zoho Books, sharing practical insights into digital accounting, tax legislation, and the future of the profession. Many business owners looking for the best accounting firm in London are not simply searching for an accountant they're looking for trusted advice, responsive support, and long-term value. That's the approach I've taken in building CIGMA Accounting. My team and I work closely with businesses across London and the UK, providing accounting services, tax advisory, bookkeeping, payroll, VAT, company accounts, and strategic tax planning tailored to each client's goals. Through this website, I share practical guidance on UK taxation, Making Tax Digital, HMRC updates, Corporation Tax, Self-Assessment, and business finance. My aim is to provide reliable, straightforward information that helps business owners understand changing regulations, reduce compliance risks, and make informed financial decisions with confidence.
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