Artificial Separation and How HMRC Views Disaggregated Businesses

Artificial separation, often called disaggregation, is the practice of splitting what is really one business into two or more legal entities so that each part stays below the £90,000 VAT registration threshold. The attraction is obvious for businesses selling to private consumers who cannot recover VAT: keeping each entity unregistered means no 20 percent VAT charge on prices. HMRC treats genuine separation differently from artificial separation, and where it concludes the split is artificial it has a specific statutory power to treat the parts as a single taxable person. This sister piece sits within the UK VAT registration hub, which collects the registration timing and structuring guides in one place.

This article explains the legal test HMRC applies, the financial, economic and organisational links it looks for, how a direction notice works in practice, the leading case law, and how a genuinely separate structure differs from an artificial one. Closely related pieces in the same series cover the strict VAT exemption conditions for a transfer of a going concern and reclaiming pre-registration VAT on historical goods and services.

What artificial separation means

Artificial separation arises where a single economic activity is divided across multiple entities mainly to avoid VAT registration, rather than for genuine commercial reasons. A classic example is a pub where the bar trade runs through one entity and the food or accommodation trade through another, each kept below £90,000. Another is a hairdresser where the cutting service is one business and the products or chair rental another. The structures can be companies, sole traders, partnerships, or a mix, and family members are often used as the separate proprietors.

The point HMRC focuses on is substance over form. The legal entities can be entirely real and properly incorporated; what matters is whether, looked at in the round, they are carrying on one business that has been carved up to sit beneath the threshold. A split done for genuine commercial, regulatory or operational reasons is lawful even if it has the side effect of keeping entities unregistered.

The statutory power: Schedule 1 paragraph 1A VATA 1994

The anti-disaggregation power lives in paragraph 1A of Schedule 1 to the Value Added Tax Act 1994. It allows HMRC to make a direction that named persons are to be treated as a single taxable person carrying on the activities of a business described in the direction. Once a direction is made, the combined turnover of those persons is tested against the registration threshold, and where it is exceeded the single taxable person must register and account for VAT.

For HMRC to make a direction, it must be satisfied that the separation of activities is artificial, and that the persons making the separate supplies are bound by close financial, economic and organisational links. All three categories of link are relevant, and the more of them that are present, the stronger HMRC's position. The direction can only have effect from the date it is issued onward; it is not retrospective in the sense of reaching back before the direction, although registration from the direction date can itself be a significant liability.

The three links HMRC tests

The heart of any disaggregation enquiry is whether the entities share close financial, economic and organisational links. HMRC weighs these together rather than applying a single decisive test.

No single factor decides the question. A shared premises alone, with otherwise distinct businesses, is unlikely to support a direction. But shared premises plus shared staff plus a single till plus common branding plus customers who experience one seamless service will usually point firmly toward artificial separation.

How a direction notice works

Where HMRC concludes the links and artificiality tests are met, it issues a direction in writing naming the persons to be treated as one. From the date of the direction, those persons are a single taxable person and must register if their combined turnover exceeds the threshold. The direction names which person is the single taxable person responsible for the combined registration. The parties can appeal the direction to the First-tier Tribunal, where HMRC must justify the artificiality and the links.

The forward-looking nature of a direction

A direction takes effect prospectively, from issue. HMRC cannot use paragraph 1A to backdate a combined registration to before the direction. That said, if the arrangement also involved other failures, for example one entity that should have registered on its own turnover and did not, HMRC can pursue that separate failure through the ordinary late-registration and penalty rules. The disaggregation power and the ordinary registration rules operate alongside each other.

Leading case law

A body of tribunal and court decisions shapes how the links test is applied. The themes that recur across the case law are consistent and worth understanding before structuring any multi-entity arrangement.

• Tribunals look at the commercial reality experienced by customers, not just the paperwork. If customers see one business, that weighs heavily toward artificiality.
• Genuine independent ownership and control of each entity, with each able to survive on its own, supports a finding of genuine separation.
• Shared infrastructure (one till, one set of staff, one set of accounts) is frequently decisive in favour of HMRC.
• The motive behind the split matters: a split done for sound commercial or regulatory reasons can survive even where VAT is incidentally saved.
• The burden in an appeal is on HMRC to establish the links and artificiality, but in practice strong evidence of integration is hard to rebut.

Genuine separation versus artificial separation

There is nothing unlawful about operating genuinely separate businesses, even where the side effect is that each stays below the threshold. The distinction is about substance.

Practical risk factors that draw HMRC attention

Certain patterns make a disaggregation enquiry more likely. Several entities turning over an amount just below £90,000 each, with the same address, the same proprietors or family members, the same website and the same staff, is the textbook trigger. So is a sudden split that coincides with one business approaching the threshold. HMRC field officers reviewing local trades, hospitality and personal-care businesses are familiar with the pattern and look for it directly.

The cost if a direction is upheld

Once the combined entity is registered, it must charge VAT on its supplies from the effective date. For a consumer-facing business that did not build VAT into its prices, the 20 percent often comes out of margin rather than being passed on, because raising prices 20 percent overnight is rarely possible. On top of that, the combined entity carries the ongoing compliance cost of VAT returns and Making Tax Digital obligations.

Structuring multi-entity businesses safely

A business with genuine reasons for operating through more than one entity can reduce disaggregation risk by ensuring the entities really are separate in substance. That means independent bank accounts, separate staff and management, distinct customer relationships, arm's-length terms for any genuinely shared resources, and clear documentation of the commercial reason for the structure. The more each entity can stand on its own as a real business, the weaker any HMRC argument that the split is artificial.

Where a structure has been built mainly to stay below the threshold, the safer long-term position is usually to register voluntarily or on combined turnover and absorb the VAT, rather than carry the risk of a direction, back-dated registration of the entity that should have registered, and penalties. A specialist VAT accountant can review an existing structure against the links test and advise whether it is defensible.

What to do if HMRC opens a disaggregation enquiry

Key takeaways on artificial separation

The threshold is a real constraint for consumer-facing businesses, but splitting one business across entities to dodge it is risky. HMRC has a clear statutory power in Schedule 1 paragraph 1A, a settled financial, economic and organisational links test, and a direction mechanism that turns the parts into one taxable person from the direction date. Genuine separation is lawful and respected; artificial separation, where customers see one business carved up on paper, is not. The right structure is one that would still make sense if VAT did not exist.