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Demerging a group

Split your group cleanly, without an unexpected tax bill.

Groups grow. A trading company picks up a property, a second business, an investment portfolio or a new set of shareholders. There often comes a point when it makes sense to separate them again. A demerger divides the group so each business or asset ends up where it belongs, and with HMRC clearance it can usually be done without immediate tax.

Why groups split

Shareholders going separate ways

Two founders or two branches of a family want to run different businesses. A partition demerger gives each their own company, with no cross-shareholdings.

Separating property

The freehold, or a portfolio of let property, moves out from under the trade, so it is protected from trading risk and owned side by side.

Preparing a sale

A buyer wants the trade, not the property or the cash. Demerging those first leaves a clean trading group to sell.

Succession

Different children will run different parts of the business, or the next generation takes the trade while the parents keep the property.

How it often looks

Before the demerger, one holding company owns the trading company and the property or investment company. Afterwards, the same shareholders own two holding companies side by side: HoldCo 1 with the trade and HoldCo 2 with the property or investments. Each can then be run, financed, sold or passed on separately.

The structure is only half the answer. The other half is choosing the route, ordering the steps and getting HMRC's confirmation in advance, because the reliefs that make a demerger tax-neutral all carry anti-avoidance rules. Since 26 November 2025, Finance Act 2026 has replaced the old bona fide commercial reasons test for share exchanges and reconstructions with a main purpose test: if a main purpose of the arrangements is to reduce or avoid tax, HMRC can adjust or switch off the relief.

BEFOREShareholdersHoldCo LtdTradeCoPropCoAFTERShareholdersown both groups directlyHoldCo 1the tradeHoldCo 2the propertyNEWTradeCoPropCo
Demerging a group. A group is split so that the shareholders own two separate companies side by side: one holding the trade, the other the property or investments. Done properly, with HMRC clearances, the split can be free of capital gains tax and income tax, leaving the trade ready to sell or pass on and the assets kept apart. Holding company Trading company Property company

The three routes in outline

RouteWhat happensTypical useWatch for
Statutory demergerA company distributes shares in a trading subsidiary, or transfers a trade to a new company that issues shares to the shareholders (CTA 2010 Part 23 Chapter 5)Splitting two trading businesses that will each carry onTrading only; no planned sale, cessation or change of control; chargeable payments within 5 years
Capital reduction demergerThe company reduces its share capital, supported by a directors' solvency statement, and transfers a business or subsidiary to a new company owned by the shareholdersSeparating property or investments; a later sale of one sideCompany law steps and timings; reconstruction reliefs now under a main purpose test
Liquidation demergerIn a members' voluntary liquidation, the liquidator transfers businesses to new companies that issue shares to the members (Insolvency Act 1986 s110)Where a reduction isn't practical, or a complex division between shareholdersDeclaration of solvency; cost and timetable of a liquidation

For the shareholders, each route is designed so that their new shares stand in the shoes of the old ones, with no disposal for capital gains tax. For the companies, transfers between them are normally at no gain and no loss. Our sister site Demerger Tax (opens in a new tab) explains every route in depth: the statutory demerger (opens in a new tab), the capital reduction demerger (opens in a new tab), the liquidation demerger (opens in a new tab) and the partition demerger (opens in a new tab) for shareholders going separate ways.

Using a new holding company first

Many demergers start with a share-for-share exchange that inserts a new holding company above the existing group. There are good practical reasons for this:

  • The split happens at the top. The trading company itself, with its contracts, employees, licences and lenders, is left alone.
  • The right company has the share capital. A capital reduction needs share capital to reduce, and a new holding company can be created with a share structure designed for the split.
  • It sets up the future structure. Once the demerger is done, each side can have its own holding company, ready to protect cash or acquire a second business.

The share exchange is normally cleared under section 138 TCGA 1992 and section 701 ITA 2007 alongside the demerger, and needs its own stamp duty claim. Our page on inserting a holding company explains the steps in more detail. Where a sale is in view, read our page on pre-sale restructuring, because the timing of the holding company and the demerger affects which reliefs survive.

Clearances

Clearance is not compulsory, but it is normally obtained before any step is taken. One application to HMRC's Clearance and Counteraction Team can cover all of these, and HMRC respond within 30 days of a complete application.

ClearanceWhat it confirms
CTA 2010 s1091A statutory demerger distribution will be an exempt distribution
TCGA 1992 s138The share exchange or reconstruction will be effected without arrangements caught by the main purpose test in s137
TCGA 1992 s139(5)A transfer of a business between companies in a reconstruction isn't caught by the new main purpose test in s139
ITA 2007 s701The transactions in securities rules won't be used to tax the shareholders on income

A good application explains the commercial background, the steps in order with diagrams, the shareholdings before and after, and why the group is splitting. Our record: 100% of HMRC clearances obtained (50+ applications). Our page on HMRC clearances and the clearance timeline planner show how this fits together.

Stamp duty and SDLT

The taxes on transfers are where demergers most often go wrong, because the stamp duty and SDLT reliefs still use a bona fide commercial reasons test and have their own clawback rules.

  • Stamp duty on shares. Share exchanges and transfers to new companies can be relieved under sections 75 and 77 of the Finance Act 1986, but both need HMRC adjudication. Where a demerger splits shareholders so their holdings no longer mirror each other, section 75 relief may not be available. A dividend declared directly in shares normally has no consideration and so no stamp duty.
  • SDLT group relief clawback. If land moved between group companies using group relief in the last three years and the company holding it leaves the group, the relief is normally withdrawn on market value.
  • New land transfers. Moving property between companies in a demerger can be chargeable, with market value rules for connected companies. Reconstruction and acquisition reliefs may help, but have conditions and their own three-year clawback.
  • Degrouping charges. A company leaving a capital gains group within six years of an intra-group transfer can face a gain, except where it leaves only because of a statutory demerger distribution.

In Scotland and Wales, LBTT and LTT have their own versions of these reliefs. See our page on stamp duty on a holding company for the share exchange side, and Demerger Tax's guide to demerger stamp duty and SDLT (opens in a new tab) for the detail on each route.

How we help

We look at the whole group before recommending a route: who owns what, how the property got there, what each shareholder wants and what might happen next. Advice is led personally by Omar Aswat, a Chartered Tax Adviser (CTA), and we work with your accountant and corporate lawyer to implement it.

Route and structure

We compare the routes for your group and recommend the one that fits your aims and timetable.

Tax modelling

Capital gains tax, stamp duty, SDLT, degrouping and inheritance tax, modelled for each company and shareholder.

HMRC clearance

We prepare the combined application and deal with HMRC's questions before anything is signed.

FAQs

Frequently asked questions

What does it mean to demerge a group of companies?

Demerging a group means splitting it so that businesses or assets which sat under one holding company end up in separate ownership chains. Often the same shareholders own two holding companies side by side, one with the trade and one with property or investments. In other cases different shareholders each take a different business. Done properly, with HMRC clearance, a demerger can usually be carried out without immediate tax for the shareholders or the companies.

Why would I demerge my group rather than just sell part of it?

A sale turns part of the group into cash for someone else. A demerger keeps everything in the family or the existing shareholder group, but in separate structures. It suits shareholders who want to go their own way, owners who want to keep the property while preparing the trade for sale, and families planning succession. It is a reorganisation of ownership, not a disposal to a third party, which is why tax reliefs are available.

Can shareholders go separate ways through a group demerger?

Yes. Where two shareholders or families want to run different businesses within the group, a partition demerger can give each of them one business outright, with no cross-shareholdings left behind. The shares are usually reorganised into separate classes first, so each class can receive shares in its own new company. Valuations matter, because each side needs to receive a fair share of the value, and HMRC will expect the commercial reasons to be explained in the clearance application.

Can I demerge the property company out of my trading group?

Yes, this is one of the most common reasons to demerge. The property company is moved out from under the trading holding company, so the same shareholders own it directly or through a second holding company. A statutory demerger usually won't work for property, because those rules are designed for trading activities, so a capital reduction demerger or a liquidation demerger is normally used. SDLT on any earlier intra-group property transfers needs checking first.

Which demerger route is right for my group?

It depends on what is being separated and why. A statutory demerger suits splitting trading businesses where no sale or change of control is planned. A capital reduction demerger is often used to separate property or investments, or where a sale of one side may follow. A liquidation demerger under section 110 of the Insolvency Act 1986 is used where the other routes don't suit. Each has conditions, anti-avoidance rules and company law steps.

What is a statutory demerger and what are its limits?

A statutory demerger uses rules in the Corporation Tax Act 2010 so that a company can distribute shares in a trading subsidiary, or transfer a trade to a new company, without the shareholders being taxed on an income distribution. The conditions are strict: the companies must be trading, the distribution must benefit the trading activities, and there must be no plan for a sale, a cessation or a change of control afterwards. Payments within five years can also be taxed.

How does a capital reduction demerger work in outline?

The company reduces its share capital using a special resolution supported by the directors' solvency statement, and uses the reduction to transfer a business or subsidiary to a new company, which issues shares to the shareholders. For shareholders, the reconstruction rules normally mean there is no disposal for capital gains tax. For the company, the transfer can be at no gain and no loss. Since 26 November 2025 both reliefs are subject to a main purpose test.

When is a section 110 liquidation demerger used?

A section 110 demerger puts the company into a members' voluntary liquidation. The liquidator transfers its businesses or assets to new companies, which issue shares directly to the shareholders. It is often used where a capital reduction isn't practical, or where several businesses are being divided between different shareholders. The directors must make a statutory declaration of solvency, and the costs and timetable of a liquidation are usually greater than other routes.

Why insert a new holding company before demerging a group?

A new holding company is often inserted at the top first, through a share-for-share exchange. This puts the share capital and reserves needed for the split in the right company, lets the group be divided cleanly at the top, and avoids disturbing the trading company itself. The share exchange has its own clearance and stamp duty points, and the order of the steps, and how they are described to HMRC, needs care under the new main purpose test.

Which HMRC clearances do I need to demerge a group?

It depends on the route. A statutory demerger normally needs clearance under section 1091 CTA 2010. Reconstructions rely on section 138 TCGA 1992 for the shareholders and section 139 for transfers of a business between companies. Section 701 ITA 2007 deals with transactions in securities for income tax. These can all go in one application to HMRC's Clearance and Counteraction Team, which responds within 30 days of a complete application.

How many months should we allow for a group demerger?

A straightforward demerger often takes a few months. The planning and valuations come first, then the clearance application, which HMRC aim to answer within 30 days, or within 30 days of answering any further questions. After that come the legal steps, the stamp duty adjudication and the filings. Where property, lenders, landlords or third-party consents are involved, the timetable is usually set by those rather than by HMRC.

Is stamp duty payable when a group is demerged?

Sometimes. Share exchanges and transfers of shares to new companies can qualify for stamp duty reliefs under sections 75 and 77 of the Finance Act 1986, which still require bona fide commercial reasons and need HMRC adjudication. Where a demerger splits shareholders so that holdings no longer mirror each other, section 75 relief may not be available. A dividend declared directly in shares normally carries no stamp duty because there is no consideration.

Will a demerger trigger SDLT on the group's property?

It can. If property was moved between group companies using SDLT group relief in the last three years, and the company holding it leaves the group in the demerger, the relief is normally clawed back on the property's market value. New transfers of land can also be charged, with reconstruction or acquisition relief available in some cases. In Scotland and Wales the equivalent reliefs sit in LBTT and LTT. The property history should be mapped before choosing a route.

Will moving companies out of our group in a demerger trigger a degrouping charge?

A degrouping charge arises when a company leaves a capital gains group within six years of receiving an asset from another group company at no gain and no loss. It treats the asset as sold and reacquired at market value at the time of the earlier transfer. It does not apply where a company leaves a group only because of a statutory demerger distribution, but other routes need checking, especially where property has moved within the group.

Do shareholders pay capital gains tax when a group is demerged?

Not usually, where the conditions are met. The reorganisation and reconstruction rules treat the shareholders' new shares as standing in the shoes of their old ones, so there is no disposal on the demerger itself. Their base cost is split between the companies, for unquoted shares by reference to market values when they later sell. A gain is taxed only when the shares are eventually sold, which is why the structure afterwards matters.

Can we sell one side of the group after a demerger?

Possibly, but timing and route are critical. A statutory demerger isn't available where there are arrangements for a sale or change of control afterwards. A capital reduction or liquidation demerger can be used where a later sale is planned, but every step must be explained to HMRC. HMRC's guidance says a restructure so a later sale qualifies for a relief is not caught where the conditions are then met throughout the relevant period.

Will we keep inheritance tax Business Relief on our shares after the group is demerged?

It can help or hinder. The two-year ownership period normally carries over where new shares are treated as the same as the old ones, so the shareholders don't start again. But each company must now qualify on its own: a trading company's shares can qualify, while a company mainly holding property or investments usually won't. Separating the two can make the trading shares' position cleaner, and it is worth modelling before the split.

Where can I find more detail on demerger routes and tax?

Our sister site Demerger Tax, at demergertax.co.uk, covers every demerger route in depth, including partition demergers, capital reduction demergers, liquidation demergers, statutory demergers and the tax on each. It is run by the same team, so the advice is joined up whether your demerger starts with a holding company question or a wider restructure. We can look at your group and tell you which route is likely to fit.

Thinking about splitting your group?

Tell us what you'd like to separate and why. The first call is free, and we respond the same working day.

Or write to taxadvisory@aswatax.co.uk

Last reviewed 7 October 2026
Chartered Tax Adviser
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