Incorporating a UK property portfolio, and the cost of leaving MTD

The escape is real, and it is the smallest part of the decision

The arrival of Making Tax Digital for Income Tax has sent landlords looking for the exit, and the exit is genuine. The regime applies to individuals, sole traders and landlords, not to companies, so a rental portfolio held through a company falls outside the quarterly digital-reporting obligation that now binds an individual landlord over the threshold. Incorporate, and the quarterly updates go away.

That much is true, and it is where the marketed version of the story stops. The problem is that the reporting burden it removes is the least consequential thing about incorporating a property business. Moving property from personal ownership into a company is not an administrative reclassification. It is a disposal and an acquisition, and it triggers a set of tax charges, some of them immediate and large, that dwarf the cost of filing four updates a year. A landlord who incorporates to escape Making Tax Digital, and looks no further, can pay tens of thousands of pounds to avoid an afternoon of quarterly filing.

The decision to incorporate can still be right, for the right portfolio, run the right way and held for the right reasons. But it is a structural decision with its own tax bill, and Making Tax Digital should be the footnote to it, not the reason for it. This note sets out what the transfer actually costs, the relief that can defer part of it, and who it genuinely suits.

The transfer is a disposal, and capital gains tax comes first

Because a person and their own company are connected, transferring property into the company is treated as a disposal at market value, whatever is actually paid for it. The owner is taxed as though they had sold the property at its full value on the day of transfer, and a portfolio that has risen over years of ownership carries a corresponding gain. Residential property gains are taxed at up to 24%. On a portfolio with substantial pregnant gains, that charge alone can be the largest single number in the whole exercise.

Section 162 of the Taxation of Chargeable Gains Act 1992, incorporation relief, is the provision that can defer it. Where a business is transferred to a company as a going concern wholly or partly in exchange for shares, the gain is not taxed at the point of transfer but is rolled into the base cost of the shares the owner receives. For a property portfolio, the relief turns on one demanding question: is the letting a genuine business, or merely the passive holding of investments? The distinction was tested in Ramsay v HMRC, where sufficiently active and substantial management of a property let the taxpayer meet the business test. A handful of buy-to-lets run passively through an agent will struggle to qualify; a large portfolio actively managed as the owner's occupation is a different case.

Two further points matter in 2026. First, on recent guidance, for transfers completed on or after 6 April 2026 section 162 relief no longer applies automatically; each transferor must actively claim it on their Self Assessment return for the year of transfer, so the relief is now a claim to be made and evidenced, not a default. Second, refinancing the portfolio at the point of incorporation can reduce the relief, because drawing cash out on the way in is not consideration in shares. The relief defers the gain only to the extent the business is exchanged for shares.

Stamp duty is charged on market value, and section 162 does not touch it

The charge that surprises landlords most is stamp duty land tax, because it applies to the transfer into the company even though the owner is, in substance, moving property to themselves.

Under section 53 of the Finance Act 2003, a transfer of property to a connected company is charged to SDLT on the market value of the property, regardless of what the company actually pays. So even a transfer for no cash consideration is taxed as though the company had bought the property at full value. Worse, a company acquiring a dwelling pays the higher rates: the 5% additional-dwellings surcharge, and on any dwelling worth more than £500,000 the 17% flat rate that applies to corporate purchasers of residential property. SDLT on a mid-sized portfolio can run well into six figures.

The critical point is that incorporation relief does not relieve SDLT. Section 162 defers the capital gain; it does nothing for stamp duty. For most portfolios the SDLT on incorporation is the single largest immediate cost, it is payable in cash within weeks of the transfer, and there is no equivalent rollover. Attempts to avoid it through partnership or trust structures are precisely the arrangements that attract HMRC scrutiny, addressed below.

ATED, corporation tax, and the charge on getting the money out

Incorporation does not end with the transfer. A company that holds a dwelling worth more than £500,000 is within the Annual Tax on Enveloped Dwellings, an annual charge on companies that hold residential property. A property let commercially to unconnected tenants qualifies for relief from the charge, so a genuine buy-to-let company usually pays no ATED, but the relief has to be claimed on an ATED return filed every year, and a missed return is a penalty in its own right. The envelope brings an annual filing obligation whether or not tax is due.

Then there is the ongoing position. The company pays corporation tax on its rental profits. That can be efficient where the profit is retained and reinvested in more property, because the company keeps more after tax than a higher-rate individual would. But the moment the owner wants the money to live on, extracting it as a dividend is taxed again on the shareholder, at dividend rates up to 39.35%. Rent that would have been taxed once in the individual's hands is taxed twice through a company, once on the company and again on extraction. Incorporation therefore favours the landlord who is reinvesting and rolling up, and penalises the one who needs the income now.

Finance is the last practical cost. Personal buy-to-let mortgages generally cannot simply follow the property into the company; the portfolio has to be refinanced onto corporate or special-purpose-vehicle lending, which is often priced higher and carries arrangement costs, and, as noted, refinancing at the point of transfer can compromise the section 162 relief.

The marketed schemes, and why the 2026 tribunal did not bless them

Because these costs are real, a market has grown up promising to incorporate a portfolio while avoiding all three of stamp duty, capital gains tax, and refinancing, typically through declarations of trust and structured paper transactions. The 2026 First-tier Tribunal decision in the Property118 litigation is often cited as validating these arrangements. It does not, and the distinction matters.

The tribunal found that the particular arrangements were not notifiable under the Disclosure of Tax Avoidance Schemes rules. That is a procedural conclusion about disclosure obligations. It is not a ruling that the arrangements deliver their intended tax result, and independent commentary has been blunt that the decision changes very little about the underlying exposure. The tribunal itself noted that the ordinary tax consequences of incorporating a property business, the SDLT, the capital gains tax, the need to refinance, are exactly that: the ordinary consequences, not disadvantages a clever structure removes. A landlord relying on a marketed structure to escape all three, often while declaring a trust in breach of the mortgage terms, is taking on enquiry risk that can outlast and outcost the tax it was meant to save. The honest planning position is that incorporation carries these costs, and the question is whether the structure is worth them, not how to make them disappear.

The corridor point: a company abroad does not remove UK tax on UK property

For an internationally mobile owner the natural next thought is to hold the UK property through a UAE or other offshore company. It is important to be clear that this does not take the property out of UK tax.

Since 6 April 2020, non-resident corporate landlords have been within the charge to UK corporation tax on the profits of their UK property rental business, and within UK tax on gains from disposals of UK real estate. A UAE company that owns a UK dwelling pays UK corporation tax on the rent, is within the Annual Tax on Enveloped Dwellings in the same way as a UK company, and is taxed on the gain when it sells, the position examined in the note on selling UK property after moving to Dubai. The UK-UAE treaty does not exempt income or gains from UK-situated land. The corridor mechanics of holding UK or UAE property through a company are set out in the analyses of a UAE property SPV and non-resident landlord companies and the associated-company rules.

The value of a corridor holding structure, where it exists, is in succession, in consolidating a portfolio under one roof, in aligning the property with a wider family structure, and in future planning. It is not an escape from UK tax on UK property, and it should never be sold as one. For owners for whom a UK or corridor holding structure genuinely fits, our company setup service for UK residents covers the entity, the substance and the cross-border position together.

Who incorporation actually suits

Read against the costs, incorporation suits a particular profile and not the general run of landlords driven to it by Making Tax Digital.

• A genuine, actively managed property business, large enough to meet the section 162 business test, so that the capital gain can be deferred rather than crystallised.
• An owner who reinvests the rental profit into the portfolio rather than drawing it to live on, so that the corporation-tax-then-dividend double layer does not bite.
• A portfolio where the pregnant gain and the SDLT cost are proportionate to the long-term benefit, rather than a small holding where the transfer taxes exceed years of reporting savings.
• A structural reason beyond tax, such as succession planning, bringing in family shareholders, or consolidating ownership, which is where a company earns its keep.

For the landlord who simply wants to avoid quarterly filing, incorporation is almost always the wrong tool. The residence-page deferral and the exemptions that apply to Making Tax Digital are the place to start, not a six-figure transfer of the portfolio.

A company is outside Making Tax Digital. It is not outside tax. The landlord who incorporates to escape a quarterly update has bought a capital gains charge, a stamp duty bill, an annual ATED return, and a second layer of tax on the way out, to solve the smallest problem he had.

Frequently asked questions

Does incorporating my property portfolio take me out of Making Tax Digital?

Yes. Making Tax Digital for Income Tax applies to individuals, and a company is outside it, so property held through a company is not subject to the quarterly digital-reporting obligation that binds an individual landlord over the threshold. But removing that obligation is the least significant effect of incorporating, and the transfer itself triggers capital gains tax, stamp duty and ongoing charges that usually outweigh the reporting saving.

What tax do I pay when I transfer property into a company?

The transfer is a disposal at market value for capital gains tax, because you and your company are connected, so you are taxed as if you had sold at full value, at up to 24% on residential gains. Stamp duty land tax is also charged on the market value of the property. Section 162 incorporation relief can defer the capital gain in the right circumstances, but it does not relieve the stamp duty, which remains payable in cash.

What is section 162 incorporation relief and does it remove the tax?

Section 162 of the Taxation of Chargeable Gains Act 1992 defers the capital gain when a business is transferred to a company as a going concern in exchange for shares, rolling the gain into the base cost of the shares. It applies only where the letting is a genuine business, tested in Ramsay v HMRC, and for transfers on or after 6 April 2026 it must be claimed on the return rather than applying automatically. It defers the capital gain only; it does not remove stamp duty.

Do I pay stamp duty when moving my own property into my company?

Yes. Under section 53 of the Finance Act 2003, a transfer to a connected company is charged to stamp duty land tax on the market value of the property, even if the company pays nothing. A company acquiring a dwelling pays the higher rates, including the 5% additional-dwellings surcharge and the 17% flat rate on dwellings over £500,000. Incorporation relief does not apply to stamp duty, so it is often the largest single cost of incorporating.

Does a company holding residential property pay ATED?

A company that holds a dwelling worth more than £500,000 is within the Annual Tax on Enveloped Dwellings. A property let commercially to unconnected tenants qualifies for relief, so a genuine buy-to-let company usually pays no ATED charge, but it must claim the relief on an ATED return every year. Missing the annual return is itself penalised, so the envelope adds a filing obligation whether or not tax is due.

Is a UAE or offshore company a way to avoid UK tax on UK property?

No. Since 6 April 2020 non-resident corporate landlords are within UK corporation tax on their UK rental profits and within UK tax on gains from UK real estate, and the Annual Tax on Enveloped Dwellings applies to them as well. The UK-UAE treaty does not exempt income or gains from UK land. A corridor holding company can add value for succession and consolidation, but it does not take UK property out of UK tax.

Are the "avoid SDLT and CGT" incorporation schemes safe?

They carry real risk. Marketed structures that promise incorporation without stamp duty, capital gains tax or refinancing, often using declarations of trust, are the arrangements HMRC scrutinises most closely. The 2026 Property118 tribunal decision was a narrow ruling that the arrangements were not notifiable under the disclosure rules; it did not confirm the intended tax result, and the ordinary costs of incorporating remain. Relying on such a structure can invite enquiries that outlast the tax it was meant to save.

Should I incorporate my property portfolio because of Making Tax Digital?

Rarely on that basis alone. Incorporation suits a genuine, actively managed and reinvesting property business large enough to defer the gain under section 162 and to justify the stamp duty and ongoing costs, usually with a structural reason such as succession. For a landlord whose only goal is to avoid quarterly reporting, the exemptions and the residence-page deferral under Making Tax Digital are the right starting point, not a transfer of the whole portfolio.