Incorporating a landlord portfolio is not simply a transfer of properties from personal ownership into a limited company. Each property is normally treated as transferred at market value for tax purposes, potentially creating Capital Gains Tax and Stamp Duty Land Tax consequences before the future Corporation Tax treatment or mortgage-interest position is considered.
Reliefs can substantially change that result, but they depend on the factual nature of the existing property activity, the assets transferred, the consideration received and, for SDLT purposes, whether a genuine partnership actually exists.
Incorporating a landlord portfolio and CGT incorporation relief
Section 162 incorporation relief can defer qualifying capital gains where a person transfers a business as a going concern to a company, transfers the whole of the business assets other than cash and receives shares in the company as consideration.
A property letting activity can constitute a business for incorporation relief, but property ownership does not automatically satisfy that condition.
HMRC’s meaning of business for incorporation relief reflects the Ramsay decision. Relevant factors include whether the activity is a serious undertaking, is actively pursued with continuity, has substance and is conducted on recognised business principles.
HMRC accepts that around 20 hours or more of personal activity each week will normally indicate a business for these purposes, but fewer hours do not automatically prevent relief. The complete level and nature of the landlord’s activities must still be considered.
Incorporating a landlord portfolio after 6 April 2026 requires a claim
There is an important current procedural change.
For transfers occurring on or after 6 April 2026, section 162 incorporation relief is no longer simply left to operate automatically. HMRC’s revised incorporation relief claim rules require a claim containing the information specified by HMRC.
The transaction should therefore be valued and documented at the time of incorporation rather than assuming the relief can be reconstructed casually when the tax return is filed.
Where the company gives shares plus cash or credits a substantial amount to a director’s loan account as consideration, relief can be restricted because only the proportion attributable to share consideration is rolled into the shares.
Business liabilities assumed by the company require separate analysis. HMRC’s concession can allow genuine business liabilities to be ignored as additional consideration for section 162 purposes, but personal liabilities do not receive the same treatment.
SDLT depends on whether there is a genuine partnership
Capital Gains Tax incorporation relief and SDLT partnership treatment are separate tests.
Joint ownership of rental property does not itself establish a partnership. HMRC’s property guidance specifically states that joint letting will usually not amount to a partnership unless the facts demonstrate the level of business organisation required.
This distinction is critical because Schedule 15 partnership rules can substantially change the SDLT consideration when a genuine property partnership transfers property to a company connected with its partners.
Under the SDLT partnership transfer rules, chargeable consideration can be calculated by reference to a proportion of the property’s market value determined through the statutory “sum of the lower proportions” calculation.
It is therefore incorrect to say that incorporating a partnership property portfolio is automatically exempt from SDLT. The result depends on the existing partnership, ownership proportions, connected parties and the detailed Schedule 15 calculation.
Refinancing evidence should agree with the incorporation structure
Mortgage refinancing is often commercially necessary because the existing personal borrowing cannot simply remain attached to property transferred into a company.
The refinancing documents can also become important evidence of what transaction actually occurred.
Lender redemption statements, company mortgage offers, completion statements and loan-account entries should reconcile with the transfer agreement. Where old mortgages are repaid and new company borrowing is raised, the records should distinguish the refinancing from cash or other consideration given to the landlords.
For SDLT transactions falling within the special partnership provisions, HMRC’s guidance confirms that the statutory partnership calculation can determine chargeable consideration by reference to market value proportions rather than simply the actual cash consideration or associated debt.
For CGT incorporation relief, however, the treatment of liabilities and any director’s loan balance still requires separate consideration.
Historic partnership evidence cannot be manufactured at incorporation
A partnership deed signed shortly before incorporation is not conclusive evidence that the landlords had been carrying on a partnership business for years.
The existing evidence should show how the property operation actually functioned: partnership accounts and returns where appropriate, joint business records, decision-making, bank arrangements, responsibilities between partners and the sharing of business profits and losses.
Retrospectively describing ordinary co-ownership as a partnership purely to obtain an SDLT result creates significant enquiry risk.
The entire transaction should therefore be mapped before properties are transferred. The ongoing company position can then be reflected through the appropriate landlord tax planning and company compliance arrangements. Where incorporation relief, partnership SDLT rules, mortgages and shareholder consideration interact, specialist tax advice should address the transaction before exchange or refinancing rather than after completion.
Disclaimer: This article is provided for general guidance only and does not constitute personal tax, legal or financial advice. The correct tax treatment depends on the specific facts, applicable legislation and HMRC practice at the relevant time. You should contact us for advice tailored to your circumstances before taking or refraining from any action.
