Insight · Property tax

Property partnership incorporation: separate the CGT and SDLT tests before transferring.

Calling jointly owned property a partnership does not decide the tax result. The CGT and SDLT provisions have different conditions, evidence and calculations, and both must be tested before any legal transfer.

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1. Define the commercial objective and the actual arrangement

Start with why ownership is being changed: reinvestment, succession, borrowing, administration or a different long-term business model. Then document who owns the properties, who performs the work, how profits and decisions are shared, and what the historic accounts and agreements show.

A tax analysis should describe the arrangement that genuinely existed. A new partnership deed or tax-return label cannot, by itself, rewrite years of co-ownership.

2. Test the CGT business and transfer conditions

Incorporation Relief can defer gains where a business is transferred as a going concern with all its assets, other than cash if excluded, to a company in exchange wholly or partly for shares. Property letting is not automatically a business for this purpose.

Review the scale, continuity and organisation of activity, what the owners actually do, and the degree to which agents carry out the work. There is no single statutory hours test that guarantees the result.

Current filing point: HMRC's manual states that a claim is required for transfers on or after 6 April 2026. The claim mechanism and deadline should form part of the completion checklist.

3. Run the SDLT analysis separately

CGT Incorporation Relief does not remove SDLT. A transfer to a connected company can be charged by reference to market value or relevant debt even where little cash changes hands.

The partnership provisions use their own definitions and formulae. Establish whether a genuine partnership exists, identify the partners and relevant ownership proportions, and model the statutory calculation. Avoid beginning with a desired SDLT number and constructing the facts around it.

4. Build one contemporaneous evidence file

  • Ownership records, tenancy arrangements and historic accounts.
  • Partnership agreement, bank records, profit-sharing and decision evidence.
  • Owner activity logs, agent responsibilities and correspondence.
  • Independent valuations and a schedule for every property and liability.
  • Board, share, legal, accounting and tax documents that describe the same transfer.

Contradictions between the legal completion statement, accounts and relief computation create unnecessary risk.

5. Make finance and legal completion part of the tax model

Obtain lender consent and company borrowing terms before treating a plan as implementable. Check early repayment charges, personal guarantees, security, loan-to-value limits and whether the debt will actually move.

Coordinate the solicitor, lender, valuer and tax adviser around one step plan. The transfer date controls valuations, claims and reporting, so documents signed at different times need deliberate treatment.

6. Compare incorporation with doing less

Model at least three routes: retain the current properties personally, place only future acquisitions in a company, or transfer the established business. Compare transfer taxes, refinancing, annual cash retention, extraction, future sales and succession.

The best route may be the one with fewer irreversible steps. A long-term company benefit does not automatically outweigh an immediate CGT, SDLT or finance cost.

Official sources and further reading

These primary sources support the framework above. Check the current version before acting because tax law and HMRC guidance can change.

The UA Tax view

A structure or extraction route is only as strong as its evidence and implementation.

  1. 01
    Establish the legal and commercial facts before choosing a tax provision.
  2. 02
    Model cash and tax over the full period, including how the arrangement ends.
  3. 03
    Make uncertainty and assumptions visible in the recommendation.
  4. 04
    Align legal documents, accounts, filings and real-world conduct.

Helpful detail

Frequently asked questions

Does joint ownership create a partnership?

No. Co-ownership alone is not conclusive. The parties' conduct, business relationship, profit sharing, records and legal evidence must be considered.

Does Incorporation Relief remove SDLT?

No. CGT Incorporation Relief and the SDLT partnership provisions are separate regimes with different conditions and computations.

Is property letting always a business for Incorporation Relief?

No. The scale, continuity and nature of the owners' activities must be assessed on the facts; there is no single statutory hours test.

What changed from 6 April 2026?

For transfers on or after 6 April 2026, HMRC states that Incorporation Relief must be claimed. The filing route and deadline should be checked for the transaction.

Should the company be formed before lender approval?

The implementation sequence should be coordinated with lenders and solicitors. Refinancing terms, security, guarantees and early repayment charges can change the commercial result.

Can historic records be recreated immediately before transfer?

Contemporaneous evidence is more persuasive than documents created to support a planned tax outcome. Records should reflect the arrangement that actually existed.

Apply the framework to your own facts before acting.

A focused consultation can test the commercial objective, identify the facts that change the tax result and define any further written or implementation work.