Incorporating a Jointly Owned Rental Portfolio: Spouses, Partnerships and Who Claims Relief

Quick answer: Owning rental property jointly with a spouse or family member does not make you a partnership. Each owner is taxed on their own share of any gain, each must meet the business test and each makes their own incorporation relief claim. The Stamp Duty Land Tax (SDLT) partnership route needs a genuine partnership, which is a matter of fact and evidence, not of how the title deeds read.

Why joint ownership changes the analysis

When one person owns a portfolio, incorporation is a single decision with a single set of numbers. When two or more people own it, three things change:

• the capital gains tax (CGT) position is worked out for each owner separately;
• the "is it a business" test has to be met by the people who claim relief;
• the SDLT position can turn on whether the owners are in a genuine partnership.

Each of these is easy to get wrong if you assume the owners are a single unit.

Joint ownership is not a partnership

Many landlords assume that because two people own property together and share the rent, they run a partnership. The law says otherwise. The Partnership Act 1890 provides that joint tenancy, tenancy in common or part ownership does not of itself create a partnership, even if the owners share the profits from the property.

A partnership needs a business carried on in common with a view to profit. That looks at how you run the portfolio:

• do you both take part in managing it, or does one of you do the work?
• is there a written agreement, a shared bank account and shared accounts?
• are you both involved in decisions on tenants, repairs, borrowing and purchases?
• how have you reported the income for tax over the years?

HMRC looks at the whole picture, including how past tax returns were filed. A couple who each report half the rent on their tax returns and let through an agent will usually not be a partnership, however long they have owned the property. Our property portfolio incorporation service page covers the legal test in more detail.

Spouses and civil partners

For married couples and civil partners, several rules are specific.

• Transfers between you. A transfer of an asset between spouses or civil partners who live together is normally made on a no gain, no loss basis for CGT. That allows ownership to be re-balanced before incorporation without tax on the gain, but it is a gift and has other effects, such as who is taxed on the rent and who has which allowance. HMRC will look at whether the change is genuine.
• Who is taxed on rent. For jointly held property, spouses are generally taxed on the income equally unless they make a declaration of different beneficial shares. After incorporation, the position changes, because the company pays tax and the shareholders are taxed on dividends according to their shares.
• Dividends and shares. Splitting shares between spouses lets each use a personal allowance, the £500 dividend allowance and lower bands. HMRC can challenge arrangements where the shares do not carry real rights, so the share structure should reflect real ownership.
• Business test. One spouse working in the business does not automatically mean the other has a business too. It is worth considering who has actually carried out the activity before the move.

Who claims incorporation relief

Incorporation relief under section 162 of the Taxation of Chargeable Gains Act 1992 defers the gain when a business is transferred to a company in return for shares. From 6 April 2026 the relief has to be claimed. It is not automatic.

Capital gains are charged on individuals, not on a joint pot. So each owner who wants relief makes their own claim, based on their own share of the gain and the shares they receive. Where a partnership incorporates, the claims should be consistent with each other, with the partnership's records and with the company's share register.

Each claimant must also meet the business test. A person who owns a share of the property but plays no real part in running it may not be treated as carrying on a business. Then that owner's share of the gain may be taxable now, even if their spouse qualifies.

Example: A husband and wife own six flats equally, worth £1.2m, bought for £600,000 in total. The wife manages the portfolio full time. The husband has a full-time job and takes no part in managing it. The wife can show she carries on a letting business on her half. The husband may not. If the husband's half cannot get relief, his gain of £300,000 may be charged to CGT on transfer, at 24% after the £3,000 annual exempt amount, which is about £71,000. Rebalancing ownership before the move, if it is genuine, might change the position. These figures are hypothetical and need individual advice.

The SDLT partnership route

SDLT is often the biggest cash cost of incorporating. Where a company buys property from someone connected with it, SDLT is normally worked out on at least market value. For a company buying residential property in England, the rates carry a 5 percentage point surcharge, and a flat 17% applies to a single dwelling over £500,000 unless a relief for a property rental business applies.

If the property is held in a genuine partnership, a transfer out of the partnership to a company connected with the partners can be charged on a reduced basis. The rules are in Schedule 15 to the Finance Act 2003. In outline, the partners' existing share of the property reduces the chargeable consideration.

It is not a general solution for joint owners, for these reasons.

1. It needs a real partnership. Joint ownership alone does not qualify. Evidence from before the decision to incorporate is key.
2. SDLT history matters. Unless SDLT or stamp duty was paid when the property went into the partnership, a partner's share can be treated as nil.
3. Recent transfers into the partnership. Withdrawing capital, repaying a partner's loan or a partner leaving within three years of a property transfer in can be a chargeable event.
4. Anti-avoidance. HMRC applies the general SDLT anti-avoidance rule (section 75A) to pre-arranged steps that produce less tax than a direct purchase.

HMRC's April 2025 guidance (Spotlight 69) also says that putting a portfolio into an LLP, placing the LLP into members' voluntary liquidation and selling to your own company does not work for CGT or SDLT. We would not recommend it.

Practical steps for joint owners

1. Confirm legal ownership. Check the title deeds, any declaration of trust and how the mortgage is held.
2. Test the business question for each owner. Gather diaries, emails, invoices and agent records.
3. Review past tax returns. They show how the income has been treated.
4. Decide on the share structure, including voting rights, dividends and what happens if a couple separates.
5. Plan the mortgage move. Lenders will treat each owner as a borrower. See our article on incorporating a portfolio with mortgages.
6. Model the numbers for each person. CGT, SDLT, relief and the annual saving will differ between owners.
7. Make each relief claim, and file the SDLT return within 14 days of completion.

When joint ownership says "wait"

If one owner cannot meet the business test, or the SDLT cost cannot be justified, other options include leaving the portfolio where it is and buying new property in a company, or reorganising ownership first. Our article on whether incorporating is still worth it in 2026/27 compares them.

Talk to us about Property Portfolio Incorporation

• Incorporation relief under section 162 can defer CGT, but only if the rental activity is a business
• From 6 April 2026 the relief must be claimed, it is no longer automatic
• SDLT is usually charged on market value, unless a partnership route properly applies

See how we help or book a free 20-minute call.

FAQs

Does owning rental property with my spouse make us a partnership?

No. Owning property jointly, even if you share the rent, does not of itself make you a partnership. A partnership needs a business carried on in common with a view to profit. Whether you have one depends on the facts, including how you manage the portfolio and report the income.

Do we each need to claim incorporation relief?

Yes. Capital gains are charged on each owner separately, so each person who qualifies makes their own claim, based on their share of the gain and the shares they receive. From 6 April 2026 the claim must be made. Each claimant must also meet the business test.

Can we avoid SDLT by calling ourselves a partnership?

No. The partnership SDLT rules need a genuine partnership that meets the legal definition. HMRC examines the facts, and can apply an anti-avoidance rule to pre-arranged steps. Declaring a partnership without the substance will not work and can lead to penalties.

Can I transfer my share to my spouse before incorporating?

Transfers between spouses living together are generally made on a no gain, no loss basis for CGT, so ownership can often be rebalanced. It is a gift, and HMRC looks at whether the arrangement is genuine and what the effect is. Take advice before you do it.

What happens to our shares if we separate after incorporating?

Shares in the company are an asset that can be divided or valued in a separation. The articles of association and a shareholders' agreement can set out what happens, such as buy-out rights. Legal advice is essential. We design the tax side so that it fits whatever you agree.

Sources

• Section 162 TCGA 1992: https://www.legislation.gov.uk/ukpga/1992/12/section/162
• Incorporation relief claims from 6 April 2026: https://www.gov.uk/government/publications/capital-gains-tax-incorporation-relief-claims/capital-gains-tax-incorporation-relief-claims-process
• HMRC Capital Gains Manual CG65715 (business test, Ramsay, 20 hours): https://www.gov.uk/hmrc-internal-manuals/capital-gains-manual/cg65715
• Non-statutory clearance service: https://www.gov.uk/guidance/non-statutory-clearance-service-guidance
• FA 2003 section 53 (connected company, market value): https://www.legislation.gov.uk/ukpga/2003/14/section/53
• FA 2003 Schedule 15, paragraphs 17A and 21: https://www.legislation.gov.uk/ukpga/2003/14/schedule/15/paragraph/17A and https://www.legislation.gov.uk/ukpga/2003/14/schedule/15/paragraph/21
• SDLT and corporate bodies: https://www.gov.uk/guidance/stamp-duty-land-tax-corporate-bodies
• Spotlight 69 (LLP liquidation schemes): https://www.gov.uk/guidance/liquidation-of-a-limited-liability-partnership-used-to-avoid-capital-gains-tax-spotlight-69
• Capital gains tax rates: https://www.gov.uk/capital-gains-tax/rates
• Dividend tax: https://www.gov.uk/tax-on-dividends

Next step

If you own property with a spouse or family member, we will test the business question for each of you, check the SDLT position and model the numbers owner by owner. We offer a free 20-minute call to start. Book a call.