Transferring property to a spouse is one of the most powerful tax-planning tools available to UK couples. Done properly, a transfer of property to a spouse can wipe out a Capital Gains Tax bill on a future sale, cut Income Tax on rental profits, and remove the property from Inheritance Tax exposure entirely. Done badly, it can trigger Stamp Duty on the mortgage and create problems with HMRC.

This guide explains exactly how to transfer property to your spouse tax efficiently under the rules in force for the 2025/26 tax year, including the SDLT changes from 1 April 2025, the Capital Gains Tax rates of 18% and 24% for residential property, and the new long-term resident test that replaced domicile for Inheritance Tax from 6 April 2025.

Quick summary

• Transfers between spouses or civil partners living together are made on a no gain, no loss basis, so no Capital Gains Tax is due at the point of transfer.
• Splitting ownership before sale lets a couple use two annual CGT exempt amounts of £3,000 in 2025/26 and shift gains into the basic rate band where possible.
• SDLT only applies if the receiving spouse takes on a share of an existing mortgage above £125,000.
• Lifetime and on-death transfers between long-term UK resident spouses are fully exempt from Inheritance Tax.
• For jointly owned rental property, HMRC Form 17 is the only way to override the default 50:50 income split.

What Does Transferring Property to a Spouse Mean?

A transfer of property to a spouse is the legal process of changing the registered ownership of a property so that the husband, wife, or civil partner becomes a sole or joint legal owner. In conveyancing terms this is usually called a Transfer of Equity.

The transfer can be a full transfer (one spouse becomes sole owner) or a partial transfer (the property moves into joint names). It can be a gift or it can include consideration, such as the receiving spouse taking on a share of the existing mortgage. The tax outcome depends on the structure, the consideration, and the type of property.

Property Ownership Types: Joint Tenants vs Tenants in Common

Before any transfer, the existing ownership structure must be checked, because it determines what tax planning is possible.

Joint tenants own the whole property together. On the death of one owner, the property passes automatically to the survivor outside the will under the right of survivorship. Joint tenants cannot hold unequal shares, and they cannot make a Form 17 declaration to split rental income unequally.

Tenants in common each own a defined share, equal or unequal. Each share can be left under a will, and Form 17 can be used to align rental income tax with the actual ownership split.

Most tax planning that involves a transfer of property to a spouse begins with severing the joint tenancy, a simple Land Registry process, so the couple becomes tenants in common. This is the foundation that lets a Deed of Trust record specific ownership shares and unlock the planning opportunities below.

Why Transfer Property to Your Spouse?

The three main reasons UK couples move property between themselves are tax efficiency, financial security, and estate planning.

Tax efficiency. Each spouse has their own personal allowance, basic rate band (£37,700 above the personal allowance in 2025/26), CGT annual exempt amount, and savings allowance. If a property is held by one spouse alone, only one set of allowances is used. Bring the other spouse onto the title and the couple unlocks a second set, often saving thousands of pounds a year on rental profits and tens of thousands on a future sale.

Security. A spouse on the title has a legal interest in the property, which matters for protection in the event of separation, illness, or death.

Estate planning. Transfers between long-term UK resident spouses are fully exempt from Inheritance Tax. Coupled with the Residence Nil-Rate Band, holding the family home jointly can shelter a significant estate from IHT.

Capital Gains Tax on Spousal Property Transfers

Capital Gains Tax is the area where careful planning produces the biggest savings.

The No Gain, No Loss Rule

Transfers of any asset, including UK property, between spouses or civil partners who are living together happen on a no gain, no loss basis under section 58 of the Taxation of Chargeable Gains Act 1992. This means:

• No CGT is payable at the point of transfer.
• The receiving spouse inherits the original base cost (the price the transferring spouse paid, plus allowable improvements).
• The latent gain is preserved and crystallises only on a later disposal to a third party.

The rule is automatic. No claim or election is needed.

Using Both Spouses’ CGT Allowances on a Sale

The CGT annual exempt amount is £3,000 per person for 2025/26 and remains £3,000 for 2026/27. CGT rates on residential property in 2025/26 are 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers.

By moving a share of the property into joint names (or adjusting the beneficial split via a Deed of Trust) before exchange of contracts, a couple can:

• Use two £3,000 annual exempt amounts (£6,000 in total).
• Tax part of the gain at 18% rather than 24% where the receiving spouse has unused basic rate band.
• Use any capital losses sitting with the other spouse.

On a £100,000 gain on a buy-to-let, the difference between one higher-rate owner paying 24% on £97,000 (after one £3,000 exemption) and a couple where one is a basic rate taxpayer can run into five figures of tax saved.

The 60-Day Reporting Rule

Any CGT due on a UK residential property disposal must be reported and paid through HMRC’s online property disposal service within 60 days of completion, even if the gain is also included on a Self Assessment return. Late filing carries automatic penalties.

Separation and Divorce

The no gain, no loss rule continues to apply for the three tax years after the year of separation, and indefinitely for transfers made under a formal court order or separation agreement, subject to specific conditions. This area is fact-specific and should not be navigated without advice.

Stamp Duty Land Tax on Spousal Transfers

SDLT is the tax that catches more spousal transfers than any other, almost always because of the mortgage.

When SDLT Applies

SDLT is charged on chargeable consideration, not on the value of the property. A pure gift of property to a spouse with no money and no mortgage attracts no SDLT.

The trap is that assuming a share of an existing mortgage counts as chargeable consideration for SDLT purposes. If one spouse adds the other to the title and the new joint owner becomes liable for half of a £400,000 mortgage, HMRC treats £200,000 as the chargeable consideration.

SDLT Thresholds from 1 April 2025

The temporary higher SDLT thresholds expired on 31 March 2025. From 1 April 2025, residential rates in England and Northern Ireland are:

• 0% on the first £125,000.
• 2% on £125,001 to £250,000.
• 5% on £250,001 to £925,000.
• 10% on £925,001 to £1,500,000.
• 12% above £1,500,000.

So if the chargeable consideration on a spousal transfer is £125,000 or less, no SDLT is due. Above that, the bands apply.

Reliefs for Spouses

Two important reliefs apply to spouse-to-spouse transfers:

• The 5% additional dwellings surcharge (in force from 31 October 2024) is not charged on transfers between spouses or civil partners, even where the receiving spouse already owns another property.
• Transfers made under a court order on divorce or dissolution are exempt from SDLT entirely.

Scotland has its own equivalent, Land and Buildings Transaction Tax (LBTT), and Wales has Land Transaction Tax (LTT), both with different rates and thresholds.

Inheritance Tax on Spousal Transfers

The Inheritance Tax rules changed substantially on 6 April 2025. The old domicile-based system has been replaced with a long-term residence test.

The Spouse Exemption

Lifetime and on-death transfers between spouses or civil partners are fully exempt from Inheritance Tax with no upper limit, provided both spouses are long-term UK residents. A long-term UK resident is someone who has been UK tax resident for at least 10 of the previous 20 tax years.

Where the recipient spouse is not a long-term UK resident, the spouse exemption is capped at the nil-rate band of £325,000. The non-LTR spouse can make an election to be treated as a long-term resident, which removes the cap but brings their worldwide estate into UK IHT scope. Specialist advice is essential in this scenario.

No Gift With Reservation Issue Between Spouses

A common point of confusion: the gift with reservation of benefit rules that catch gifts to children where the donor keeps using the asset do not create a problem on transfers between spouses, because the spouse exemption already covers the transfer. There is no need to pay rent to a spouse after gifting them a share of the family home.

Combining With the Residence Nil-Rate Band

Used alongside the £175,000 Residence Nil-Rate Band (where the home passes to direct descendants), tax-efficient ownership between spouses can shelter up to £1 million from IHT for a married couple, depending on circumstances.

Splitting Rental Income Between Spouses: Form 17

This is the area most generic guides miss, and it is central to tax-efficient property ownership between UK couples.

Where a residential property is held jointly by spouses or civil partners, HMRC’s default rule taxes rental income 50:50, regardless of the actual beneficial ownership split. This rule comes from section 836 of the Income Tax Act 2007 and applies even if the property is owned 90:10 on paper.

How Form 17 Works

To be taxed in line with the actual beneficial ownership shares, a couple must:

• Hold the property as tenants in common in unequal shares (Form 17 cannot be used by joint tenants).
• Document the beneficial split in evidence such as a Deed of Trust.
• Submit HMRC Form 17 within 60 days of the date the last spouse signs.

Late forms are invalid. Form 17 only takes effect from the date of signing and cannot be backdated. Once filed and accepted, it remains in force until the couple separates, divorces, one spouse dies, or the beneficial interests change.

Why Form 17 Saves Tax

If one spouse is a higher rate (40%) or additional rate (45%) taxpayer and the other has unused personal allowance or basic rate band, moving rental income to the lower-earning spouse via Form 17 can save thousands of pounds every year. On £20,000 of rental profit shifted from a 40% taxpayer to a basic rate (20%) taxpayer, the saving is £4,000 a year.

The Legal Process: How to Transfer Property to a Spouse

The conveyancing process for England and Wales involves the following steps:

1. Get mortgage lender consent in writing, if there is a mortgage.
2. Sever the joint tenancy if moving to tenants in common.
3. Prepare a Deed of Trust documenting the new beneficial ownership shares.
4. Sign the TR1 transfer deed in front of a witness.
5. Submit Form AP1 to HM Land Registry with the TR1 and any other supporting documents.
6. File an SDLT return, if any chargeable consideration is given.
7. Submit Form 17 to HMRC within 60 days, if rental income is to be split unequally.

A solicitor or licensed conveyancer typically handles steps 4 to 6. Tax advice should sit alongside the legal work, not after it.

Common Mistakes to Avoid

• Adding a spouse to a mortgaged property without checking SDLT. The mortgage assumption alone can trigger a charge.
• Filing Form 17 late or filing it where the property is held as joint tenants. Either makes it invalid.
• Not aligning the Deed of Trust with the Form 17 declaration. Form 17 must reflect reality, not a chosen split.
• Forgetting the 60-day CGT reporting deadline on a later sale of UK residential property.
• Assuming the spouse exemption is automatic where one spouse is not a long-term UK resident.
• Doing the transfer after exchange of contracts when planning a sale. The transfer must be effective before exchange to be respected for CGT.

Get Expert Property Tax Advice

The mechanics of a transfer of property to a spouse are simple. The interaction between SDLT, CGT, IHT, mortgage consent, the Form 17 deadline, and the new long-term residence test for IHT is not. A short conversation with a property tax accountant before the transfer is, in almost every case, the cheapest part of the exercise.

Target Accounting UK advises landlords, homeowners, and couples on tax-efficient property transfers, joint ownership structures, Deeds of Trust, Form 17 declarations, and Capital Gains Tax planning. If you are considering transferring property to your spouse and want to see the numbers before you commit, contact our team for a no-obligation review.

Frequently Asked Questions

Do I pay Capital Gains Tax when I transfer property to my spouse in the UK?

No. Transfers between spouses or civil partners who are living together are made on a no gain, no loss basis, so no CGT is due at the time of transfer. The receiving spouse inherits the original base cost, and CGT only becomes payable when the property is sold to a third party.

Is Stamp Duty Land Tax payable on a transfer of property between spouses?

Only if there is chargeable consideration. A pure gift with no mortgage attracts no SDLT. If the receiving spouse takes on a share of an existing mortgage, that share counts as consideration, and SDLT applies on amounts above the £125,000 nil-rate band (from 1 April 2025). The 5% additional dwellings surcharge does not apply to transfers between spouses, and transfers made under a divorce court order are exempt entirely.

How do spouses split rental income unequally for tax?

The property must be held as tenants in common in unequal shares, with the beneficial split documented in a Deed of Trust. Both spouses then sign HMRC Form 17 and send it to HMRC within 60 days of the last signature. Without a valid Form 17, rental income is taxed 50:50 regardless of the actual ownership split.

Are gifts of property between spouses exempt from Inheritance Tax?

Yes, where both spouses are long-term UK residents (UK tax resident for at least 10 of the previous 20 tax years), transfers are fully exempt from IHT with no cap. Where the recipient is not a long-term UK resident, the exemption is capped at £325,000 unless that spouse elects to be treated as long-term resident.

Do I need my mortgage lender’s permission to transfer property to my spouse?

Yes. If the property is mortgaged, the lender must consent in writing before the transfer can be registered at HM Land Registry. The lender will run an affordability check on the new joint borrower.

Can I transfer my buy-to-let property to my spouse to save tax?

Yes, and this is a common and legitimate planning step. The transfer is no gain, no loss for CGT, and Form 17 can be used to allocate rental income to the lower-earning spouse. Watch the SDLT position if there is a mortgage, since the lender’s share of debt taken on counts as chargeable consideration.

What documents are needed to transfer property to a spouse in the UK?

A standard pack includes the TR1 transfer deed, Form AP1 (Land Registry application), ID verification, mortgage lender consent (if applicable), a Deed of Trust where unequal beneficial shares are wanted, an SDLT return where any consideration is given, and Form 17 where rental income is to be split unequally.

When should the transfer happen if we are planning to sell the property?

Before exchange of contracts. A transfer made after exchange will not be effective for CGT on the sale, so the planning must be in place beforehand, with the Deed of Trust dated and the Land Registry application underway.