Sell my house to my son for £ 1. Is it legal in the UK? Yes, you can sell your house to your son for £1 in the UK. It is legal to transfer property to a family member at any price you choose, including a token £1. However, HMRC and other authorities will not simply treat it as a £1 sale. Capital Gains Tax, Stamp Duty Land Tax, Inheritance Tax and care home fee rules may still apply based on the property’s market value and your circumstances.
Many homeowners consider this option as part of estate planning, financial support for their children, or long-term family arrangements. Before moving forward, it is important to understand how a £1 property transfer is treated legally and for tax purposes, and what risks may arise in the future.
This guide explains everything you need to know in clear terms, based on UK property law and current 2026 tax rules.
Is It Legal to Sell Your House to Your Son for £1 in the UK?
It is completely legal to sell your house to your son for £1. In legal terms, this is usually treated as a “gift with consideration” or a transfer at undervalue. The £1 acts as token consideration, but the transaction is essentially a gifted transfer rather than a traditional open market sale.
Even though the price is £1, you must still follow the standard conveyancing process. This includes:
- Instructing a conveyancing solicitor
- Drafting and signing a transfer deed
- Completing identity checks
- Updating the Land Registry
Exchange and completion take place in the same way as a normal residential property transaction. The main difference is that there is no negotiation of price and no estate agent involved.
While the legal side is straightforward, the tax implications are where most confusion arises.
How Does HMRC Treat a £1 Property Sale?
One of the biggest misconceptions is that selling a property for £1 means tax will be calculated on £1. In most cases, this is not correct.
When you transfer property to a connected person (such as your child), HMRC may apply the “market value rule.” This means certain taxes are calculated based on the property’s open market value rather than the £1 paid.
For example:
If your house is worth £300,000 and you transfer it to your son for £1, HMRC may treat the transaction as if it occurred at £300,000 for Capital Gains Tax purposes.
This rule exists to prevent people from avoiding tax by selling assets to family members at undervalue.
Understanding this principle is essential before making any decision.
Capital Gains Tax (CGT) Implications
Capital Gains Tax depends on whether the property has been your main residence.
If the property is your Principal Private Residence (PPR)
If you have lived in the property as your main home for the entire period of ownership, you will normally qualify for Principal Private Residence relief. This means there is usually no Capital Gains Tax to pay.
If the property is a second home or rental
If the property is not your main residence, CGT may apply based on the market value at the time of transfer.
CGT is calculated on:
Market value at transfer
Minus original purchase price
Minus allowable costs (legal fees, stamp duty paid when buying, capital improvements)
In 2026, residential property CGT rates are:
- 18% for basic rate taxpayers
- 24% for higher and additional rate taxpayers
If you originally bought the property for £180,000 and its market value is now £300,000, the gain would be £120,000 (before allowances). CGT would be calculated on that gain, not on £1.
This is one of the most important financial considerations when transferring property to your son.
Stamp Duty Land Tax (SDLT) Considerations
Stamp Duty Land Tax does not always apply to gifted property, but it depends on whether there is an outstanding mortgage.
If there is no mortgage on the property, and your son pays only £1, there is usually no SDLT to pay.
However, if your son takes over responsibility for an existing mortgage, SDLT may apply on the amount of the mortgage being transferred.
The key principle is that SDLT is calculated on “chargeable consideration,” which can include debt assumed.
| Scenario | SDLT Position |
| No mortgage, £1 consideration | Usually no SDLT |
| Mortgage of £150,000 transferred | SDLT may apply on £150,000 |
| The child already owns another property | An additional property surcharge may apply |
If your son plans to rent out the property or use it as a second home, different SDLT rules may apply, including higher rates.
Because SDLT rules can be complex, professional advice is recommended before proceeding.
Inheritance Tax and the 7-Year Rule
When you gift property to your son, it may be treated as a Potentially Exempt Transfer (PET) for Inheritance Tax purposes.
If you survive for seven years after making the gift, it is usually exempt from Inheritance Tax.
If you pass away within seven years, the value of the property may be included in your estate. Taper relief may reduce the tax depending on how many years have passed.
A critical issue arises if you continue living in the property after transferring it.
This is known as a “gift with reservation of benefit.” If you remain in the house rent-free or below market rent, HMRC may still treat the property as part of your estate for Inheritance Tax purposes.
To avoid this issue, you would normally need to pay full market rent and keep clear records.
Care Home Fees and Deprivation of Assets
Some homeowners consider selling their house to their son for £1 in order to avoid care home fees.
In England, if you have assets above £23,250, you may be required to self-fund care.
However, transferring your property for £1 does not automatically protect it from care fee assessment.
Local authorities can investigate whether you deliberately deprived yourself of assets to reduce your liability. This is known as “deprivation of assets.”
If they believe the transfer was made to avoid care costs, they may treat you as still owning the property, even though it is legally in your son’s name.
There is no strict time limit for such assessments. It often comes down to intention and timing.
In some cases, local authorities may use deferred payment agreements to recover care costs from the property after death.
This is a highly sensitive area and should never be approached without proper legal advice.
Mortgage and Redemption Costs
If there is an existing mortgage on the property, it must usually be repaid before transfer unless your son is formally taking over the debt.
Exiting a mortgage early may trigger:
- Early repayment charges
- Exit fees
- Administrative costs
Your solicitor will liaise with the lender to confirm redemption figures.
If your son intends to take out a new mortgage, this will be arranged separately and must meet lender affordability criteria.
Legal Fees and Professional Advice
Even though the property is being sold for £1, you still need a solicitor. Standard conveyancing procedures apply, including:
- Drafting the transfer deed
- Checking title
- Conducting identity verification
- Registering the new ownership
You may also need advice from a tax advisor or accountant, particularly if:
- The property is a rental
- It is owned through a limited company
- There are complex estate planning considerations
Professional advice reduces the risk of unexpected tax bills or legal disputes later.
Risks of Selling Your House to Your Son for £1
While selling your house to your son for £1 may seem simple, there are long-term risks to consider.
If your son later divorces, the property could become part of a financial settlement.
If he faces bankruptcy or debt recovery proceedings, the property may be at risk.
If he defaults on a mortgage secured against the property, repossession could occur.
You would also lose control of the property entirely once transferred. If family circumstances change, reversing the transaction can be difficult and sometimes impossible.
In cases of insolvency, courts can reverse transactions deemed to have been made to avoid creditors.
These risks should be carefully evaluated before proceeding.
Step-by-Step Process to Transfer Property to Your Son
The typical process involves:
- Obtaining a market valuation
- Instructing a conveyancing solicitor
- Reviewing the mortgage position
- Preparing and signing transfer documents
- Completing the transfer
- Registering the new owner with HM Land Registry
Even though the price is £1, the administrative process mirrors a standard property transfer.
When Might Selling for £1 Make Sense?
It may be appropriate in situations such as:
- Long-term estate planning
- Early inheritance planning
- No mortgage and no intention to remain living in the property
- Clear financial stability of the child
However, it may be risky if:
- You are concerned about future care needs
- There are marital uncertainties
- There is existing debt pressure
- You rely on the property for security
Each case should be evaluated individually.
Are There Alternatives to Selling for £1?
Instead of selling your house to your son for £1, you might consider:
- Gifting money toward a deposit
- Leaving the property in your will
- Selling at market value and gifting proceeds
- Using a trust structure for estate planning
If your goal is speed, certainty or avoiding estate agent fees, some homeowners explore selling their house quickly on the open market or to professional buyers and then distributing funds as needed.
Understanding your objective is key before choosing the right path.
Frequently Asked Questions
Can I legally sell my house to my son for £1?
Yes, it is legal in the UK. However, taxes may still be calculated based on market value rather than £1.
Do we need a solicitor for a £1 transfer?
Yes. The transfer must be completed through a conveyancing solicitor and registered with HM Land Registry.
Will my son pay Stamp Duty?
If there is no mortgage, usually no SDLT applies. If a mortgage is transferred, SDLT may apply on the outstanding amount.
Will I pay Capital Gains Tax?
If the property is your main residence, usually no. If it is a second property or rental, CGT may apply.
Can the council challenge the transfer for care home fees?
Yes. If it is considered deliberate deprivation of assets, the local authority may treat the property as still belonging to you.
Is it better to gift the property or leave it in a will?
That depends on your estate planning goals, tax position and family circumstances. Both options have advantages and risks.
Final Thoughts
Selling your house to your son for £1 is legally possible in the UK, but it is rarely as simple as it sounds. While the transfer itself may be straightforward, the tax implications, care home rules and long-term risks require careful consideration.
Before proceeding, it is important to understand how HMRC treats property transfers between family members and how inheritance, capital gains and stamp duty rules apply.
A £1 sale may achieve certain estate planning goals, but in many cases, professional advice is essential to avoid unintended financial consequences.
Making an informed decision today can protect both you and your family in the future.
