One of My Adult Children Lives With Me. Can I Gift Them Part of My Home?

Done correctly, a partial gift can fall outside your estate after seven years. Done incorrectly, it can fail completely and create additional tax, legal, and family risks.

• Gifting part of your home is a potentially exempt transfer for inheritance tax.
• You must survive seven years for the gift to fall outside your estate.
• Living together does not automatically avoid gift with reservation rules.
• If your child later moves out, market rent usually becomes essential.
• This strategy should only be used where long-term co-occupation is realistic.

A lifetime gift that becomes free of inheritance tax if you survive seven years from the date of the gift.

A gift that fails for inheritance tax because you continue to benefit from the asset. In a property context, this usually means living in a home you have given away without paying proper market rent.

A property that qualifies for private residence relief. A gift of part of your main home to a child who also occupies it as their main residence generally does not trigger CGT at the time of gift.

Inheritance tax is governed by PET and GWR rules. Capital gains tax is a separate issue and does not override inheritance tax failures.

Yes. You can legally gift a share of your home to an adult child who lives with you.

For inheritance tax, this gift is treated as a potentially exempt transfer. If you survive seven years, the gifted share can fall outside your estate.

However, this only works if the arrangement does not fall foul of the gift with reservation rules.

No. This is a critical misunderstanding.

Living together is not enough on its own. HMRC looks at whether each owner is bearing their fair share of the property’s costs.

A broadly acceptable arrangement usually includes:

• Shared occupation as a genuine home.
• Proportionate contribution to running costs and maintenance.
• No element of retained benefit that is inconsistent with the ownership split.

Simply gifting a share and continuing as before is rarely sufficient.

If both of you live in the property, rent is not usually required, provided:

• Your child genuinely occupies the property.
• Costs are shared in line with ownership.
• There is no imbalance suggesting retained benefit.

If your child moves out, the position changes immediately.

At that point, if you continue living in the property and own less than 100%, market rent on the gifted share is usually required to avoid a gift with reservation.

This is where many plans fail.

If your child no longer occupies the property:

• The property is no longer their main residence.
• You are now benefiting from their share.
• Without market rent, the gift can become a gift with reservation.

Once a gift with reservation applies, the gifted share remains in your estate for inheritance tax, even if seven years have passed.

This risk alone means the gift should not be made if future separation is likely.

In many cases, no.

Where the property is your main residence and also the main residence of your child at the time of gift, private residence relief usually applies.

However, future capital gains tax exposure can arise for the child if:

• The property is later sold.
• The child moves out and rents out their share, so the property ceases to be their main residence.
• The property ceases to be their main residence.

This needs to be modelled in advance.

In most cases, no.

Gifting more than half introduces additional risks:

• Loss of control over your own home.
• Exposure to your child’s divorce, bankruptcy, or creditors.
• Practical and emotional vulnerability later in life.

From a planning perspective, restraint is usually a strength.

The biggest mistake is assuming that cohabitation alone solves inheritance tax.

HMRC focuses on benefit, not intention. If the structure changes, for example if a child moves out, the entire plan can unravel.

Another common error is making an irreversible gift without stress-testing future life events.

Inheritance tax planning must survive real life, not just day one.

Before proceeding, ensure that:

• Long-term co-occupation is genuinely expected.
• Ownership proportions are carefully limited.
• Cost-sharing is clear, documented, and defensible.
• You understand the rent requirement if circumstances change.
• Wills are updated to reflect the new ownership structure.
• Wider estate planning has been reviewed alongside the gift.

If any of these are uncertain, the strategy may not be suitable.

• Gifting property shortly before ill health.
• Assuming seven years alone solves inheritance tax.
• Ignoring what happens if a child moves out.
• Informal arrangements with no documentation.
• Using this strategy in isolation from wider planning.

Gifting part of your home to an adult child who lives with you can work, but only in tightly defined circumstances.

It is not a shortcut and not a universal solution. The moment occupation or financial balance changes, inheritance tax exposure can return in full.

This is a strategy that requires careful structuring, ongoing review, and alignment with your wider estate plan. Used selectively, it can be effective. Used casually, it often fails.

Disclaimer. The information in this article is general in nature and does not constitute personal financial, tax, or legal advice. UK tax legislation changes frequently, and the specific application of any rule or strategy depends on individual circumstances. Figures, thresholds, and reliefs mentioned are correct as of the 2026 to 2027 tax year unless otherwise stated. Before acting on any information here, consult a qualified adviser who has reviewed your full situation. Bluebond Tax Planning provides personal recommendations only under a signed client agreement, following a full review. Bluebond Tax Planning operates under UK legal frameworks and recognised professional conduct standards. Tax planning and legal work are not FCA regulated.