Shared Home Ownership Explained: How It Works in the UK

Married couples, unmarried partners, family members, and investors who jointly own residential property.

How Capital Gains Tax (CGT) applies where a property is owned by more than one person, how gains are split between co-owners, and whether each owner qualifies for Private Residence Relief (PRR).

Shared ownership does not automatically mean shared tax treatment. Each owner’s CGT position is assessed individually. Differences in occupation, ownership percentage, and use of the property can create unexpected liabilities.

Leasehold Responsibilities in Shared Ownership

Shared home ownership offers a more accessible route to owning a home for those who cannot afford the full deposit or mortgage on a property that suits their needs. Under this scheme, buyers purchase a share of a property, typically between 10% and 75% of its market value and pay rent on the remaining portion to a housing provider.

The initial purchase can be funded through a mortgage or savings, along with a deposit usually ranging from 5% to 10% of the share. Over time, owners have the option to buy additional shares in the property through a process known as “staircasing,” reducing the amount of rent paid to the landlord.

Shared ownership lets buyers get on the housing ladder with a smaller deposit and a part-rent, part-buy model.

Shared ownership properties can be new builds or resales and are often available through housing associations or local councils. For individuals with long-term disabilities, adapted homes may also be available through the scheme.

All shared ownership homes are leasehold, and buyers are typically responsible for service charges and ground rent.

Different rules apply in Northern Ireland, Scotland and Wales where alternative schemes, such as Right to Shared Ownership, may apply if you are currently renting.

Private Residence Relief for Each Owner

Private Residence Relief (PRR) is assessed separately for each individual.

• If both owners lived in the property as their only or main residence, full relief may apply.
• If only one owner occupied the property as their main residence, PRR may apply to one share but not the other.
• If an owner moved out and acquired another main residence, relief may be restricted.

This means one co-owner may face no CGT liability, while another may have a taxable gain on the same disposal.

Unequal Occupation and Use

Tax differences commonly arise where:

• One party moved out before sale.
• The property was partially rented.
• Part of the property was used exclusively for business purposes.

In such cases, PRR may be restricted and part of the gain may become chargeable.

Different Ownership Percentages

Ownership structure matters.

• Changing ownership percentages before sale can affect CGT outcomes.
• Transfers between spouses may qualify for no gain – no loss treatment.
• Transfers between unmarried partners may trigger a disposal for CGT purposes.

The legal and tax consequences depend on relationship status and timing.

Real-World Scenarios

• Married couples: Often benefit from inter-spousal transfer rules and shared relief planning.
• Unmarried co-owners: Transfers may create immediate CGT implications.
• Family members: Ownership proportions and occupation history determine relief eligibility.

Each scenario requires confirmation of ownership and residence history before sale.

Risk Considerations

Where ownership or occupation differs between parties:

• One co-owner may face CGT while another does not.
• Relief may be partially restricted.
• Incorrect assumptions may delay completion or create unexpected liabilities.

Reviewing the tax position before exchange of contracts reduces the likelihood of unexpected charges.