Key Facts
- Primary keyword: shared ownership mortgage - independent editorial guide, no commission
- Primary sources: FCA, gov.uk, Money and Pensions Service
- Last reviewed June 2026
What Is a Shared Ownership Mortgage?
A shared ownership mortgage finances the buyer's purchased share of a property under the government-backed shared ownership scheme, where the buyer owns between 10 and 75 percent and pays rent on the remainder to a housing association. Unlike a standard residential mortgage, a shared ownership mortgage is secured only against the owned share, not the full property value.
The shared ownership mortgage market is smaller than the standard mortgage market, with a subset of lenders offering suitable products. Nationwide, Halifax, Santander, Leeds Building Society and Virgin Money are among those offering shared ownership mortgage products as of 2026.
A shared ownership mortgage makes homeownership accessible for buyers who cannot afford a full purchase. The deposit requirement for a shared ownership mortgage is calculated as a percentage of the purchased share - on a 50 percent share of a 300,000 pound property, a 10 percent deposit is 15,000 pounds rather than 30,000 pounds for full ownership.
Who Qualifies for a Shared Ownership Mortgage
To access a shared ownership mortgage in England, applicants must not currently own another home, must have a household income below 80,000 pounds per year (90,000 pounds in London), and must be unable to afford a suitable mortgage on a full purchase. The property must be the applicant's only home.
Priority for shared ownership mortgage properties is given to those with a local connection to the area and to serving military personnel. Some housing associations apply additional local criteria. Applications are made to housing associations, which carry out affordability assessments alongside the scheme eligibility criteria.
Certain existing homeowners may also qualify: those selling a current property as part of relationship breakdown, or those moving from a previous shared ownership property. The eligibility rules should be verified with Homes England or the relevant housing association before applying for a shared ownership mortgage.
Getting a Shared Ownership Mortgage Approved
Lenders assess shared ownership mortgage applications by considering both the mortgage repayment and the rent payable on the unowned share. Combined costs should typically not exceed 35 to 45 percent of net household income depending on the lender's criteria.
The shared ownership mortgage process mirrors a standard mortgage application: income verification, credit assessment, property valuation, and legal work. Because the property is leasehold and involves a housing association as landlord, the legal work takes slightly longer than a standard purchase.
A mortgage broker experienced in shared ownership mortgage products can identify the most suitable lender and product for the specific share percentage, purchase price, and borrower circumstances. Not all brokers are familiar with the shared ownership mortgage market, so checking the broker's experience before engaging is worthwhile.
Staircasing: Buying More of the Property Over Time
Staircasing allows shared ownership mortgage holders to buy additional shares over time, reducing the rent obligation. Each staircasing transaction requires a new valuation at current market value and a new shared ownership mortgage assessment if additional borrowing is needed.
Under 2021 reforms in England, buyers can staircase in minimum 1 percent increments annually. Previously, the minimum was typically 10 percent. The 1 percent option makes gradual equity accumulation more accessible for shared ownership mortgage holders with modest savings.
Once full ownership is achieved, the shared ownership mortgage becomes a standard residential mortgage and the rent obligation ceases. Some housing associations retain a right of pre-emption to buy back the property at market value before it is sold, which should be reviewed in the lease before purchasing.
Shared Ownership Mortgage Costs to Budget For
In addition to the shared ownership mortgage payment and rent, buyers pay service charges, ground rent (on pre-2022 leases), and stamp duty land tax. Service charges can be substantial for new-build apartment blocks, sometimes exceeding 200 to 400 pounds per month.
Stamp duty on a shared ownership mortgage purchase can be structured in two ways. First-time buyers can elect to pay SDLT on the full market value upfront, avoiding further SDLT on staircasing transactions. Alternatively, SDLT is paid on the initial share value and on each subsequent staircasing transaction above the relevant threshold.
Legal fees for a shared ownership mortgage transaction are typically 1,500 to 3,000 pounds, higher than for a standard purchase due to the leasehold structure and housing association involvement. Buyers should instruct solicitors experienced in shared ownership mortgage transactions.
Managing the Ongoing Costs of a Shared Ownership Mortgage
Shared ownership mortgage holders who experience difficulty meeting the combined mortgage, rent and service charge payments should contact the housing association promptly. Most associations have support processes and are motivated to find solutions that preserve the ownership arrangement.
Under the Building Safety Act 2022, leaseholders in England are protected from certain fire safety remediation costs in buildings over 11 metres. Buyers of new shared ownership mortgage properties in larger blocks should confirm the building's safety status before proceeding.
For buyers who are uncertain whether the total ongoing costs of a shared ownership mortgage are sustainable over the long term, a fee-free housing adviser can model the full cost scenario including projected service charge increases and future staircasing costs. A shared ownership mortgage is one of the most accessible routes to homeownership for buyers on moderate incomes in high-cost areas. Understanding the full cost picture including the shared ownership mortgage payment, rent, service charges and future staircasing costs before proceeding ensures the commitment is sustainable over the long term.
Disclaimer: This guide is for informational purposes only and does not constitute financial advice. Mortgage products, eligibility criteria and regulations change frequently. Consult an FCA-authorised mortgage adviser before making any decision. Kael Tripton Ltd is not authorised or regulated by the Financial Conduct Authority.
Frequently Asked Questions
What is a shared ownership mortgage and how does it work?
A shared ownership mortgage finances the buyer's purchased share of a property, typically 10 to 75 percent. The buyer pays the shared ownership mortgage on their share and pays rent on the remainder to the housing association.
What deposit do I need for a shared ownership mortgage?
The deposit for a shared ownership mortgage is calculated as a percentage of the purchased share, not the full property value. On a 50 percent share of a 300,000 pound property, a 10 percent deposit is 15,000 pounds.
Can I get a shared ownership mortgage with bad credit?
Lenders assess shared ownership mortgage applications using standard credit criteria. Adverse credit history may limit the lenders willing to offer a shared ownership mortgage, but specialist products exist. A broker experienced in the market can identify suitable options.
Is a shared ownership mortgage more expensive than a standard mortgage?
The shared ownership mortgage payment is typically lower than a standard mortgage because it covers a smaller share of the property. However, the combined cost of the shared ownership mortgage plus rent plus service charges should be compared carefully with the total cost of alternative options.
Can I remortgage a shared ownership mortgage?
Yes. Shared ownership mortgage holders can remortgage to a new product with their existing lender (product transfer) or switch to a new lender at the end of a fixed-rate period, subject to the new lender offering shared ownership mortgage products.
Sources
Last reviewed June 2026 by Chandraketu Tripathi, Finance Editor, Kaeltripton.com