If you apply for Shared Ownership in your sole name to stay under the income cap, you should assume the mortgage also needs to be in your sole name.
A joint mortgage usually means joint borrowers, and in Shared Ownership that typically means both names on the lease, which brings you back to the household income limit.
Eligibility and the income cap
For Shared Ownership in England, the headline test is:
- household income of £80,000 or less (or £90,000 or less in London)
If the housing association treats you as a couple purchasing together, it’s hard to keep your partner “out of scope” for eligibility while still trying to borrow jointly.
Can you still get a joint mortgage if you apply alone?
Usually, no — not in the way people mean “joint mortgage”.
Why: the lender’s security is the Shared Ownership lease, and lenders normally want the borrowers to match the legal owners/leaseholders. If you are the only purchaser on the lease, most lenders will expect the mortgage to be in your name alone.
What sometimes works instead (but depends on the provider):
- Sole applicant, sole mortgage, with your partner contributing to bills informally; and/or
- A formal deed of trust / cohabitation agreement to reflect contributions (your solicitor can advise)
Important: housing associations often have rules about who can live in the home and may require occupiers to be declared/approved. Don’t try to “work around” this on the application — it can create problems later.
Does the mortgage need to match the applicant?
In practice, yes.
Shared Ownership is one of the areas where “names matching” matters most, because:
- the leaseholder is the buyer of the share
- the mortgage is secured against that lease
So if the purchase is in one name, the cleanest and most realistic route is a mortgage in that same name.
Stamp Duty: is it based on the share you buy?
You have two SDLT options on Shared Ownership.
Option 1: Pay SDLT on the full market value (“market value election”)
- You calculate SDLT using the full market value, even though you’re buying a share.
- You do not pay SDLT again when you staircase later.
Option 2: Pay SDLT in stages
- You pay SDLT on the price of the share (the lease premium) if it’s above the SDLT threshold.
- You may also pay SDLT on the net present value of the rent if it exceeds the relevant threshold.
- If you staircase, you typically don’t pay SDLT again until you go over 80% ownership, at which point SDLT can be due on the transaction that takes you over 80% (and any later ones).
If you’re a first-time buyer, you may be able to claim first-time buyer relief on your first share (subject to the usual rules).
What to do next
- Ask the housing association: “If I apply as a sole applicant, can my partner live with me, and does their income need to be included?”
- Ask a broker to confirm whether a sole mortgage is realistic on your income once rent + service charge are included.
- Speak to your conveyancer about SDLT: market value election vs staged payments, based on your likely staircasing plan.
If you’d like further assistance, feel free to reach out to one of our independent mortgage advisors at 023 8235 2300 for tailored advice.

