Joint Borrower Sole Proprietor (JBSP) Mortgages | SNS Mortgages & Financial Services
A Joint Borrower Sole Proprietor (JBSP) mortgage is designed to help you buy a property when your income alone isn’t enough — by allowing a family member or friend to support your application.
At SNS Mortgages & Financial Services, we help structure JBSP mortgages correctly so you can maximise borrowing while keeping full ownership of your property.
What Is a JBSP Mortgage?
A JBSP mortgage allows:
- Multiple people to be named on the mortgage
- Only one person to be named on the property ownership (title deeds)
This means:
- All borrowers contribute to affordability
- Only one person legally owns the property
It’s commonly used by parents helping children, but can also work in other situations.
How Does a JBSP Mortgage Work?
With a JBSP mortgage:
- All borrowers are jointly responsible for repayments
- Lenders assess the income and financial position of everyone involved
- Only the main applicant owns the property
If one borrower cannot contribute, the others must cover the payments.
This structure allows you to borrow more than you could on your own, without sharing ownership.
Who Uses JBSP Mortgages?
JBSP mortgages are often used in scenarios such as:
- Parents helping children get onto the property ladder
- Family members supporting affordability
- Couples where only one partner will own the property
- Avoiding additional stamp duty where a supporter already owns property
Criteria for a JBSP Mortgage
Lenders assess JBSP mortgages similarly to standard mortgages, but with additional checks.
They typically consider:
- Income and outgoings of all applicants
- Credit history across all parties
- Existing financial commitments
- Age of the oldest borrower (affects mortgage term)
Some lenders may also require:
- Minimum income for the main applicant (e.g. £20,000–£25,000)
- Restrictions on whether supporting borrowers can live in the property
- Independent legal advice for all parties
Criteria can vary significantly between lenders.
Stamp Duty Benefits
One of the biggest advantages of a JBSP mortgage is how stamp duty is calculated.
Because only one person owns the property:
- Stamp duty is based solely on the buyer’s status
- The supporting borrower’s property ownership is ignored
This can help avoid higher rates for additional properties, potentially saving thousands.
Which Lenders Offer JBSP Mortgages?
Both mainstream and specialist lenders offer JBSP options, including:
- Barclays
- NatWest
- Skipton Building Society
- Metro Bank
- Furness Building Society
- Clydesdale Bank
Each lender has different rules, so choosing the right one is key.
Alternatives to a JBSP Mortgage
Depending on your situation, other options may include:
- Buying on your own
- Saving a larger deposit
- Using a gifted deposit
- Shared ownership schemes
- Standard joint mortgages
We help you compare all options to find the best route.
Important Things to Consider
Before choosing a JBSP mortgage, think about:
- Legal advice – All parties should fully understand their responsibilities
- Exit strategy – How and when the supporting borrower will be removed
- Future affordability – Can you manage repayments alone later?
- Insurance protection – Life or income protection for all borrowers
Because all borrowers are fully liable, clear planning is essential.
Is a JBSP Mortgage Right for You?
A JBSP mortgage may be suitable if:
- You need additional income support to borrow enough
- You want to retain full ownership of the property
- A family member is willing to help without owning the home
However, it’s important to consider the responsibilities and long-term implications.
Why Choose SNS Mortgages & Financial Services?
JBSP mortgages require careful structuring and lender selection.
At SNS Mortgages & Financial Services we:
- Assess whether JBSP is the right option for you
- Match you with lenders who accept your situation
- Structure your application for maximum approval
- Explain everything clearly to all parties involved
- Manage the process from start to finish
We make complex arrangements simple and stress-free.
Get Started with SNS Mortgages & Financial Services
If you’re considering a JBSP mortgage, speak to SNS Mortgages & Financial Services today.
We’ll help you understand your options and secure the right solution with confidence.
⚠️ Important: Your property may be repossessed if you do not keep up with mortgage repayments.
FAQs
Can the supporting borrower live in the property?
Some lenders allow it, but many prefer the supporter not to live there.
Can the supporter be removed later?
Yes — usually by remortgaging once affordability allows.
Does the supporter own the property?
No — only the main applicant is on the title deeds.
