Joint Borrower Sole Proprietor Mortgage (JBSP) Legal Advice

A joint borrower sole propriety mortgage (JBSP) allows you to purchase property with the collaborative support of multiple individuals. Up to four people can be involved. By pooling the applicants' resources, the mortgage qualification process is easier and has a higher chance of approval. However, the downside is that only one individual assumes legal property ownership.

This type of mortgage is common among first-time buyers who might struggle to secure a mortgage independently due to income limitations or credit issues.

The JBSP is an alternative to guarantor mortgages. Also, JBSP considers the combined income of all individuals listed on the application.

One reason you should consider a JBSP advisor is that the terms and conditions of this type of mortgage can vary among lenders in the UK. Borrowers should carefully review the specific details of the mortgage product they are considering. Seeking a professional legal and mortgage advisor can help you understand the implications and make informed decisions regarding this mortgage arrangement.

What are the Advantages and Disadvantages of a JBSP Mortgage?

Before getting into one, you should understand the benefits and drawbacks of a JBSP mortgage. Even though the terms of the mortgage can change, there are some typical advantages and disadvantages, such as:


  • Easier mortgage approval: Combining incomes and resources makes it easier to qualify for a mortgage, which can be helpful for those with lower credit scores and individual incomes.
  • Financial Support: JBSPs can allow family and friends to provide financial support without having a long-term interest in the property.
  • Stamp Duty Benefits: This type of mortgage is also an excellent way to avoid higher Stamp Duty rates that might apply if one of the borrowers already owns the property.
  • Exit strategy: The mortgage carries an exit strategy for borrowers, allowing them to leave the arrangement once the sole proprietor can manage the mortgage independently.


  • Shared responsibility: All borrowers must make equal mortgage repayments, and any missed payments can affect everyone's credit profiles.
  • Limited ownership rights: only the sole proprietor has legal ownership rights. That may be a disadvantage for joint borrowers looking to share the property.
  • Age restrictions: Some lenders may impose age limits, requiring applications to be below a certain age at the end of the mortgage term, which can severely limit eligibility.
  • Dependency on Proprietor: The arrangement relies on the sole proprietor becoming financially capable of taking full ownership. If this doesn’t happen, it could affect the plans.

What Should You Consider Before Taking Out a JBSP?

Before taking out a JBSP mortgage, you should consider various factors to ensure this mortgage arrangement aligns with your financial goals and circumstances. Some of the key factors to consider include:

  • Income stability: You should assess the stability of the incomes of all the borrowers. Fluctuations and disruptions could affect the ability to make mortgage payments. Consider how each borrower would contribute to the repayment.
  • Exit strategy: Identify the exit strategy and whether the goal is for one borrower to eventually take full ownership. Ensure that there is a clear strategy for the transition and that it aligns with the sole proprietor's financial capability.
  • Age limits: Check if the lender has age restrictions. Some lenders may have age limits that require applicants to be below a certain age at the end of the mortgage term.

You should always seek individual legal advice before entering into a JBSP mortgage. You should also ensure you understand the legal implications of having only one person named on the property's ownership deeds. We have experts who can provide you with the legal advice you need.