Buying a home together as a first-time buyer and existing homeowner

By:
Oliver Peace

James Leighton Finacial Services Ltd: Managing Director & Founder

Updated:
19 March 2026

What happens when a first time buyer is buying with a second time buyer?

Buying a home together can be incredibly exciting, especially when one partner is step-ping onto the property ladder for the first time and the other has previous homeownership experience. 

Yet a first time buyer buying with a second time buyer can also bring unique circum-stances, alongside both advantages and potential hurdles to the mortgage process. 

However, none of this means that buying together can’t be a smooth and successful process, which is why thoughtful preparation and the right advice can go a long way!

Understanding your joint mortgage options

If you’re a first time buyer but your partner is not, lenders may apply different rules and affordability criteria. While getting a mortgage broker’s advice isn’t strictly essential, they can provide clarity, carefully explaining the impact of your mixed status on your mortgage options.

They can match you with lenders whose criteria align best with your specific circum-stances, potentially securing more favourable terms or better interest rates than you might find by yourself.

Stamp duty: One first time buyer, one not

Stamp duty becomes trickier when buying jointly, especially when a first time buyer is buying with a second time buyer. That’s because, typically, first time buyer stamp duty relief doesn't apply if one applicant already owns or has owned property previously.

This means you will unfortunately have to pay the entirety of the stamp duty even when just one of you is an existing homeowner.  

Using existing equity wisely

Leveraging equity from one partner's existing property can significantly boost your de-posit, reduce mortgage costs, and open the door to more favourable mortgage deals, which can be key when buying a house with a first time buyer.

You can access this equity efficiently through options like remortgaging or property sales, ensuring optimal timing and maximising the benefits based on your individual financial goals.

Businessperson's Hand Protecting Balance Between Percentage Red Cubic Block And House Model On Wooden Seesaw
businessman saving money concept. hand holding coins putting in jug glass

Managing unequal deposits

When a first time buyer is buying with a second time buyer, one partner can often end up contributing more substantially to the deposit, particularly if they already own a property. 

To protect each partner’s financial interests, legal agreements like a deed or declaration of trust are recommended. 

Such arrangements provide transparency, clearly outlining each person's investment and rights, and greatly reducing potential future disputes.

As for organising these, the panel solicitors recommended by Avant will be able to help you with this.

Choosing the right ownership structure

One of the key parts of buying a house with someone else is choosing between owning property as joint tenants or tenants in common, as this can significantly impact your future financial planning. 

For example, joint tenants own equal shares, automatically inheriting the property up-on the other's death. 

By contrast, buying a house as tenants in common allows unequal ownership percent-ages and the flexibility to leave your share to chosen beneficiaries in your will.

It’s worth pointing out this is a decision that needs to be made when buying a property together irrespective of whether you’re buying a house with a first time buyer or not and will always be something your solicitor will be happy to advise you on.

Approved mortgage loan agreement application

Strengthening your mortgage application

Mortgage affordability assessments are particularly detailed when one applicant already has mortgage commitments. 

This is when a broker can give extra guidance to help improve your chances of approval by optimising your combined financial profiles, advising you on how to present your finances clearly, and choosing lenders more likely to approve your specific situation.

Early repayment charges and porting your mortgage

If the homeowner still has a mortgage with early repayment charges (ERCs) due to being within the initial deal period, there could be an option to port (transfer) that existing mortgage to the new property while adding the first-time buyer onto the mortgage. 

This approach can avoid costly penalties and retain potentially advantageous mortgage terms.

mortgage concept

Communication and financial transparency

Finally, transparency about financial matters is key when a first time buyer is buying with a second time buyer, particularly when taking out a joint mortgage. 

Both partners should openly discuss debts, income disparities, financial expectations, and future financial plans. 

This is why creating a shared financial vision and being upfront from the outset can strengthen your relationship and ensure smoother homeownership.

If you have any questions about joint mortgages and mortgages when one buyer is an existing homeowner and the other is a first time buyer, then please don’t hesitate to contact James Leighton Mortgage Services, who are one of Avant’s recommended mortgage brokers.