Mortgage affordability calculator

Discover how much you could borrow

  • Free, no obligation initial consultation
  • Exclusive rates
  • Hundreds of 5-star reviews

Mortgage affordability calculator

Discover how much you could borrow

  • Free, no obligation initial consultation
  • Exclusive rates
  • Hundreds of 5-star reviews
Author's Avatar
Author: Carl Shave - CEO and co-founder
Last updated: 06 Dec 2024

What information will you need?

For us to give you the most accurate result, you will need to add the following into our mortgage affordability calculator:

  • Your annual income, including any benefits if applicable.
  • Any monthly commitments you may have:
    • Hire Purchases
    • Loans
    • Student loans
    • Child maintenance payments
    • Credit card payments

There is also the option to add another applicant. If you wish to do so, we will need the listed information for them as well.

How much can I borrow for a mortgage?

There is no set rule that outlines how much an individual can borrow. Instead, lenders will consider each application on a case-by-case basis. The majority of applicants’ borrowing will be capped at 4.5 times their annual income.

The main element lenders look at is your income; generally, the more you earn, the more you can borrow. However, if you have bad credit for example, you may not be able to borrow as much as someone who has a clean credit history.

The main factors that will influence your borrowing are:

  • Number of dependants – this isn’t necessarily children.
  • Deposit size – the more deposit you can offer, the less risky you are deemed and the more you are likely able to borrow.
  • Any credit commitments – this could be credit cards or any loans.
  • Travel – some lenders may look at your travel expenditure, for example a rail pass.
  • Other mortgages – individuals with more than one mortgage.
  • Your age – this will dictate your term. The longer the mortgage term, the lower the payments.
  • Property value – by knowing this, the lender can assess the expected loan-to-value.
  • Council tax – certain lenders ask what this will cost you.

Remember, mortgage lenders need to be comfortable knowing you can afford to meet monthly repayments. The more attractive you make yourself through this criteria, the better chance you have of getting approved. If you are struggling or just have some questions about the application process, get in touch today.

So, how do mortgage affordability calculators work?

Our residential mortgage calculator is simple and most others available are too.

Firstly, it will ask you how many applicants there are, giving you the option between 1 and 2. Some lenders will allow more than 2 applicants for a mortgage. However, it is more complex when calculating affordability with 3 or more on an application –affordability usually has to be done manually in these instances.

You will then be asked about any monthly commitments each applicant has. This is to help the mortgage borrowing calculator gauge your monthly income after costs. Some of this income will then be going to mortgage payments, so it’s important that the questions are answered as accurately as possible.

Finally, there will be questions asking about your future for a mortgage. For the mortgage broker, these help to understand your situation.

Once all of these fields have been completed, you will be given an estimate of what you could borrow. It’s important to note that this is just a guide; a lender may determine that you could borrow a lot less or a lot more. That’s why it is best to speak to an experienced mortgage advisor who knows the market.

At Just Mortgage Brokers we have experience in all types of mortgages, from Bad Credit to Buy-to-Let. To get started on your mortgage journey, get in touch and we will pair you with one of our expert brokers.

Does your mortgage calculator affect my credit score?

You’ll be pleased to know that all our calculators have no impact on your credit score. At this stage no credit checks are done, the purpose of our calculators are just to give you a guide.

This can allow you to plan before getting in contact with us or applying for a mortgage yourself.

What to do if you’re unable to borrow as much as you expected

Firstly, remember that the figure given to you by our calculator is only an estimate. When you come to apply for a mortgage the lender may allow you to borrow more or not borrow as much. Speaking to one of our advisors can be a better way to get a more accurate representation of your borrowing capabilities.

However, there are other things to consider if you were underwhelmed with your results:

  • Mortgages schemes – there are certain schemes available, like Shared Ownership and Right to Buy, that can make it easier for you to get onto the property ladder.
  • Increase your deposit – there are a number of ways this can be done. Some include saving for longer, or obtaining a gifted deposit from a family member or close friend. You’ll be surprised how your options will open up by providing a larger deposit.
  • Contact a mortgage broker – a broker’s experience will ensure your mortgage application is painted in the best light for a lender. To add to this, if they think you’re not in the right position to apply they will advise against it.
Author's Avatar

Carl Shave

CEO and co-founder

About the author

Carl Shave has been involved in the mortgage & finance industry since leaving education and is one of the co-founders of Just Mortgage Brokers. He has written guest posts and provided journalist comments for companies such as The Times, FT Adviser, Mortgage Strategy, Mortgage Solutions and others, demonstrating his extensive industry knowledge.   Qualifications   Certificate in Mortgage Advice and Practice (CEMAP)   Year Attained: 2001   FCA Profile