Taking out a £100,000 mortgage is a major financial commitment. If you want to get this size of a loan, you should know how much income mortgage lenders think you should have before application.
In this article we’ll explain
- How mortgage affordability is calculated
- What salary you’ll typically need for a £100k mortgage
- How to maximise your borrowing potential
- Estimated monthly repayments
- Deposit requirements
- Finding the right mortgage deal
How Mortgage Affordability Is Calculated
In the UK, most mortgage lenders will figure out how much of a loan you can afford by multiplying your yearly income by a certain number. This is called an “income multiple.”
The most common income multiples lenders use are:
- 4 times annual income
- 4.5 times annual income
However, some lenders may be willing to lend:
- Up to 5 times income
- In certain circumstances, even 6 times income
People who make a lot of money or work in certain professions, like doctors and lawyers, are usually the only ones who can get higher income multiples.
As a general rule, the higher your income multiple, the more you’ll be able to borrow.
What Salary Is Needed For a £100k Mortgage?
Based on average income multiples, you would need to make at least £22,222 a year to be able to get a £100,000 mortgage.
This is based on lenders offering 4.5-5 times your income.
However, if you’re able to find a lender willing to lend 6 times your income, you may only need to earn around £16,700. Accessing these higher multiples often requires a mortgage broker.
If you’re applying with a partner, the lender will take your joint income into account when assessing affordability. This can help maximise how much you’re able to borrow.
How To Borrow More On Your Salary
If your salary falls slightly short of what you’d need to borrow £100k, there are some steps you can take to potentially lend more:
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Use a broker – Brokers have access to more lending criteria and products, including higher income multiples and different ways to calculate affordability.
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Joint application – Applying with a partner or family member can significantly increase total income for affordability calculations.
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Declare other income – Some lenders may allow you to supplement your main salary with income from other sources like benefits, pensions or freelancing.
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Extend the term – Opting for a longer mortgage term means lower monthly repayments, which can improve affordability.
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Find a guarantor – Adding a guarantor may allow you to borrow more by using their income too.
Estimated Monthly Repayments On a £100k Mortgage
Your exact monthly repayments will depend on the mortgage interest rate and length of the term you choose.
As a guide, here are some estimated repayment costs on a £100,000 mortgage:
- 25 year term at 5% interest = £585 per month
- 25 year term at 6% interest = £644 per month
- 30 year term at 5% interest = £506 per month
- 30 year term at 6% interest = £553 per month
The longer your mortgage term, the lower your monthly repayments will be. But opting for a longer term means you pay more interest overall.
Deposit Requirements
Most lenders will look for a minimum 10% deposit when applying for a £100k mortgage. This means you’ll need around £10,000 as a deposit.
However, there are some lenders who may accept a 5% deposit, reducing the deposit needed to £5,000.
Putting down a bigger deposit generally helps secure a lower interest rate. But even with just a 5-10% deposit, competitive deals are still available.
Finding The Right £100k Mortgage Deal
With so many different mortgage products and lenders to choose from, it can be difficult to find the right £100k mortgage for your needs.
Using a whole-of-market mortgage broker is the best way to access the different interest rates, terms and criteria available.
A good broker will assess your personal situation and match you with lenders most likely to approve your application. This provides you with the greatest chance of securing a £100k mortgage on the most competitive terms.
Summary
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You’ll typically need to earn between £22k-£25k to borrow £100k based on income multiples of 4.5-5 times your salary.
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Using a broker and joint applicant can help maximise how much you’re able to borrow.
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Estimated monthly repayments on a £100k mortgage range from £585-£707 per month.
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Aim for at least a 10% deposit if possible, but 5% options are available.
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Work with a broker to find the right lender, interest rate and overall deal for your needs.
What Do I Need to Use One?
To get the most accurate estimate from a home loan calculator, you’ll need three key pieces of information:
- Mortgage Amount: How much you want to borrow to buy the house of your dreams.
- Loan Term: The amount of time you have to pay back the loan, usually between 15 and 30 years.
- Interest rate is the amount of money you borrow each year, shown as a percentage. It has a direct effect on your monthly payment.
Just enter these details into our mortgage monthly payment calculator, and you’ll have an instant estimate of your repayment amount.
How much can I borrow for my mortgage?
You can usually borrow around 4 to 5 times your salary.
Some lenders will lend you up to six times your salary, but they will be very picky about who they give this much money to. Lenders also have different rules and the income multiple they allow can depend on many things.
They include:
- salary and source of income
- using a government homeownership scheme
- Extra benefits, like the fact that Barclays Premier customers get a slightly higher income multiple.
- deposit size
- financial commitments and bills
- age
- length of mortgage
- leasehold costs
Most lenders will take your age into account when deciding the length of your mortgage term. For example, many require your mortgage to be fully repaid by the time you reach retirement age. This could limit your term if you’re applying at an older age. If you have a shorter term, you will have higher monthly payments. This could mean you’re more limited in how much you can borrow overall.
In addition, the size of your deposit can also affect the amount you’re able to borrow. A larger deposit means more of your property price is paid upfront, which means you’ll need to borrow less. This can result in a shorter mortgage term and lower monthly repayments.
How Much Income You Need for a 400k Home (Mortgage Broker Insider) #mortgage #realestate
FAQ
Can I get a £100,000 mortgage if I earn £30K?
As you can see, an applicant earning £30,000 would be unable to afford £100,000 if the lender used a multiple of 3x their income, as the maximum they could borrow would be £90,000. On the other hand, if you find a lender willing to offer a multiple of 4x your income, you would only need to earn £25,000 to achieve a £100,000 mortgage.
Can I buy a house with a 100K salary in the UK?
Yes, a mortgage and a salary of £100,000 can be enough to buy a house in the UK. This is especially true in areas outside of London where home prices may be lower. *Privacy Notice – Any information provided will be treated with confidentiality and will only be accessible within Ascot Mortgages.
Can a £100K salary get a mortgage?
If you make £100,000 a year, you might be able to get a mortgage for between £400,000 and £550,000, depending on things like your down payment and credit score. 02/ How does a £100k salary affect the ability to get a mortgage in the UK?.
Should I get a mortgage on a 100K salary?
Current rates can vary, so securing a low rate can significantly affect your monthly financial burden. When considering a mortgage on a 100k salary, think about: Future income stability and career prospects. Other financial goals and obligations. The housing market and property values.
Is a £100,000 salary enough to buy a house?
If you make £100,000 a year, you may have a lot more mortgage options because lenders will let you borrow more because your income is higher. 03/ Is a mortgage on a salary of £100,000 enough to buy a house in the UK?.
How much can I borrow if I earn £100,000 a year?
Enhanced Multiplier: Up to 5.5 times your salary, depending on other factors such as your credit score and debt-to-income (DTI) ratio. Here’s the table with a £100,000 salary per year: This table outlines the maximum mortgage amounts you could potentially borrow based on different income multipliers.
How much should I make for a 100k mortgage?
To recap: For a $100,000 mortgage, you need to make a minimum of $29,138 per year. To get this number, we calculated the percentage of income based on the 28/36 rule of thumb, which states that mortgage payments should be 28% or less of your gross income and no more than 36% of your total monthly debts.
How much would a 100k mortgage cost per month?
How much would a 100k mortgage cost monthly? At the time of writing (June 2025), the average monthly repayments on a £100,000 mortgage are £585. This is based on current interest rates being around 5%, a typical mortgage term of 25 years and most borrowers opting for a capital repayment mortgage.
How much mortgage can I get with a $75000 salary?
How much mortgage can I afford with a 72k salary?
One rule of thumb is that the cost of your home should not exceed three times your income. On a salary of $70k, that would be $210,000. This is only one way to estimate your budget, however, and it assumes that you don’t have a lot of other debts.