How Much Does A £500,000 Mortgage Cost Per Month?
A £500,000 repayment mortgage would cost approximately £2,923 per month over 25 years at an illustrative interest rate of 5%. If you were borrowing £750,000 on the same terms, the monthly repayment would be approximately £4,384.
The actual cost depends on the interest rate, mortgage term and whether you choose a repayment or interest-only mortgage.
Below, we compare mortgage repayments from £500,000 to £750,000, the income you may need, deposit requirements and other costs to consider.
How Much Are the Monthly Repayments on a £500,000 or £750,000 Mortgage?
The table below compares monthly repayments for both mortgage amounts at different interest rates and terms.
| Interest Rate | Mortgage Term | £500,000 Mortgage | £750,000 Mortgage |
|---|---|---|---|
| 4% | 25 years | £2,639 | £3,959 |
| 4% | 30 years | £2,387 | £3,581 |
| 5% | 25 years | £2,923 | £4,384 |
| 5% | 30 years | £2,684 | £4,026 |
| 6% | 25 years | £3,222 | £4,832 |
| 6% | 30 years | £2,998 | £4,497 |
These examples assume a capital repayment mortgage with a constant interest rate throughout the term. Rates are illustrative, not current mortgage offers. Figures are rounded and exclude fees.
A longer mortgage term generally reduces your monthly repayments, but means you pay more interest overall.
Even a small difference in interest rate can make a noticeable difference when borrowing £500,000 or more.
You can also use our mortgage calculator to estimate repayments based on your preferred borrowing amount, interest rate and term.
Not Sure Whether You Could Afford A £500,000 or £750,000 Mortgage?
A £500,000 mortgage is a large commitment, and the right lender can make a significant difference to both the amount you can borrow and the product available.
This can be especially important where income includes bonuses, commission, dividends, retained profits, foreign currency income, investment income or self-employed earnings.
At Kerr & Watson, we can assess your income, deposit and wider circumstances to help you understand what may be affordable and which lenders may be suitable.
What Salary Do You Need for a £500,000 to £750,000 Mortgage?
The income required depends on the lender’s affordability assessment, your existing financial commitments and how your income is earned.
Many lenders use income multiples when assessing applications, but these are only a starting point.
The table below shows the household income required at different illustrative income multiples.
| Income Multiple | £500,000 Mortgage | £750,000 Mortgage |
|---|---|---|
| 4 times income | £125,000 | £187,500 |
| 4.5 times income | £111,111 | £166,667 |
| 5 times income | £100,000 | £150,000 |
These are mathematical examples rather than lending offers. Not all borrowers or lenders will qualify for these income multiples.
Some lenders may consider higher income multiples, particularly for applicants meeting specific income and affordability criteria.
They will also consider your existing credit commitments, childcare costs, dependants, credit history, age and anticipated retirement income.
For customers receiving bonuses, commission, dividends or self-employed income, the amount a lender is prepared to use can differ considerably.
At Kerr & Watson, we review your income and circumstances to establish which lenders may be suitable, rather than relying on a single income multiple.
How Much Deposit Do You Need for a £500,000 or £750,000 Mortgage?
Your deposit will depend on the purchase price and the loan-to-value (LTV) accepted by the lender.
It is important to distinguish between borrowing £500,000 and buying a property for £500,000.
For example, if you want a £500,000 mortgage at 80% LTV, the property would need to be worth £625,000, with a deposit of £125,000.
The table below compares two common deposit scenarios.
| Mortgage Amount | Deposit Percentage | Property Value | Deposit Required |
|---|---|---|---|
| £500,000 | 10% | £555,556 | £55,556 |
| £500,000 | 20% | £625,000 | £125,000 |
| £750,000 | 10% | £833,333 | £83,333 |
| £750,000 | 20% | £937,500 | £187,500 |
Figures are approximate and assume the stated mortgage amount is the amount borrowed.
Some lenders may offer mortgages with smaller deposits, although availability depends on the loan size, property and applicant’s circumstances.
A larger deposit can improve your choice of lenders and may provide access to more competitive interest rates.
Can You Get a £500,000 or £750,000 Interest-Only Mortgage?
Potentially, yes.
With an interest-only mortgage, your monthly payments cover the interest charged rather than reducing the original loan balance.
For example:
| Illustrative Interest Rate | £500,000 Mortgage | £750,000 Mortgage |
|---|---|---|
| 4% | £1,667 per month | £2,500 per month |
| 5% | £2,083 per month | £3,125 per month |
Although the monthly payments are lower, the original mortgage balance remains outstanding and must be repaid at the end of the term.
Lenders will usually require a suitable repayment strategy, which could involve certain investments, assets or property arrangements, depending on their criteria.
Interest-only options are not suitable for everyone, and lenders may impose additional income, deposit or loan-to-value requirements.
Find out Your Options
What Affects the Cost of a £500,000 to £750,000 Mortgage?
Several factors influence the overall mortgage cost:
- Interest rate: A lower rate generally means smaller monthly repayments and less interest paid.
- Mortgage term: A longer term reduces monthly payments but usually increases the total interest payable.
- Deposit and LTV: A larger deposit relative to the property value may provide access to better mortgage rates.
- Repayment type: Interest-only mortgages have lower monthly payments but do not repay the capital.
- Lender criteria: Your income, credit history, property and financial circumstances affect the mortgages available.
Mortgage products may also have introductory fixed or tracker periods. Your payments could change when the initial deal ends, so it is important to consider the longer-term cost rather than only the initial monthly payment.
What Additional Costs Should You Consider?
When arranging a £500,000 or £750,000 mortgage, you may need to budget for more than the monthly repayment.
Additional costs can include mortgage arrangement fees, property valuations, solicitors’ fees and mortgage broker fees. If you are buying a property, stamp duty and moving expenses may also apply.
Some lenders offer fee-free products, while others charge a fixed fee or a percentage of the loan amount.
For example, a 1% arrangement fee would be £5,000 on a £500,000 mortgage or £7,500 on a £750,000 mortgage.
At Kerr & Watson, our standard mortgage advice and application fee is £595, usually split into £150 on application and £445 on mortgage offer. Depending on the case, our fee can range from £0 to £1,995. We explain and agree any applicable fee before proceeding.
Comparing the overall cost of a mortgage, including fees, can be more useful than comparing interest rates alone.
Can You Get a £500,000 to £750,000 Mortgage With Complex Income?
Yes, depending on your circumstances and the lender’s criteria.
Customers borrowing larger amounts may receive income from several sources, including bonuses, commission, self-employment, dividends, retained company profits or overseas earnings.
Lenders do not all assess these income types in the same way.
For example, one lender may consider only part of an annual bonus, while another may use more of it based on a consistent history. Some lenders can also consider a company director’s salary and share of company profits rather than relying solely on salary and dividends.
Choosing a lender whose criteria match your circumstances can make a considerable difference to your borrowing options.
Buying or Remortgaging With a £500,000 to £750,000 Mortgage
Whether you are purchasing a property, moving home or remortgaging, it is worth reviewing the full cost of your mortgage before proceeding.
If you already have a mortgage, your existing equity and outstanding balance will affect the loan-to-value available when remortgaging.
You may also need to consider early repayment charges on your existing mortgage and whether a product transfer with your current lender would be more suitable.
Our advisers can compare available options based on your borrowing requirements and circumstances.
Frequently Asked Questions About £500,000 to £750,000 Mortgages
How much is a £500,000 mortgage per month?
At an illustrative 5% interest rate over 25 years, a £500,000 repayment mortgage would cost approximately £2,923 per month. Over 30 years at the same rate, repayments would be approximately £2,684 per month.
How much is a £750,000 mortgage per month?
At an illustrative 5% interest rate over 25 years, a £750,000 repayment mortgage would cost approximately £4,384 per month. Over 30 years, repayments would be approximately £4,026 per month.
Can I borrow £750,000 with a £150,000 salary?
Potentially. A £750,000 mortgage represents five times an annual income of £150,000. Some lenders may consider this, subject to their income multiple limits, affordability assessment, deposit requirements and other criteria.
Can I get a £500,000 mortgage if I am self-employed?
Yes. Lenders can consider self-employed applicants for mortgages of £500,000 or more. The amount available will depend on your income evidence, trading history, affordability and the lender’s criteria.
Speak to Kerr & Watson About Your Mortgage
Whether you need to borrow £500,000, £750,000 or somewhere in between, Kerr & Watson can help you understand your monthly repayments, borrowing potential and available mortgage options.
As an independent, whole-of-market mortgage broker, we work with high street and specialist lenders to find suitable solutions for our customers.
Speak to Kerr & Watson about your mortgage requirements.
















