£6 Million Mortgage: Monthly Repayments & Income Requirements

To get a large mortgage of £6 million, you would typically need a deposit of at least 25%, with some lenders requiring a deposit of 30%. You’re also likely to need an income of at least £800,000 to be approved.

At the time of writing (November 2025), the approximate monthly repayments on a £6 million mortgage are £35,075. This is based on current interest rates being around 5%, a typical mortgage term of 25 years, and opting for a capital repayment mortgage. Based on this, you would repay £10,522,621 over the mortgage term.

Here, you’ll learn how to secure a mortgage of this amount, what the repayments will be and how a broker specialising in high-net-worth individuals can help you get the best deal.

Can you get a mortgage of £6 million or more?

Yes, but you’re unlikely to find many options on the high street, as mainstream lenders usually have maximum loan caps that prevent them from offering loans of this size.

To qualify for a mortgage of £6 million or more, you would need to meet the criteria for high net worth exemption, but if this does apply to you, the good news is that you will have access to private mortgage lenders with no maximum loan caps.

Depending on your income or asset-based wealth, you may qualify for a mortgage of £6 million or more with a private lender, as they are positioned to offer bespoke mortgage deals that aren’t restricted by the usual rules and criteria on the high street.

Private lenders aren’t usually accessible to the general public, as many work exclusively through brokers, like the high-net-worth mortgage specialists we work with.

How much does a £6 million mortgage cost per month?

What you repay depends on your interest rate, mortgage term, and the type of mortgage you choose, such as a repayment or interest-only mortgage.

If you secure a mortgage with a longer term, you’ll typically make smaller monthly repayments but will likely pay more over the mortgage term.

It’s a good idea to speak to one of the advisors we work with to better understand your repayments. They can assist you in obtaining more favourable terms and lower repayments than you might secure on your own when trying to get a mortgage.

How much do you need to earn to get a £6 million mortgage?

Every mortgage provider will have its criteria for assessing affordability, but most will base their calculation on your annual income and multiply it by a fixed amount. The amount you can borrow is based on your salary.

This will typically be 4.5x earnings, but can be 5x earnings and may be as high as 6x earnings, though this is less likely when the borrowed amount is a larger sum.

If you qualify for a high net worth mortgage exemption, however, usual lending rules may not apply, and you might be able to take out a mortgage based on more than six times your income.

Although some mainstream mortgage lenders can provide loans of this size under the right circumstances, this is typically the domain of private mortgage lenders.

As illustrated in the table below, a salary of at least £800,000 per annum (or combined salary for a joint mortgage applicant) is typically required for a £4 million mortgage at the highest possible multiple.

How much deposit do you need for a £6 million mortgage?

Most lenders have stricter criteria for larger mortgage applications, including the deposit.

Most lenders that offer mortgages over £1 million require a 25% deposit, which is £1,500,000 for a £6 million mortgage.

However, in the right circumstances, a specialist high-net-worth lender may be able to offer mortgages with a lower deposit.

This is usually only possible in cases where other assets are included in the calculation but could be an option for those with a healthy property portfolio.

How to get a £6 million mortgage

Once you’ve found a property and completed the necessary calculations, your next step should be to find an experienced mortgage broker. This will increase your chances of approval and help you secure the best available terms.

Using our broker-matching service, you can speak to the right broker straightaway by simply enquiring online.

They’ll be able to help with:

• Deposit requirements: To secure a £6 million mortgage, you will need to save a minimum 25% deposit. The exact amount required will depend on the property value. For example, for a £6,000,000 house, a 25% deposit would be £1,500,000.
• Reviewing and Optimising Your Credit Reports: It’s important to check your credit history before applying to ensure no bad credit issues exist and remove any inaccurate or outdated information that could hinder your chances of securing the mortgage you need.
• Gathering all the necessary paperwork for your application: Your broker will be able to guide you through the application process and all the typical documents required—proof of income, at least three months of bank statements, personal ID, proof of address, evidence of deposit, latest P60 form, etc.
• Determining Your Borrowing Capacity: Based on typical lender salary multiplier calculations, you might assume that £6 million is the maximum amount you can borrow for a mortgage. However, this may not be the case. A mortgage broker can assess your circumstances and eligibility for better deals from lenders, potentially allowing you to borrow more at better interest rates.
• Identify the Right Lender and Secure the Best Deal: Your mortgage broker can help you identify lenders offering the best interest rate terms. This can save you time and potentially money.
• Guiding you through the Mortgage Process: Getting a mortgage can be difficult, especially if it’s your first application. The right mortgage broker can help you with any issues you may face along the way, look after your interests, and be your lifeline in case anything goes wrong.

Example monthly repayments for a £6 million mortgage

The table below shows how monthly payments on a £6 million mortgage can change depending on the rate and term.

Interest-only mortgages

Under specific conditions, it is possible to secure a £6,000,000 mortgage on an interest-only basis, but meeting certain criteria and finding a lender willing to offer high-net-worth mortgages on this basis is crucial.

The repayment amount for interest-only mortgages stays the same regardless of the loan term. For example, if the monthly repayment at a 6% interest rate is £30,000, it will remain the same whether you choose a 15-year or a 30-year term. This is due to the principal amount not decreasing and being paid off in full until the end using a separate repayment vehicle.

For these tables, we assume the interest rate stays the same for the full length of the mortgage. Interest rates can change if you remortgage to a different rate or move from a fixed or discounted deal to the lender’s standard variable rate (SVR).

With the Bank of England base rate currently at 4% (November 2025) and the average mortgage rates ranging between 5% to 6%, the repayment figures shown in the table above would be the most realistic. Please be aware that these figures can change when the base rate changes.

Why is it more difficult to get a mortgage of this size?

The process of getting a very large loan, such as a £6 million mortgage or upwards, is very similar to that of a “normal”-sized home loan.

The main factor that sets the process apart is how difficult it can be to find a willing lender.

As larger value loans are deemed considerably higher risk, fewer mainstream lenders can cater for your requirements.

Moreover, more expertise is required when dealing with mortgages with high loan values, meaning you will likely need to find a private or specialist lender.

How to find the right lender

Although they can be more difficult to find, rest assured that specialists and private mortgage providers are willing to offer very large mortgages to people who qualify for a high net worth exemption.

Many of these lenders can only be approached through mortgage brokers, but the good news is that our network includes advisors who specialise in high-net-worth mortgages.

We can match you with a broker who has deep working relationships with lenders offering mortgages of £6 million and up and even mortgage providers who have the flexibility to offer deals worth tens of millions of pounds.

These lenders offer bespoke mortgage deals, and your broker can negotiate exclusive terms and rates with them on your behalf.

Other factors that will affect your eligibility

When you’ve found a willing lender, similar eligibility checks will apply as with any mortgage, although if you qualify for a high net worth exemption, the right lender may assess what kind of deal you qualify for on a bespoke basis.

Affordability

You have to be able to afford your mortgage and you can provide evidence (usually determined by income) to back this up.

Lenders need proof that you can feasibly borrow the sum you’ve applied for, and be confident that can keep up with the repayments throughout the life of the loan.

However, a loan of £6 million or more will be assessed differently than it would be on the high street.

Private lenders have the flexibility to offer mortgages based on income multiples of seven times salary and up, and even strike up asset-backed mortgage agreements for customers whose wealth is tied up in assets.

Loan to Value ratios

Generally speaking, a lower loan-to-value ratio (LTV) opens you up to a wider variety of lender options and access to more competitive rates.

This is because the more you invest from your own pocket, the more reassurance you are giving mortgage providers of your commitment.

What’s more, lenders often cap the amount they will lend you based on the property’s LTV.

For example, one loan provider may not be willing to lend for an £8 million mortgage unless you have an LTV of at least 90%.

If you have an LTV of 80% on the other hand, the same provider may be willing to extend this to a £10 million mortgage.

Credit history

Private lenders may not be bound by the same regulations as high street ones, but having clean credit is likely to boost your chances of securing a favourable deal.

That said, lenders who specialise in high net worth mortgages have the flexibility to offer mortgages to borrowers with various types of bad credit, but it may affect the rates you’re offered.

Get matched with a high-net-worth mortgage expert today

If you’re looking for a mortgage of £6 million or more, you won’t find many options on the high street, so your best bet is to speak to a broker specialising in high-net-worth mortgages.

Through them, you will access a world of viable options, including private lenders that are only approachable via a broker.

We offer a broker-matching service that will quickly assess your needs and circumstances and pair you with the broker who, based on their track record, knowledge, and lender contacts, is best placed to get you a mortgage for £6 million or more.

Call 0330 818 7026 or make an enquiry, and we’ll set up a no-obligation chat between you and a high net-worth mortgage broker today.