Date: 13 November 2026If you're considering a £1 million mortgage, one of the first questions you'll probably ask is: "How much do I need to earn?" The answer isn't always straightforward. Whilst online calculators can provide a rough guide, many lenders assess affordability very differently, particularly when dealing with larger mortgages and more complex income structures.
As a general rule, many high street lenders will offer between 4.5 - 5.5 and sometimes 6 times your annual income, depending on your circumstances.
Using those multiples as an illustration:
| Income Multiple | Approximate Income Required |
| 4.5x | £222,000 |
| 5.0x | £200,000 |
| 5.5x | £182,000 |
| 6.0x | £167,000 |
However, income multiples are only part of the story.
Many lenders will also assess:
This means two applicants earning exactly the same income could receive very different borrowing offers.
Many borrowers assume that a mortgage calculator gives the final answer. In reality, calculators often use simplified affordability models and do not always reflect specialist lending criteria.
We've helped clients who were initially told they could borrow significantly less than they eventually secured because the lender was prepared to take a more holistic view of their finances.
Examples include:
Potentially, yes.
Some lenders will consider:
This can make a substantial difference to borrowing power compared with a lender that only uses salary and dividends.
For business owners purchasing higher-value properties, lender selection can be just as important as the figures on the application.
As borrowing requirements increase, the range of available lenders often changes.
Alongside mainstream banks, clients may benefit from considering:
These lenders may have different approaches to income assessment, asset positions and overall affordability.
The right lender will depend on your circumstances, objectives and long-term plans.
Before applying for a large mortgage, consider:
Reducing unsecured commitments can improve affordability calculations.
This is particularly important for company directors, equity partners and high earners with variable income structures.
A strong credit history can give access to a wider range of lenders and products. Review your credit report at Check My File, Experion, Transunion or Equifax
If income is expected to increase, waiting for the right point in the tax year or after a bonus payment can sometimes strengthen an application.
Understanding your borrowing capacity before finding a property can prevent delays and disappointment later.
One of the biggest misconceptions in the mortgage market is that all lenders assess applications in the same way.
They don't.
Some lenders have specialist criteria for:
Knowing which lender is most likely to support your circumstances can make a significant difference to the outcome.
A £1 million mortgage is achievable for many borrowers, but the income required will depend on far more than a simple multiplier.
The right lender, the way income is assessed and the structure of your finances can all influence how much you may be able to borrow.
If you're considering a large mortgage loan, want to understand your borrowing potential or have complex income that doesn't fit standard affordability models, we're here to help.
Speak to MDJ Mortgages for a personalised borrowing assessment and discover which lenders may be best suited to your circumstances.
Your home may be repossessed if you do not keep up repayments on your mortgage.
