The Business Owner Who Thought He’d Get £126k of Borrowing, but Got £292k

Many business owners try to work out mortgage affordability themselves before speaking to a mortgage adviser.

On the face of it, that seems perfectly reasonable.

If business profits increase, borrowing should increase too.

The problem is that lenders don’t always assess business owners in the way people expect.

Recently, we spoke with a business owner who was considering relocating with his family.

The family were exploring a range of options, from purchasing a sensible long term home to potentially stretching for a “forever home” if the right property became available.

Before our conversation, the client had already done some calculations of his own.

To be fair, they were sensible calculations.

The Calculation

A few years earlier, the client had arranged a mortgage based on business income of around £104,000.

Since then, profits had grown to approximately £132,000.

An increase of around £28,000.

The client’s assumption was straightforward.

If lenders generally offer borrowing somewhere around four to five times income, perhaps that additional profit might create another £126,000 of borrowing capacity.

It’s exactly the sort of calculation many business owners would make.

Unfortunately, mortgage affordability isn’t always that simple.

What Had Changed?

The most significant change wasn’t necessarily the increase in profit.

It was how the business was being assessed.

The clients operated through a limited company and owned 100% of the shares between them.

Like many business owners, they took relatively modest director salaries and retained profits within the company.

The structure was sensible and it was tax efficient.

However, it also meant that the lender wasn’t simply applying an income multiple to a single figure.

Instead, they were assessing a much wider picture, including:

• Director salaries
• Company profits
• Shareholding structure
• Trading history
• Existing commitments
• Sustainability of income
• Future affordability

For limited company directors, the question isn’t always “What do you earn?”

More often, it’s “How does this particular lender interpret your business?”

Looking Beyond Maximum Borrowing

The clients were considering properties ranging from around £800,000 up to approximately £950,000.

They also had substantial equity available from their existing home and additional investments that could be used if required.

Interestingly, the discussion wasn’t really about maximising borrowing.

It was about understanding what was realistically achievable whilst keeping monthly payments at a comfortable level.

That’s often a much more useful conversation.

Many people focus on the largest mortgage a lender will offer.

Most families are more interested in what the monthly payments will feel like in real life.

The Surprise

When we assessed the figures using a lender whose criteria suited their circumstances, the outcome was significantly different from what the client had expected.

Instead of finding approximately £126,000 of additional borrowing capacity, the assessment suggested borrowing in the region of £700,000.

Compared with the balance remaining on their existing mortgage, this represented around £292,000 of additional borrowing capacity.

The client’s calculation wasn’t wrong. It was simply based on the assumption that lenders assess business owners in the same way they assess employed applicants.

Often they don’t.

Why This Matters

One of the biggest misconceptions I see among limited company directors is assuming they understand how lenders will assess their income.

That’s completely understandable.

The rules are not obvious. Some lenders focus heavily on salary and dividends and other lenders look at profits.

Some will consider the latest year’s figures and others prefer longer term averages.

Two lenders can look at exactly the same business and arrive at very different affordability outcomes.

The difference can sometimes be hundreds of thousands of pounds.

The Lesson

The purpose of mortgage advice isn’t to maximise borrowing.

It’s to understand what is possible and then decide what is appropriate.

In this case, the client was asking a perfectly sensible question:

“How much more can I borrow?”

The answer turned out to be very different from what he expected.

Not because the business had suddenly become dramatically more profitable or anything had changed about the quality of the business.

It was simply because the lender was assessing the business differently.

For limited company directors, borrowing capacity is rarely determined by a simple income multiplier.

More often, it’s determined by how the lender interprets the figures behind the business.

Sometimes that difference can be far larger than expected.

For families looking to move home, that can be the difference between buying the home they really want and assuming it isn’t possible.

There may be a fee for mortgage advice. The precise amount will depend upon your circumstances.

Your home may be repossessed if you do not keep up repayments on your mortgage or any other debts secured on it.

Information correct at time of writing – June 2026.