Last spring, a client came to me frustrated and a little bruised. She ran a successful consultancy, billed well over £120,000 in her most recent trading year, and had been turned down for a self-employed mortgage she could clearly afford. Her accountant, diligently doing exactly what she'd been hired to do, had reduced her taxable income to just over £30,000. On paper, my client looked like someone earning a modest salary. To a lender, that is precisely what she was.

This is not an unusual story. It plays out dozens of times a year, in my office and in mortgage brokers' offices across the country. The conflict at the heart of it is not the result of bad advice from either party — it is the result of two professionals optimising for two entirely different goals, without anyone explaining to the client that those goals are, in important ways, opposed.

The job your accountant is actually doing

Your accountant's role is to represent your business interests to HMRC. That means claiming every legitimate expense, maximising allowable deductions, and ensuring you pay no more tax than the law requires. It is genuinely valuable work, and for most self-employed people it saves real money year after year.

But consider what that process produces: a set of accounts that shows your income after expenses, after pension contributions, after anything that can legally be offset. For a sole trader, that might mean a net profit figure that bears little resemblance to what actually flows through your life. For a limited company director, the picture can be even more distorted — many draw a small salary and take the remainder as dividends, a structure that is efficient for tax purposes but can confuse lenders considerably.

The number your accountant works hard to reduce is, in many cases, the same number a mortgage lender uses to determine how much they will lend you.

That tension is not a flaw in either system. It is simply two systems that were never designed to speak to each other — and the gap between them can be stark. A director billing £120,000 but drawing £30,000 in salary may be assessed on only a fraction of their actual earnings by a high-street lender. The person caught between those two systems is you.

What lenders actually look at

Mortgage lenders are assessing risk. They want confidence that you can meet repayments over a long period, which means they want to understand your sustainable, recurring income. For employed applicants, that is straightforward: a payslip and a P60 tell the story. For self-employed applicants, the picture requires more interpretation.

Most lenders will typically ask for the following:

- SA302s and tax year overviews: Two years of tax calculations from HMRC and their corresponding tax year overviews are the standard requirement. Some lenders will accept one year, particularly where the rest of the application is strong.
- Sole trader income: Lenders generally assess your net profit — the figure remaining after all allowable expenses have been deducted.
- Limited company directors: Many lenders will consider salary plus dividends. A smaller number will look at salary plus net profit, which can produce a significantly more generous assessment of your income.

The specific approach varies meaningfully between lenders. Some high street banks apply rigid criteria and automated systems that struggle with anything outside a standard employed income profile. Others — often specialist lenders or building societies — take a more considered, underwriter-led view and are willing to look at the broader picture of your finances.

This is where having the right advice becomes genuinely consequential. A lender who looks at your net profit and sees £35,000 will offer a very different mortgage to one who looks at your salary, dividends, and retained profits and concludes your income is £95,000. Both assessments may be made in good faith. Neither is automatically right for your situation. But only one of them gets you the home you want.

It is also worth being clear: your home may be repossessed if you do not keep up repayments on your mortgage, so the goal is never simply to borrow as much as a lender will offer — it is to borrow appropriately, based on income you can genuinely sustain.

The conversation worth having before you apply

The practical implication here is not that you should stop working with your accountant, or that tax efficiency is somehow a problem. It is that these two conversations — one with your accountant, one about your mortgage — need to happen in dialogue with each other, not in isolation.

If you are thinking about buying a property or remortgaging in the next twelve to eighteen months, it is worth understanding what your income looks like through a lender's eyes before your accounts are filed, not after. In some cases, the way profit is retained or dividends are structured in a given year can make a meaningful difference to your borrowing capacity — though any decisions of this kind should be made in consultation with a qualified accountant, based on what is right for your business and tax position as a whole. A mortgage broker can help you understand the lending implications; your accountant is the appropriate person to advise on the tax consequences.

There are also details that matter more than most people realise. The trend in your income carries weight — lenders tend to be more comfortable with income that is growing or stable than with income that has dipped, even if the most recent year is strong. A large one-off contract may not be treated as reliably recurring. If you have recently moved from employment to self-employment, some lenders will not consider you at all until you have two years of accounts, while others will.

None of this is designed to be impenetrable. It is simply a set of criteria that rewards preparation and, frankly, the right professional guidance.

The frustrating reality is that many self-employed people are in a far stronger financial position than their mortgage application suggests — not because they have done anything wrong, but because no one has translated their finances into the language a lender can act on. That translation is available. It just requires asking for it before the problem becomes urgent.

The best time to have this conversation is not when you have found the house. It is well before that, when there is still time to shape the outcome.

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*Mortgage eligibility depends on individual circumstances and is subject to lender assessment. Nothing in this article constitutes tax or accounting advice — please speak to a qualified accountant before making any decisions about how you structure your income or business finances. Your home may be repossessed if you do not keep up repayments on your mortgage.*

*Lawes Financial (FCA No. 1046161) is an independent mortgage broker specialising in self-employed applicants. Speak to one of our advisers before your next accounts are filed — it could make more difference than you'd expect.*

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*Figures quoted are illustrative only. Your actual outcome will depend on your
individual circumstances, loan size, term, and the products available to you.*

*This is not financial advice. Speak to an independent mortgage broker before
making any decisions.*

*Lawes Financial Limited (FRN 1046161) is an appointed representative of Andrew Charles Consulting Ltd, which is authorised and regulated by the Financial Conduct Authority (FRN 304904).*