How much can you borrow?
If you are a business owner looking to buy a home, you have probably already asked yourself:
“How much can I actually borrow?”
If you have already walked into a local high street bank branch in London or across the Southeast, you might have left feeling a bit deflated. At Sarah Grace Mortgages, while we help clients right across the country, we specialise in mortgages for business owners in these fast-moving regional markets, and we know just how much is at stake. With the average London property price sitting well above £500,000, even a modest increase in borrowing capacity can be the difference between the home you want and a compromise.
Our founder, Sarah Grace, has been in the mortgage industry for the last 30 years. Over three decades of working hands-on with complex incomes and business owners, she has watched corporate setups and financial landscapes constantly shift. She understands how business owners are often treated unfairly when lenders only look at drawings rather than the true strength of the business, and she understands how to navigate the evolving business structures that can leave traditional bank systems struggling.
Quick summary
Standard banks calculate mortgages for business owners by multiplying personal salary and dividends by 4.5, which often means retained profit is overlooked, even where the business is clearly profitable. Backed by 30 years of experience, Sarah Grace Mortgages looks at the bigger picture for business owners nationwide. By reviewing net profits, pension add-backs, and structures like SPVs or minority shares, we work with specialist underwriters who can consider a much wider affordability position.
How much can a business owner borrow for a mortgage?
Most business owners will be assessed at around 4 to 4.5 times their declared income by standard lenders. However, some specialist lenders may consider retained profits, net profit, pension contributions, or wider business income when assessing affordability. In strong cases, this can meaningfully increase borrowing capacity, though it will always depend on lender criteria, deposit size, credit profile, business performance, and overall affordability.
The self-employed and business owner population represents over 4 million people in the UK workforce, yet the standard mortgage system remains built around PAYE employees. That gap is exactly what specialist brokers exist to bridge.
How income assessments vary by business type
To show you how much the approach differs between a standard bank and a specialist underwriter, here is a quick breakdown of what different lenders look at:
The first catch: the retained earnings trap
The biggest flaw in the standard bank calculation comes into play when you own a profitable limited company. You might be making excellent profits, but as a smart business owner, you don’t necessarily extract all of it. You retain money inside the business to reinvest, manage tax efficiently, and support future growth. Because a traditional bank only looks at what you drew out – salary and dividends on your SA302. Many lenders simply ignore retained profit, even where the business is clearly in good health.
We recently worked on a real case for a client here in the Southeast that illustrates this perfectly. A couple came to us after their own bank gave them a disappointing answer. It was a joint application: the wife had permanent employment, took a dividend from the main company, and ran a small side business that generated its own income.
Going purely by their SA302 tax filing numbers, the bank used the standard 4.5x multiple and offered them a mortgage of roughly £450,000 based on a combined personal income of around £100,000.
But we looked at their situation from an entirely different angle:
- The Husband’s main company: He took a modest salary of £12,570 and made substantial pension contributions to prudently reduce his corporation tax. Even after that, the net profit of the company was around £100,000. Combined, his usable income came to roughly £113,000.
- The wife’s side business: While her main employment salary was £30,000, her side limited company also held retained earnings of around £20,000 that she hadn’t drawn out.
Instead of ignoring those hidden figures, we presented the case to a specialist lender who could assess Director’s Salary plus Net Profit, rather than just salary and dividends. By combining the husband’s usable income (£113,000) with the wife’s total income structure (£50,000), we established a total usable income of roughly £163,000.
On top of that, we identified a lender who could consider a higher income multiple, subject to affordability, credit profile, deposit, overall risk, and lender criteria. The difference in their final borrowing capacity was significant compared to the traditional route. Had we needed to stretch it further, we could have explored whether the lender would consider adding back the £25,000 pension contribution or look at heavy technology investments as a one-off cost to support the net profit figure.
Navigating complex business structures in the Southeast
Every business is unique. In competitive property markets like London and the Home Counties, we regularly deal with transactions that are far more complex than a straightforward 100% shareholding:
- Minority shareholdings: We see many cases involving family businesses where parents have passed down shares or property companies to their children. If you own a minority stake, even less than 20%, most standard lenders will default back to basic tax calculations. We know how to assess the structure and present the relevant income clearly, where lender criteria allow.
- Personal rental property trusts and SPVs: Some business owners use trusts, which makes high street banks uncomfortable. Similarly, many of our clients hold rental properties through an SPV (Special Purpose Vehicle). In the past, lenders only looked at the net profit of a rental property if you received £1,000 in rent and made £500 profit, they would only count the £500. Today, we work with specific lenders who can look at the entire gross rental income of £1,000 as part of the wider affordability picture.
What about deposit requirements and credit history?
Two areas that often catch business owners off guard are deposit size and credit profile. Some specialist lenders require a larger deposit from self-employed applicants often 10–15% or above, compared to the 5–10% that may be available on standard PAYE applications. The stronger your deposit, the more lender options you open and the better the rates you are likely to access.
Credit history is equally important, and business owners can sometimes carry complications here – whether from a wound-up company, a period of reduced income, or simply from having a more complex financial footprint. These aren’t necessarily deal-breakers. With the right presentation and the right lender, a nuanced credit picture can often still support a strong mortgage application. It’s worth having an honest conversation with a specialist broker early, so nothing comes as a surprise.
A note on rates
It is worth being transparent about this: specialist lenders who can accommodate complex income structures may sometimes carry slightly different rate profiles compared to the high street. Part of a broker’s job is not just maximising how much you can borrow, but also ensuring the lending is structured sensibly and that the overall cost makes sound financial sense for you. Borrowing capacity and affordability are two different things, and we take both seriously.
The presentation makes the difference
Income multiples are no longer straightforward for business owners. You have multiple income streams, different business interests, and complex structures to navigate.
While we never encourage clients to borrow more than is prudent or necessary, if you have the financial capacity, the means, and the lending is safe, you shouldn’t be penalised simply because you choose to be your own boss.
When a high street bank says no, it is usually because their automated system cannot think outside the box. Our success at Sarah Grace Mortgages lies entirely in how we present your case. We don’t just submit a pile of documents and hope for the best. We spend time preparing your application, highlighting the strengths, mapping out the true cash flow, and building a narrative that human underwriters – at both high street and specialist boutique lenders, can properly understand.
Thirty years of market experience and deep relationships with these lenders mean we know how to present the right information clearly, so the lender can make a fully informed decision.
Ready to understand your true borrowing position?
If you are a business owner in London, the Southeast, or anywhere across the UK, we would love to hear from you. Book a consultation with Sarah Grace Mortgages.
About Sarah Grace Mortgages
With 30 years of dedicated experience in the mortgage industry, Sarah Grace Mortgages specialises in creating bespoke lending solutions for limited company directors, sole traders and entrepreneurs, and clients with complex income streams across London, the South East, and the wider UK. FCA authorised and staffed by CeMAP-qualified advisers, our team provides deep specialist experience that bridges the gap between complex business wealth and traditional mortgage underwriting.
FAQs
Why did my bank offer me a lower mortgage amount than I expected?
Your bank most likely only looked at your personal SA302 tax calculations – the salary and dividends you withdrew. If you keep a large proportion of profit inside your limited company to reinvest or manage tax, most standard lenders will not take that retained profit into account, even if your business is clearly profitable.
Can I use my company’s net profit for a mortgage application instead of my dividends?
Yes, but generally only through specialist lenders or by having a broker properly package your case. Many specialist lenders will assess your income based on Director’s Salary plus your percentage share of Net Profit after tax, which often meaningfully increases your borrowing capacity compared to the dividend-only approach.
What happens if my business profits dropped in the last year?
Traditional lenders will usually set aside their two-year averaging approach and base your entire affordability on the lowest, most recent year’s figure. However, if there is a valid reason for the drop, such as a one-off heavy investment in technology or equipment, we can often negotiate with underwriters to treat it as a one-off expense rather than a structural decline.
How much deposit will I need as a business owner?
This varies by lender and application strength, but as a business owner you should generally expect to need at least 10–15% deposit when working with specialist lenders. A larger deposit typically opens more lender options and can positively affect the rates available to you.
What if I have a complicated credit history?
Business owners often have more complex credit footprints than PAYE employees – this does not automatically prevent you from getting a mortgage. The key is early, honest disclosure to your broker so the case can be properly positioned. Some specialist lenders are equipped to consider nuanced credit histories in context, rather than applying a blanket decline.
Can rental income from a buy to let be used?
Yes, in some cases. While traditional banks used to look only at the thin net profit margin from a rental property, we work with modern lenders who can consider the wider gross rental income passing through your buy to let as part of the overall affordability picture.
Do you only work with business owners based in London and the Southeast?
No. Sarah Grace Mortgages works with limited company directors, sole traders, partners, and businesses right across the UK. Because London and the Southeast contain a high concentration of complex businesses and high-value property markets, we have developed deep specialist experience in these areas – but our expertise applies equally wherever you are based.
