How much can I borrow

Can’t work out how much you can borrow on a residential mortgage? Let’s demystify what lenders will use…..

What income multipliers do lenders use to calculate borrowing capacity?

In simple terms, income multipliers are the factors lenders use to calculate how much money you can borrow based on your annual income. The idea is that by multiplying your income by a certain figure (typically 4.5 to 5.5 times your income), lenders can get a sense of your borrowing potential. For example, if your annual income is £80,000 and the lender uses a multiplier of 5, you could potentially borrow up to £400,000.


Let’s see what lenders class as income:


Dentists operating as a Self-Employed sole trader / partnership

Lenders will typically work off the latest or an average of the latest 2 years tax return income, for example, if your last 2 years figures have been:


22/23 tax year £86,500

23/24 tax year £92,500


The average is £90,000 x 5 (lenders income multiplier) = £450,000


Dentists operating via a Limited Company

This is where lenders can vary significantly, let’s say you own 100% of the shares in your business and the figures are as follows:


Profit before corporation tax £145,000

Profit after corporation tax £110,325

Directors salary drawn £9,000

Dividends taken £41,250


Similarly to the above, lenders will use the average of the latest 2 years, for this example, we assume that the latest 2 years figures are the same.


Below are examples of different lenders calculations:


Salary & Dividends

Majority of high street lenders will use salary & dividends. 


Example £9,000 + £41,250 = £50,250 (income used)


Calculation £50,250 x 5 = £251,250 mortgage


Profit after tax + salary

There are a number of mainstream lenders who are able to use these figures.


Example £110,325 + £9,000 = £119,325 (income used)


Calculation £119,325 x 5 = £596,625


Profit before tax + salary

There is then a handful of lenders will use these figures.


Example £145,000 + £9,000 = £154,000


Calculation £154,000 x 5 = £725,000


As you can see in this example, the profit before tax lender will lend nearly 3 times more than the salary & dividend lender.


Alternatives for Associate Dentists

We also have other options available where you may have upskilled and are now earning more than the average of your latest 2 years, this is where we can use the average of your last 3 months income receipts from the practice(s) you work at. 


Let’s say you have received the following payments into your account over the last 3 months. 


Example Month 1 £12,100 | Month 2 £9,320 | Month 3 £10,400


The average of the above is £10,607 x 12 months = £127,284


Calculation £127,284 x 5 = £636,420


Conclusion

While income multipliers are a helpful starting point, there are several other factors that lenders will take into consideration when assessing your mortgage application 


Stability of Income: Lenders will want to see a consistent income history. For self-employed dentists, having several years of financial records (such as tax returns or accountants) will demonstrating stability.


Deposit Size: A larger deposit can increase your chances of securing a mortgage, as it lowers the lender’s risk. Some lenders may offer higher multipliers to those with a larger deposit.


Credit Score: Your credit history plays a significant role in determining whether a lender will approve your application and the terms they offer. A strong credit score can often allow for a higher borrowing capacity.


Debt-to-Income Ratio: Lenders will assess your existing personal financial commitments (such as loans or credit cards) relative to your income. A lower debt-to-income ratio can improve your chances of securing a mortgage with a favourable multiplier.


At Sarah Grace Mortgages, we specialise in helping dentists navigate the mortgage process and find the best deals suited to your unique financial situation. If you're a dentist looking to purchase your first home, moving home, remortgaging your existing home or invest in buy to let, contact us today for expert advice via one of the following:


0203 6333 888

letstalk@sarah-grace.co.uk

www.sarah-grace.co.uk

By Jordan Nasser July 24, 2025
Podcast with Dentists Who Invest – Featuring Sarah Grace | CPD Available If you're a self-employed dentist or business owner wondering whether it's possible to get a mortgage with fewer than two years of accounts, you're not alone – and the good news is, you're not without options. Sarah recently joined James Martin on the Dentists Who Invest podcast to explore this very topic. In our discussion, we unpacked the common concerns self-employed professionals face when applying for a mortgage, including: ✅ Whether lenders will consider applicants with only one year of accounts ✅ What documentation you really need ✅ The importance of specialist mortgage advice for self-employed dentists ✅ How timing, planning, and presentation can impact your application If you're early in your self-employment journey or planning to make the switch soon, this episode is packed with practical advice designed to help you get mortgage-ready – without having to wait years to prove your income. 🎧 Listen now : Can I Get a Mortgage with Less Than 2 Years of Accounts? – Podcast Episode 📝 CPD Certificate Available : This episode is eligible for verified CPD, making it a valuable use of your time both personally and professionally.
By Jordan Nasser July 9, 2025
In today’s digital world, it’s never been easier to access financial advice. TikTok, Instagram, and YouTube are overflowing with voices promising the latest ‘mortgage hack’. However, as medics, navigating the complexities of income structure, self-employment, and professional obligations, the advice you consume can have serious consequences—especially when it comes from unqualified or unregulated sources. Have you heard of the term “Finfluencers”?! These are social media influencers who share financial tips and insights, often without any formal qualifications or regulatory oversight. Many are charismatic, persuasive, and highly active online. Some even partner with brands or use affiliate links to promote financial products for commission. While some content may be genuinely well-intentioned, the problem is simple: financial guidance is not one-size-fits-all, and the wrong advice can do more harm than good, especially in complex areas like mortgage lending. Why Medics Are Especially at Risk Medics often face a unique set of financial circumstances, such as: Variable income from multiple sources (NHS, private, practice ownership) Complex tax structures (self-employed vs limited company) Eligibility challenges for certain mortgage products Finfluencers rarely understand or even acknowledge these nuances. Their advice is usually generalised and aimed at mass appeal ‘ WHY YOU NEED 3 YEARS TAX RETURNS TO GET A MORTGAGE ’ (sidenote – you do not ), which can mislead professionals like yourself into believing certain strategies are viable when they are not. The Dangers of Unregulated Advice Here’s what makes relying on social media advice risky:  No accountability: Most finfluencers are not regulated by the Financial Conduct Authority (FCA), meaning they don’t have a legal duty to ensure their advice is accurate, ethical, or in your best interest. No protection: If something goes wrong, you won’t have access to recourse via the Financial Ombudsman Service or Financial Services Compensation Scheme. Product bias: Many influencers are paid to promote certain financial product, whether or not they’re suitable for your situation. Taking action based on a 30-second TikTok could lead to expensive mistakes, mortgage rejections, or missed opportunities for tax efficiency and long-term financial stability. The Value of Professional Advice As regulated mortgage advisers who specialises in working with medics, we are bound by strict professional standards. This includes: FCA compliance to ensure your best interests are always prioritised Tailored solutions based on a deep understanding of your career path, income structure, and long-term goals Access to lenders who understand your profession and offer more flexible underwriting Ongoing support, not just a one-time post or reel – we always say to anyone that we work with that we want to look after you for your ‘mortgage life’ and not just on a one transaction basis How to Tell the Difference Here are some simple ways to distinguish between a finfluencer and a regulated adviser:
June 3, 2025
June 2025 Mortgage Market Update - What do the inflation rises mean for interest rates?
Show More