Buy-to-let lenders assess the property, expected rent, deposit, ownership structure and borrower’s wider financial position.
For dentists, the application can involve an additional layer of detail. Associate remittance pay, sole-trader profit, partnership income and limited-company accounts can all be treated differently.
This guide explains how buy-to-let mortgages work for dentists, the difference between buying personally and through a limited company, and what changes when you become a portfolio landlord.
At a glance
- A buy-to-let mortgage is primarily assessed using the expected rental income from the property.
- Some lenders also require a minimum personal income or consider personal affordability alongside the rent.
- Dental income can be evidenced differently depending on whether you are employed, an associate, a partner or a practice owner.
- Buying personally and buying through a limited company can lead to different mortgage, tax, legal and administrative considerations.
- Four or more mortgaged buy-to-let properties will normally place you within the portfolio-landlord definition.
- The lowest advertised rate is not always the most suitable or lowest-cost option.
Why dentists invest in property
Some dentists use property investment to create an additional source of income or build assets outside their dental practice.
A buy-to-let property may provide rental income and the potential for capital growth, but neither
is guaranteed. Property values can fall, tenants may leave and unexpected repairs can affect cash flow.
Before buying, it is important to consider:
- The deposit and purchase costs
- Expected rent
- Mortgage payments
- Tax
- Letting and management fees
- Maintenance and repairs
- Insurance
- Licensing or regulatory requirements
- Allowance for vacant periods
- The effect on your personal and business finances
The mortgage should be assessed as part of the wider investment rather than in isolation.
How buy-to-let mortgages are assessed
A buy-to-let mortgage is designed for a property that will be rented to tenants rather than occupied as your main home.
The expected rent is central to the lender’s assessment. Lenders commonly apply an interest coverage ratio, sometimes called an ICR, to test whether the rent provides sufficient cover for
the mortgage interest.
The lender may calculate this using:
- The expected monthly rent
- A stressed interest rate
- A required rental-cover percentage
- The applicant’s tax position
- Whether the application is personal or through a company
- The mortgage product and repayment method
The calculation varies between lenders. It should not be assumed that every lender will use the same stress rate or require the same level of rental cover.
Some lenders also set a minimum personal-income requirement. Others have no fixed minimum but still review employment, business income, credit commitments or the applicant’s ability to manage periods without rent.
Where the rent alone does not meet the lender’s calculation, selected lenders may consider personal disposable income to support the application. This is commonly known as top slicing.
Does being a dentist affect the application?
Your profession can provide useful context, particularly where you have a clear career path and sustainable income. It does not, however, remove the lender’s normal rental, affordability or credit requirements.
The main issue is how your income is structured and evidenced.
A dentist could be:
- Employed through PAYE
- Working for several practices
- A sole trader
- A partner in a dental practice
- A business owner or associate trading through a limited company
- Receiving a combination of dental and non-dental income
Each arrangement can require different documents and may produce a different assessment.
Associate dentists
Dental associates are not all paid or structured in the same way. Some are self-employed, while others may operate through a limited company.
A self-employed associate might evidence income using:
- Recent practice pay schedules or remittance statements
- Personal bank statements
- An associate agreement
- SA302 tax calculations
- Tax Year Overviews
- Final accounts, where available
Some lenders require tax documents or accounts. Selected lenders may consider recent remittance payments and annualise the income where the associate has a clear clinical history and the wider application is strong.
This can be useful for a dentist who has recently moved from their foundation year into associate work. It is not a guaranteed route, and the lender will still consider the stability of the role, deductions, existing commitments and sustainability of the income.
If you have a shorter trading history, read our guide to getting a mortgage with less than two years of accounts.
Practice owners and partners
A practice owner’s income assessment depends on the legal structure of the business.
Sole trader
A lender will commonly review net profit using tax calculations, Tax Year Overviews and, where required, final accounts.
The latest year or an average of recent years may be used, depending on the lender and the direction of the figures.
Partnership
The lender will usually consider the dentist’s share of partnership profit. Partnership accounts, tax documents and evidence of the agreed profit share may be required.
Recent performance, sustainability and significant business commitments may also be reviewed.
Limited company
Many lenders assess salary and dividends. Other lenders may consider salary plus the applicant’s share of company profit, subject to ownership, sustainability, liquidity and their individual criteria.
Company profit and retained earnings are not the same. The lender will normally need to understand the relevant accounting figures and whether relying on the profit is sustainable for the business.
Buying personally or through a limited company
A buy-to-let property can be purchased in a personal name or through a limited company. Many
company applications use a Special Purpose Vehicle, or SPV, established specifically for property investment.
Neither structure is automatically better.
Buying in a personal name
Potential considerations include:
- A wider or different choice of lenders and products
- Mortgage interest relief for individual residential landlords being restricted to a basic-rate tax reduction
- Rental profit forming part of the individual’s taxable income
- The effect of the income on the investor’s wider tax position
- Personal ownership of the property and mortgage
Buying through an SPV
Potential considerations include:
- The company may generally account for qualifying mortgage interest as a business expense
- Corporation Tax applies to company profits
- Further tax may arise when money is taken from the company
- Mortgage rates and fees can differ from personal buy-to-let products
- Directors or shareholders may be required to provide personal guarantees
- Additional legal, accounting and administrative work may be involved
- The company’s SIC codes and ownership structure must be acceptable to the lender
A limited company can suit some investors, particularly those intending to retain profit or build a
portfolio, but it is not automatically more tax-efficient overall.
The right structure depends on your tax position, investment plans, need for income and future
exit strategy. Mortgage, tax and legal advice should be taken before committing to a purchase
structure.
Buying through an existing trading business
It may be possible to purchase a buy-to-let property through an existing dental practice or other
trading company. However, fewer lenders accept trading companies than property-investment SPVs, and the application is likely to require a more detailed assessment.
The lender may review:
- The nature and history of the trading business
- Company accounts and recent performance
- Existing borrowing and financial commitments
- Balance-sheet strength and available liquidity
- Directors, shareholders and ownership percentages
- The company’s SIC codes
- The deposit and source of funds
- The proposed property and expected rent
- Any existing security held over the company’s assets
- Whether personal guarantees will be required
Existing business borrowing should be checked carefully. A bank or another lender may already
hold a debenture or charge over the company’s assets, or the existing finance agreement may
restrict the company from granting further security.
Holding an investment property inside a dental trading company also brings the property and the
practice under the same legal entity. This means the property may be exposed to risks associated with the trading business, while liabilities connected with the property could affect the practice.
It can also make a future sale or restructuring of the dental business more complicated. A potential purchaser of the practice may not want to acquire the investment property, and separating it from the company later could have tax, legal and funding consequences.
The addition of property-investment activity may also affect the company’s tax position and
eligibility for certain business reliefs. Rental profits, mortgage interest, a future property sale and
the eventual extraction of funds from the company all need to be considered.
An alternative may be for the trading company to provide funds to a separate property SPV through an acceptable intercompany loan. This keeps the property in a separate company, but the arrangement must be acceptable to the mortgage lender and properly documented by the accountant and conveyancer.
Buying through the trading business is therefore not simply an alternative version of an SPV application. The most appropriate structure depends on the existing company, its finance arrangements, future plans for the dental practice and the tax and legal consequences.
Independent accounting, tax and legal advice should be obtained before the company commits
to the purchase or transfers any funds.
Deposits and loan-to-value
Many buy-to-let products require a deposit of at least 25%, although products at higher and lower loan-to-values may be available.
A larger deposit can:
- Increase the number of available lenders
- Help the rental calculation
- Reduce the amount borrowed
- Affect the interest rate and product range
- Provide a greater buffer against changes in property value
The deposit could come from:
- Personal savings
- Sale proceeds
- A gift, where acceptable to the lender
- Equity released from another property
- Company funds or an intercompany arrangement, subject to lender, tax and legal requirements
The lender and conveyancer will need a clear source-of-funds trail. Where money is being taken from a dental practice or transferred between companies, advice should be obtained before the funds are moved.
Releasing equity from your home also requires careful consideration. It increases the borrowing
secured against the property in which you live and may increase the total interest paid.
Stamp Duty and other purchasing costs
A buy-to-let purchase involves more than the deposit.
Possible costs include:
- Stamp Duty Land Tax
- Mortgage product and valuation fees
- Legal fees
- Survey costs
- Broker fees, where applicable
- Company set-up or accounting costs
- Refurbishment and safety work
- Insurance
- Letting-agent fees
In England and Northern Ireland, purchases of additional residential properties will usually attract rates of Stamp Duty Land Tax that are five percentage points above the standard residential rates.
Different property taxes apply in Scotland and Wales. Company purchases and transactions involving several properties can also require separate advice.
The precise liability depends on the transaction, so a solicitor or tax adviser should confirm the amount before contracts are exchanged.
Portfolio-landlord rules
A borrower with four or more mortgaged buy-to-let properties will normally be treated as a portfolio landlord.
The count can include properties held:
- In the applicant’s sole name
- Jointly with another person
- Through some company structures, depending on the lender’s policy
When assessing a portfolio landlord, the lender will normally review both the new transaction and the existing portfolio.
Information requested may include:
- Property addresses
- Current values
- Mortgage balances
- Monthly rents
- Ownership details
- Existing lenders
- Overall loan-to-value
- Aggregate rental cover
- Assets and liabilities
- Available liquidity
- A business plan or investment strategy
Portfolio policy varies. A portfolio acceptable to one lender may fall outside another lender’s criteria because of its size, overall leverage, property types, concentration in one location or rental performance.
Preparing a complete and consistent property schedule before applying can reduce delays and
repeated requests for information.
Limited companies, SPVs and intercompany deposits
Many lenders prefer an SPV established specifically for property investment with acceptable
SIC codes.
Where the deposit comes from a connected trading company, the lender and conveyancer will
normally require a clear and properly documented source-of-funds trail showing:
- Where the money originated
- How it was transferred
- Whether it is a loan, dividend or another type of payment
- The shareholders and relationship between the companies
- Any repayment terms
- Whether the arrangement is acceptable to all parties
The lender may also require board minutes, loan agreements, company bank statements or confirmation from the accountant.
An intercompany loan does not automatically make the application acceptable. The mortgage
lender will consider the relationship between the companies, whether the funds need to be repaid and the effect of that commitment on the borrowing company.
The conveyancer must also be satisfied with the arrangement and any requirements concerning
source of funds, beneficial ownership and company authority.
Funds should not be transferred solely for a mortgage application without first obtaining appropriate accounting and legal advice.
Can a dentist obtain a buy-to-let mortgage with a shorter income history?
Potentially.
Some lenders may consider a shorter history where the applicant has:
- A clear dental career path
- Recent and consistent remittance pay
- An established associate agreement
- Previous employment in the same profession
- One year of accounts or tax documents
- A suitable deposit
- A strong wider financial position
The property must still meet the lender’s rental assessment.
A shorter history does not remove the need for evidence. It changes which evidence may be acceptable and which lenders are worth considering.
Common problems with dentist buy-to-let applications
Assuming the rent is the only consideration
Although the rent is central to the decision, the lender may also review personal income, experience, credit history and the wider portfolio.
Choosing a lender before checking the income criteria
A competitive product may be unsuitable if the lender does not accept associate remittance statements or assess business-owner income in the required way.
Using inconsistent figures
Remittance statements, bank statements, accounts and tax documents should present a consistent picture. Differences should be understood and explained before submission.
Changing the business structure shortly before applying
Moving from sole trader to limited company, altering shareholdings or changing how income is
drawn can affect the evidence available. Some lenders recognise business continuity, while
others may treat the new structure differently.
Choosing an ownership structure based only on tax
Tax is important, but so are mortgage pricing, administration, access to funds and future plans. A
structure that appears tax-efficient in one area can create costs elsewhere.
Underestimating purchase and running costs
Stamp Duty, mortgage fees, legal work, repairs, compliance costs and vacant periods should be
included in the investment calculation.
Making several applications without a clear strategy
A mortgage application can involve a credit search. Repeated applications over a short period
may complicate the case, so lender criteria should be checked before proceeding.
How Sarah Grace Mortgages can help
We understand that dental income does not always fit one standard category.
Before recommending a mortgage, we review:
- How your dental income is structured
- The evidence available
- The expected rent
- Deposit and source of funds
- Personal or limited-company ownership
- Existing properties and mortgages
- Lender rental calculations
- Rates, fees and early repayment charges
- Your intended portfolio strategy
We then compare lenders whose criteria fit the property, ownership structure and supporting evidence.
The aim is to present a clear, consistent application and set realistic expectations before it is
submitted.
Read more about our approach to buy-to-let mortgages and mortgages for dentists, or contact
us for an initial discussion.
Frequently asked questions
Do dentists need two years of accounts for a buy-to-let mortgage?
Not always. Many lenders ask self-employed applicants for two years of figures, but some
consider one year. Selected lenders may also accept recent associate remittance statements in
suitable cases.
The available route depends on how you are paid, your clinical history and the lender’s criteria.
What deposit is required?
A 25% deposit is common, but it is not a universal minimum. The deposit required depends on
the property, expected rent, applicant, ownership structure and lender.
Products at higher loan-to-values may be available, although the choice and pricing can be more restricted.
Is buy-to-let assessed only on rental income?
Rental income is central to most buy-to-let assessments, but it is not always the only consideration.
The lender may require minimum personal income, review the applicant’s financial position or
use personal affordability to support a rental shortfall where its criteria allow.
Should I buy personally or through an SPV?
That depends on your tax position, plans for the rental income, portfolio strategy and future intentions.
An SPV is not automatically more tax-efficient once mortgage costs, Corporation Tax, extraction
of funds, administration and the eventual sale are considered. Mortgage advice should be combined with independent accounting, tax and legal advice.
What is an SPV?
An SPV is a limited company established for a defined purpose. In buy-to-let lending, it usually
refers to a company set up to buy and hold investment property.
Lenders commonly check the company’s SIC codes, directors, shareholders and source of
deposit. Personal guarantees are also frequently required.
Can an existing dental trading company buy a rental property?
Potentially, but fewer lenders accept trading companies than property-investment SPVs.
The lender may review the dental business, company accounts, existing borrowing, ownership,
available funds and any security already held over the company’s assets. Tax and legal advice
should also be obtained because holding the property inside the practice company can affect
risk, future restructuring and the eventual sale of the business.
Can I use funds from my dental practice as the deposit?
Possibly, but the method matters.
The lender, conveyancer and accountant may need to establish whether the funds are being paid as salary, dividends, a business loan or an intercompany transfer. Tax and legal advice should be obtained before moving the money.
When do I become a portfolio landlord?
You will normally be treated as a portfolio landlord when you have four or more mortgaged buy-
to-let properties.
The lender is then likely to assess the performance and leverage of the entire portfolio as well
as the new property.
Can I buy an HMO or holiday let?
Potentially, but these properties can involve different lending criteria.
The lender may consider licensing, planning status, property layout, management experience
and how the rent is calculated. Holiday-let income may be assessed using historical figures,
seasonal projections or a valuer’s estimate.
Speak to Sarah Grace Mortgages
Whether you are buying your first rental property, refinancing an existing investment or
expanding a portfolio, we can help you understand how lenders may assess the property and
your dental income.
Book a free, no-obligation consultation or call 0203 6333 888.
Important information
This article provides general information and does not constitute personal mortgage, investment, tax or legal advice. Tax treatment depends on individual circumstances and may change.
Most buy-to-let mortgages are not regulated by the Financial Conduct Authority. Consumer buy- to-let mortgages may be subject to a separate regulatory framework.
Your property may be repossessed if you do not keep up repayments on your mortgage.
Mortgage availability is subject to status, valuation, credit checks, lender criteria and full underwriting.
Sarah Grace Mortgages Limited is authorised and regulated by the Financial Conduct Authority.
FCA reference number 771962. Registered in England and Wales, company number 09839864.
