Investing in buy to let (BTL) properties is a popular way to generate passive income and build wealth over time. However, there’s a lot to consider before diving in. Whether you’re a seasoned investor or a first-time landlord, this guide covers everything you need to know about buy to let.

What Is Buy to Let?
Buy to let (BTL)refers to purchasing a property specifically to rent it out to tenants. As a landlord, you earn income through monthly rent payments and you may also benefit from property value increases over time.
Why Invest in Buy to Let?
Steady Income: Rental income can provide a stable monthly cash flow.
Capital Growth: Over time, property values may increase, offering long-term gains but there is also a risk of decrease.
Portfolio Diversification: Property investment can diversify your financial portfolio.
Tax Advantages: Certain expenses, such as mortgage interest and maintenance costs, may be deductible.
Key Considerations Before Investing in Buy to Let
1. Research the Market
- Demand: Look for areas with strong rental demand, such as those near universities, transport links, or major employers.
- Property Type: Decide between student accommodation, family homes, or apartments for professionals.
- Rental Yields: Calculate the annual rental income as a percentage of the property’s value to ensure a profitable investment.
2. Financing Your Buy to Let
Most landlords use a buy to let (BTL) mortgage to fund their purchase. Key features include:
- Higher Deposits: Typically 25–40% of the property value.
- Interest-Only Option: Many buy to let mortgages allow you to pay just the interest, reducing monthly outgoings.
- Affordability Criteria: Lenders assess whether rental income covers 125–145% of the mortgage payments.
3. Tax Implications
- Stamp Duty: Buy to let properties incur an additional 5% Stamp Duty surcharge in the UK. Link to government calculator here.
- Income Tax: Rental income is subject to income tax and higher-rate taxpayers face steeper bills.
- Capital Gains Tax (CGT): If you sell the property for a profit, CGT applies.
- Tax Relief: Limited tax relief is available for mortgage interest payments.
Owning Buy to Let Through a Limited Company
In recent years, many landlords have opted to purchase buy to let properties through a limited company structure. Here’s why this approach is worth considering:
Benefits of a Limited Company Structure
- Tax Efficiency:
- Rental income is taxed at the corporation tax rate (currently 19%-25% in the UK as of 2024), which may be lower than personal income tax rates.
- Mortgage interest can be fully deducted as a business expense, unlike individual ownership where relief is capped.
- Limited Liability:
If something goes wrong, your personal assets are protected since the property is owned by the company, not you personally. However be aware that you may be asked to sign a personal guarantee by a lender. - Estate Planning:
Shares in the company can be passed down to heirs more easily than transferring property directly, potentially reducing inheritance tax liabilities.
Drawbacks of a Limited Company Structure
- Higher Costs:
Setting up and managing a limited company involves additional costs, such as accountancy fees. - Limited Mortgage Options:
Fewer lenders offer buy-to-let mortgages for limited companies, and interest rates are generally higher. - Capital Gains Tax on Transfer:
If transferring personally owned properties into a company, you’ll incur CGT and Stamp Duty.
Who Should Consider This Option?
- Landlords with multiple properties who want to scale their portfolio.
- Higher-rate taxpayers looking for tax efficiency.
- Investors planning to hold properties long-term and pass them on to future generations.
Pro Tip: Consult a tax advisor and mortgage specialist to assess if a limited company structure suits your investment goals.
Managing Your Buy-to-Let Property
1. Becoming a Landlord
Responsibilities include:
- Ensuring the property meets health and safety standards.
- Protecting tenant deposits in a government-approved scheme.
- Staying compliant with legal requirements like energy performance certificates (EPCs).
2. Hiring a Letting Agent
Letting agents can handle tasks such as finding tenants, collecting rent, and managing maintenance, though their fees typically range from 10–15% of the monthly rent.
3. Handling Void Periods
Plan for months when the property may be vacant. Keep an emergency fund to cover mortgage payments and maintenance costs during these times.
Risks to Consider
1. Market Fluctuations
Property values and rental demand can decline due to economic factors.
2. Non-Paying Tenants
Dealing with rent arrears or eviction processes can be costly and time-consuming.
3. Legislative Changes
Governments frequently update laws affecting landlords, such as tax changes or stricter rental regulations.
4. Income Tax
It is your responsibility to declare to HMRC, any income from buy-to-let property, as this is subject to
income tax. For some people the income received could result in a higher tax rate becoming payable.
Tips for Successful Buy-to-Let Investment
Understand Your Target Tenants: Tailor your property and rental terms to the needs of your ideal renters.
Maintain the Property: Regular maintenance keeps tenants happy and avoids costly repairs later.
Review Your Mortgage Regularly: Check if switching lenders could save you money on interest rates.
Plan for the Long Term: Buy-to-let works best as a medium- to long-term investment strategy.
FAQs About Buy-to-Let
Q: Do I need a special mortgage for buy-to-let?
Yes, buy-to-let mortgages are specifically designed for rental properties and have different terms than residential mortgages.
Q: Can I live in my buy-to-let property?
No, buy-to-let mortgages are intended for properties that are rented out and also usually can’t be rented to a family member.
Q: Is buy-to-let still profitable in 2024?
Despite rising interest rates and regulatory changes, buy-to-let can still be a profitable investment if carefully planned and managed.
How Mortgage Links Can Help
At Mortgage Links, we specialise in helping landlords secure the best buy-to-let mortgage deals—whether for personal ownership or through a limited company. Our expert advisors can guide you through the pros and cons of each option to ensure your investment aligns with your financial goals.
Mortgage Links does not provide personal tax advice. You should therefore seek advice from a suitably qualified accountant or solicitor about the following taxes: Stamp Duty Land Tax, Capital Gains Tax and Income Tax.
👉 Contact us today for a free consultation and start building your buy-to-let empire.