Last updated: March 2026
Expanding your property portfolio can be a powerful way to build long-term financial security, but is now a good time to invest in buy to let?
In today’s market, changing house prices, rising rents and evolving tax rules all play a role in determining whether buy to let is the right choice. While there are clear opportunities, there are also risks that need to be carefully considered.
In this guide, we explore the key factors affecting buy to let investments and what landlords should consider before making a decision.
What is buy to let?
Buy to let refers to purchasing a property with the intention of renting it out to tenants. This can provide a regular stream of rental income, as well as potential long-term capital growth.
Most landlords use a buy to let mortgage, which is typically interest-only and comes with higher deposit requirements than residential mortgages.
This means your monthly payments usually cover the interest only, with the full loan repaid at the end of the term.
Is now a good time to invest in buy to let?
There is no single answer – it depends on both market conditions and your personal financial position. Below are the key factors to consider.
The property market
The UK property market has seen fluctuations in recent years, with changes in house prices, transaction levels and buyer demand.
For investors, this can create opportunities. Buying at the right time may allow you to secure a property at a more favourable price, particularly in a slower market where sellers may be more open to negotiation.
However, property values can also move in the opposite direction. A short-term decline in value may impact your return if you plan to sell in the near future.
Rental demand and income
Demand for rental properties remains strong in many areas of the UK, with rents increasing in response to limited supply.
This can be beneficial for landlords, as higher rental income may help offset rising costs. Strong tenant demand can also reduce void periods, ensuring more consistent income.
When assessing an investment, it’s important to consider:
- Expected monthly rental income
- Local demand for rental properties
- Long-term yield potential
Mortgage rates and borrowing costs
Interest rates have risen significantly in recent years, increasing the cost of borrowing for landlords.
Higher mortgage rates can reduce profit margins, particularly for highly leveraged investments. Choosing the right mortgage product – whether fixed or variable – is essential when planning your investment.
Careful financial planning is key to ensuring your investment remains sustainable, even if borrowing costs fluctuate.
Tax considerations for landlords
Tax plays a major role in determining the profitability of a buy to let investment.
Rental income and tax returns
Rental income must be declared through your self assessment tax return and landlords are taxed based on their total income.
Understanding allowable expenses and reliefs is essential to ensure you are not overpaying tax.
Mortgage interest relief
Tax rules around mortgage interest have changed in recent years. Instead of deducting full interest costs, landlords now receive a basic rate tax reduction.
This can increase the tax burden for higher rate taxpayers, making tax planning even more important.
Stamp duty land tax (SDLT)
When purchasing additional residential property, you may be required to pay higher rates of Stamp Duty Land Tax.
This increases the upfront cost of investment and should be factored into your overall financial planning.
Capital gains tax on property
When you sell a rental property, you may be liable for capital gains tax on any profit made.
Understanding how gains are calculated and what reliefs are available can make a significant difference to your final return.
Limited company vs personal ownership
Some landlords choose to hold property within a limited company structure, which can offer different tax treatment.
However, this approach comes with additional responsibilities and costs. Seeking professional advice can help you determine the most suitable structure.
Costs and responsibilities to consider
Beyond purchase and tax, buy to let comes with ongoing costs and obligations.
These may include:
- Maintenance and repairs
- Landlord insurance
- Letting agent fees
- Compliance with safety regulations
- Periods without tenants
A successful investment requires both financial stability and a long-term commitment.
Are you ready to invest in buy to let?
External factors such as market conditions are important — but your personal circumstances matter just as much.
Before investing, consider:
- Your available deposit (typically 20–25%)
- Your ability to cover costs during void periods
- Your long-term investment goals
- Your tolerance for risk
Taking a strategic approach will help ensure your investment is both sustainable and profitable.
Speak to a tax adviser before you invest
Buy to let can be a valuable long-term investment, but getting the structure right from the outset is essential.
At Huddart Accountants, we support landlords and property investors with expert tax advice and practical guidance.
We’ll help you understand your tax position, reduce liabilities and ensure your investment is set up for long-term success.