Owning rental property in the UK has become significantly more complex from a tax perspective over the past decade. A series of legislative changes, from the restriction of mortgage interest relief to the introduction of additional Stamp Duty Land Tax on second properties — has fundamentally altered the financial landscape for landlords. What once felt like straightforward passive income now demands careful, proactive tax planning.
At Livingstones Accountants, we work with landlords across the UK. Our clients range from individuals letting a single property alongside their main employment to portfolio landlords managing dozens of units. In this article, we explain the key tax challenges facing landlords today, what specialist accounting support delivers, and why professional advice pays for itself many times over.
The Tax Landscape for UK Landlords Has Changed Significantly
A decade ago, property income tax was relatively straightforward. Landlords deducted their mortgage interest and other costs from rental income, paid tax on the profit, and that was broadly it. That simplicity no longer exists.
The most significant change came with the phased restriction of mortgage interest relief, completed in April 2020. Landlords can no longer deduct mortgage interest as a business expense. Instead, they receive a basic rate tax credit of 20% on finance costs. For higher and additional rate taxpayers, this change substantially increased their effective tax bill, particularly following the restriction of mortgage interest relief, in some cases turning an apparently profitable portfolio into one generating a net tax loss after financing costs.
Alongside this, several other changes have reshaped the landscape:
- The additional 3% Stamp Duty Land Tax surcharge on second property purchases remains in place, adding significant upfront cost to portfolio expansion
- Capital Gains Tax on residential property disposals must now be reported and paid within 60 days of completion - a tight deadline that catches many landlords off guard
- The annual tax on enveloped dwellings (ATED) applies to properties held in companies above certain value thresholds
- Making Tax Digital for Income Tax Self-Assessment will require landlords with rental income above £50,000 to maintain digital records and submit quarterly updates from April 2026
Each of these changes creates both compliance obligations and planning opportunities, particularly in light of the latest 2025/26 tax changes for landlords. A specialist accountant identifies both.
Should You Hold Property Personally or Through a Limited Company
This is the question we hear most frequently from landlords, and the answer is genuinely complex. It depends on your current income, your tax rate, your long-term intentions for the portfolio, and how you plan to exit eventually.
For higher and additional rate taxpayers, holding property through a limited company can be tax-efficient. Companies pay Corporation Tax on profits at 25% (for profits above £250,000) rather than income tax at 40% or 45%. They can also deduct mortgage interest in full as a business expense – something individuals can no longer do. Furthermore, retained profits within a company can grow and compound without triggering personal tax until dividends are drawn.
However, incorporation is not straightforward for an existing portfolio. Transferring personally held properties into a company triggers Capital Gains Tax and Stamp Duty Land Tax on each property at the point of transfer — unless specific partnership incorporation relief applies. The upfront tax cost can be substantial.
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For landlords building a portfolio from scratch, or those with no existing properties to transfer, buying through a company from the outset avoids this issue entirely. However, company ownership creates its own complications. Mortgage availability is more limited and rates are typically higher. Extracting profits requires careful planning to remain tax-efficient. And selling the company rather than the properties adds a layer of complexity to any exit.
This is precisely the kind of decision that requires careful modelling with a specialist accountant. We work through the numbers with our landlord clients in detail before they commit to any structure.
Allowable Expenses: What Landlords Can and Cannot Claim
One of the most consistent ways a specialist accountant adds value is by ensuring landlords claim every legitimate expense against their rental income. Many landlords under-claim – either through lack of awareness or because they are uncertain what qualifies.
The following expenses are allowable against rental income for UK landlords:
- Letting agent fees and management charges
- Maintenance and repair costs - note that improvements are not deductible against income, though they may reduce Capital Gains Tax on disposal
- Buildings and contents insurance premiums
- Ground rent and service charges on leasehold properties
- Accountancy and legal fees directly connected to the letting
- Council tax and utility bills paid by the landlord during void periods
- The cost of replacing domestic items such as appliances and furnishings under the Replacement of Domestic Items Relief
Mortgage interest no longer qualifies as a deductible expense, but the 20% tax credit on finance costs must still be calculated and claimed correctly. Getting this wrong — either by under-claiming the credit or by incorrectly treating interest as a direct expense — produces an inaccurate tax position.
Capital Gains Tax Planning for Landlords
Capital Gains Tax on residential property represents one of the largest potential tax liabilities a landlord faces. The current CGT rates on residential property are 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers, applied to the gain above the annual exempt amount.
However, several reliefs and planning strategies can reduce this liability significantly. The timing of disposals matters – spreading sales across two tax years can use two annual exempt amounts. Where a property was at some point your main residence, Private Residence Relief may reduce or eliminate the CGT entirely. Losses on other assets can be set against property gains in the same year.
For landlords holding property in a company, the CGT position differs. Companies pay Corporation Tax on gains rather than CGT. This can be advantageous or disadvantageous depending on the overall tax position and how profits will eventually be extracted.
Practical tip:
If you are considering selling a rental property, speak to us before you exchange contracts — not after. Several CGT planning strategies are only available before disposal. Acting early gives you options. Acting after the fact leaves you with the bill.
The Let Property Campaign: Coming Clean on Undisclosed Income
HMRC’s Let Property Campaign offers landlords who have not declared rental income the opportunity to bring their tax affairs up to date voluntarily. Voluntary disclosure through the campaign typically results in significantly lower penalties than waiting for HMRC to open an investigation.
We regularly assist landlords in making Let Property Campaign disclosures. We calculate the correct tax due for each year, identify any mitigating circumstances, and present the disclosure to HMRC in the most favourable light. If you have undisclosed rental income from previous years, acting promptly is always in your interest.
How Livingstones Accountants Helps Landlords
Our team works with landlords at every stage – from those letting their first property to established portfolio investors planning their long-term exit strategy. We provide proactive, year-round support rather than annual accounts alone.
Our services for landlords include:
- Tax planning and preparation - preparing your Self-Assessment return accurately, claiming all allowable expenses, and calculating your finance cost tax credit correctly
- Business advisory - advising on personal versus company ownership, portfolio structuring, and long-term exit planning
- Bookkeeping services - maintaining clear records of rental income and expenditure across all properties throughout the year
- Capital Gains Tax planning - modelling the CGT implications of disposals and identifying strategies to reduce your liability before you sell
- Corporate finance - supporting landlords who wish to incorporate their portfolio, acquire new properties, or restructure their financing arrangements
- Cash flow management - helping you plan around the 60-day CGT payment deadline and Self-Assessment liabilities so that tax payments never catch you unprepared
- VAT services - advising on VAT where relevant, particularly for commercial property and mixed-use portfolios
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Our services start from just £15 per month, with packages tailored to the size and complexity of your portfolio.
Frequently Asked Questions
Many single-property landlords manage their own Self-Assessment returns. However, even for a single property, a specialist accountant will typically identify allowable expenses you may have missed, ensure your finance cost credit is calculated correctly, and flag any CGT planning opportunities on disposal. The cost of advice is usually modest relative to the savings it generates.
Since October 2021, landlords selling a residential property must report the gain and pay any CGT due within 60 days of completion. This applies even if you file an annual Self-Assessment return. Missing this deadline triggers automatic interest charges and penalties. We assist clients with these returns as part of our standard service for landlords selling properties.
Transfers between spouses and civil partners are exempt from CGT. They are treated as taking place at a value that produces neither a gain nor a loss. Where one spouse pays tax at a lower rate, transferring a share of the property can reduce the overall tax on rental income. However, the transfer must be genuine — HMRC looks carefully at arrangements that appear to lack commercial reality.
HMRC expects landlords to retain records of all rental income, all allowable expenses with supporting receipts, mortgage statements, and details of any capital expenditure. Records must be kept for at least five years from the Self-Assessment filing deadline for the relevant tax year. Good record-keeping throughout the year makes your annual return straightforward and protects your expense claims.
The Let Property Campaign is an HMRC scheme that allows landlords with undisclosed rental income to come forward voluntarily and settle their liability at reduced penalty rates. If you have rental income you have not declared, voluntary disclosure is almost always preferable to waiting for HMRC to investigate. We handle Let Property Campaign disclosures regularly and can manage the entire process on your behalf.
Conclusion
Property taxation in the UK has become genuinely complex. Landlords who approach it without specialist support risk both over-paying tax through missed reliefs and under-paying through compliance errors. Either outcome is costly.
At Livingstones Accountants, we help landlords navigate this landscape with confidence. Whether you own one property or twenty, we provide the expert guidance that ensures your portfolio is structured efficiently, your returns are accurate, and your tax liabilities are managed proactively. Contact us today for a free, no-obligation consultation.
