Tax remains one of the most significant financial considerations for any private landlord, and the 2026/27 tax year brings no relief from the pressures that have been building since the phased introduction of Section 24 mortgage interest relief restrictions. Understanding how your letting structure affects your overall tax position has become, if anything, more important than understanding market rent levels.
This article examines the key tax considerations for landlords in 2026/27, including the Section 24 impact, allowable expenses, and the way in which the income structure of a guaranteed rent Corporate Lease Agreement interacts with HMRC’s treatment of rental income. It is intended as an informational overview rather than professional tax advice, and landlords with complex situations should always seek guidance from a qualified tax adviser familiar with property income.
Note: This article provides general information about the tax framework for landlords and is not professional tax advice. Always consult a qualified accountant or tax adviser for guidance specific to your circumstances.
Section 24: The Continuing Challenge
The restriction on mortgage interest relief introduced under Section 24 of the Finance Act 2015 remains the single most consequential tax change for private landlords in recent years. Since the full implementation of Section 24 in the 2020/21 tax year, individual landlords who hold properties in their own name can no longer deduct mortgage interest as a business expense. Instead, they receive a basic rate tax credit of twenty percent of their finance costs.
The impact of this change falls most heavily on higher and additional rate taxpayers. A landlord paying income tax at forty percent who previously deducted mortgage interest at their marginal rate now pays tax on rental profit calculated before the interest deduction, receiving only a twenty percent credit in return. For landlords with heavily leveraged portfolios, this can result in a tax liability that exceeds their actual net cash profit from the rental activity.
It is worth noting that Section 24 applies to individual landlords and partnerships holding residential property. Landlords who hold property within a limited company structure are not subject to Section 24, as corporation tax rules allow full deduction of finance costs as a business expense. This has driven a significant number of landlords to incorporate or to acquire new properties through a company vehicle, though this decision involves other considerations including capital gains tax on transfer and the cost and complexity of operating a corporate structure.
Rental Income and Allowable Expenses in 2026/27
Regardless of letting structure, landlords are taxed on their net rental income after allowable expenses. The key allowable expenses for a traditionally let residential property include:
- Letting agent fees and management charges.
- Maintenance and repair costs (but not improvements, which are capital expenditure).
- Buildings and contents insurance premiums.
- Ground rent and service charge payments.
- Council tax and utility bills where the landlord, not the tenant, is responsible.
- Professional fees including accountancy and legal costs directly related to the letting.
- Advertising and tenant-finding costs.
- A proportion of mortgage interest, for which a twenty percent tax credit applies (not a full deduction) for individual landlords.
Expenses that are capital in nature, such as extension work or significant improvements, are not deductible against rental income but may be available as capital expenditure when calculating capital gains tax on eventual disposal.
How Guaranteed Rent Affects the Tax Calculation
The income received under a guaranteed rent Corporate Lease Agreement is treated by HMRC as rental income. The landlord receives rent under a commercial lease with Elliot Leigh, and that income is subject to income tax (or corporation tax where the landlord holds through a company) in the same way as rental income from any other letting.
The key difference from a tax perspective is not in the classification of the income but in the cost structure against which it is set. Under a guaranteed rent arrangement, many of the expenses that are deductible under a traditional let, such as agent management fees and day-to-day maintenance costs, are absorbed by Elliot Leigh rather than incurred by the landlord. This means the allowable expense deductions available to the landlord may be lower under a guaranteed rent arrangement, though this is offset by the fact that those costs are also not incurred.
The simplification of the income stream under a guaranteed rent arrangement also has a practical administrative benefit. Rather than tracking multiple categories of income and expenditure across different tenancies and periods, the landlord receives a single monthly payment from Elliot Leigh under a single commercial lease. This simplifies record-keeping and the preparation of self-assessment tax returns.
Capital Gains Tax Considerations
Landlords who eventually sell their rental properties face capital gains tax on any gain above their annual exempt amount, currently 3,000 pounds per individual for the 2024/25 tax year onwards. Residential property gains are taxed at eighteen or twenty-four percent for basic and higher rate taxpayers respectively following the changes introduced in the October 2024 Autumn Budget.
The letting structure, whether traditional or guaranteed rent, does not in itself affect the capital gains position on disposal. What matters from a CGT perspective is the original acquisition cost, the enhancement expenditure over the ownership period, and the sale proceeds. Landlords who have improved their properties during the ownership period should ensure they maintain full records of capital expenditure to support their CGT calculations on eventual sale.
Private Residence Relief can reduce or eliminate a CGT charge where the landlord previously occupied the property as their main residence, subject to the letting relief rules and the final period exemption.
Stamp Duty Land Tax and Portfolio Considerations
The three percent SDLT surcharge on second and subsequent residential property purchases, which has applied since 2016, continues to apply in 2026/27. This remains a material entry cost for portfolio landlords acquiring new properties and is one of the factors that has reduced new investment activity at the margin.
For landlords already holding properties and considering how to structure their ongoing letting activity, SDLT is not a current concern, but it is relevant to any expansion strategy. The guarantee rent model does not involve a property purchase, so there is no SDLT implication for landlords simply choosing to switch their letting structure to a Corporate Lease Agreement.
Income Tax and the Guaranteed Rent Threshold
For landlords who are currently in the basic rate income tax band but whose total income including rental income approaches or exceeds the higher rate threshold, the income certainty provided by a guaranteed rent scheme has tax planning relevance. If the guaranteed rent amount is known and fixed for the duration of the lease, it becomes easier to plan other income and expenditure to manage overall tax liability.
Landlords in this position may benefit from discussing with their accountant whether the fixed and predictable nature of guaranteed rent income creates opportunities for better income management that would not be available with the more variable income profile of a traditionally let property.
The Tax Position for Company Landlords
Where a landlord holds property through a limited company, the income from a Corporate Lease Agreement is subject to corporation tax at the current rate of twenty-five percent for companies with profits above 250,000 pounds, or the small profits rate of nineteen percent for companies with profits up to 50,000 pounds, with marginal relief between these thresholds.
Company landlords are not subject to Section 24 and can deduct finance costs in full. The simplicity of a guaranteed rent income stream can align well with the compliance requirements of corporate property ownership, where accurate and complete profit calculations are required for corporation tax returns.
Company landlords who are considering taking properties out of company ownership, perhaps to access personal capital, should seek specific advice on the tax implications, as the extraction of property from a company structure can trigger corporation tax, income tax, and potentially SDLT charges depending on the structure of the transaction.
Practical Record-Keeping
Whatever the letting structure, good record-keeping remains essential. HMRC requires landlords to maintain records sufficient to support their self-assessment returns, and property income is one of the areas where HMRC compliance activity is relatively active. Landlords should retain:
- Copies of all lease and tenancy agreements.
- Bank statements showing rent receipts and expense payments.
- Invoices and receipts for all allowable expenditure.
- Evidence of capital expenditure to support CGT calculations.
- Mortgage statements confirming interest paid where relevant.
Under a guaranteed rent arrangement, the simplified income structure makes this record-keeping task more manageable, as the primary income record is a single monthly payment confirmed by the Corporate Lease Agreement.
