If you want to reduce your tax bill as a UK landlord, this guide is for you. If you own rental property in the UK, you are almost certainly paying more tax than you need to. This guide covers the allowable expenses, reliefs, and planning strategies available to landlords in 2026/27 — whether you own one buy-to-let or a growing portfolio. It is written for individual landlords, couples who own property jointly, and anyone considering whether a limited company structure makes sense.
- How to Reduce Your Tax Bill as a UK Landlord: Allowable Expenses
- Mortgage interest and the finance cost restriction
- Replacement of domestic items relief
- The £1,000 property allowance
- Joint ownership and transferring income between spouses
- Furnished holiday lets — what changed in April 2025
- Should you use a limited company?
- Capital gains tax on property disposals
- Making Tax Digital for landlords
- Record-keeping and self assessment
- Frequently asked questions
How to Reduce Your Tax Bill as a UK Landlord: Allowable Expenses
The starting point for reducing your tax bill is making sure you claim every expense you are entitled to. Rental income is taxed after deducting allowable expenses, so every pound you miss claiming costs you real money. For the full list of what HMRC allows, see HMRC’s guidance on paying tax on rental income.
What counts as an allowable expense?
An allowable expense must be incurred wholly and exclusively for the purposes of renting out the property. The main categories are:
- Letting agent fees and management charges
- Buildings and contents insurance premiums
- Repairs and maintenance (not improvements — see below)
- Ground rent and service charges on leasehold properties
- Accountancy fees and professional subscriptions
- Advertising costs to find tenants
- Council tax, water, and utility bills paid by the landlord
- Legal fees for renewing a lease of fewer than 50 years or chasing unpaid rent
- Travel to inspect the property or collect rent — at HMRC’s approved mileage rate (check the latest HMRC guidance for the current rate)
Repairs vs improvements
This distinction matters. Replacing a broken boiler like-for-like is a repair — it is fully deductible. Upgrading to a higher-spec boiler may be treated partly as an improvement and therefore a capital cost. Capital costs are not deductible against rental income, but they do reduce your capital gains tax liability when you sell. Keep invoices that clearly describe the work done.
Mortgage interest and the finance cost restriction
One of the biggest ways to reduce your tax bill as a UK landlord involves how you handle mortgage interest. Since April 2020, individual landlords can no longer deduct mortgage interest directly from rental income. Instead, you get a tax credit equal to 20% of your finance costs. This hits higher and additional rate taxpayers hard because the relief is capped at the basic rate regardless of your marginal rate.
How the restriction works in practice
Say your rental profit before finance costs is £30,000 and your mortgage interest is £12,000. You are taxed on the full £30,000. You then receive a tax credit of £2,400 (20% of £12,000) to reduce your tax bill. If you pay tax at 40%, you are effectively getting relief at only 20% — losing £2,400 of relief compared to the old system.
This restriction applies to individuals and partnerships but not to limited companies. It is one of the main reasons landlords consider incorporating their portfolio.
Replacement of domestic items relief
If you let a furnished or partly furnished residential property, you can claim the replacement of domestic items relief. This relief is another practical way to reduce your tax bill as a UK landlord each year. This covers the cost of replacing items such as:
- Sofas, beds, and other furniture
- White goods like washing machines and fridges
- Carpets and curtains
- Crockery and cutlery
You can only claim for a like-for-like replacement, not the initial purchase. If you upgrade — say from a standard to a premium model — you deduct the cost of an equivalent replacement, not the actual amount spent on the upgrade.
You cannot claim this relief alongside the property allowance (see below) — you must choose one or the other.
The £1,000 property allowance
Every individual receives a £1,000 property allowance in 2026/27. If your total gross rental income is £1,000 or less, you do not need to declare it or pay any tax. If your income exceeds £1,000, you can either deduct actual expenses or simply deduct the £1,000 allowance — whichever gives you a better result.
In practice, the allowance is only useful for landlords with minimal expenses, such as someone renting out a parking space. Most landlords with a standard buy-to-let will have actual expenses that exceed £1,000.
Joint ownership and transferring income between spouses
If you own a property jointly with your spouse or civil partner, HMRC assumes you split the income 50/50 by default. However, if the beneficial ownership is held in unequal shares, you can elect to split income in line with actual ownership using Form 17.
Why this matters
If one partner pays tax at 40% and the other pays at 20%, shifting a greater proportion of rental income to the lower earner can save a significant amount of tax each year. The income split must reflect the actual ownership split — you cannot simply allocate income however you like unless the ownership genuinely reflects that split.
To change the ownership split, you would need to transfer a share of the property, which may trigger stamp duty land tax and capital gains tax depending on the circumstances. Take professional advice before restructuring ownership.
Furnished holiday lets — what changed in April 2025
The furnished holiday let (FHL) regime was abolished from 6 April 2025. Properties previously treated as FHLs are now taxed as ordinary residential lettings. This means:
- Mortgage interest relief is now restricted to 20% basic rate credit, as with other residential lettings
- Capital allowances on furniture and equipment are no longer available
- Profits from FHLs no longer count as relevant UK earnings for pension contribution purposes
- Business asset disposal relief (formerly entrepreneurs’ relief) no longer applies on sale
If you previously owned FHL properties, review your tax position for 2026/27 with an accountant. The loss of capital allowances and the change to mortgage interest relief could substantially increase your tax bill compared to previous years.
Should you use a limited company?
Using a limited company to hold rental properties is increasingly popular, particularly for higher rate taxpayers building a portfolio. The main reasons are:
Corporation tax rates
In 2026/27, companies with profits under £50,000 pay corporation tax at 19%. Profits above £250,000 are taxed at 25%, with marginal relief between those thresholds. Compare this to 40% or 45% income tax for higher and additional rate individual landlords.
Full mortgage interest deductibility
Companies can still deduct mortgage interest in full as a business expense. This is the single biggest advantage for landlords with significant borrowing.
The drawbacks
Incorporation is not automatically the right answer. Consider the following:
- Transferring existing properties into a company typically triggers capital gains tax and stamp duty land tax — unless specific partnership incorporation relief applies
- Extracting profits from a company as dividends is taxed at 10.75% (basic rate), 35.75% (higher rate), or 39.35% (additional rate) in 2026/27, with only a £500 dividend allowance before tax applies
- Mortgage options for limited companies are more restricted and often carry higher rates
- Administrative costs are higher — you will need annual accounts, corporation tax returns, and potentially payroll if you pay yourself a salary
The company route works best for landlords reinvesting profits rather than drawing them out, or those building a portfolio from scratch without existing properties to transfer.
Capital gains tax on property disposals
When you sell a residential rental property, any gain above your annual exempt amount is subject to capital gains tax (CGT). In 2026/27, the annual exempt amount is £3,000. Gains on residential property are taxed at check the latest HMRC guidance for current figures — check the latest HMRC guidance to confirm the current rates apply to your specific circumstances.
Ways to reduce CGT on property
- Use your annual exempt amount: You cannot carry it forward, so plan disposals to make use of it each year if you are selling multiple properties.
- Claim all capital costs: Solicitor fees on purchase and sale, stamp duty on purchase, and any improvement works that were not already claimed against income all reduce the gain.
- Transfer before sale: If your spouse or civil partner pays a lower rate of CGT, a transfer before disposal can reduce the overall tax. Transfers between spouses are CGT-neutral at the time of transfer.
- Private residence relief: If the property was ever your main home, you may be entitled to partial private residence relief. The final nine months of ownership are always treated as a period of occupation regardless of whether you lived there.
Note that CGT on UK residential property must be reported and paid within 60 days of completion. This is separate from your annual self assessment return.
Making Tax Digital for landlords
Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) starts in April 2026 for self-employed people and landlords with total income above £50,000. From April 2027, the threshold drops to £30,000.
Under MTD for ITSA, you will need to keep digital records and submit quarterly updates to HMRC using compatible software. This is a significant change from filing one annual tax return. If your rental income crosses the threshold, start preparing now — set up a digital record-keeping system and consider whether you need Xero training to manage your records efficiently.
Good digital records also make it easier to track expenses throughout the year and ensure nothing is missed when your tax return is prepared.
Record-keeping and self assessment
Solid bookkeeping underpins every tax-saving strategy on this list. If you cannot evidence your expenses, HMRC can disallow them on enquiry. Keep:
- Bank statements showing rental income received
- Invoices and receipts for all expenses
- Mortgage statements showing interest charged each year
- Records of capital expenditure including solicitor completion statements
- A mileage log if you claim travel costs
Rental income must be declared on your self assessment tax return each year. The deadline for online filing is 31 January following the end of the tax year. Missing the deadline results in an automatic £100 penalty, with further penalties if the return remains outstanding.
If your rental profits are more complex — for example, you own multiple properties, have overseas income, or are navigating a company structure — using management accounts throughout the year helps you understand your position before the filing deadline arrives rather than after.
The tax rules for landlords have changed substantially over the past decade, and further changes are coming with MTD for ITSA. Getting the basics right — claiming all allowable expenses, understanding the mortgage interest restriction, structuring ownership correctly, and keeping proper records — can make a meaningful difference to what you pay. If your rental income is growing, or you are considering expanding your portfolio, speaking to a specialist accountant sooner rather than later will save you more than the cost of the advice.
Frequently asked questions
Can I deduct mortgage payments from my rental income?
No. Individual landlords cannot deduct mortgage capital repayments at all. Mortgage interest is restricted — you receive a 20% basic rate tax credit rather than a full deduction. This restriction does not apply to limited companies, which can still deduct interest as a business expense.
Do I need to declare rental income if it is under £1,000?
No. If your total gross rental income in a tax year is £1,000 or less, the property allowance covers it and you do not need to declare it. Above £1,000, you must register for self assessment and file a tax return.
Is it worth putting my rental property into a limited company?
It depends on your circumstances. The main benefits are the lower corporation tax rate and full mortgage interest deductibility. The main drawbacks are the CGT and stamp duty cost of transferring existing properties, restricted mortgage availability, and higher running costs. It is most beneficial for higher rate taxpayers building a portfolio who plan to reinvest profits rather than draw them out immediately.
Can I claim for time I spend managing my rental properties?
No. HMRC does not allow you to claim a deduction for the value of your own time. You can claim professional management fees paid to a letting agent, but not an equivalent amount for managing the property yourself.
What is the CGT reporting deadline for property sales?
You must report and pay any capital gains tax on UK residential property within 60 days of completion. This is a standalone requirement separate from your annual self assessment return. Missing this deadline results in interest and penalties.
How will Making Tax Digital affect me as a landlord?
If your total income from self-employment and property exceeds £50,000, MTD for ITSA applies to you from April 2026. You will need to keep digital records and submit quarterly updates to HMRC instead of a single annual return. The threshold reduces to £30,000 from April 2027. Start preparing your record-keeping systems now to avoid a last-minute scramble.
Areas we cover
NDCA works with clients across the following regions. If you’re based in one of these areas, our team can help with the accounting issues covered in this article.
