Published 26 June 2026 by Prop-Pocket Team
Learn what expenses can landlords claim, which costs are disallowed, and how to keep clear records for simpler tax reporting and better control.
A rental property can look profitable on paper right up until tax time. That is usually when landlords discover the gap between money leaving the bank and costs they can actually set against rental income. If you are asking what expenses can landlords claim, the short answer is plenty - but not everything, and the detail matters.
For UK landlords, allowable expenses are generally the day-to-day running costs of letting out a property. The purpose of the cost matters more than the label on the invoice. If the expense is wholly and exclusively for the rental business, it will often count. If it improves the property beyond its original condition, it may need to be treated differently. That distinction is where many records start to fall apart.
The core rule is straightforward. You can usually claim costs that relate directly to managing, maintaining and financing your rental property business. That includes routine operational spending, but it does not automatically include capital improvements or private costs.
In practice, the most common allowable expenses fall into a few clear categories: finance-related costs, repairs and maintenance, property running costs, professional fees and admin. The challenge is not only knowing what belongs in each category, but also keeping enough evidence to support it later.
This is one of the areas that causes the most confusion. Individual landlords in the UK cannot simply deduct all mortgage interest from rental income in the old way. Instead, mortgage interest and certain finance costs are usually dealt with through a tax credit system. That means the cash cost still affects profitability, but the tax treatment is more restricted than many landlords expect.
You should still track mortgage interest carefully, along with arrangement fees, broker fees and other finance costs connected to the rental property. Even where the tax treatment is not a straight deduction, the numbers matter for accurate reporting and for understanding the property’s real performance. If you only look at rent received minus basic bills, you can end up with a misleading view of yield and cash flow.
Repairs are usually claimable. If you fix a leaking roof, replace broken locks, patch damaged plaster or service the boiler, those costs are normally part of maintaining the property in rentable condition.
The line gets finer when work improves the property rather than restoring it. Replacing a worn-out kitchen with a broadly equivalent new one is often treated as a repair. Upgrading a basic kitchen to a high-spec redesign with extra units and premium finishes may move into capital expenditure. The invoice may arrive from the same contractor, but the tax treatment can be very different.
That is why landlords need records that do more than show a payment amount. A clear note on what was done and why can save time later, especially when an accountant has to separate repairs from improvements.
If you pay utility bills, council tax or service charges on behalf of tenants, those costs can often be claimed as rental business expenses. This is particularly relevant for HMOs, inclusive-rent arrangements and void periods where the landlord remains responsible.
The same logic applies to ground rent and certain communal charges on leasehold properties. If the cost relates to the running of the let property, it is commonly allowable. If part of the bill relates to your own use, that personal portion should be excluded.
Landlord insurance is usually an allowable expense. That may include buildings insurance, contents cover for landlord-owned items, public liability insurance and rent guarantee policies where relevant.
What matters is that the policy relates to the rental business rather than personal cover. If you are insuring furnishings in a furnished let, for example, the premium is tied to the business use of those items.
Letting agent fees are normally claimable, including tenant-find services, management charges, rent collection fees and inventory costs where they are part of day-to-day letting.
Professional fees can also be allowable, but context matters. Accountancy fees for preparing rental accounts or tax returns linked to the property business are generally straightforward. Legal fees are more mixed. Legal costs for renewing a tenancy or chasing rent arrears may be allowable, while legal fees for buying a property are usually capital in nature and not treated as a routine revenue expense.
This is one of those areas where broad assumptions create problems. Two invoices from a solicitor can sit in completely different tax categories depending on what the work was for.
Landlords often overlook smaller operational expenses. Postage, phone usage, stationery, software subscriptions and bookkeeping tools may all be claimable where they are used for the rental business.
Travel can also be allowable if it is wholly for managing the property - visiting the property for inspections, meeting contractors or handling tenancy issues, for example. The key is keeping a proper record of the journey and its purpose. A vague card payment at a petrol station months later is not much help when you are reviewing a year’s costs.
For landlords running multiple properties, these smaller costs add up quickly. More importantly, they often reveal how much admin time the portfolio is really consuming.
Knowing what does not qualify is just as useful as knowing what does. The most common non-allowable costs are capital expenses, private costs and anything not directly connected to the rental business.
Capital expenditure usually includes buying the property itself, major extensions, loft conversions and significant upgrades that improve the asset beyond simple replacement. These costs may still matter for capital gains tax purposes later, but they are not normally deducted from rental income in the same way as repairs.
Personal expenses are also excluded. If you combine a trip to inspect a property with a family visit, only the business element may be relevant, and sometimes it is not worth claiming at all unless the separation is clear. The same applies to home costs that are not genuinely connected to running the property business.
There are also specific rules around replacing domestic items in furnished properties. In some cases, relief may apply when replacing items such as sofas, beds or white goods, but the claim is not a free pass for upgrades. The replacement basis and any improvement element need to be considered carefully.
Allowable expenses are only useful if you can evidence them. That sounds obvious, but this is exactly where landlords lose control. Invoices sit in email threads, repair notes live in text messages, mortgage statements are downloaded and forgotten, and by January everything has to be rebuilt from memory.
That approach does not just create stress. It increases the risk of under-claiming, over-claiming or misclassifying costs. It also makes it harder to see which properties are actually performing well.
A better system is to track each cost against the property, category and date as it happens. If a boiler repair, EICR, insurance renewal and mortgage payment all hit in the same month, you should be able to see the impact immediately. That level of visibility is useful for tax reporting, but it is even more useful for decision-making.
For landlords managing more than one property, this is where software starts to earn its place. A platform like Prop-Pocket can help keep costs, compliance deadlines and financial reporting in one place, which is far more reliable than trying to piece together year-end figures from spreadsheets and bank statements.
Some expenses sit in a grey area. Redecoration after a tenancy is often allowable if it is routine maintenance. Redecoration as part of a larger improvement project may not be. Replacing part of a structure is often a repair, but rebuilding or materially upgrading it may count as capital.
Mixed-use costs need extra care too. If your mobile phone, car or home office is used partly for the rental business and partly for personal reasons, only the business proportion should be claimed. That requires a reasonable basis for apportionment, not guesswork.
This is where landlords benefit from being disciplined rather than optimistic. If a cost could be questioned, record the purpose clearly and keep the supporting paperwork. It is far easier to justify a claim with a proper audit trail than to reconstruct one later.
The real question is not only what expenses can landlords claim, but whether those expenses are being tracked in a way that protects profit and simplifies reporting. Landlords who stay on top of this monthly tend to make better decisions than those who only look at the numbers once a year.
Treat every property like a business unit. Record income promptly, log expenses against the right category, separate repairs from improvements, and keep copies of invoices and certificates together. That gives you cleaner numbers for your accountant, better visibility over cash flow, and fewer surprises when tax deadlines arrive.
If you can see exactly where your money is going, you are in a much stronger position to protect margins, plan works sensibly and run the portfolio with confidence rather than guesswork.
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