Accounting

The Ultimate “Allowable Expense Checklist” (2026/27 Edition)

· 2 min read
The Ultimate “Allowable Expense Checklist” (2026/27 Edition)

The Ultimate “Allowable Expense Checklist” (2026/27 Edition)

Welcome to the ultimate “cheat sheet,” property owners! As your Chartered Accountant, I know that the difference between a profitable year and a taxable headache often comes down to the expenses you didn’t know you could claim.

With Making Tax Digital (MTD) officially launching in April 2026 for landlords with a combined income over £50,000, the stakes for accurate record-keeping have never been higher. HMRC isn’t just looking for your totals anymore; they’re looking for your digital proof.

Here is your customized checklist, categorized by the type of property you manage, to ensure you never miss a deduction.


🏠 For Single-Let (Standard Residential)

Best for: Long-term tenancies in houses or flats.


🏘️ For HMOs (Houses in Multiple Occupation)

Best for: Shared houses, student lets, and professional house-shares.


💻 For the “Kitchen Table” Landlord (Admin & Office)

Regardless of property type, don’t forget your “invisible” business costs.


Comparison Table: 2025/26 vs. 2026/27

The tax rates for property income are officially separated from April 2027, but for the 2026/27 tax year, the main change is the MTD Mandation.

Category 2025/26 Tax Year 2026/27 Tax Year
Mortgage Interest 20% Tax Credit 20% Tax Credit
Personal Allowance £12,570 £12,570
MTD Reporting Optional (Pilot) Mandatory (If income >£50k)
FHL Status Abolished (Standard rules apply) Abolished (Standard rules apply)
Basic Rate Tax 20% 20%

⚠️ A Final Note on Section 24

Remember, your mortgage interest is not an allowable expense that reduces your taxable profit. Instead, you get a tax credit equal to 20% of your interest.

Example: If your rental profit is £20,000 and your mortgage interest is £5,000, you pay tax on the full £20,000 first, then subtract £1,000 (20% of £5k) from the resulting tax bill.

HMRC Link: For the definitive list of what you can and cannot claim, always refer to the HMRC PIM2000 Manual.

AccTek accountant — expert in sole trader and limited company accounts
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Godwin Pinto ACA (ICAI) is the founder of AccTek and a member of ICPA, with 20+ years of experience in accounting and tax for contractors, startups and SMEs. Previously at PwC.

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