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If you’re running a property business, one of the most important — and misunderstood — questions is:

“What expenses can I actually claim as allowable?”

Getting this right can make the difference between paying thousands in unnecessary tax or keeping more of your hard-earned income. But there’s a catch: HMRC’s rule is that expenses must be “wholly and exclusively” for the purpose of your rental business.

Let’s unpack what that means — and what you can actually claim.

Understanding HMRC’s “Wholly and Exclusively” Rule

This means the cost must be:

  • Incurred entirely for your rental business
  • Not mixed with personal use

If you spend money partly for business and partly for personal reasons, you might not be able to claim the full cost — or any of it.

Person reviewing receipts for property expenses

Common Allowable Property Expenses

Here are the most common (and often missed) expenses you can claim:

1. Mortgage Interest (for personally owned properties)

  • You can’t deduct full mortgage interest anymore if you own property in your name
  • But you still get a 20% tax credit on your interest payments

Close-up of mortgage documents and calculator

2. Letting Agent Fees

  • Fully allowable, including monthly management fees and tenant-finding services

3. Repairs and Maintenance

  • Fixing broken boilers, roof repairs, plumbing
  • Note: improvements (like adding an extension) are capital costs, not allowable against income

Tradesperson repairing a boiler

4. Insurance

  • Landlord insurance, building insurance, contents insurance (for furnished properties)

5. Accountancy Fees

  • Related to your rental income — fully allowable

6. Travel and Subsistence

  • If your property isn’t nearby and you need to travel for inspections or maintenance, your travel and accommodation costs can be allowable.

Example: You stay overnight to inspect an out-of-town property — that hotel bill and mileage count.

Landlord driving to inspect rental property

7. Utilities and Council Tax

  • If the property is vacant or bills are in your name (e.g., HMOs), these are deductible

8. Advertising and Marketing

  • Promoting a property for rent on portals like Rightmove or Zoopla

9. Legal and Professional Fees

  • Eviction costs, lease agreements, professional advice
  • Note: legal fees on property acquisition are capital and not allowable against rental income

10. Phone and Office Costs

  • Business phone usage, home office percentage (if you’re managing the portfolio yourself)

What’s NOT Allowable?

  1. Your Own Time — Sweat equity isn’t deductible
  2. Property Improvements — New kitchens, loft conversions = capital, not revenue
  3. Private Travel or Dual Purpose Expenses — You can’t claim fuel for a family holiday to view one property

Smart Tip: Track Everything Digitally

Use apps like Xero, FreeAgent, or QuickBooks to:

  • Snap receipts
  • Track expenses by property
  • Export straight to your accountant

You’ll reduce missed claims and accounting headaches.

Real-World Example: Missed Overnight Costs

A landlord in Manchester needed to visit her buy-to-let in Bristol every quarter. She stayed overnight, dined locally, and claimed nothing — assuming it “wasn’t allowed.”

She missed £800 in expenses annually. That’s around £320 in tax relief — gone.

If she’d logged those trips and claimed under travel and subsistence, they would’ve been fully allowable.

Person looking frustrated over tax paperwork

Get Your Property Tax Setup Right

Property tax doesn’t need to be confusing — but missing allowable expenses means overpaying HMRC.

Our property tax specialists help:

  • Identify and claim all allowable expenses
  • Avoid mistakes that trigger HMRC scrutiny
  • Track and plan deductions across your portfolio

Further Reading:

HMRC Property Income Manual – Allowable Expenses

Allowable property expenses for UK landlords explained
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