Quick answer: Both landlords and sole traders can deduct expenses incurred “wholly and exclusively” for their business or letting, but the key difference is finance costs: a sole trader deducts business loan interest in full, while a landlord gets only a basic-rate (20%) tax credit on residential mortgage interest.
If you’re both ,and many people are ,knowing the difference keeps your MTD reporting accurate. Here’s the comparison.
What’s the shared principle?
For both, an expense must be wholly and exclusively for the purpose of the business or property letting. Personal spending doesn’t qualify, and mixed-use costs (like a phone used for work and home) must be apportioned to the business element only.
What do sole traders typically claim?
- Office and workspace costs, including a portion of home-working costs
- Travel and mileage for business
- Equipment, software and subscriptions
- Professional fees, marketing and training
The full picture is in allowable expenses for the self-employed and the freelancer-specific view in bookkeeping for freelancers.
What do landlords typically claim?
- Letting agent and management fees
- Repairs and maintenance ,but not improvements (see repairs vs improvements)
- Insurance, ground rent and service charges
- Finance costs, with residential mortgage interest treated as a basic-rate tax credit rather than a straight deduction
The detailed list is in landlord allowable expenses.
What’s the biggest structural difference?
The mortgage-interest restriction is the headline divergence. A sole trader deducts business loan interest in full against profit; a landlord gets only a basic-rate credit for residential mortgage interest. Misunderstanding this is one of the most common ,and expensive ,landlord errors, especially for higher-rate taxpayers who assume full relief.
Why does this matter under MTD?
If you have both income types, they’re reported separately in MTD, each with its own expense categories. Mixing them up skews both your figures and your tax. See MTD for sole traders and MTD for landlords.
How does CleanBooks AI keep them straight?
CleanBooks AI categorises transactions to the right income stream and applies the correct tax treatment automatically ,so trading expenses and property expenses don’t bleed into each other. Anything ambiguous is flagged for your review, and your live tax estimate reflects the proper treatment of each, including the mortgage interest credit.
Claim correctly, every time. Sort your expenses with CleanBooks AI.
