An estate agent’s single biggest controllable expense is the car: viewings, valuations, and vendor visits mean high business mileage, and how that mileage is claimed sets the tone for the whole return. Around it sit marketing spend and a home-office element. Get the vehicle method and its records right and the rest is ordinary bookkeeping. All figures below are sourced from HMRC guidance in the Sources section.
The vehicle method: mileage versus actual costs
There are two ways to claim a car, and the choice is close to permanent per vehicle. HMRC’s simplified mileage rate gives 45p per mile for the first 10,000 business miles and 25p for each mile after that [1] . The alternative is to claim the business-use proportion of actual running costs (fuel, insurance, servicing, repairs) plus capital allowances on the vehicle.
The mileage rate is simplest for a high-mileage agent, and it already bundles in the cost of buying and running the car, so you do not separately claim depreciation [1] . Actual costs can give a larger deduction for an expensive vehicle but require a full record of every cost and a robust business-use split. Either way, a contemporaneous mileage log is the evidence the claim rests on, and it is the thing most agents under-record. The methods and current rates are set out in the claim mileage in the UK guide.
Marketing, advertising, and styling
After the car, marketing is the defining cost of the trade. Portal listings, professional photography, floor plans, drone and video, for-sale boards, brochures, and online advertising are all allowable where incurred wholly for the business. Property styling or staging paid for to present a listing is deductible as a cost of making the sale, distinct from any personal spending. The discipline is to tie each marketing cost to the campaign or instruction it relates to, so the deduction is evidenced and the agency can see what its marketing actually returns.
Home office and the rest of the ledger
Most agents do admin, calls, and listing preparation from home, claimable via HMRC’s simplified flat rate or actual-cost apportionment, as covered in the claim home office in the UK guide. Subscriptions to portals and CRM software, professional indemnity insurance, and professional body fees are allowable, and because they recur monthly it pays to code them consistently so the fixed cost base is visible. Client hospitality, by contrast, is business entertainment and is not deductible, a point worth remembering when an agent takes a vendor to lunch.
Where ExpenseFlow fits
An agent’s ledger is a stream of fuel, marketing, and software receipts, often captured on the move between viewings. ExpenseFlow captures each receipt and supplier invoice from a phone photo or forwarded email, extracts the line detail and VAT, and syncs the transaction into Xero or QuickBooks Online with the source image attached for the six-year record-keeping window. It keeps the marketing and running-cost receipts that support the deduction together with the transaction, flags vehicle running costs as needing a business-use apportionment rather than a 100% claim, and its cross-border checks flag any overseas-supplier invoice that carries no UK VAT. It does not keep your mileage log, choose the mileage-versus-actual method, or set the business-use percentage: those stay with you or your accountant. What it removes is the receipt pile that builds up in a car over a busy quarter.
Common mistakes
- Switching between the mileage rate and actual costs for the same vehicle, which is not allowed [1] .
- Claiming the mileage rate and also claiming depreciation, when the rate already covers the cost of the car [1] .
- Failing to keep a contemporaneous mileage log, leaving the largest deduction unevidenced.
- Treating client hospitality as an allowable cost when business entertainment is not deductible.
References
Sources and references
Every figure, threshold, deadline, and regulatory rule cited in this guide is traceable to an official government publication. URLs are reproduced in full so any reader can verify the claim at source. Numbers are subject to change at each fiscal event; we re-check this list at every quarterly refresh of this guide.
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[1]
HMRC · Simplified expenses if you're self-employed: vehicles
https://www.gov.uk/simpler-income-tax-simplified-expenses/vehicles-45p first 10,000 business miles, 25p thereafter; flat rate covers buying and running the car (no separate depreciation); method fixed per vehicle.
Retrieved 2026-06-15