Airbnb Tax UK 2026: What You Owe HMRC on Short-Let Income

Quick answer

If you're Airbnb-ing a spare room in your own home, the first £7,500/year is tax-free under Rent-a-Room Relief — you don't even need to file Self Assessment. If you're letting a second property or investment property, you must declare any income above the £1,000 Property Income Allowance and pay income tax at your marginal rate. The big 2025 change: Furnished Holiday Letting status was abolished on 6 April 2025, taking away the capital allowances and favourable CGT treatment that short-let landlords had relied on for years.

What changed on 6 April 2025: FHL abolished

This is the single biggest change for UK Airbnb hosts in recent memory. The Furnished Holiday Letting (FHL) regime — which gave short-term rental properties preferential tax treatment — was abolished from 6 April 2025. From that date, all short-let income is treated as ordinary property income, the same as a standard long-term tenancy.

What short-let landlords lost on 6 April 2025:

If you were running your Airbnb property as an FHL and making decisions based on those tax advantages — especially capital allowances on furniture or BADR on a future sale — you need to revisit your strategy now.

Which relief applies to you?

Rent-a-Room Relief: main home only

If you let a furnished room inside your main residence (your home, where you actually live), Rent-a-Room Relief applies:

• First £7,500/year: completely tax-free, no Self Assessment required.
• Above £7,500/year: you have two options — (a) pay tax on the excess over £7,500, or (b) use the actual expenses method and pay tax on gross income minus actual costs, whichever gives you the lower tax bill.

The key restriction: this relief applies to your main home only. A second property, a flat you own but don't live in, or an investment property does not qualify — regardless of how many nights you stay there.

Property Income Allowance: all properties

The £1,000 Property Income Allowance applies to all property income across all properties:

• Total property income £1,000 or less: no tax, no Self Assessment.
• Total property income above £1,000: must declare via Self Assessment. You can deduct the £1,000 allowance OR actual expenses — whichever is more beneficial. You cannot claim both.

Note: if you're letting your main home via Airbnb and Rent-a-Room Relief is more valuable (which it usually is, given the £7,500 threshold), claim that instead of the £1,000 allowance.

Airbnb in your main home: worked example

Scenario: Emma lets her spare double bedroom via Airbnb. She earns £1,200/month for 8 months = £9,600/year. She lives in the property full-time.

Emma's actual costs for the room — extra utilities, laundry, toiletries — come to roughly £400. Under the expenses method, her taxable profit would be: £9,600 − £400 = £9,200 minus £7,500 = £1,700, taxed at 20% = £340. So the expenses method saves her £80 — marginal. For most occasional hosts, the straight excess-over-£7,500 method is simpler.

If Emma earned below £7,500, she would owe no tax and would not need to file Self Assessment.

Airbnb on a second property: worked example

Scenario: David owns a two-bed flat he lets short-term via Airbnb. He earns £24,000/year gross. His mortgage interest is £6,000/year. He is a higher-rate (40%) taxpayer.

Income and expenses:

David cannot deduct the full £6,000 mortgage interest. Under Section 24, he gets a 20% basic-rate tax credit on the interest instead:

If David had been able to deduct the full mortgage interest (as under the pre-2020 rules, and as FHL landlords effectively could), his taxable profit would have been £16,800 − £6,000 = £10,800, taxed at 40% = £4,320. Section 24 costs him an extra £1,200/year in tax — and that figure grows with the mortgage balance.

Allowable expenses for second-property Airbnb (post-FHL)

Since FHL status is gone, short-let landlords use the same expense rules as ordinary residential landlords:

The key loss post-FHL abolition: capital allowances. Previously, FHL landlords could claim 100% first-year capital allowances (or Annual Investment Allowance) on furniture, fittings and equipment — a significant upfront deduction when refurbishing a property. This is no longer available. The replacement domestic items relief only covers like-for-like replacements, not initial fit-out.

HMRC already has your data

Since January 2024, all digital platforms including Airbnb, Vrbo and Booking.com are required to report earnings of UK-based hosts to HMRC under the OECD Model Rules for Reporting by Digital Platforms (DAC7). Airbnb reports both the number of days let and the gross income received.

HMRC then cross-references this against Self Assessment filings. If you have not declared Airbnb income and HMRC's data shows significant letting income, you are likely to receive an enquiry. The safest approach is:

1. Declare all income above the relevant threshold proactively.
2. If you have undeclared prior years, use HMRC's Let Property Campaign voluntary disclosure to come forward — penalties are lower for voluntary disclosure (typically 0-30%) versus prompted disclosures (30-100%).

Penalties for failing to notify HMRC of a new taxable income source can reach 30% of unpaid tax (first offence, prompted) or up to 100% for deliberate concealment.

Self Assessment: when do you need to file?

Use SA105 (the property income supplementary page) — not SA103 (self-employment). Airbnb income from residential property is property income, not trading income, even if you provide services like cleaning.

VAT: when does it apply?

Most Airbnb hosts will never need to register for VAT. The threshold is £90,000/year across all business activities (2025/26). If your combined Airbnb income plus any other trading activity exceeds £90,000 in any rolling 12-month period, you must register.

There is a distinction between residential short-lets (typically exempt from VAT) and commercial hospitality (standard-rated, 20%). Providing hotel-like services — daily room service, breakfast included, reception desk — can push you toward the commercial end. Most standard Airbnb hosts are on the residential side. If you're unsure, take advice before crossing the threshold.

Council Tax vs business rates: the 140-day rule

In England, if you let a property for 140 or more days in a calendar year, and it is available to let for at least 140 days, the property switches from Council Tax to business rates. In Wales the threshold is 70 days actually let (and 252 days available to let). Scotland has similar provisions.

The effect is usually beneficial: most small short-let properties qualify for Small Business Rate Relief (SBRR), which reduces the bill to zero if rateable value is below £12,000. But you must notify your local council of the change in use.

Hosts who cross the threshold but don't notify the council risk retrospective business rates liability plus Council Tax — a double charge until the correct classification is applied.

Capital Gains Tax on disposal

When you sell an Airbnb property (other than your main home, which benefits from Private Residence Relief), CGT applies:

• CGT rates (since 30 October 2024): 18% (basic-rate band) and 24% (higher-rate band) on residential property.
• Annual exempt amount: £3,000 (2025/26 and 2026/27).
• No Business Asset Disposal Relief since FHL abolition. BADR was one of the most valuable features of FHL status — 10% CGT on disposal. That's gone.
• 60-day reporting to HMRC required online for any UK residential property disposal with a CGT liability.

For a property bought before the FHL abolition and sold now, the full period of ownership is assessed under the new rules. There is no grandfathering of historic FHL periods for CGT relief purposes.

Worked example — CGT on a former FHL property:

David (from our earlier example) bought the property in 2019 for £180,000 and sells in 2026 for £260,000.

Pre-abolition, the same gain as an FHL disposal eligible for BADR would have been taxed at 10% = £6,700 — a saving of £9,380 that no longer exists.

Three costly mistakes Airbnb hosts make

Mistake 1: Assuming FHL rules still apply

The most common error in 2025-26. Many hosts — and some accountants — have not fully adjusted for the April 2025 abolition. Claiming capital allowances on a post-April-2025 return, or planning a sale expecting BADR, will result in incorrect tax calculations and a likely penalty.

Mistake 2: Not declaring because income is below £7,500

The £7,500 Rent-a-Room threshold only applies to your main home. If you're letting a second property or investment property and earn £2,500/year, you must declare it. The relevant threshold for second properties is £1,000 (Property Income Allowance), not £7,500.

Mistake 3: Deducting the full mortgage interest

Post-FHL, short-let landlords — like all residential landlords — are subject to Section 24. You do not deduct mortgage interest from your rental profit. You receive a 20% tax credit on the interest paid. Higher-rate taxpayers pay more tax as a result, often significantly so on highly-leveraged properties.

2026/27 tax year rates at a glance

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Sources

• HMRC: Rent a Room Scheme
• HMRC: Tax on income from letting property
• HMRC: Furnished Holiday Lettings — abolition from 6 April 2025
• HMRC: Let Property Campaign
• HMRC: Replacement of Domestic Items Relief
• gov.uk: DAC7 digital platform reporting rules
• VOA: Council Tax — self-catering and holiday lettings