UK Airbnb & Short-Term Rental Tax Calculator 2026/27
Compare three ways to be taxed on your short-term rental income: Rent-a-Room (room in your home), Furnished Holiday Lettings (FHL), or Standard Residential Letting. Includes Airbnb fees, cleaning, Council Tax and Section 24 mortgage restrictions.
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Rent-a-Room vs FHL vs Standard Letting: Which Saves Most Tax?
UK short-term rental hosts face a critical choice: how to structure their tax affairs. The three main options have dramatically different outcomes:
| Scheme | Best For | Tax Treatment | Mortgage Interest | CGT Relief |
|---|---|---|---|---|
| Rent-a-Room | Letting a room in your own home | £7,500 tax-free, then taxed as normal income | N/A (it's your home) | Full Private Residence Relief |
| FHL | Whole property, high turnover, tourist areas | Trading business: full interest relief, pension contributions allowed | Fully deductible | BADR, Rollover, Gift Holdover |
| Standard | Whole property, long-term or mixed lets | Property income: Section 24 restricts interest relief | 20% tax credit only | None (except PRR if former home) |
The Rent-a-Room Trap
Many hosts default to Rent-a-Room because it sounds simple. But if your gross income exceeds £7,500 and your actual expenses are higher than the allowance, you are overpaying tax. You can opt out of Rent-a-Room and claim actual expenses instead — but you must tell HMRC by 31 January after the tax year ends.
Example: You earn £15,000 letting a spare room. Under Rent-a-Room, your taxable profit is £7,500 (£15,000 − £7,500 allowance). If your actual expenses (extra utilities, cleaning, insurance) are £9,000, opting out reduces your taxable profit to £6,000 — saving you £300 in tax at the basic rate.
Furnished Holiday Letting Advantages
FHL status is the "gold standard" for tax but comes with strict rules:
- Availability: Available for letting at least 210 days/year
- Actual lettings: Let for at least 105 days/year
- No long stays: No single guest for more than 31 continuous days (except emergencies)
- Furnished: Must provide furniture for normal occupation
If you meet these, you can claim Capital Allowances on furniture, fixtures and equipment — something standard residential landlords cannot do. You also get full mortgage interest relief and can make pension contributions from FHL profits, which is not allowed for standard rental income.
Council Tax vs Business Rates for Short-Term Lets
This is the hidden cost that destroys Airbnb profitability. Since April 2023, many UK councils have changed how they classify short-term lets:
- Under 70 nights/year: Usually still pays Council Tax
- 70–140 nights/year: Some councils require planning permission for "change of use"
- Over 140 nights/year: May be liable for Business Rates instead of Council Tax
Business Rates can be higher than Council Tax, though Small Business Rate Relief may apply. In London, some boroughs now require a planning use class change for properties let more than 90 nights/year. Fines for non-compliance can reach £20,000.
Always check your local authority's short-term let policy before scaling your Airbnb business.
Frequently Asked Questions
Do I need to register as self-employed for Airbnb income?
If your gross property income is under £1,000/year, you do not need to register (Property Allowance). If it exceeds £1,000, or if you are using Rent-a-Room and exceed £7,500, you must register for Self Assessment. If you also have employment income, Airbnb income is declared alongside it.
Can I claim for my own labour (cleaning, management)?
No. HMRC does not allow you to claim a notional cost for your own time. If you pay a cleaner or management company, their invoice is deductible. If you do the work yourself, there is no tax deduction — your "reward" is the higher profit you keep.
What about the 90-day Airbnb limit in London?
In Greater London, you cannot let a residential property for more than 90 nights per calendar year without planning permission for "change of use" to short-term letting. Airbnb enforces this automatically. If you exceed 90 nights, you must either stop letting or apply for planning permission — which most councils refuse in residential areas.
Should I set up a limited company for my Airbnb?
A limited company can be attractive for multiple properties or high-income hosts. Companies pay 19–25% Corporation Tax and can deduct mortgage interest fully. However, extracting profits via dividends triggers personal tax. For a single property earning £25,000/year, the admin costs usually outweigh the savings. For portfolios of 3+ properties, incorporation often wins.
Can I switch between Rent-a-Room and actual expenses?
Yes, but you must elect to opt out of Rent-a-Room by 31 January following the end of the tax year. Once opted out for a year, you cannot revert to Rent-a-Room for that same year. Most accountants recommend calculating both methods before filing and choosing whichever gives the lower tax bill. Our calculator does this automatically.