In 2026, with the cost of living remaining high, more UK homeowners than ever are turning to the Rent-a-Room Scheme. It’s a fantastic government incentive that allows you to earn a significant amount of tax-free income by letting out a furnished room in your main home.
However, there is a “magic number” you need to watch: £7,500. Go even a penny over this gross limit, and your tax position changes instantly. At Felix Accountants, we help live-in landlords navigate this threshold to ensure they stay compliant without overpaying. Here is the essential guide to the £7,500 limit.
1. How the Rent-a-Room Scheme Works in 2026
The scheme is designed for “resident landlords.” To qualify:
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The property must be your only or main residence.
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The room must be furnished.
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You can be an owner-occupier or a tenant (as long as your lease allows sub-letting).
The Automatic Exemption
If your total gross receipts from lodgers are £7,500 or less per tax year, the income is tax-free. You don’t even need to tell HMRC about it unless you are already filing a Self Assessment tax return for other reasons.
2. What Counts Towards the £7,500?
A common mistake landlords make is thinking only the “rent” counts. In the eyes of HMRC, your gross receipts include everything the lodger pays you:
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Base Rent: The monthly fee for the room.
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Utility Contributions: If the lodger pays a share of the gas, electricity, or Wi-Fi.
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Services: Any extra charges for laundry, cleaning, or providing meals.
Example: If you charge £600 a month in rent and £50 for bills, your annual gross receipts are £7,800. Even though your “profit” might be low, you have officially exceeded the £7,500 threshold.
3. The “Joint Owner” Trap: £3,750
If you own your home jointly with a spouse, partner, or friend, the £7,500 allowance is split equally.
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Each person has a tax-free limit of £3,750.
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This applies regardless of how you actually split the money. If you have one lodger paying £6,000 a year, and the property is jointly owned, you both have exceeded your individual £3,750 limits and must both file a tax return.
4. You’ve Gone Over £7,500: What Happens Next?
If you exceed the limit, you must complete a Self Assessment tax return. You then have two ways to calculate your tax:
Method A: The Rent-a-Room Method (Best for low expenses)
You pay tax only on the amount above £7,500. You cannot deduct any expenses (like repairs or utilities) because the £7,500 allowance is designed to cover them.
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Example: Income is £9,000. You pay tax on £1,500.
Method B: The Actual Profit Method (Best for high expenses)
You ignore the Rent-a-Room scheme and pay tax on your actual profit (Total Income minus Actual Expenses).
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Example: Income is £9,000, but you spent £3,000 on a new boiler for the lodger’s room and increased utility bills. Your profit is £6,000. In this case, Method B is better because you pay tax on £6,000 instead of the £7,500 “excess.”
Rent-a-Room Scheme
5. Using the Let Property Campaign for Lodger Income
If you’ve had a lodger for several years and only just realized you were over the £7,500 limit, don’t panic. The Let Property Campaign (LPC) isn’t just for whole-house rentals; it’s also the perfect tool for live-in landlords to “catch up.”
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Voluntary Disclosure: By coming forward via the LPC before HMRC finds you (perhaps via Airbnb data sharing), you can secure the lowest possible penalties.
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Multiple Years: We can help you look back at your history, determine which years you were over the limit, and settle the total bill in one go.
6. How Felix Accountants Optimizes Your Lodger Tax
We don’t just “file your taxes”—we strategize.
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Yearly Election: We calculate both Method A and Method B every year to see which saves you more. You can switch between them annually!
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Expense Tracking: We help you identify “allowable expenses” you might have missed if you choose Method B.
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HMRC Correspondence: If you receive a nudge letter regarding Airbnb or lodger income, we take over the communication.
Frequently Asked Questions (FAQs)
Q1: Can I use the Rent-a-Room scheme for an Airbnb?
Yes, provided the room is in your main home and you are living there during the guest’s stay. If you rent out a separate, self-contained annex or a second home, you cannot use this scheme.
Q2: Can I claim the £1,000 Property Allowance as well?
No. You cannot use both the Rent-a-Room relief and the £1,000 Property Allowance against the same income.
Q3: What if I have two lodgers?
The £7,500 limit is per property, not per lodger. If two lodgers pay you £5,000 each, your total income is £10,000, and you are over the limit.
Q4: My lodger is a “Monday to Friday” worker. Does the limit still apply?
Yes. The nature of the stay doesn’t matter, as long as the room is in your main home and furnished.
Q5: I share the house with my partner, but the mortgage is only in my name. Is the limit £7,500 or £3,750?
If you are the sole legal owner and the rent is paid to you, you usually get the full £7,500 allowance. If your partner starts receiving a share of the income, the limit splits to £3,750 each.
Don’t Let a Spare Room Become a Tax Burden
Having a lodger should be a financial help, not a source of stress. If you think you might be close to or over the £7,500 limit, Felix Accountants can help you crunch the numbers.