Taking in a lodger can help cover your mortgage or household bills, but the extra income may raise questions about tax. Do you need to tell HMRC, and will you owe tax on everything you receive? The answer depends on whether you qualify for the Rent a Room Scheme, how much income you earn, and whether you need to complete a tax return for other reasons. Understanding the rules can help you avoid reporting mistakes and choose the right way to calculate any tax due.
Do I Have to Declare Rent a Room Income to HMRC?
Not everyone who rents out a room has to pay tax, but reporting requirements depend on your circumstances.
The Rent a Room Scheme allows qualifying homeowners and tenants to receive up to £7,500 a year in tax-free income from furnished accommodation in their only or main home. The limit falls to £3,750 if another person also receives income from letting accommodation in the same property.
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Your situation |
What you need to know |
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Qualifying gross receipts are within the £7,500 limit |
The income is normally exempt from tax under the scheme. |
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Your gross receipts exceed £7,500 |
You can compare the two available tax calculation methods. |
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You already complete a Self Assessment tax return |
Check HMRC's reporting instructions, as exempt income and reporting obligations are not always the same question. |
HMRC's Rent a Room Scheme guidance explains the conditions and tax treatment. If you earn more than £1,000 from letting furnished rooms, check HMRC's Self Assessment property income guidance to understand your reporting obligations.
Who Can Use the Rent a Room Scheme?
The scheme is designed for people who rent out furnished accommodation in their only or main home. Both homeowners and tenants may qualify if they meet the conditions. You may qualify if you:
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Rent out a furnished room to a lodger.
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Continue to use the property as your main home.
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Receive rent or related payments that fall within the scheme's rules.
You generally cannot use the scheme if the room is unfurnished or the accommodation is not part of your main home while it is let. Renting out a separate property does not normally qualify either.
If you are a tenant planning to take in a lodger, check your tenancy agreement and whether you need your landlord's permission. The scheme's tax rules do not remove your other housing responsibilities.
What Happens If Your Lodger Pays More Than £7,500?
Earning more than £7,500 does not automatically make all your rental income taxable. You can usually choose between two methods for calculating the taxable amount. Suppose your total receipts from a furnished room are £9,000 in one tax year.
Option 1: Use the Rent a Room allowance
You calculate the amount above the threshold:
£9,000 - £7,500 = £1,500 potentially taxable
Under this method, you cannot deduct expenses from the amount above the allowance.
Option 2: Calculate your actual profit
You deduct allowable expenses from your total receipts and pay tax on the resulting profit. For example, if your receipts are £9,000 and your allowable expenses are £2,000, your profit would be £7,000.
In this example, the actual-profit method may be more favourable. Your final tax bill depends on your wider income and circumstances. HMRC explains both methods in its Rent a Room tax calculation guidance.
Does the £7,500 Allowance Apply to Each Person?
The full £7,500 limit does not automatically apply to every person involved in letting a room. If another person also receives income from letting accommodation in the same property, the limit is generally £3,750 for each person. This may matter when a home is jointly owned or the rental income is shared.
For example, if two people share the income from a lodger, they should check how the receipts are divided and which limit applies to each of them. The tax treatment depends on the actual arrangement, not simply whose bank account receives the rent.
What Other Income and Costs Should You Check?
The Rent a Room threshold applies to gross receipts before expenses, not just the rent left over after bills. Your receipts may include:
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Rent paid by your lodger.
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Contributions towards household bills, where these count as receipts under the scheme.
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Payments for related services, such as meals, cleaning or laundry.
Keep records of the payments you receive and the dates they cover. Check whether the accommodation meets the scheme's conditions and whether you have other income that creates a Self Assessment reporting obligation.
What Should You Do Before Taking in a Lodger?
Before agreeing to rent out a room, take these steps:
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Check eligibility: Confirm that the accommodation and your living arrangements meet the Rent a Room Scheme rules.
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Estimate annual receipts: Include rent and relevant payments for services.
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Compare tax methods: If you expect to exceed the threshold, work out whether the allowance method or actual-profit method is more suitable.
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Keep records: Save payment records and receipts for relevant expenses.
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Check your responsibilities: Review your tenancy or mortgage conditions, insurance and property safety requirements.
These checks can help you avoid unexpected tax or property issues after your lodger moves in.
How Cribs Estates Can Help with Letting a Room
Cribs Estates provides landlord and property management services, including tenant sourcing and referencing, rent collection, maintenance coordination and support with relevant property compliance. These services can help landlords manage the responsibilities of renting out property. If you are considering letting a room or need help managing a rental property, explore Cribs Estates' property management services for landlords and landlord services and management options.



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