The Rent-a-Room Scheme: The Complete Guide to Tax-Free Lodger Income

The rent-a-room scheme lets you earn up to £7,500 of lodger income each tax year completely free of income tax, with no tax return and no calculations required if your gross receipts stay at or below that threshold. In many cases the tax treatment is remarkably generous, but the scheme comes with specific conditions, and there are circumstances where opting out and declaring income in the traditional way actually leaves you better off. There are also important rules for joint owners that can catch people out. This guide is written by Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice, and gives you a complete picture of how the rent-a-room scheme works in 2026/27, who qualifies, and how to decide whether it works in your favour.

Key Takeaways

• The rent-a-room threshold for 2026/27 is £7,500 of gross lodger income, equivalent to £625 per month, free of income tax.
• The exemption is automatic and requires no self-assessment return if your gross receipts are at or below £7,500.
• If your allowable expenses exceed £7,500, opting out and using normal property income rules usually produces a lower tax bill.
• To opt out, you make an election on your self-assessment return by the filing deadline of 31 January 2028 for 2026/27.
• Where two people share a home and both receive lodger rent, the threshold is halved to £3,750 each.
• The scheme applies only to furnished accommodation in your only or main home while you also live there; it does not cover whole-property lets.

What Is the Rent-a-Room Scheme and How Does It Work?

The rent-a-room scheme is a government relief that lets individuals let furnished accommodation in their main home and receive up to £7,500 of rental income per tax year free of income tax. It is set out in the Income Tax (Trading and Other Income) Act 2005 and administered by HMRC.

The headline figure for 2026/27 is £7,500. If your gross rental receipts from letting furnished rooms in your home are at or below this amount, you have no income tax to pay on that income and, by default, you do not need to report it.

The scheme covers lodger arrangements, which are different from standard tenancy agreements. A lodger lives in your home while you also live there. They typically share common areas such as a kitchen or living room. This is an important distinction: the rent-a-room scheme does not apply to property you let out entirely while living elsewhere. If you rent out your whole home, you fall outside the scheme and must declare the income as normal property income.

Who Qualifies for the Rent-a-Room Scheme?

You qualify for the rent-a-room scheme if you let furnished accommodation in your only or main home while you also live there; you do not need to own the property, and there is no minimum or maximum letting period.

You must be renting out furnished accommodation in your only or main home. The home must be your principal residence during the letting period: you cannot use the scheme for a second property or a buy-to-let. The accommodation let must be furnished. Unfurnished rooms do not qualify.

You do not need to own the property. Tenants can also use the rent-a-room scheme, provided their lease allows subletting. If you rent your flat and take in a lodger in a furnished spare room with your landlord's permission, the scheme applies to you in the same way as it does to an owner-occupier.

There is no minimum or maximum period required. You can let a room for a few months while a friend or colleague is working nearby, or on a longer-term basis. The scheme applies regardless of the length of the arrangement, provided the other conditions are met.

How Does the £7,500 Threshold Work in Practice?

The £7,500 threshold applies to your gross rental receipts, meaning the total received from lodgers before any deduction for expenses, and it equates to £625 per month.

If your gross receipts are at or below £7,500, the income is automatically exempt from tax. You do not need to report it on a self-assessment return unless you are already registered for self-assessment for other reasons.

If your gross receipts exceed £7,500, you have two options. First, you can remain within the scheme, pay tax only on the amount above £7,500, and claim no deductions for expenses. Second, you can opt out of the scheme entirely and declare the income as normal property income, deducting allowable expenses from your gross receipts in the usual way.

The £7,500 threshold translates to £625 per month. For a single furnished room in a city or commuter town, this is a figure that many landlords can comfortably stay within. In London and other high-demand areas, it is more common for lodger income to exceed the threshold, at which point the decision between staying in the scheme and opting out becomes significant.

When Does Opting Out of the Scheme Make Sense?

Opting out makes sense when your allowable expenses exceed £7,500, because the normal property income basis then gives a lower taxable figure than the £7,500 exemption. Below £7,500 of expenses, staying in the scheme is usually better.

Consider this example. David rents out a furnished room in his home in 2026/27 and receives £10,000 from his lodger over the course of the year. His allowable expenses, including a proportion of mortgage interest (if applicable), utilities, wear and tear, and insurance, amount to £4,000.

Under the rent-a-room scheme: taxable income = £10,000 minus £7,500 = £2,500.

Opting out and using normal property income rules: taxable income = £10,000 minus £4,000 expenses = £6,000.

In this case, David is better off staying within the rent-a-room scheme. The £7,500 exemption gives him a better result than his actual expenses.

Now consider a different scenario. Rachel lets two furnished rooms in her large house and receives £15,000 in total lodger income in 2026/27. Her allowable expenses are £9,000.

Under the rent-a-room scheme: taxable income = £15,000 minus £7,500 = £7,500.

Opting out: taxable income = £15,000 minus £9,000 = £6,000.

Here, Rachel is better off opting out. Her expenses exceed the £7,500 exemption, making the normal property income basis more tax-efficient.

The break-even point is straightforward: if your allowable expenses are greater than £7,500, opting out is likely to produce a lower tax bill. If they are less than £7,500, staying in the scheme is usually better.

To opt out of the rent-a-room scheme, you make an election through your self-assessment tax return. The election must be made by the filing deadline: 31 January 2028 for 2026/27 returns. The election remains in force until you revoke it, so you do not need to re-elect each year. However, it is worth reviewing annually as income and expenses change.

How Does Joint Ownership Affect the Rent-a-Room Threshold?

If you share your home with another person and you both receive rent from a lodger, the £7,500 threshold is halved, giving each joint owner a threshold of £3,750 in 2026/27.

This applies regardless of how the income is split between you. If you and your partner jointly own a property and a lodger pays £7,000 a year, you each have gross receipts of £3,500 (assuming income is split 50/50), which falls below the individual threshold of £3,750. Both of you would be exempt.

However, if the lodger pays £10,000 a year and you split the income equally, each of you receives £5,000, which exceeds the individual threshold of £3,750. Each of you would need to consider whether to stay in the scheme (taxable on £1,250 each) or opt out and use actual expenses.

Importantly, both joint owners must make the same election. If one opts out and the other does not, HMRC may not accept the arrangement. It is essential to approach this consistently.

How Does the Scheme Interact With Self-Assessment and Making Tax Digital?

If your rent-a-room income stays below £7,500 and you have no other reason to file a return, the exemption is automatic and you do not need to register or report the income. Above £7,500, or if you opt out, you must report the income through self-assessment.

This requires registering with HMRC if you are not already registered, and submitting an annual return (or, from 6 April 2026, complying with Making Tax Digital for Income Tax if applicable).

From 6 April 2026, landlords and sole traders with qualifying income above £50,000 must use MTD for Income Tax compliant software to keep digital records and submit quarterly updates to HMRC. Those above £30,000 join from April 2027.

For most people using the rent-a-room scheme, total rental income will be well below £50,000, meaning MTD does not currently apply. However, landlords with both lodger income and other rental income from buy-to-let properties should be careful: HMRC aggregates all qualifying income when determining whether the MTD threshold applies.

What Other Practical Points Should You Remember?

A few additional points are worth noting: the scheme covers only residential letting in your main home, applies even alongside separate buy-to-let income, and stops applying if you let the whole property while living elsewhere.

The rent-a-room scheme only applies to residential letting: you cannot use it for a room let as an office or for business storage. The room must be used as living accommodation.

You can use the scheme even if you also have other rental income from separate buy-to-let properties. The scheme applies specifically to your main home letting; other properties are treated under the normal property income rules.

If you move out of the property temporarily, for example while working abroad for several months, and let a lodger occupy the whole property during your absence, you fall outside the scheme for that period. The scheme requires you and the lodger to share the property as a main home for the exemption to apply.

Finally, keep records of your rental income and any expenses, even if you expect to remain below the £7,500 threshold. HMRC may ask for evidence, and having clear records avoids any uncertainty.

Frequently Asked Questions

How much can I earn tax-free under the rent-a-room scheme in 2026/27?

You can earn up to £7,500 of gross lodger income tax-free under the rent-a-room scheme in 2026/27, equivalent to £625 per month. This figure applies to your total receipts before any deduction for expenses. If your gross receipts are at or below £7,500, the income is automatically exempt and you do not need to report it on a self-assessment return.

Do I have to tell HMRC about rent-a-room income?

No, not if your gross lodger income stays at or below £7,500 and you have no other reason to complete a self-assessment return; the exemption is automatic. You only need to report the income if your gross receipts exceed £7,500, or if you choose to opt out of the scheme to claim actual expenses, in which case you must register and report through self-assessment.

When is it better to opt out of the rent-a-room scheme?

Opting out is usually better when your allowable expenses exceed £7,500, because the normal property income basis then gives a lower taxable figure than the £7,500 exemption. For example, on £15,000 of lodger income with £9,000 of expenses, opting out leaves £6,000 taxable versus £7,500 under the scheme. If expenses are below £7,500, staying in the scheme is normally better.

How does the rent-a-room threshold work if I own my home jointly?

If you share your home and both of you receive lodger rent, the £7,500 threshold is halved to £3,750 each for 2026/27. So if a lodger pays £7,000 split equally, each owner has £3,500 of receipts, below the £3,750 threshold, and both are exempt. Both joint owners must make the same election; HMRC may not accept it if one opts out and the other does not.

What is the deadline to opt out of the scheme for 2026/27?

To opt out of the rent-a-room scheme for 2026/27, you make an election on your self-assessment tax return by the filing deadline of 31 January 2028. The election remains in force until you revoke it, so you do not need to re-elect every year. It is still worth reviewing the decision annually as your income and allowable expenses change.

How Blue Tick Can Help

Deciding whether the rent-a-room scheme applies to your situation, and whether opting out would leave you better off, depends on your specific income and expenses. Blue Tick Accountants advises landlords and homeowners on all aspects of property income tax, including the rent-a-room scheme, self-assessment obligations, and the interaction with other rental income. Head to our website and book a meeting now.

Conclusion

The rent-a-room scheme is one of the most straightforward tax reliefs available to homeowners, but the rules around joint ownership, opting out, and self-assessment eligibility mean it pays to understand the detail before assuming you are automatically exempt. If your lodger income stays below £7,500, the scheme works effortlessly in your favour with no return required. If you are above that figure, a quick comparison of your allowable expenses against the threshold will tell you where you stand: expenses above £7,500 usually point to opting out, while expenses below it favour staying in the scheme. Reviewing the position each year keeps you on the most efficient footing.

About the Author

This guide was written by Leon, founder of Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice that helps landlords and homeowners across the UK manage property income tax and self-assessment. It was last reviewed for the 2026/27 tax year.

This article is intended for general informational purposes only and does not constitute tax, legal, or financial advice. Tax rules are subject to change and their application will depend on your individual circumstances. You should always seek advice from a qualified professional before taking action. Blue Tick Accountants accepts no liability for decisions made on the basis of this content.