If you’re a landlord in the UK who hasn’t been entirely forthcoming about your rental income, now’s the time to act. The Let Property Campaign (LPC), introduced by HMRC, offers landlords an opportunity to declare their rental earnings and settle unpaid taxes with reduced penalties. While the initiative might feel like a push from the tax authorities, it’s more of a lifeline than a penalty.
Here’s everything you need to know about the Let Property Campaign, why it’s important, and how to make the most of it if you’ve been caught off guard by tax obligations.

Why Is HMRC Running the Let Property Campaign?
There are significant numbers of landlords who are unknowingly or knowingly failing to declare their rental income. HMRC is on a mission to bridge this gap, recover unpaid taxes, and ensure landlords are compliant with their obligations.
Although the campaign has been active since 2013, its urgency has increased in recent years. HMRC has intensified its outreach by sending “nudge letters” to landlords suspected of non-compliance.
Whether you’re renting out a single room or multiple properties in the UK or abroad, you’re expected to comply with this scheme. If you receive one of these letters, you’ll need to act quickly; you have 30 days to notify HMRC and three months to pay what you owe.
What Counts as a Residential Property Rental?
A major reason many landlords fail to declare their rental income is the lack of clarity about what qualifies as a rental activity.

Not everyone identifies as a landlord, especially those renting out non-residential property. HMRC’s definition of a residential landlord is broader than you might expect. Here’s what qualifies:
- Renting out a single property.
- Owning multiple rental properties (domestic or overseas).
- Offering specialist housing, such as for students or workers.
- Running holiday rentals or short-term lets, including Airbnb properties.
- Renting out a room in your primary residence.
- Temporarily renting out your property while living abroad for six months or more.
Essentially, if you’re earning money from letting out any type of residential property, HMRC considers you a landlord and, therefore, liable for taxes on that income.
When Are You Exempt from Rental Income Tax?
Not every landlord owes tax on their rental income. HMRC has provided a few exemptions and allowances to reduce the tax burden for smaller-scale landlords:
Rent-a-Room Scheme
If you rent out a room in your primary residence, you can earn up to £7,500 per year tax-free under the Rent-a-Room scheme. This is a common arrangement for live-in landlords renting to lodgers. Any earnings above this threshold, however, are taxable.
Property Income Allowance
For those renting out second homes, holiday properties, or buy-to-let properties, the Property Income Allowance lets you earn up to £1,000 annually tax-free. Beyond that amount, the excess is subject to tax.
Tax Relief on Mortgage Interest
Landlords renting out second homes or buy-to-let properties can claim a 20% tax credit on their mortgage interest or property profits, whichever is lower.
Allowable Expenses
Landlords can deduct certain allowable expenses when calculating their taxable rental income. These expenses include:
- Ground rent
- Property maintenance and repairs
- Accounting fees
- Utility bills (if you cover them as part of the rental agreement)
These allowances and deductions can make a significant difference in reducing your tax liability.
Why Voluntary Disclosure Is Better Than Being Investigated
If HMRC discovers your undeclared rental income through an investigation, you could face penalties as high as 200% of the tax owed. However, if you voluntarily disclose your income through the Let Property Campaign, the penalties are capped lower.
Acting proactively not only minimises financial penalties but also prevents unnecessary stress and potential legal complications.
How to Disclose Your Rental Income?
The disclosure process under the Let Property Campaign involves three simple steps:
Common Misconceptions About the Let Property Campaign
“I haven’t received a letter, so I’m safe.”
Even if HMRC hasn’t contacted you yet, that doesn’t mean you’re off their radar. The campaign is ongoing, and data-sharing agreements with platforms like Airbnb, banks, and local authorities allow HMRC to identify potential non-compliance.
“I only rent out a room occasionally—it doesn’t count.”
If you’re earning income from any rental activity, including short-term lets or Airbnb, you’re classified as a landlord. Regular or irregular, your earnings are taxable if they exceed the relevant allowances.
Real-Life Examples
The Airbnb Host
Tom rents out a spare room through Airbnb, earning £10,000 per year. He’s unaware of his tax obligations until he receives a nudge letter. After consulting an accountant, Tom discloses his income and calculates that he owes £1,200 in unpaid taxes and a 10% penalty. By acting promptly, Tom avoids a 200% penalty and legal troubles.
The Accidental Landlord
Sarah inherited a property from her grandmother and rented it out to cover maintenance costs. She earns £8,000 annually but has never declared it. Through the Let Property Campaign, Sarah calculates her tax liability, offsets her expenses, and pays a reduced penalty, saving her thousands.
Conclusion
The Let Property Campaign is a chance for landlords to come clean about undeclared rental income and avoid severe penalties. Whether you’re an Airbnb host, an accidental landlord, or a property investor, now is the time to ensure your tax affairs are in order.
Delaying action not only increases financial risks but could also lead to legal consequences. Taking advantage of this initiative shows good faith and offers a clearer path to compliance. If you’re unsure where to start, consider seeking expert advice to guide you through the process.
Don’t wait for HMRC to knock on your door—seize the opportunity to resolve your tax obligations with minimal stress and penalties.
Need more expert advice on Let Property Campaign?
Contact us today for efficient and
hassle-free assistance.
- Could the Autumn Budget 2026 Bring Down the UK Mansion Tax Threshold to £1.5m? - 25 September 2026
- The Bank of England Interest Rate Stays at 3.75%. But Here’s the Catch - 18 September 2026
- The North Is Now the Fastest UK Rent Growth Region. Here’s What That Does to Rental Yields - 17 September 2026

