If you are a landlord with undeclared rental income, you’ve likely heard whispers of a special HMRC scheme that allows you to “come clean” on favorable terms. But as we move deeper into the year, many property owners are asking: Is the Let Property Campaign still running in 2026? The short answer is a resounding yes. However, while the opportunity remains open, the technology HMRC uses to find you has become significantly more aggressive.
In this comprehensive guide, we will explore why the Let Property Campaign remains one of the longest-running disclosure opportunities in UK tax history, what has changed for landlords this year, and why waiting any longer to settle your affairs could be the most expensive mistake of your financial life. Whether you are managing properties in Windsor, Oxford, or London, understanding the current status of this campaign is vital for your peace of mind.
Featured Snippet: Is the Let Property Campaign active in 2026?
Yes, the Let Property Campaign is still active in 2026. It remains an open-ended disclosure opportunity for individual landlords to declare unpaid rental tax. By coming forward voluntarily before HMRC contacts you, you can benefit from lower penalty rates and a structured pathway to regularize your tax affairs.
The Longevity of the Let Property Campaign: Why is it Still Here?
The Let Property Campaign first launched in 2013. Most tax amnesties or “campaigns” last for 12 to 18 months, yet here we are in 2026, and the digital doors are still wide open. Why?
1. The Digital Revolution in Tax Tracking
HMRC’s “Connect” computer system is the primary reason the campaign hasn’t closed. Connect now cross-references billions of data points, including Land Registry records, bank interest, estate agent lists, and even short-term let platforms like Airbnb. Because the data is constantly updating, HMRC continuously finds “new” landlords who haven’t registered for Self Assessment.
2. Efficient Revenue Collection
It is far cheaper for the Treasury if you calculate your own tax and hand it over than it is for them to hire an inspector to perform a manual audit. The campaign serves as a “self-service” portal for compliance, which remains a priority for the government in 2026 as they look to close the tax gap.
3. The Surge in Professional Landlords
With the shifting economy, more people have become “accidental landlords”—perhaps moving in with a partner or inheriting a home. HMRC recognizes that many people fall into non-compliance through ignorance rather than malice, and the LPC provides a way to bring these people into the system without the need for criminal proceedings.
What Has Changed for Landlords in 2026?
While the campaign itself is the same, the environment surrounding it has shifted. If you are a landlord in Reading or Slough, you are operating under a different set of pressures than you were a few years ago.
The “Nudge Letter” Evolution
In 2026, HMRC has moved from broad-spectrum warnings to highly targeted “nudge letters.” These letters are no longer generic; they often imply that HMRC already has specific evidence of your rental activity. The moment you receive one of these, your window for an “unprompted” disclosure—which carries the lowest penalties—is effectively closing.
Section 24 and Interest Rates
The full impact of mortgage interest relief restrictions (Section 24) is now felt by all individual landlords. This means your “profit” for tax purposes might be much higher than the actual cash left in your pocket. Combined with higher interest rates on late payments, a tax debt from five years ago is significantly more expensive to settle in 2026 than it was in 2022.
Step-by-Step Guide: How to Disclose in 2026
If you’ve decided to use the Let Property Campaign to fix your tax affairs, follow this professional strategy framework to ensure the best possible outcome.
Step 1: The Notification Phase
You must notify HMRC of your intention to make a disclosure. This “stops the clock” in some regards, as it shows you are willing to cooperate. This is done through the Digital Disclosure Service (DDS).
Step 2: The 90-Day Calculation Window
Once you notify them, you have 90 days to prepare the figures. You will need:
- Total rental income for all undeclared years.
- A full list of allowable expenses (repairs, agent fees, insurance).
- Your other income figures (P60, dividends) to determine your tax bracket.
Step 3: Determining Behavior
You must decide if your error was “Reasonable Care,” “Careless,” or “Deliberate.” This is a legal determination. If you get this wrong, HMRC can reject your disclosure. This is why many landlords in Oxford and Windsor seek professional help to draft their narrative.
Step 4: Submission and Payment
You submit the figures, the interest, and the penalty you’ve calculated. Payment is usually required at the time of submission, though payment plans can be negotiated if you are in financial hardship.
Pros and Cons: Using the Campaign in 2026
| Pros | Cons |
| Lower Penalties: Voluntary (unprompted) disclosures often result in 0% to 20% penalties. | Interest Costs: Statutory interest is mandatory and can be high for old debts. |
| Asset Protection: Settling now prevents HMRC from placing charges on your property. | Financial Scrutiny: You are essentially opening your “books” to HMRC. |
| Peace of Mind: No more worrying about the “brown envelope” in the mail. | 90-Day Deadline: Once you start, you must finish quickly. |
Why You Should Act Now (The “Prompted” Risk)
The biggest risk in 2026 is moving from an unprompted to a prompted disclosure.
- Unprompted: You tell them. Penalty for a careless mistake = 0% – 30%.
- Prompted: They tell you. Penalty for the same mistake = 15% – 30%.
In high-value rental markets like London, that 15% difference can represent tens of thousands of pounds. HMRC is currently running a massive data-matching exercise focused on the South East, specifically targeting landlords who have not declared income since the 2021/22 tax year.
How Felix & Co. Supports Landlords in Your Area
Navigating the Let Property Campaign requires a blend of tax expertise and a human touch. We don’t just “file papers”; we protect your livelihood.
- Windsor & London: We specialize in high-net-worth disclosures where complex tax brackets and multiple properties make the calculations difficult.
- Oxford: We help academic and professional landlords who may have moved abroad and inadvertently became “Non-Resident Landlords” without following the correct tax procedures.
- Reading & Slough: We provide rapid response services for those who have received nudge letters and need to minimize their prompted penalty rates.
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Overview: Quick Summary
- Is it open? Yes, the Let Property Campaign is fully operational in 2026.
- Who is it for? Individual landlords (not companies) letting residential property.
- What are the benefits? Reduced penalties and avoidance of criminal prosecution.
- What is the risk of waiting? HMRC’s “Connect” system is likely to find undeclared income, leading to “prompted” status and higher fines.
- How long does it take? 90 days from notification to final submission.
FAQ: People Also Ask
1. Will the Let Property Campaign close soon?
There is no official closing date. However, HMRC can withdraw the “favorable terms” at any time. As their data-matching becomes more perfect, the need for a “voluntary” scheme diminishes, so acting now is safer than waiting for a potential closure.
2. I only have one property. Does HMRC really care?
Yes. HMRC’s system doesn’t differentiate between a landlord with fifty properties and a landlord with one. If the Land Registry shows you own a second home and your tax return doesn’t show rental income, you are a target for a nudge letter.
3. Can I declare income from 10 years ago?
Yes. The Let Property Campaign allows you to go back up to 20 years if the non-disclosure was deliberate. If it was a “reasonable excuse,” you may only need to go back 4 years.
4. What if I can’t afford the tax bill?
HMRC is generally willing to set up a “Time to Pay” arrangement if you are honest and proactive. A specialist accountant can help negotiate these terms so you aren’t forced to sell your property to pay the tax.
5. Are Airbnb and short-term lets included?
Technically, Airbnb hosts can use the Digital Disclosure Service, but the Let Property Campaign is specifically optimized for residential landlords. If you have “Rent a Room” income or short-term lets, you should still disclose, but the rules on expenses may vary.
6. How does HMRC find out about my rental income?
They use “Connect” to scan the Land Registry, the Electoral Roll, bank accounts (for regular large deposits), and data shared by estate agents and local councils (housing benefit payments).
7. Do I need an accountant to do this?
You can do it yourself, but it is high-risk. One mistake in your expense calculation or “behavior” categorization can lead to HMRC rejecting the disclosure and opening a full, intrusive audit.
The Best Time to Act is Now
The Let Property Campaign is still running in 2026, but it is not a “free pass.” It is a window of opportunity that is gradually being crowded by more advanced HMRC surveillance.
For landlords in Slough, Reading, Windsor, and London, the choice is simple: lead the conversation with HMRC on your terms and save thousands in penalties, or wait for them to lead the conversation on their terms. By using this campaign effectively, you can wipe the slate clean, protect your assets, and ensure your property investment remains a source of profit rather than a source of stress.
Don’t let your tax history haunt your future.
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Helping you pay only what you legally owe.