Received an HMRC nudge letter regarding your London property? Felix Accountants helps landlords across the capital settle undeclared rental income with professional discretion and minimum penalties. Receive Let Property Campaign expert help from Felix Accountants.
London is the largest rental market in the UK, making it the primary target for HMRC’s compliance teams in 2026. Whether you own a multi-unit block in Canary Wharf, a Victorian conversion in Islington, or a portfolio of short-term lets in Westminster, you are now operating in a highly scrutinized environment. With London’s borough councils sharing more licensing data than ever before, the chance of undeclared income remaining hidden is rapidly decreasing.
At Felix Accountants, we specialize in the HMRC Let Property Campaign (LPC) for London landlords. We handle the complexities of high-value London property tax so you can achieve total compliance and peace of mind.
Why London Landlords are the #1 Target for HMRC in 2026
London’s unique property landscape provides HMRC with multiple data “hooks” to identify undeclared income:
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Borough-Specific Licensing Cracking Down: In 2026, 28 out of 32 London boroughs have implemented some form of Selective or Additional Licensing. New or expanded schemes in Westminster, Wandsworth, Hillingdon, and Hackney mean your property is on a council database—which HMRC’s “Connect” AI accesses daily.
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The Airbnb & Short-Term Let Surge: London remains the UK’s capital for short-term lets. Since 2024, digital platforms have shared all host earnings with HMRC. If you have been letting a room or flat in London occasionally without declaring it, a nudge letter is likely already in the post.
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Non-Resident Investor Scrutiny: London attracts more overseas investment than any other UK city. HMRC is specifically targeting non-resident landlords who may not realize they still have UK tax obligations regardless of where they live.
How Felix Accountants Supports London Landlords
Managing property tax in London requires more than just general accounting. We offer bespoke services tailored to the capital’s market:
1. Navigating Multiple Borough Licenses
We understand the complex web of London’s licensing. We ensure your tax disclosure aligns with the licenses you hold in different boroughs, preventing inconsistencies that could trigger a deeper HMRC audit.
2. Specialist Short-Term Let Disclosures
For landlords using Airbnb or similar platforms, we calculate the nuances of Furnished Holiday Let (FHL) rules versus standard property income, ensuring you claim every possible expense—from high-cost London utilities to platform fees.
3. “Unprompted” Strategy for High-Value Portfolios
In London, the “tax gap” can be large. By moving fast to secure “Unprompted” status via the Let Property Campaign, we can often save our clients tens of thousands of pounds in penalties that HMRC would otherwise charge for “Prompted” discoveries.
Expert Advice Across the Capital
We represent landlords from Mayfair to Merton, and Hammersmith to Havering. This broad experience allows us to handle both high-net-worth individual disclosures and complex multi-property portfolio settlements.
Don’t Let Your London Investment Become a Liability
With the rollout of Making Tax Digital (MTD) in April 2026 for landlords with income over £50,000, your tax affairs will soon be under real-time surveillance. The Let Property Campaign is your final chance to clean up the past before the new system goes live.
Contact Felix Accountants today for a confidential assessment with a London property tax expert.
Book My London Tax Consultation