Managing HMRC Worldwide Disclosure Letters

Under the Common Reporting Standard (CRS), over 100 countries now automatically share details of bank accounts, investment holdings, and other financial assets held by UK residents overseas, with HMRC each year. It is no longer realistic to assume that income or assets held outside the UK will go unnoticed.

If you have received a letter from HMRC asking about income or assets held outside the UK, the most important thing to understand is that it has not arrived by chance. HMRC has already received information about your offshore financial position from overseas authorities and identified a potential discrepancy between what they hold and what has been declared on your UK tax returns. The letter is offering an opportunity to respond before they take further action.

If you are in that position, the right response is not to delay, nor to respond to HMRC directly without first understanding what the letter requires and what your options are. We would strongly encourage you to seek advice as early as possible, as how the disclosure is handled from the outset can make a significant difference to the outcome.

What the Worldwide Disclosure Facility is

The Worldwide Disclosure Facility, known as the WDF, is the formal route through which individuals can disclose a UK tax liability that relates wholly or partly to an offshore issue. It covers income arising outside the UK, assets held or situated overseas, activities carried on mainly outside the UK, and funds connected to unpaid UK tax that have been transferred or held offshore.
The WDF is not limited to those who have deliberately avoided tax. Many of the disclosures we assist with involve genuinely innocent omissions; a foreign rental property not realised to be reportable in the UK, a pension from a former employer overseas assumed to be dealt with locally, an investment account opened many years ago that has quietly generated income. The WDF exists to provide a structured, civil process for putting these matters right, and using it voluntarily rather than waiting for HMRC to open a formal enquiry is always the preferable position to be in.

The notification and 90-day disclosure process

The WDF process begins with notification through the Digital Disclosure Service. HMRC will issue a unique Disclosure Reference Number, and from the point of acknowledgement, you have 90 days to gather the information needed, calculate the full liability including tax, interest and penalties, and submit your completed disclosure. Any tax due must be paid at the time of submission. Where a disclosure is complex, it is possible to request an additional 90 days, bringing the total window to up to 180 days.

How years and penalties are determined

The number of years you must include in your disclosure depends on how the original omission came about. Graduated penalties apply depending on whether the failure resulted from a genuine mistake, a careless oversight, or a deliberate decision not to declare, and the look-back period varies in each case.
The distinction between prompted and unprompted disclosures matters considerably. Coming forward voluntarily before HMRC has written to you attracts greater penalty reductions than responding to a nudge letter. The earlier and more carefully a disclosure is made, the better the position you are likely to be in. HMRC reserves the right to conduct a criminal investigation where a disclosure is found to be inaccurate or incomplete. While the great majority of disclosures are handled civilly, this is where expert guidance can provide protection.

Why professional representation matters from the outset

We regularly work with clients who have received a letter from HMRC and are uncertain whether to respond directly, seek advice, or wait. We would always recommend the same course: take advice before responding, and do not underestimate the importance of the details submitted in your first response.

In some cases, HMRC nudge letters are accompanied by a Certificate of Tax Position, a document that asks you to confirm that your tax affairs are in order. It should never be completed without professional advice. An error in that certificate, even an inadvertent one, can be treated by HMRC as a serious matter.

We assist clients through every stage of the WDF process, from the initial review of whether a disclosure is required, through to notification, calculation, and submission, managing all correspondence with HMRC on your behalf to secure the best possible outcome.

We would be very happy to talk you through your position, whether you have received a letter from HMRC or simply want to review things before one arrives.

To understand exactly what your options are and what to do next, please do get in touch.