The Worldwide Disclosure Facility Explained

The Worldwide Disclosure Facility is the current HMRC route for individuals, trustees, partnerships and companies to disclose UK tax that has been underpaid because of an offshore income source, gain or asset. It sits alongside, but is separate from, the general Digital Disclosure Service used for purely domestic errors.

A WDF disclosure is made in two stages: an initial online notification through the Digital Disclosure Service, followed by a fuller disclosure within the period HMRC allows. The facility does not offer a fixed reduced penalty rate; instead it is a structured process for calculating and presenting the disclosure so HMRC can assess it under the applicable legislation.

An offshore matter broadly covers income arising from a source outside the UK, gains on assets situated outside the UK, and activities carried out wholly or mainly outside the UK, where these have not been correctly reported for UK tax. Common examples include rental income from an overseas property, dividends from foreign shareholdings, and gains on the sale of an overseas asset.

The rules also address 'offshore transfers', where UK income or gains are moved offshore in a way connected to non-compliance. Whether a specific case is domestic, offshore, or a mixture of both affects the applicable penalty category, so this distinction should be worked through carefully rather than assumed from where the money currently sits.

The requirement to correct legislation gave taxpayers a defined window to correct historical offshore non-compliance before a tougher failure to correct penalty regime applied to anything left unresolved after that deadline passed. That window has now closed, which means offshore matters still uncorrected can fall within the failure to correct rules rather than the ordinary inaccuracy penalty regime.

Failure to correct penalties are generally higher than the standard behaviour-based ranges and include the possibility of asset-based penalties in serious cases, alongside potential publication of deliberate defaulters where the statutory thresholds are met. This makes early, complete correction through the WDF considerably more attractive than waiting.

Where a standard inaccuracy penalty applies rather than failure to correct, the legislation increases the penalty for offshore matters according to the transparency of the jurisdiction involved, broadly grouping countries into categories with escalating uplifts. This means the same underlying behaviour, such as a careless error, can attract a noticeably different penalty depending on where the asset or income was located.

Because these categories and the surrounding rules change relatively rarely but do change, always check the current position rather than relying on a fixed percentage remembered from an earlier case; the working penalty percentage should be calculated against the applicable ranges at the time of disclosure.

Offshore matters can attract longer assessment time limits than a purely domestic careless error, and HMRC increasingly identifies offshore non-compliance using data received automatically from overseas financial institutions under the Common Reporting Standard, rather than through taxpayer admission alone.

This data flow means many WDF disclosures follow a nudge letter referencing specific account information HMRC already holds. Where that is the case, the disclosure needs to address the data HMRC has, not simply present a general narrative, since inconsistencies between the disclosure and HMRC's underlying data are likely to be queried.

The WDF assumes a civil, cooperative disclosure of an offshore matter that has not already become the subject of a formal HMRC investigation. Where HMRC has opened a Code of Practice 9 investigation, or where the facts suggest suspected fraud, the Contractual Disclosure Facility process applies instead and should not be bypassed by attempting a WDF notification.

Similarly, where the underlying issue is not genuinely offshore, for example a UK-based error that happens to involve a foreign currency invoice, the general Digital Disclosure Service or a straightforward return amendment may be more appropriate than the WDF's offshore-specific process.