75 Whitchurch Road, Cardiff CF14 3JP
Mon to Fri, 9AM – 6PM
Not every undeclared tax issue falls under a named campaign like Let Property or Worldwide Disclosure — this is where everything else goes. HMRC’s Digital Disclosure Service (DDS) is the general-purpose online facility for voluntarily disclosing previously undeclared income, gains, or errors in tax returns where no dedicated campaign applies — for example, undeclared self-employment income, dividends, or general Self-Assessment inaccuracies.

through the online service.

and payment reference from HMRC.

— calculating tax, interest, and proposed penalty across the relevant years.

typically 90 days from registration.
Appeal time limits are strict. In most cases you have 30 days from the date of the decision.
We confirm the DDS is genuinely the right facility for your situation, rather than a campaign that might offer better terms.
We prepare an accurate calculation across all affected years and tax types.
We draft the disclosure narrative to reflect your behaviour fairly and supportively.
We manage the registration and submission process in full.
We negotiate with HMRC on penalty mitigation once the disclosure is reviewed.
Unsure if your situation fits a specific campaign or the general service? Speak to an Expert first — using the wrong route can mean missing out on better terms.
Some named campaigns (like Let Property) have more established, predictable outcomes than a general DDS disclosure for the same type of error. Before registering anywhere, it’s worth a short conversation to confirm you’re using the facility that genuinely gives you the best outcome.
Using the right route from the start can save you significant penalties and stress. Contact us today for a free, confidential review of your position.
No — offshore matters should go through the WDF specifically, as it’s designed for that purpose and affects how penalties are calculated.
That’s normal at this stage. We calculate this for you before anything is registered or submitted.
There’s no fixed closing date for the DDS itself, but penalties increase the longer you wait, particularly if HMRC contacts you first.
Book an appointment with our specialists today.