Stop the panic. We leverage ex-HMRC Inspector expertise to manage your disclosure, minimize penalties, and prevent criminal prosecution.
You may have received a letter referencing Offshore Income or Assets or a Certificate of Tax Position. Do not ignore this. HMRC likely already holds data on your accounts via the Common Reporting Standard (CRS). Responding incorrectly can lead to a criminal investigation.
You have identified an error or omitted income before HMRC contacted you. This is the best-case scenario. We can often negotiate 0% penalties for unprompted disclosures.
The global tax landscape has changed. Through the Common Reporting Standard (CRS), HMRC now receives automatic financial data from over 100 jurisdictions, including popular expat hubs like Spain, Dubai, and Switzerland. They know about your offshore accounts, and the clock is ticking.
Many taxpayers attempt to file a WDF disclosure themselves to save fees, only to trigger a full tax investigation. The risks are severe:
200% Penalties: Under the Requirement to Correct (RTC) legislation, failing to disclose historic liabilities correctly can trigger Failure to Correct (FTC) penalties of up to 200% of the tax owed.
Criminal Prosecution: Providing incomplete information on a disclosure form is a criminal offense.
The 20-Year Lookback: Without expert defense, HMRC may attempt to assess your liabilities back 20 years. We fight to restrict this to 4 or 6 years where possible.
A disclosure is not just filling in a form. It is a legal argument regarding your behaviour. Get the argument wrong and the penalty doubles.
Once you register for the Worldwide Disclosure Facility, you have exactly 90 days to submit your calculations. Our WDF investigation specialists handle every step.
We analyse your position under Legal Privilege. We determine if WDF is the right route or if you require the immunity offered by the Contractual Disclosure Facility (COP9).
We formally notify HMRC of your intent to disclose via the Digital Disclosure Service (DDS). This secures your place in the queue and protects you from aggressive enforcement while we work.
This is where we save you money. We calculate your liability, but we also:
Our team makes a Disclosure Report with detail. We argue your case for Reasonable Excuse or Careless behaviour rather than Deliberate, drastically reducing your penalty rate.
We submit the report and handle all follow-up questions from HMRC. We negotiate the final settlement and Time to Pay arrangements if necessary.
Unlock a stress free path to tax compliance with IBISS & CO Worldwide Disclosure Facility experts secure your financial peace of mind today!
We combine the legal robustness of a tax boutique with the calculation expertise of chartered accountants.
| Feature | General Accountant | Tax Solicitor | IBISS & CO Tax Advisors |
|---|---|---|---|
| Ex-HMRC Inspectors | Rarely | No | Yes |
| Penalty Negotiation | Basic | Strong | Expert (Technical & Behavioural) |
| Liability Calculations | Yes | Often Outsourced | In-House Forensic Team |
| WDF Success Rate | Varies | Varies | 100% |
| Cost Structure | Hourly | High Hourly Rates | Transparent Fixed Fees |
Problem: A client received an HMRC letter regarding undisclosed rental income from a property in Spain. They faced a potential penalty of 35% on 10 years of income.
IBISS Solution Our team proved the error was Careless rather than Deliberate and applied Foreign Tax Credit Relief.
Result The investigation period was reduced to 6 years, and penalties were negotiated down to 0% (suspended).
The Problem: An investor had significant undeclared gains from 2017 crypto trading.
IBISS Solution: We utilised the WDF to make a voluntary unprompted disclosure before HMRC intervention.
The Result: Accepted by HMRC with minimum statutory interest and 10% penalty.
While the WDF does not offer the statutory immunity of COP9, a full and accurate voluntary disclosure makes criminal prosecution highly unlikely. We have never had a WDF client prosecuted after engaging our services.
We offer fixed-fee packages based on the complexity of your disclosure (e.g., number of years and banking lines). This ensures you know exactly what you will pay upfront, unlike hourly billing firms.
This is common for older liabilities (over 6 years). We use forensic accounting techniques to reconstruct your income in a way that is acceptable to HMRC, ensuring the disclosure can proceed.
Yes. We offer a confidential, no-obligation consultation. We will tell you honestly if you need to make a disclosure or if your tax affairs are already compliant. Unsure about the specific penalty rates? Read our comprehensive.
Do Not Wait for the Official Investigation. The Failure to Correct clock is ticking. Take control of the situation today with a team that has a 100% success rate. Speak to a WDF Tax Advisor Now
Schedule a Free 15-minute discovery call by providing your contact details, mentioning your requirements, and selecting a convenient date for the call.
I have been IBISS & CO client for past 7 years. Their team is professional and proactive who assist me in filing my overseas and UK tax disclosure.
I’ve used them for the past few years now and I am very satisfied with their services. The staff are very amicable as well. Definitely recommend them.
The response of IBISS and Co to my tax problem was rapid and professional. The advisor understood the problem and recommended
Excellent service! Provided a clear explanation to my matter in a timely manner. Very helpful and polite. Highly recommend.
“IBISS & CO provided exceptional financial guidance. Their expertise and personalized approach helped streamline our investment strategy. Highly recommend for anyone seeking top-tier financial services.”
Working with IBISS & CO was a game-changer for our business. Their insightful advice and thorough analysis led to significant financial growth. Outstanding service!
IBISS & CO exceeded expectations with their professional and strategic approach. They understood our needs and delivered results beyond our expectations. A reliable partner in finance.”
“IBISS & CO’s financial planning transformed our portfolio. Their team’s dedication and deep market knowledge ensured we made the best decisions. A trusted partner for financial success.”
IBISS & CO provided outstanding service, handling our project with precision and care. Their expertise made a significant difference, ensuring we achieved our goals efficiently.”
Partnering with IBISS & CO was a game-changer. Their dedication to excellence and proactive approach led to exceptional outcomes. Highly recommend them for any business endeavor.”
IBISS & CO exceeded expectations. Their professional team delivered top-notch results, staying committed to our needs throughout. A trusted partner in every sense.”
Working with IBISS & CO was a pleasure. Their focus on client satisfaction and detail-oriented service ensured our project’s success. They’re a reliable and highly skilled team.”
BISS & CO exceeded our expectations with their professionalism and expertise. Our project was delivered on time and flawlessly executed.
Outstanding service! BISS & CO’s attention to detail and client-focused approach made all the difference
Working with BISS & CO was a breeze. Their team is knowledgeable, responsive, and truly cares about client satisfaction.
BISS & CO delivered exceptional results on our project. Highly recommend their services for anyone seeking quality and reliability.
Explore the IBISS blog and case studies for helpful tips on tax accounting and business advice. If you need expert support just get in touch with us. The IBISS & CO expert team accountants & tax advisers is always here to help you and your business succeed.
A pay rise lands. A bonus comes through in December. Nobody sits down and decides to give up part of their Child …
Most businesses that run into trouble don’t fail because a bad idea got tested and lost. They fail because the cash ran …
Your 2025/26 Self Assessment return is due online by 31 January 2027, and you must pay any tax you owe by the …