DAC6: Reporting Cross-Border Tax Arrangements

Key Takeaways

• DAC6 cross-border tax disclosure requires reporting of certain tax arrangements that cross EU borders.
• Reportable arrangements are identified by hallmarks grouped into categories A through E.
• A common mistake is assuming only schemes designed to dodge tax are reportable.
• Reporting falls due within 30 days, and the duty usually sits first with the intermediary.

What It Is: DAC6 Cross-Border Tax Disclosure

DAC6 amends the EU Directive on Administrative Cooperation (DAC) to add mandatory disclosure of reportable cross-border arrangements. Adopted on 25 May 2018, it targets arrangements that touch more than one EU member state, or a member state and a third country, and that display certain risk features.

The point is early intelligence. Tax authorities use DAC6 reports to spot potential tax avoidance, evasion, and aggressive planning before assessments and audits, and they exchange the data through a central EU directory so every member state can see the patterns.

The Intuition

Tax authorities are always a step behind clever structuring. By the time a scheme shows up in a tax return, it is often already in use across many clients. DAC6 flips the timing by catching the arrangement when it is set up, not after the fact.

The intuition is a smoke alarm rather than a fire investigation. The hallmarks are the smoke. They do not prove a scheme is abusive, but they flag features common to aggressive planning so authorities can look earlier and share what they find.

How It Works

An arrangement is reportable if it is cross-border and meets at least one hallmark. Hallmarks fall into five categories, A through E. Some hallmarks only count if a main-benefit test is met, meaning a key advantage of the arrangement is a tax benefit. Others, such as those involving the circumvention of information-exchange rules or certain transfer-pricing features, are reportable regardless of motive.

The duty to report normally falls first on the intermediary, broadly defined to include tax advisers, accountants, lawyers, consultants, and banks that design, market, organize, or help implement the arrangement. Where legal professional privilege or the absence of an EU intermediary applies, the obligation can shift to another intermediary or to the taxpayer. Reporting is due within 30 days from the relevant triggering event, and authorities share the reports through the DAC6 central directory.

Worked Example

Suppose a corporate group based in one member state sets up a financing structure routing payments through a company in another member state, partly to reduce overall tax. A tax adviser designs it.

The adviser checks the hallmarks. The structure meets a category that requires the main-benefit test, and a tax advantage is indeed a main benefit, so it is reportable. The adviser, as the intermediary, files the report with its national tax authority within 30 days of making the arrangement available. If the adviser were exempt due to privilege, it would notify another intermediary or the taxpayer, who would then report. The data joins the EU central directory for other authorities to see.

Common Mistakes

1. Thinking only abusive schemes count. Some hallmarks are reportable regardless of intent. An arrangement can be perfectly legal and still trigger a DAC6 report.

2. Assuming the taxpayer always reports. The duty usually starts with the intermediary. The taxpayer reports mainly when no EU intermediary exists or privilege applies.

3. Missing the 30-day clock. Reporting deadlines run from a specific triggering event. Treating it as an annual or end-of-year task risks a late filing.

4. Ignoring the main-benefit test nuance. Some hallmarks require the main-benefit test; others do not. Applying the test to the wrong hallmark leads to wrong conclusions.

5. Overlooking cross-border scope. A purely domestic arrangement is not reportable under DAC6. The cross-border element is essential to the trigger.

Frequently Asked Questions

What is DAC6 cross-border tax disclosure in simple terms? DAC6 is an EU rule that makes advisers or taxpayers report certain tax arrangements that cross borders. It gives tax authorities an early warning about structures that may indicate aggressive tax planning.

How does DAC6 affect investment decisions? DAC6 raises the compliance load on cross-border structuring, so advisers must flag and report qualifying arrangements. For investors using international structures, it means less secrecy and a real risk of penalties for non-reporting.

What is a real-world example of DAC6 reporting? A cross-border financing structure designed partly for a tax benefit can meet a hallmark, so the adviser files a report with its tax authority within 30 days, and the data is shared across the EU.

How can advisers comply with DAC6 effectively? Screen every cross-border arrangement against the five hallmark categories early, document the main-benefit test where relevant, and diarize the 30-day deadline from the triggering event.

How is DAC6 different from anti-money-laundering reporting? DAC6 targets cross-border tax arrangements and feeds tax authorities. Anti-money-laundering reporting targets suspicious transactions and feeds financial intelligence units. They serve different goals and different agencies.

Sources

1. European Commission, Taxation and Customs Union. "DAC6." https://taxation-customs.ec.europa.eu/taxation/tax-transparency-cooperation/administrative-co-operation-and-mutual-assistance/directive-administrative-cooperation-dac/dac6_en
2. Bloomberg Tax. "What Is the DAC6 Mandatory Disclosure Regime?" https://pro.bloombergtax.com/insights/international-tax/complying-with-dac6/
3. Osborne Clarke. "Disclosure of cross-border tax planning arrangements: what do intermediaries need to know about DAC6?" https://www.osborneclarke.com/insights/disclosure-cross-border-tax-planning-arrangements-intermediaries-need-know-dac6
4. Bird & Bird. "EU DAC6: ECJ further clarifies the mandatory disclosure obligation." https://www.twobirds.com/en/insights/2024/global/ecj-further-clarifies-the-mandatory-disclosure-obligation

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.