Ireland's tax reporting rules for foreign entities have shifted. Effective for accounting periods beginning on or after 1 January 2025, Revenue – Ireland's tax authority – has introduced enhanced reporting obligations that directly affect non-resident companies operating in or through Ireland. Missing the first compliance deadlines carries material financial exposure, including interest charges and administrative penalties under Irish tax legislation.
Ireland's updated tax reporting regime requires foreign entities with a permanent establishment (a fixed place of business through which a foreign enterprise carries on activities in Ireland) to file enhanced disclosures alongside their corporate income tax returns. Entities exceeding the applicable revenue or asset threshold must register with Revenue and submit the first enhanced report no later than nine months after the close of the relevant accounting period. Tax residency status and the applicability of any tax treaty between Ireland and the entity's home jurisdiction will determine the precise scope of obligations.
This alert explains which business categories are caught, what the threshold criteria are, and the five immediate steps international companies should take now.
What has changed and when it takes effect
Irish tax legislation has long required foreign entities to account for income arising in Ireland. The 2025 changes go further. Revenue now mandates that non-resident companies report not only their taxable Irish-source income but also certain cross-border payments, intercompany arrangements, and transfer-pricing positions that were previously captured only by broader EU directives.
The new obligations apply to accounting periods commencing on or after 1 January 2025. For a calendar-year entity, the first affected period closes on 31 December 2025. The compliance deadline for filing falls nine months after period-end – meaning the earliest affected entities face a deadline in late September 2026.
Withholding tax obligations on Irish-source payments are also affected. The updated rules clarify that certain royalties, interest, and dividend streams paid to non-residents must be reported in greater detail, even where a tax treaty reduces or eliminates the withholding tax rate. Relying on treaty relief does not remove the reporting obligation – it changes only the amount payable, not the duty to disclose.
For detailed advice on structuring Irish tax positions under the new regime, see our tax law services in Ireland.
Who is affected – threshold criteria and business categories
The enhanced obligations apply primarily to three categories of foreign entity.
Non-resident companies with a permanent establishment in Ireland. Any foreign company that maintains a fixed place of business in Ireland. an office. Branch, construction site operating beyond the treaty threshold period. Alternatively, a dependent agent – falls within scope. The question of whether a permanent establishment exists is determined under Irish tax legislation and, where relevant, the applicable tax treaty. Many international companies underestimate this risk, particularly where sales agents or digital infrastructure is involved.
Entities above the revenue or asset threshold. Foreign companies whose Irish-source revenues or Irish-held assets exceed the prescribed thresholds must register separately and file the enhanced disclosure form. Revenue has confirmed that the thresholds are applied per Irish-resident entity or branch, not at group level. A smaller Irish branch of a large multinational may still fall below the threshold independently – but that assessment must be made explicitly and documented.
Entities claiming treaty benefits. Foreign entities that rely on a tax treaty to reduce withholding tax on Irish-source payments must now submit a separate treaty-position disclosure with each return. This applies regardless of whether the entity has a physical presence in Ireland. Non-compliance risks denial of treaty benefits in addition to standard penalties.
For companies also managing corporate law obligations in Ireland, our corporate law services in Ireland address registration, governance, and related compliance requirements.
To receive an expert assessment of your Irish tax reporting position under the 2025 rules, contact us at info@ferrazwhitmore.com.
Immediate actions for international companies
The following five steps should be initiated before the close of the first affected accounting period.
- Confirm tax residency status and permanent establishment exposure. Conduct a structured review of all Irish operations, digital presences, and agent relationships. Document the outcome. Revenue's position on what constitutes a permanent establishment has tightened, and assumptions that held under earlier guidance may no longer be reliable.
- Assess withholding tax positions and treaty reliance. Identify every Irish-source payment stream – dividends, interest, royalties, service fees – and confirm whether a withholding tax obligation applies. Where a tax treaty reduces the rate, prepare the required treaty-position disclosure in advance of filing.
- Register with Revenue if not already registered. Foreign entities that cross the threshold for the first time in the 2025 period must register before the filing deadline. Late registration does not suspend the obligation – it adds a further exposure.
- Review intercompany and transfer-pricing documentation. The enhanced disclosure requires a summary of intercompany arrangements and pricing methodology. Groups that have not updated their transfer-pricing documentation to reflect current Irish standards should do so now.
- Monitor the position as it applies in comparable EU jurisdictions. Ireland's changes align broadly with EU-level reporting directives. Companies operating across multiple European jurisdictions should cross-reference this alert with similar developments elsewhere – including our alert on 2025 tax reporting changes in Portugal.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our tax law practice supports international companies facing corporate income tax, withholding tax, and permanent establishment obligations in Ireland and across Europe. We act for multinational groups, institutional investors, and in-house legal teams who need clear, practical guidance on cross-border tax compliance. Engaging a lawyer in Ireland with cross-border experience. or a law firm in Ireland and the EU that understands both civil law and common law reporting regimes. materially reduces the risk of missed deadlines and Revenue challenges. To discuss how Ireland's 2025 tax reporting requirements apply to your business, contact us at info@ferrazwhitmore.com.
Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.