Ireland: Recent developments in Ireland’s R&D tax credit regime

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Ireland: Recent developments in Ireland’s R&D tax credit regime

duffy.jpg

bailey.jpg

Joe Duffy


Tomás Bailey

Earlier this year, the Irish Revenue Commissioners (Revenue) published updated guidelines on Ireland's research and development (R&D) tax credit regime (the Guidelines). The Guidelines follow recent legislative amendments which expand Ireland's tax incentives for R&D activities and further enhance Ireland's attractiveness as a location for developing intellectual property. Under Irish tax law, a company can claim a tax credit of 25% of qualifying expenditure, in addition to the standard corporation tax deduction, in respect of certain expenditure incurred in carrying out R&D activities across a broad range of sectors. The tax credit is available to offset against a company's Irish corporation tax liability. Excess credits may be carried forward for offset against future profits or may be repaid to the taxpayer in certain circumstances.

Recent enhancements

The Finance Act 2014 introduced changes to improve the tax credit available for expenditure incurred by companies on R&D activities. Of particular note is the change to a volume-based regime. Previously, the tax credit available for qualifying R&D expenditure was only available on an incremental basis. The credit was limited to the amount by which expenditure on R&D exceeded the expenditure incurred in 2003 (the designated base year). Although the base year threshold had been incrementally eroded in recent years, its complete removal means that the R&D tax credit can now be claimed in respect of all qualifying expenditure incurred in accounting periods commencing on or after January 1 2015.

The Guidelines

The Guidelines provide an updated insight into Revenue's interpretation and application of the R&D tax credit regime. The Guidelines are more detailed than previous Revenue guidance and convey an increased emphasis on the scope of qualifying expenditure and the importance of supporting documentation. The Guidelines also set out Revenue's view on the appropriate treatment of expenditure incurred on outsourced R&D activities and the transferability of unused credits between group entities.

Under the legislation, costs which are not incurred wholly and exclusively in carrying on the R&D activity do not qualify when calculating the credit. The Guidelines list a number of examples of such costs, including insurance, travel, repairs, maintenance and interest. The Guidelines also provide guidance on the treatment of staff costs for the purpose of the credit.

Documenting R&D activities

The importance of maintaining accurate, contemporaneous records in support of claims for R&D tax credits is emphasised in the Guidelines. A taxpayer should maintain sufficient contemporaneous supporting documentation to demonstrate that the activities in question are qualifying R&D activities and that all costs incurred in carrying on those activities have been properly accounted for. A failure to maintain adequate records may result in a claim for the R&D tax credit being disallowed. The Guidelines confirm that electronic records are sufficient in this regard. Revenue accepts that disparities exist in record-keeping practices across different industries.

It is anticipated that the enhanced R&D tax credit regime, coupled with the new Irish Knowledge Development Box (in respect of which initial draft legislation was issued in July 2015), will further incentivise Irish headquartered companies and multinationals to locate their R&D activities in Ireland.

Joe Duffy (joseph.duffy@matheson.com) and Tomás Bailey (tomás.bailey@matheson.com)

Matheson

Tel: +353 1 232 2000

Website: www.matheson.com

more across site & shared bottom lb ros

More from across our site

CSR initiatives can sometimes venture into virtue signalling, but Ryan’s tax literacy event for schoolchildren was a genuine and necessary endeavour
Grant Thornton advanced plans to integrate its Australian firm into its US arm, as tax developments spanned law firm hires, aviation levies and digital services taxes
A new focus on early intervention and increased AI use is transforming how tax authorities are approaching TP audits, though capacity-constrained jurisdictions risk falling behind
The French administration has used AI to detect undeclared swimming pools and verandas but always includes a human in the loop, the AI in Tax Forum heard
The UK tax authority’s deputy director of large business also reassured taxpayers that HMRC will not ‘nitpick’ returns
Sucafina’s tax chief was speaking at the ITR Pillar 2 Forum in London alongside experts from HMRC and other organisations
India’s Supreme Court rattled cross‑border structuring with its Tiger Global ruling. Subsequent rule changes narrowed the impact, but significant risks around GAAR, substance and treaty access persist
The UK-based big four spin-off firm has hired Marc Lien, who declared that most AI in professional services today is ‘cosmetic’
Projected revenue losses and exemption requests are harming the project’s capability and viability
HMRC secured lengthy prison sentences in a major payroll VAT fraud case, while law firms announced tax promotions and hires
Gift this article