Ireland's official data for the first quarter of 2026 were updated on Thursday, with the country's preferred gauge of underlying economic activity - modified domestic demand - downgraded to a 0.3% quarter-on-quarter increase from the prior estimate of 0.6%.
The headline measure of gross domestic product for the quarter was also revised less negative, with GDP now shown as down 7.0% quarter-on-quarter, compared with an earlier estimated decline of 12.1%.
Irish statisticians prefer modified domestic demand when assessing domestic economic strength because headline GDP can be skewed by activity in the large multinational sector. That sector has created measurement distortions that can significantly affect the headline figures.
Looking back to 2025, modified domestic demand was revised to annual growth of 4.7%, a slight downward adjustment from the initial 4.9% reading. The measure has nevertheless recorded robust expansion in recent years.
Separately, Ireland's GDP for 2025 was revised to an increase of 8%, lower than the first estimate of 12.3%. The recorded growth last year was driven in large part by a substantial rise in pharmaceutical exports to the United States - a surge attributed primarily to tariff-related stockpiling. That stockpiling began to reverse late in the year, contributing to subsequent volatility in the measured output.
For the fourth quarter of 2026, GDP was updated to show a quarter-on-quarter decline of 3.6%, an improvement from the previously reported 4.2% drop. On a year-on-year basis, first-quarter GDP was revised to a 13.0% decline, compared with the earlier estimate of a 17.1% decrease.
In annual comparison terms, modified domestic demand rose 3.4% year-on-year in the first quarter, down from the earlier published 4.3% figure.
These revisions underscore the challenge of interpreting headline GDP in an economy with a large multinational presence and large swings in export activity. The updated numbers adjust both short-term quarterly dynamics and annual totals but do not alter the statistical office's stated preference for modified domestic demand as the best indicator of domestic economic health.