Ireland relaxes rules on AT1 tax Tom Young November 20, 2015 X LinkedIn Email Show more sharing options Copy Link URLCopied! Print X LinkedIn Email Turlough Galvin and Gerry Thornton at Matheson explain how coupons on additional tier 1 capital will soon be deductible for Irish corporation tax purposes Unlock this content. The content you are trying to view is exclusive to our subscribers. To unlock this content: Take a Free Trial or Login