New York-based Tully Rinckey has joined the small but growing number of American firms with an outpost in Ireland, and the firm says the Trump administration's tax law overhaul deserves part of the credit.

Founder Matthew Tully said the sweeping tax reforms paved the way for the firm to expand internationally but maintain its headquarters in the United States under a new incorporation model.

The 75-attorney firm began probing the idea of international expansion three years ago and settled on Dublin as its first destination, in part because of potential tax advantages.