v3.26.1
Deferred and current taxation - Effective corporation tax rate (Details)
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Reconciles the statutory rate of Irish corporation tax to the Company's effective corporation tax rate      
Statutory rate of Irish corporation tax on (loss)/profits 12.50% 12.50% 12.50%
Non-Irish profits and losses subject to other tax rates (2.90%) (3.80%) (2.40%)
Other movements 0.70% 1.00% (0.20%)
Total effective rate of taxation on (loss)/profits 10.30% 9.70% 9.90%