Hi RMCF, saw this on Revenue website under Customs and excise:
"No additional duty or tax will be charged on goods bought duty and tax paid (e.g. in shops, supermarkets etc.) in another EU country, provided the goods are for your personal use.
If your purchases are equivalent to or less than the quantities shown in the table they will, generally speaking, be regarded as for personal use. If you exceed these quantities you may have to show that the goods are for your personal use.
GOODS MAXIMUM QUANTITY
Cigarettes 800
Cigarillos 400
Cigars 200
Smoking Tobacco 1kg
Spirits (whiskey, gin, vodka, etc.) 10 litres
Intermediate Products (e.g. port, sherry,etc.
but not including sparkling wine) 20 litres
Wine (of which only 60 litres can be sparkling) 90 litres
Beer 110 litres"