The basis of Irish tax law is that Irish residents are liable to tax on their worldwide income. However, the Finance Act, 1994, introduced changes in the rules regarding residence for tax purposes which are of benefit also to individuals who work abroad for part of the year. Section 154 Finance Act, 1994, provides that where an Irish resident works abroad, other than in the UK, for significant periods of the year, totalling not less than 90 days in the year, he or she may be entitled to a proportionate reduction in income, for the purposes of calculating the liability to Irish tax for that year.