Intruder alarms may be used along with other renovations in the Home Renovations Incentive (HRI) Scheme. The Incentive provides for tax relief by way of an Income Tax credit at 13.5% of qualifying expenditure on repair, renovation or improvement works carried out on a main home or rental property by qualifying Contractors. The works must cost a minimum of €4,405 (before VAT) per property, which will attract a credit of €595 per property. Where the cost of the works exceeds €30,000 (before VAT) per property, a maximum credit of €4,050 per property will apply. http://www.revenue.ie/en/tax/it/reliefs/hri