Irish construction payment is governed by the Construction Contracts Act 2013. Payment claim notices and payment responses run to a statutory timetable, with a right to refer disputes to adjudication. Construction services are commonly subject to the 13.5% reduced VAT rate and, between businesses, the reverse charge.
Not your whole portfolio. One live job, one certificate. If it does not save you time the first time you use it, walk away and take your data with you.