Marie Louise O'Donnell (Independent) | Oireachtas source

It states:

For example, a family consisting of a couple and two children with a gross household income of €70,000 or less will receive 100% of the amount allowable in respect of their application. A reduced level of support can be provided in cases where such families have income more than €70,000.

That is the only reason I asked the question. I do not know where the tapering comes in.