I am informed by the Revenue Commissioners that in the absence of a claim from a taxpayer, Revenue has no way of knowing that an individual is entitled to an additional tax credit. There is, therefore, no basis on which the monetary value of unclaimed tax reliefs can be determined.
I would add, however, that procedures for allowing some of the more significant credits/reliefs to PAYE workers have been automated and streamlined over recent years either through the introduction of Tax Relief at Source (TRS), where this has proved feasible, or through the Automatic Carry Forward (ACF) of certain recurring reliefs. For example, Mortgage Interest Relief and Medical Insurance Relief are now provided at source through the taxpayer obtaining a reduction in repayments or premiums equivalent to the tax relief. Certain recurring reliefs, like those for trade union subscriptions and service charges, once claimed, are generally allowed on an ongoing basis and re-appear each year in the taxpayer's certificate of tax credits. In the case of non-recurring reliefs involving variable amounts, such as Medical Expenses, it is up to each individual taxpayer concerned to claim his or her entitlements, as Revenue has no other way of ascertaining what these are. I understand that regular claimants of Medical Expenses relief are automatically sent a Med 1 claim form by Revenue.
In February 2005, Revenue launched a range of new self-service options for PAYE taxpayers, using the Internet, mobile text messaging or touchtone phone to claim, for example, tax relief for service charges and Trade Union subscriptions or to request claim forms. These facilities were widely advertised in the media and were included in the information leaflets issued with the Tax Credit Certificates for 2005 and 2006. Additional self-service channels were introduced at the beginning of June this year, including a full Internet service "PAYE On-Line". PAYE workers can now access their Revenue records over the Internet, request a balancing statement and claim or amend their tax credit and personal details. Full details of how to access these services are available on Revenue's website www.revenue.ie. I understand that Revenue is in the process of issuing a comprehensive information leaflet about these new on-line services to every PAYE taxpayer in the country.