For reasons of taxpayer confidentiality, the Revenue Commissioners cannot comment on the tax affairs of individual Bodies or Trusts in receipt of Charitable Tax Exemptions. In addition, the Revenue Commissioners do not collate data in respect of Charitable Tax Exemptions in a manner that facilitates the extraction of separate costings for specific groupings, for example religious bodies.
However, the estimated overall Income Tax/Corporation Tax cost of the Charitable Tax Exemption in respect of charities, colleges, hospitals, schools and friendly societies are available via the Revenue website at www.revenue.ie. Information in regard to the cost of tax relief for Donations to eligible charities and other approved bodies is also available via the Revenue website. The information can be accessed directly from the links supplied below. The second link contains specific data in relation to both Income Tax and Corporation Tax including detailed information in relation to the costs of Credits, Allowances and Reliefs.
http://www.revenue.ie/en/about/statistics/index.html
http://www.revenue.ie/en/about/statistics/index.html#section4
These links reflect data up to and including 2012, which is the latest year where the relevant returns have been filed and fully processed by the Revenue Commissioners. Data for later years will be published in due course.