Irish Revenue iXBRL Reporting

Irish Revenue Logo
In Finance Act 2012, section 884 of the Taxes Consolidation Act 1997 was amended to extend the definition of a Corporation Tax return to encompass Financial Statements. This, coupled with the existing e-filing legislation, establishes a statutory basis for the mandatory submission of electronic Financial Statements as part of the tax return.

iXBRL financial statements are submitted as part of the CT1 tax return through Revenue Online Service (ROS). If financial statements are submitted and fully tagged in iXBRL there is no need to complete the “Extracts from Accounts” section of the Form CT1.

Financial Statements contain key tax risk data. The ability to accept Financial Statements in machine readable format via ROS will greatly enrich the data set available to Revenue for the purposes of risk analysis. Over time, the electronic data received has the potential to allow Revenue to:

  • Compare key accounting ratios across companies;
  • Automatically prepare company profiles;
  • Automatically generate statistical information for management purposes;
  •  Perform basic audit checks / reconciliations (e.g. reconciling loss relief/claims within a group); and
  • Develop predictive analytical models to identify risk.

In addition, electronic Financial Statements will be available to help caseworkers prepare for audits and other Revenue interventions.


Irish Revenue XBRL Taxonomies in Report Authority


The obligation to file electronic Financial Statements was introduced on a phased basis. All Corporation Tax payers meeting the Phase I or Phase II criteria are affected by the changes. These include:

  • Irish Tax Resident Companies
  • Parents & Subsidiaries
  • Branches/Agencies of Non-Resident Companies
  • Companies not bound by the Companies Acts

Inactive companies and companies in liquidation may not be required to file electronic Financial Statements with their Form CT1. However, in exceptional circumstances, Revenue retains the right to request electronic Financial Statements from such companies.

Irish XBRL Taxonomies.

Report Authority’s XBRL Taxonomy Library contains the full set of Irish Taxonomies required by the Irish Revenue iXBRL Reporting Programme including:

  • Irish Extension of the FRC Taxonomies
  • Irish Extension of the FRC Taxonomies
  • UK IFRS Taxonomy
Irish FRC XBRL Taxonomy Presentation Linkbase
Simplified XBRL and iXBRL Reporting


Report Authority has been designed by accountants, for accountants and minimises any complexity that XBRL reporting has been known to introduce.

With a focus first and foremost on being a tool that can assist an accountant prepare and automate sets of financial statements, Report Authority can successful integrate XBRL into the accounts production process with minimal fuss.


If your accounts have already been produced but you require iXBRL versions of them, you can import entire Microsoft Word documents or content from Microsoft Excel workbooks to be XBRL tagged and converted to iXBRL format. This is useful if;

  • you need the previous period’s accounts in iXBRL format prior to the implementation of Report Authority; or
  • you do not have control of the creation of the AFSs.

Alternatively, you can utilise the full set of functionality to create, automate, validate and replicate your accounts from within Report Authority itself.


Importing an Existing Microsoft Word Document
Integrate to Data in Excel or Relational Database


Companies may have to produce many iXBRL documents for submission to the Irish Revenue on ROS – one for each entity in the group.  This can be a significant burden on finance teams because;

  • manually XBRL tagging each entity is time-consuming, and;
  • it is difficult to achieve consistency in content and XBRL tagging across all entities in the group.

Report Authority’s templating functionality alleviates this burden because the content, XBRL tags and data mappings of a segment can be determined by the template – any changes of which will be cascaded automatically and consistently to all entities in the group.


Will your submission be accepted by the Revenue?  Does your accounts cast and cross cast?  Know the answers to these questions instantly with Report Authority’s interactive validation functionality.


Interactive validation results in the Validation panel


Automate your Annual Financial Statements (AFSs) by linking facts in the report to external data sources such as Oracle HFM, Planning & Essbase, and Microsoft Excel.

Easily calculate facts based on values of others, cross-reference facts and mix presentation scale – without introducing rounding differences.