78% of all documents filed with the CRO in the last year were e-filed, either through a secretarial software package or via CORE - https://core.cro.ie. Over 370,000 documents are completed using the e-filing system every year (often for free).


There are two ways to submit forms electronically:

1) CORE (Companies Online Registration Environment) is the online filing facility of Companies Registration Office. It has been developed to allow you, as a CRO customer, to view in a secure, private environment, up to date information on companies for which you file.

CORE will enable you to :-

  • File documents online (Some documents can be filed for free)
  • Check the status of your companies in lists which can be sorted in various orders
  • Receive notification of filings for companies in your portfolio and of changes in the status of those documents
  • Watch your companies
  • Obtain your CRO Account balance, transactions and statements

If you require any assistance you can email the Electronic Filing Section or 01-804 5355/5374. You can telephone 1890-252536* / 01-8045394 regarding the content of the form B1 being electronically filed.

*Note that the rates charged for the use of 1890 (LoCall) numbers may vary among different service providers

CORE FAQ's: Click here for Electronic Filing FAQs.

2) Secretarial software packages:

If you are working through one of the secretarial software vendors that has a relationship with CRO, you can file some forms electronically and sign using ROS signatures.


You can also:

Reserve Company Name: It is possible to Reserve a Company Name. It is not possible to reserve a business (trading) name.

Electronic Filing Agent: There is also information regarding the appointment of an Electronic Filing Agent. An electronic filing agent is a person appointed by the company to submit most documents on their behalf.

Filing accounts fully electronically:

You can file financial statements fully electronically, the requirement for financial statements filed with the CRO to include handwritten signatures of Directors, Auditors etc. is removed and, instead, requires that the signatures appear in typed form on each document

It is also possible to file an annual return with pdf financial statements (accounts) and use can be made of an optional digital signing system which means it is possible to file a B1 form and financial statements completely online in certain circumstances.

Please see video below for help on efiling a annual return (B1 Form)


ROS signatures:

CRO has implemented a system of electronic signature which re-uses Revenue's ROS system. Therefore, any person who has registered with ROS and has obtained a digital ROS cert can sign CRO foms online.