Welcome to the Companies Registration Office Ireland

The Companies Registration Office (the CRO) is the central repository of public statutory information on Irish companies, business names, and limited partnerships

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Peak Filing 2026: Be prepared!

2 November 2026
November is the busiest time of the year for the filing of Annual Returns. You can draft your Annual Return now and be ready to submit.  Time in CORE will be limited during Peak Filing; sessions will time out after 10 mins of inactivity to allow others to file. If drafting your return now –
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Daily Processing Times 02/11/2026

2 November 2026
As of 02 November, we are processing submissions received on the following dates: -Ordinary A1 Online Scheme: 19 October 2026 -Fé Phrainn A1 Online: 22 October 2026 -RCN Company Name Reservations: 02 November 2026 -RBN1 Business Names: 16 October 2026 -B2 Company Address: 27 October 2026 Forms C1s, C1As, C1Bs, add F8s for the 30
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NOTICE: Extended CORE and RBO downtime between 14:00 Friday (30/10/2026) and 21:00 Sunday (01/11/2026)

30 October 2026
Due to essential server maintainance work, CORE and the RBO will be unavailable between 14:00 Friday (30/10/2026) and 21:00 Sunday (01/11/2026). Published 30/10/2026
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