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Authentication Unit Function

When using Irish documents overseas, for business or personal reasons, you might need to 'authenticate' or 'Apostille' them. The Department of Foreign Affairs are the competent authority who confirm that a signature, seal or stamp is from an Irish public official / body. Our offices in Mount Street and Cork issue these physical stamps on your document. Authenticating / Apostilling a document doesn't mean that the Department of Foreign Affairs is verifying that its contents are accurate or that the Department approves of its contents.

Only Irish public documents (including notarised, private company documents with a clear Irish link) can be processed.

We cannot advise on whether a document requires authentication. This is a matter for you to find out. Contact the authorities in the country where the document will be used to check their requirements.

Only the Authentications Unit based in Dublin / Cork can issue these stamps. Embassies and Consulates cannot issue an Apostille or authentication stamp. 

How to apply

What you need: 

However you apply, we will require the following:

  • The document you want to authenticate / Apostille
  • cover letter with the following information
    • Your name
    • The country you intend to use the document
    • A phone number (required for credit / debit card payments)
    • A contact email
    • The address where documents are to be returned (if via post / drop-off service)
  • The fee


  • €40 per Authentication / Apostille stamp
  • €100 per Adoption Pack
  • €10 per export of goods document (for example - HPRA, Certificate of Origin, EPA certificate)

Postage is included in this fee.

Payment can be made by Irish bank draft / postal order, or we will contact you at the number provided for payment by credit/debit card.  Bank drafts can be made payable to the Department of Foreign Affairs. 

We do not accept cash or AMEX cards.

Three types of service:

1. Walk-in service (Dublin office only) 

We are operating a walk-in service from our office at 42 – 47 Lower Mount Street, Dublin 2. The service operates on Monday, Tuesday, Thursday and Friday, and will close on Wednesdays. The following rules apply:

  • No walk-in service will operate on Wednesdays. Any documents brought in on Wednesday will be treated as a drop-off document. 
  • Opening hours are:
    • 9.30 am – 12.30 pm
    • 2.30 pm – 3.30 pm
  • maximum of five documents can be authenticated / apostilled while you wait. Our target turnaround time is thirty minutes. If you have more than five documents, you can use our drop-off service and request collection.
  • If large bundles of documents are broken into smaller bundles by the same organisation, these will be treated as drop-off bundles as above. For example, if twenty documents are broken into four groups of five by the same company.
  • Queries can be directed to our phone lines, or via our contact us form 

2. Postal Service

We are currently accepting documents by post. Our turnaround times for this service is, on average, three to seven working days from date of receipt.

Send your documents by registered post, and make a note of the tracking number. Documents will be returned by registered post at no additional cost. We bear no responsibility if your item does not arrive to our offices.

Post documents to:

Rest of Ireland and Worldwide Munster Region

Authentication Section

Consular Division

Department of Foreign Affairs

80 St. Stephen's Green

Dublin 2

D02 VY53

Authentication Section

Consular Division

Department of Foreign Affairs

1a South Mall


T12 TA46

3. Drop-off service (Dublin only)

You can drop documents, a cover letter and the appropriate fee to our Dublin Offices. They will be returned by registered post. Or you can request collection, and we will phone you when they are ready. This service is not available from our Cork Office.

Please ensure your envelope is marked for the attention of "Authentications Unit".

There are two drop-off locations operating between 9 am – 5pm weekdays:

Authentications Unit, Knockmaun House, 42-47 Lower Mount Street, Dublin 2

Authentications Unit, Iveagh House, 80 St Stephens Green, Dublin 2

Contact Us

Enquiries regarding the service can be directed here. The mailbox is monitored during work hours. If your request is extremely urgent, please contact us by phone.

Our phone lines are open weekdays between 9.30 am – 12.30 pm at +353 (1) 408 2174. 

Verify an Apostille or Authentication Stamp

The online electronic register enables you to verify the authenticity of an Apostille or Authentication stamp issued by the Department of Foreign Affairs in Ireland.