How to Swear an Affidavit in Ireland

Swearing an affidavit is a formal legal process that must be done correctly for the document to be valid in court. Whether you need an affidavit for family law proceedings, a probate application, a commercial dispute, or any other legal matter, this guide explains the process step by step.

What Is an Affidavit?

An affidavit is a written statement of fact sworn on oath (or affirmed) before an authorised person. It is the primary means by which written evidence is submitted in Irish court proceedings. Swearing a false affidavit constitutes the criminal offence of perjury.

Before Your Appointment

Have the Affidavit Drafted

The affidavit should be drafted by a solicitor in the format required by the Rules of Court. It must include the court title, your full name and address, numbered paragraphs setting out the facts, proper exhibit references, and space for the jurat (the formal endorsement section at the end).

Read It Carefully

Before attending to swear, read the affidavit thoroughly. Make sure every fact is accurate and that you understand everything stated. Once sworn, you cannot easily change the contents.

What to Bring

• The affidavit — unsigned (you sign during the swearing)
• Valid photo ID — passport preferred
• Any exhibits (documents referenced in the affidavit) — with exhibit labels attached
• All pages should be present and in order

The Swearing Process

Step 1: Identity Verification

The person administering the oath (Commissioner for Oaths, solicitor, or Notary Public) verifies your identity by examining your photo identification.

Step 2: Confirmation of Understanding

You confirm that you have read the affidavit, that you understand its contents, and that everything stated is true to the best of your knowledge and belief.

Step 3: The Oath or Affirmation

You take the oath — traditionally by placing your hand on a Bible (or other religious text of your choosing) and swearing that the contents are true. If you prefer not to swear on a religious text, you may instead make a solemn affirmation, which has exactly the same legal effect. The wording is: "I solemnly, sincerely and truly declare and affirm that the contents of this affidavit are true."

Step 4: Signing

You sign every page of the affidavit and every exhibit in the presence of the person administering the oath. They observe you signing each one.

Step 5: The Jurat

The person administering the oath completes the jurat — the formal endorsement at the end of the affidavit. The jurat records: when the affidavit was sworn, where it was sworn, who swore it, how the deponent was identified, and the name and capacity of the person who administered the oath. They sign the jurat and apply their stamp.

Important Rules

• Do not sign before the appointment — the oath administrator must witness your signature
• Initial all alterations — if there are any handwritten corrections, both you and the oath administrator must initial them
• Every page signed — you must sign each page of the affidavit and each exhibit
• Independence — ideally, the solicitor who prepared your affidavit should not be the same person who administers the oath
• Exhibits properly labelled — each exhibit must be signed by both you and the oath administrator and bear the correct exhibit number

Common Mistakes

• Signing the affidavit before attending — invalidates the swearing
• Forgetting photo ID — the oath cannot be administered without identity verification
• Missing exhibits — if exhibits are referenced but not attached, the affidavit is incomplete
• Using hearsay without attribution — information from others must be identified as such
• Unnumbered paragraphs — the Rules of Court require sequential numbering

Oath vs Affirmation

You have the right to choose between taking an oath on a religious text or making a solemn affirmation. Both have identical legal standing. The choice is personal and no one can compel you to swear on a particular text. Courts and legal professionals treat both equally.

Frequently Asked Questions

Where can I swear an affidavit in Ireland?

Before a Commissioner for Oaths, a practising solicitor, a Notary Public, or a court official.

Do I need to bring my own Bible?

No. The office will have religious texts available. You can also choose to affirm instead of swearing on a religious text.

What if I make a mistake after swearing?

You will need to swear a supplemental or corrected affidavit. The original cannot be amended after swearing.

Need to Swear an Affidavit in Cork?

Hugh Phelan can administer oaths and affirmations for affidavits. Contact Hugh Phelan’s office at 021-489-7134 or email info@phelansolicitors.com.