Irish citizenship by naturalisation: what you need, and what has to be certified

Five ways to apply

Pick the route that matches your situation before you gather anything, because the document list changes with the route.

1. Adult with five years' reckonable residence. You have lived legally in the Republic of Ireland and meet the residence test below.
2. Spouse or civil partner of an Irish citizen. Married or in a civil partnership for at least three years, living together, with three years' residence on the island of Ireland.
3. Irish descent or Irish associations. Assessed under section 16 of the 1956 Act, where the Minister may waive conditions. Scored on your connection to Ireland.
4. On behalf of a child under 18. A parent, guardian or person in loco parentis applies. School letters covering the last three years are central to these applications.
5. Refugee or stateless person. Five years of reckonable residence counted from the date refugee status was granted.

Every applicant, whichever route, must also be of good character, intend to live in Ireland afterwards, and be willing to attend a citizenship ceremony and make the declaration of fidelity.

Residency: the 5-in-9 rule

For a standard adult application you must show:

• One full year of continuous residence in the twelve months immediately before the date you apply, and
• Four further years — 1,460 days — within the eight years before that. Leap years add a day.

Only time held under a qualifying immigration permission counts. This is called reckonable residence. If you are applying as the spouse or civil partner of an Irish citizen, the test is three years of residence on the island of Ireland within the previous five, plus one continuous year immediately before applying.

Citizens of the EEA, Switzerland or the UK do not submit a reckonable residence calculation. Instead you provide documentary proof of your history in Ireland — and you must have held that nationality for more than five years before applying. If you have held it for five years or less, you apply under the non-EEA rules.

The 70-day absence rule

In the twelve months immediately before your application date, you must not have spent more than 70 days outside Ireland. The qualifying year is counted back exactly twelve months from the day you apply.

• The day you left and the day you returned are not counted.
• Between 70 and 100 days, you must explain each absence in the residency section of the form. The Minister decides case by case whether the circumstances were exceptional, and up to 30 extra days may be allowed for a rare or unavoidable event.
• Over 100 days there is no discretion at all. The application is ineligible and the fee is lost.

Which stamps count

Non-EEA applicants can check their own dates with the official Naturalisation Residency Calculator. It does not work for refugees, and it is not needed for EEA, Swiss or UK nationals.

Proving identity: the 150-point test

You must upload certified copies of identity documents totalling 150 points. One valid passport does the whole job. If you do not have one, you build up to 150 with a combination.

An expired passport under a year old (75) plus a certified IRP card (75) reaches 150. Documents must be legible, under 5MB, and show your name, date of birth and photograph where applicable.

Since 20 April 2023 you no longer post your original passport. You submit a certified colour photocopy of the biometric page together with the completed passport certification form. A small random sample of applicants is later asked to produce the original.

Proving residency, year by year

Separately from identity, you must reach 150 points of residency evidence for every year you are claiming, and at least one of those documents must be a strong official document. Two or three documents per year is the realistic target.

Every document must show your name, an Irish address, a date falling inside the correct year, and evidence of real activity. Three phone bills will not carry a year on their own — that is three supporting documents and no strong one.

If your situation is not standard

Living in State-supported accommodation, on a dependent permission, or in a household where no bill is in your name are all common. Upload a letter from the relevant State body or housing authority and attach a short cover note explaining the position. An affidavit is a last resort, not a shortcut.

Special provisions worth knowing

• Doctors in the HSE or voluntary hospitals may use a Medical Practitioner Employment History Summary as proof of residence.
• Dependent young adults aged 18 to 23 may use a letter from their school or college showing registration and attendance dates.

Applying through marriage or civil partnership

On top of the residence proofs, you and your Irish spouse or civil partner must each supply three separate proofs of address at the same address covering the three months immediately before you apply — six documents in total. You also need a certified copy of your partner's proof of Irish citizenship, a certified copy of the marriage or civil partnership certificate, and the signed statutory declaration.

Certifying your documents

A certified copy is a photocopy that an authorised person has confirmed is a true likeness of the original. Certification is mandatory, and getting it wrong is the single most common reason an otherwise good application is sent back.

Who is authorised to certify

• A practising solicitor
• A Peace Commissioner
• A Commissioner for Oaths
• A Notary Public

A friend, a colleague, your employer or a member of An Garda Síochána cannot certify these documents or witness the declarations. Documents signed by an unauthorised person will delay your application.

How it is done

1. Make a full colour photocopy of the original document.
2. Download the relevant certification form from the ISD website and bring it with you.
3. Bring both the original and the photocopy in person. Certification cannot be done by post, by email, or with a scanned signature.
4. The certifier completes the form, then signs and dates both the copy and the form, giving their name and role.
5. Upload the certified copy and the completed certification form. Missing the form is a very common error.

Documents in another language

Anything not in English or Irish needs a certified translation by a professional translation service, with the translator's contact details and signature, uploaded alongside a copy of the original.

Public documents from an EU country, Iceland, Liechtenstein, Norway or Switzerland — birth, marriage, death and divorce certificates — are accepted as genuine without legalisation. If you obtain a Multilingual Standard Form from the issuing authority, you do not need a translation at all. Ask for it at the same time as the certificate; it is usually free.

Declarations and affidavits

Depending on your route you may need to complete and upload:

• A statutory declaration of character for adult applicants
• A declaration of consent from guardians, for minors
• A spousal or civil partner declaration, signed by your Irish partner in front of an authorised witness after you have signed your own part
• A sworn affidavit, only where a required document cannot reasonably be obtained

All applicants must upload a certified copy of their birth certificate.

Applying online, step by step

1. Check eligibility before you spend anything

   Run your dates through the residency calculator, count your absences for the last twelve months, and confirm there are no gaps in permission. The €175 is not refunded if you are found ineligible.

2. Gather and certify everything first

   Identity to 150 points, residency to 150 points for each year, birth certificate, plus any declarations your route requires. Get it all certified in one visit rather than several.

3. Create an account on the Online Form Portal

   This is the ISD Online Forms Portal at inisonline.jahs.ie. It is a different system from the Customer Service Portal you will use later for queries.

4. Complete the form and upload documents into the correct sections

   Choose your application type, then work through each section. Files go into their assigned year or tab — documents filed in the wrong place are treated as missing.

5. Save your own copy before submitting

   Take screenshots or save a PDF of the completed form. Once you submit, you cannot edit it and you will not see it again.

6. Pay the €175 fee and submit

   Paid online by card at the end of the form. The application is not processed until payment clears.

Upload rules

• PDF or JPEG only
• Each file under 5MB
• One document per file — never merge several documents into a single PDF
• Name each file clearly, for example “John Kelly — Bank Statement Jan 2024”
• Do not upload the same file into more than one year
• Some fields accept one file only; others accept several. Read each field

If a scan is too large, use Adobe Acrobat's File → Save as Other → Reduce Size PDF, or lower your phone camera's resolution and retake the photo. Skipping a required upload field or uploading the wrong file type will block submission.

After you submit

You will get an acknowledgement email containing a link to the Garda e-vetting system, which must be completed through the portal. This is how good character is now assessed.

Good character takes account of criminal convictions here and abroad, driving offences, civil and criminal court proceedings, Garda cautions, open investigations and adverse immigration history. You are asked to declare these on the form and to explain the circumstances — declaring an old offence is far safer than omitting it.

Requests for more documents

You have 28 days to supply anything further, uploaded through the same Online Form Portal. A reminder issues at day 18 with ten days remaining. Missing the deadline means refusal, loss of the €175, and starting a fresh application.

Tracking your application

You cannot track progress in the Online Form Portal. Use the separate Customer Service Portal and click “Status”. Most applications are decided within about twelve months, though complex cases take longer.

If you are approved

• You are notified of the Minister's intention to grant and invited to a citizenship ceremony.
• You pay the certification fee: €950 for a standard adult application, €200 for a minor, €200 for a widow, widower or surviving civil partner of an Irish citizen, and nothing for refugees and stateless applicants.
• Bring an in-date IRP card and your identity documents to the ceremony.
• Your certificate arrives by registered post.
• Your name, address, application type and certificate date are published in Iris Oifigiúil, the official State gazette. This is required by law and there are no exceptions.

If you are refused

You receive a refusal letter, with reasons where possible. There is no appeal process. You may apply again once you are eligible.

What changed from the old Form 8

Citizenship applications moved online on 16 October 2023, and the process has been tightened since. If you are working from older advice or an out-of-date checklist, these are the differences that matter.

What has not changed: certification. The paper form and the online form both stand or fall on properly certified copies witnessed by an authorised person.

Why applications get returned

ISD lists these as the most frequent causes. Every one is avoidable before you press submit.

• Documents missing, or present but not certified
• Not enough residency evidence for one or more years, or no strong document in a year
• Identity documents that do not reach 150 points
• Gaps in immigration permission
• Declarations missing, unsigned, or witnessed by someone not authorised
• Files uploaded to the wrong section, or in an unaccepted format
• The certification form left out even though the certified copy was included

Official links

• How to Become an Irish Citizen Guide — the full official guidance, and the source for this page
• ISD Online Forms Portal — where you complete and submit the application
• ISD Customer Service Portal — queries, status checks and paper form requests
• Naturalisation Residency Calculator — for non-EEA applicants
• Citizens Information — free independent guidance
• Foreign Births Register — if you qualify by descent instead

Postal address for paper applications:
Citizenship Division, Department of Justice, Rosanna Road, Tipperary Town, Co. Tipperary, E34 N566, Ireland