Codicil vs New Will in Ireland: How to Amend Your Will Properly

Life changes. Your will should too.

Whether you've had a new child, gotten married, divorced, acquired property, or simply changed your mind about beneficiaries, your will needs to reflect your current wishes. But when it comes to updating your will in Ireland, you have two main options: drafting a codicil or creating an entirely new will.

Choosing the wrong method can lead to confusion, legal disputes, or even invalidate your wishes entirely. In this guide, we'll explain exactly what each option involves, when to use them, and how to amend a will in Ireland properly.

What Is a Codicil?

A codicil is a legal document that makes specific amendments to an existing will without replacing it entirely. Think of it as an official "patch" to your original will—it adds, removes, or modifies certain provisions while leaving the rest of the document intact.

Legal Status of a Codicil in Ireland

Under Irish law, a codicil is treated with the same legal weight as the original will itself. It must meet the exact same formal requirements as a will to be valid:

• Written document: It must be in writing (typed or handwritten)
• Signature: You (the testator) must sign it
• Witnesses: Two independent witnesses must be present simultaneously when you sign, and they must also sign in your presence
• Mental capacity: You must have testamentary capacity (sound mind, understand what you're doing)
• No undue influence: The codicil must be made freely, without coercion

The codicil is read alongside your original will, and together they form your complete testamentary wishes. If there's any conflict between the codicil and the original will, the codicil (being more recent) takes precedence.

Common Uses for a Codicil in Ireland

Historically, codicils were popular because wills had to be professionally typed or handwritten, making changes expensive and time-consuming. Common scenarios included:

• Changing an executor or trustee
• Adding or removing a small bequest
• Updating an address or name
• Making a minor adjustment to asset distribution
• Adding a new beneficiary for a specific item

However, with modern word processing and will-making services, the practical advantages of a codicil have diminished significantly.

What Is a New Will?

A new will is a completely fresh testamentary document that replaces your previous will entirely. When you execute a new will in Ireland, it automatically revokes (cancels) all previous wills and codicils, unless you specifically state otherwise.

How a New Will Revokes the Old

Most new wills begin with a revocation clause such as:

"I hereby revoke all former wills and testamentary dispositions made by me and declare this to be my last will."

This single sentence wipes the slate clean. Even if you don't include this clause, the act of making a new will that disposes of your entire estate generally revokes earlier wills by implication under the Succession Act 1965.

Benefits of Starting Fresh

Creating a new will offers several advantages:

• Clarity: One single document contains all your wishes—no cross-referencing required
• Reduced confusion: Executors and beneficiaries don't need to interpret multiple documents
• Lower risk of conflict: No chance of contradictions between old and new provisions
• Easier to update: You can reorganize the entire structure as your circumstances change
• Professional review: Opportunity to review your entire estate plan, not just one provision

Codicil vs New Will: Side-by-Side Comparison

When to Use a Codicil

In modern practice, codicils are rarely the best choice—but there are still scenarios where they make sense.

Ideal Scenarios for a Codicil in Ireland

1. Tiny administrative changes
You've moved house and need to update your address, or an executor's name has changed due to marriage.

2. Adding one small bequest
You want to leave your vintage watch collection to a specific grandchild, and everything else remains the same.

3. Time-sensitive situations
You need to make one urgent change but don't have time to redraft the entire will (though this is rare with modern templates).

4. Historical wills with sentimental value
Your original will was drafted decades ago by a beloved family solicitor, and you want to preserve the original document while making a minor update.

Why Codicils Are Falling Out of Favor

Most solicitors and will-writing services in Ireland now recommend creating a new will instead of a codicil, even for minor changes. Here's why:

• No cost advantage: With digital templates, creating a new will takes the same time as drafting a codicil
• Confusion risk: Multiple codicils can create interpretation problems for executors
• Lost documents: If the codicil is separated from the original will, chaos can ensue
• Compounding complexity: Each additional codicil makes the estate harder to administer

When to Use a New Will

In most cases, creating a new will is the smarter choice when you need to change a will in Ireland.

Situations That Call for a New Will

1. Major life events - Marriage (in Ireland, marriage automatically revokes a previous will unless made "in contemplation of marriage") - Divorce or separation - Birth or adoption of a child - Death of a beneficiary or executor

2. Significant asset changes - Purchasing or selling property - Acquiring a business - Receiving an inheritance - Major changes in asset values

3. Multiple amendments needed If you want to change more than one or two provisions, a fresh will is clearer and safer.

4. Complex changes - Restructuring trusts - Changing guardianship arrangements for children - Altering the residuary estate distribution

5. Clarity and peace of mind Even for small changes, many people prefer the certainty of one comprehensive document over managing multiple pieces of paper.

The "Clean Slate" Advantage

When you create a new will, you have the opportunity to:

• Review your entire estate plan with fresh eyes
• Ensure all provisions still reflect your current wishes
• Update language to be clearer and more precise
• Remove outdated clauses or beneficiaries
• Incorporate new legal protections or tax strategies

How to Properly Execute a Codicil in Ireland

If you've determined a codicil is the right choice, it must be executed with the exact same formalities as your original will.

Step-by-Step Execution Requirements

Step 1: Draft the codicil clearly
State your name, reference the original will by date, and specify exactly what you're changing. Be precise:

"I, [Your Name], of [Your Address], hereby make this Codicil to my Will dated [Date of Original Will]. I revoke the bequest of €5,000 to my cousin John Smith, and in its place, I give €5,000 to my niece Sarah O'Brien."

Step 2: Date the document
Include the exact date you're signing.

Step 3: Sign in the presence of two witnesses
You and your two witnesses must all be in the same room at the same time. You sign first.

Step 4: Witnesses sign and add their details
Witnesses must sign immediately after watching you sign. They should include their full names, addresses, and occupations.

Step 5: Store with the original will
Keep the codicil attached to or filed with your original will. Tell your executor where both documents are stored.

Critical Requirements

• Witnesses cannot be beneficiaries: Anyone who benefits from the will or codicil (or their spouse) cannot act as a witness, or they'll lose their inheritance
• Witnesses must see you sign: They don't need to read the codicil, but they must watch you sign it
• No alterations after signing: Any changes made after execution can invalidate the codicil
• Testamentary capacity required: You must be of sound mind and over 18 (or married)

Common Mistakes When Amending Wills in Ireland

These errors can lead to your amendments being invalid, contested, or misinterpreted:

1. Pencil edits or crossing out text

Handwritten notes or strikethroughs on your original will have no legal effect in Ireland. They may even raise questions about tampering or mental capacity.

2. Unsigned codicils

A codicil without proper signature and witnesses is worthless. It's not enough to type it up and attach it—it must be formally executed.

3. Using a beneficiary as a witness

If someone named in your will or codicil witnesses the document, they automatically lose their entitlement under Irish law. Choose neutral witnesses.

4. Multiple conflicting codicils

Creating several codicils over time can lead to contradictions. If Codicil 1 gives your car to your son, and Codicil 2 gives it to your daughter, which one prevails? (Answer: the most recent—but this creates legal risk and family disputes.)

5. Storing documents separately

If your executor finds your will but not the codicil (or vice versa), your wishes won't be properly carried out. Keep them together in a safe, accessible place.

6. Not reviewing the combined effect

After making a codicil, read the original will and codicil together to ensure they make sense as a whole. Sometimes a small change has unintended knock-on effects.

7. Assuming marriage doesn't affect your will

In Ireland, getting married automatically revokes your existing will unless it was made "in contemplation of" that specific marriage. If you marry, you need a new will—a codicil won't fix this.

8. DIY codicils for complex changes

If you're altering trusts, tax arrangements, or guardianship provisions, get professional legal advice. These areas are too important for guesswork.

Cost Comparison: DIY vs Solicitor

Whether you choose a codicil or a new will, you'll face a choice between doing it yourself or hiring a solicitor.

DIY Codicil or Will

Cost: €0–€50
Time: 30 minutes to a few hours
Pros: - Inexpensive - Quick - Full control over the process

Cons: - Risk of errors - No legal review - May miss important legal or tax implications - No advice on whether a codicil or new will is better

Best for: Simple estates, straightforward changes, legally confident individuals

Solicitor-Drafted Codicil

Cost: €150–€300 (approximately)
Time: One or two appointments
Pros: - Professional drafting - Legal compliance guaranteed - Advice on whether a codicil is appropriate - Storage services often available

Cons: - More expensive - Requires appointments - May take longer

Best for: Anyone uncertain about legal requirements, complex amendments, or with significant assets

Solicitor-Drafted New Will

Cost: €200–€500 (approximately)
Time: One or two appointments
Pros: - Comprehensive estate plan review - Expert tax and legal advice - Clean, professional document - Reduced risk of future disputes - Often includes secure storage

Cons: - Higher upfront cost - Requires scheduling and travel

Best for: Complex estates, major life changes, significant assets, or peace of mind

The Real Cost Calculation

The cheapest option isn't always the best value. An improperly executed codicil or DIY will can lead to:

• Probate disputes (legal costs of €5,000–€20,000+)
• Invalid provisions (your wishes ignored)
• Family conflict and stress
• Delayed estate distribution
• Unintended tax consequences

Spending a few hundred euros on professional drafting can save your family tens of thousands in legal fees and heartache.

Ready to Update Your Will?

Whether you choose a codicil or a new will, the most important thing is to act now. An outdated will is a ticking time bomb for your loved ones.

Your Next Steps

For simple changes:
Use our professionally drafted templates to create a clear, legally sound codicil or new will in minutes.

👉 Browse our Irish will templates →

For complex estates:
Our templates include guidance notes to help you navigate trust provisions, tax planning, and guardianship arrangements—or use them as a starting point before consulting a solicitor.

Not sure which option is right for you?
Our template packages include both codicil and full will options, with plain-English instructions on when to use each.

What You'll Get

✅ Legally compliant Irish templates
✅ Clear instructions for execution
✅ Guidance on witnesses and formalities
✅ Digital download—start today
✅ One-time payment, lifetime access

Don't leave your family guessing about your wishes. Update your will properly, today.

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Disclaimer: This article provides general information about wills and codicils in Ireland and should not be considered legal advice. For specific guidance on your individual circumstances, consult a qualified solicitor. MakeAWill.ie provides template documents only and does not provide legal services.