This article is for Irish company directors, founders, and business owners who've discovered errors in their company's incorporation documents or setup.
If you're worried about missing appointments, wrong share structures, constitutional errors, or other defects in your company formation, this guide covers how to assess the severity of the problem, what can be fixed through simple CRO filings, and when you might need court rectification or professional legal help.
Key Takeaways
• Minor errors like misspelled director names can be fixed by filing corrected forms with the CRO and a covering letter.
• Section 173 allows court-ordered rectification of the register of members when share allocations were recorded incorrectly at incorporation.
• Acts by directors or secretaries remain valid despite defective appointments, protecting third parties who dealt with the company in good faith.
• Constitutional errors require a special resolution passed by 75% of voting members and filed with Form B5.
• Reincorporation becomes necessary when defects are too fundamental to cure, requiring a new company and transferring all assets and contracts.

What are common incorporation defects?
Incorporation errors range from minor administrative mistakes to fundamental problems that affect the company's legal validity.
Common defects include:
- Incorrect director details such as wrong addresses, misspelled names, or missing directors
- Invalid share capital structure where shares were issued incorrectly or nominal values don't match filed documents
- Missing required appointments like failing to appoint a company secretary when required
- Constitutional errors including contradictory provisions or missing mandatory clauses
- Wrong company type such as incorporating as LTD when DAC was required for your activities
The severity of the defect determines what remedies are available and how urgent rectification becomes.
What happens if incorporation was defective?
A company comes into existence on the date shown on the certificate of incorporation, but serious defects may affect the validity of that existence.
The legal consequences depend on whether the defect is procedural or goes to the fundamental validity of incorporation.
Minor procedural errors don't usually invalidate the company's existence or previous actions.
Fundamental defects might theoretically void the incorporation, though courts are reluctant to reach this conclusion if it would harm innocent third parties.
Can you rectify minor errors?
Yes, minor errors can usually be corrected by filing amended forms with the CRO and providing explanations for the corrections.
Administrative mistakes like spelling errors in director names or wrong addresses can be fixed by filing corrected forms.
You should include a covering letter explaining the error and why correction is needed.
The CRO will update the public register to reflect the correct information. These corrections don't affect the company's legal validity or existing contracts.
What about missing required appointments?
Discovering that your company never properly appointed required officers creates more serious issues that need immediate attention.
If you discovered the company secretary was never properly appointed, hold a board meeting to formally appoint one now.
File Form B10 with the CRO showing the appointment effective from the current date. However, appointments generally cannot be backdated for CRO filing purposes.
The Companies Act 2014 protects acts done by directors or secretaries whose appointments were defective, preventing invalidity of previous decisions.
Companies operating without required appointments may face penalties but past actions usually remain valid.
How do you fix constitutional errors?
Constitutional problems require special resolutions to amend the constitution and file the amendments with the Registrar.
Companies can amend their constitutions by special resolution passed by 75% of members voting.
You need to pass a special resolution correcting the constitutional error and file it with Form B5.
The amendment takes effect when the special resolution is passed, not when filed with CRO.
Some constitutional defects may require professional legal advice to determine the best rectification approach.
What is Section 173 rectification?
Section 173 allows the court to order rectification of the register of members when names are wrongly entered or omitted.
The provision applies when the register doesn't reflect the true position due to errors at incorporation or subsequently.
Any member or person claiming to be a member can apply to court for rectification. The court can order rectification and payment of damages where appropriate.
In our experience, this remedy is particularly useful when share allocations at incorporation were recorded incorrectly.
Do existing contracts remain valid?
Yes, the legislation protects the validity of acts done by directors or secretaries even if their appointments were technically defective.
The section states that acts of a person as director or secretary are valid notwithstanding any defect in their appointment.
This protection extends to third parties who dealt with the company in good faith.
Contracts entered into by the company remain enforceable despite appointment defects.
The protection doesn't extend to situations where parties knew about the defect when contracting.
When is reincorporation necessary?
Reincorporation becomes necessary when defects are so fundamental that they cannot be cured retrospectively and continuing with the current entity creates unacceptable risks.
Situations requiring reincorporation include:
- Constitutional provisions are fundamentally incompatible with your business needs and cannot be amended
- Multiple compounding errors make rectification more expensive than starting fresh
- Regulatory approvals require a properly structured entity from inception
Reincorporation means forming a new company and transferring assets, contracts, and operations from the defective entity.
How does reincorporation work?
Reincorporation involves incorporating a new company correctly and then transferring everything from the old company to the new one. The process is set out as follows:
- Incorporate a new company with the correct structure and proper documentation
- Transfer assets from the old company to the new company through sale or transfer agreements
- Novate contracts so they're with the new company rather than the old company
- Inform customers, suppliers, and stakeholders about the change of entity
- Consider whether to formally dissolve the old company or leave it dormant
What are de facto directors?
People who acted as directors are treated as directors for legal purposes even if appointments were defective.
A de facto director is someone who acts in the role of director without having been validly appointed.
They owe the same fiduciary duties and have the same liabilities as properly appointed directors.
This prevents people avoiding director responsibilities by claiming their appointment was invalid.
What should you do immediately?
The following steps should be taken if you discover incorporation defects with your company:
- Take prompt action to assess the defect's severity and begin rectification before the problem compounds or is discovered by regulators
- Get professional advice from solicitors experienced in company law to understand your options
- Document what defect exists, when it occurred, and what impact it has had on company operations
- Stop any activities that might be affected by the defect until rectification is complete
- Notify relevant stakeholders if the defect affects their rights or relationships with the company
- File corrected forms with the CRO as soon as possible to update the public register

Laura Ryan is a practising Barrister at the Bar of Ireland. She graduated from the Honourable Society of King’s Inns in 2024, having previously qualified and practised as a Chartered Accountant in a big four accounting firm.












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