Starting a company in Ireland is one of the most attractive routes into the European market, thanks to a 12.5% corporation tax rate, an English-speaking business environment and access to the EU. But between the CRO, Revenue, VAT thresholds and director obligations, many founders are unsure where to begin — or make avoidable mistakes that cause delays and penalties.
Why incorporate a company in Ireland?
Ireland is home to the European headquarters of many of the world's largest technology and pharmaceutical companies, and the same infrastructure that attracts multinationals also benefits small businesses and international founders. A private company limited by shares (LTD) is the most common structure because it gives you limited liability, a professional profile and a tax-efficient base for trading in Ireland and across the EU.
- 12.5% corporation tax on trading income — one of the lowest headline rates in the EU.
- Limited liability protects your personal assets from business debts.
- Access to the EU single market and a large network of double-taxation treaties.
- A credible, English-speaking jurisdiction that customers and investors recognise.
- Grants and supports through Local Enterprise Offices and Enterprise Ireland.
Before you register: what you need to decide
1. Choose your company type
Most trading businesses register as a private company limited by shares (LTD). Other structures include the Designated Activity Company (DAC), company limited by guarantee (CLG, common for charities and non-profits), and the sole trader route, which is simpler but offers no limited liability.
| Structure | Best for | Limited liability | Corporation tax |
|---|---|---|---|
| Sole Trader | Testing an idea, low-risk freelancing | No | Taxed as personal income |
| Private Limited Company (LTD) | Most SMEs and startups | Yes | 12.5% on trading income |
| DAC | Regulated activities, specific objects | Yes | 12.5% on trading income |
| CLG | Charities and non-profits | Yes | Usually exempt if charity status granted |
2. Appoint directors and a company secretary
An Irish LTD needs at least one director, and if it has only one director it must appoint a separate company secretary. At least one director must be resident in the European Economic Area (EEA). If none of your directors are EEA-resident, you can put a Section 137 non-resident directors' bond in place instead.
3. Provide a registered office and business address
You need a physical registered office address in Ireland where official documents can be served. This must be a real address, not a PO box. Many founders use a professional registered office service, particularly international founders without an Irish premises.
4. Decide share capital and ownership
Share capital can be modest — many companies are formed with issued share capital of just a few hundred euro. What matters is recording who owns the shares (the shareholders) and how ownership is split, as this drives control and dividend entitlements.
The step-by-step registration process
- Choose and check a company name — it must be distinct from existing CRO-registered names and not misleading.
- Prepare your constitution and the incorporation form (Form A1), which captures directors, secretary, shareholders and registered office.
- Submit the application to the Companies Registration Office (CRO), usually online via CORE.
- Receive your Certificate of Incorporation and Company Number once approved (typically within a few working days).
- Register for tax with Revenue through ROS — Corporation Tax, and where relevant VAT and Employer PAYE.
- Open a business bank account using your Certificate of Incorporation and company details.
- Register beneficial owners with the Central Register of Beneficial Ownership (RBO) within five months of incorporation.
After incorporation: registering for tax
Incorporation and tax registration are two separate steps. Once your company exists, you register it with Revenue through the Revenue Online Service (ROS). The core registrations to consider are:
- Corporation Tax — required for all trading companies.
- Value Added Tax (VAT) — required once you exceed (or expect to exceed) the registration thresholds.
- Employer PAYE/PRSI — required before you pay your first employee or director salary.
- Relevant Contracts Tax (RCT) — only if you operate in construction, forestry or meat processing.
Your ongoing compliance calendar
Once trading, an Irish company has recurring obligations to both the CRO and Revenue. Missing these is the most common cause of penalties for new businesses.
- File your first Annual Return (Form B1) six months after incorporation — no financial statements required for the first one.
- File subsequent Annual Returns each year with financial statements attached.
- File your annual Corporation Tax return (CT1) and pay any tax due.
- File VAT returns (usually bi-monthly) if VAT-registered.
- Run payroll and file PAYE in real time each pay period if you have employees.
- Keep the RBO up to date whenever beneficial ownership changes.
- Maintain proper books and records for at least six years.
Common mistakes to avoid
The pitfalls we see businesses run into most often on this topic.
- Missing the first Annual Return deadline — it falls six months after incorporation and is easy to overlook because no accounts are required yet.
- Assuming incorporation automatically registers you for tax. CRO and Revenue are separate; you must register with Revenue through ROS.
- Registering for VAT too early or too late — both create problems, so the decision should be based on your turnover and customer base.
- Not having an EEA-resident director or the Section 137 bond in place, which stalls the whole application.
- Forgetting the RBO filing, which must be completed within five months of incorporation.
- Mixing personal and business finances because a dedicated business bank account was not opened promptly.
Frequently asked questions
How Stratancy can help
Stratancy handles the entire company formation process for Irish and international founders — name checks, constitution, CRO submission, Revenue tax registration, RBO filing and your registered office. Because our team is made up of ACCA-qualified professionals, we don't just incorporate the company and disappear: we set up cloud accounting, register you for the right taxes at the right time, and keep you compliant with the CRO and Revenue on fixed monthly pricing. Whether you are a first-time founder or expanding into Ireland from abroad, we make the process simple and predictable.