Registering a company in Ireland is one of the most rewarding steps you can take as an entrepreneur. Ireland offers a 12.5% corporation tax rate, full EU single market access, and a business-friendly regulatory environment that attracts thousands of new incorporations every year. Whether you're a first-time founder, an IT contractor, or a non-resident looking to set up in Ireland, this guide walks you through every step of online company registration Ireland in 2026.
Not sure if a limited company is right for you? Read our limited company vs sole trader comparison first.
Step 1: Choose Your Company Structure
The first decision is choosing the right legal structure. The overwhelming majority of Irish businesses choose a Private Company Limited by Shares (LTD). This is the standard structure for small businesses, startups, contractors, and e-commerce companies. It offers limited liability protection, meaning your personal assets are separate from company debts.
Other structures available include:
- DAC (Designated Activity Company) — for companies with a defined purpose in their constitution
- CLG (Company Limited by Guarantee) — typically used for charities and non-profit organisations
- PLC (Public Limited Company) — for companies that wish to offer shares on a stock exchange
- Sole Trader — simpler but offers no liability protection
See our complete guide to types of companies in Ireland for detailed comparisons.
Step 2: Choose and Check Your Company Name
Your company name must be unique and not too similar to any existing company on the CRO register. A good company name is memorable, relevant to your business, and easy to spell. We offer a free company name check to verify availability before you proceed.
Key naming rules:
- Cannot be identical or deceptively similar to an existing registered company
- Cannot be offensive, misleading, or suggest government connection
- Certain restricted words (Bank, Insurance, University, Ireland, Irish, National) require ministerial approval
- Must end with "Limited" or "Ltd" (or Irish equivalents "Teoranta" / "Teo")
- We recommend submitting three name choices in order of preference in case your first choice is rejected
Step 3: Gather Your Required Documents
To incorporate a company in Ireland, the CRO requires specific information and documentation. Having everything prepared in advance significantly speeds up the process. Here's your complete checklist:
- Company Constitution (Memorandum and Articles of Association) — the governing document that sets out the company's rules and powers
- Form A1 — the official CRO incorporation form
- Director details — full name, date of birth, address, nationality, occupation, and PPSN or IPN number for each director
- Company Secretary details — name and address (cannot be the sole director)
- Shareholder details — names and number of shares allocated to each
- Registered office address — must be a physical address in Ireland (PO boxes not accepted)
- Description of company activities — a brief statement of what the company will do
Don't have a PPSN? Non-residents need an IPN (Individual Person Number) instead — included free in our Standard and Premium packages.
Step 4: Appoint Directors and a Company Secretary
Every Irish LTD company requires at least one director and a company secretary. The same person cannot serve as both sole director and company secretary — you need at least two people in these roles.
Director requirements:
- Must be at least 18 years old
- Cannot be an undischarged bankrupt
- Cannot be disqualified or restricted from acting as a director
- At least one director must be resident in the EEA, or the company must hold a Non-Resident Director Bond (Section 137 bond)
Need a company secretary? Our Nominee Company Secretary service provides a qualified secretary for your company at €438/year.
Step 5: Provide a Registered Office Address
Every company registered in Ireland must have a registered office address — a physical location in Ireland where official correspondence from the CRO, Revenue, and other bodies is received. This address appears on the public register and on all official company documents.
If you don't have a suitable Irish address, our Registered Office Address service provides one for €300/year — or it's included free in the Premium package for the first year.
Step 6: File with the Companies Registration Office (CRO)
The Companies Registration Office (CRO) is the statutory authority responsible for the incorporation of companies in Ireland and the registration of business names. Filing involves submitting:
- Completed Form A1 (incorporation form)
- Company Constitution
- The CRO filing fee
- Consent forms from directors and secretary
The CRO reviews the application, checks the proposed company name, and, if everything is in order, issues a Certificate of Incorporation. Standard CRO processing takes approximately 5–10 business days. An express service is available from the CRO for faster processing.
Step 7: Receive Your Certificate of Incorporation
Once approved, you receive your Certificate of Incorporation along with your unique CRO number. This is your company's "birth certificate" — proof that it legally exists. From this point, your company can:
- Open a business bank account
- Enter into contracts
- Register for tax with Revenue
- Begin trading
Learn how to open a business bank account in Ireland after incorporation.
Step 8: Register for Tax with Revenue
After incorporation, you must register your company for tax with the Revenue Commissioners. Key registrations include:
- Corporation Tax (CT) — mandatory for all companies
- PAYE/PRSI — required if you'll be paying salaries (including director salaries)
- VAT — required if turnover exceeds or will exceed €37,500 (services) or €75,000 (goods). See our guide to VAT registration in Ireland.
- RCT — required for construction industry participants
Our Tax Registration service handles all Revenue registrations for you, ensuring everything is set up correctly from day one.
How StartCompany.ie Makes It Faster
While you can handle the entire CRO registration process yourself, using a professional formation agent like StartCompany.ie saves significant time and eliminates the risk of errors or rejections. Here's how we streamline the process:
- Step 1: Choose your package — select from our Basic (€240), Standard (€490), or Premium (€798) packages
- Step 2: Submit your details — fill in our simple online form with your company name choices, director/shareholder details, and business description
- Step 3: We handle everything — we prepare your constitution, complete Form A1, file with the CRO, and handle any queries from the office
- Step 4: Receive your company — you get your Certificate of Incorporation, company constitution, share certificates, and all statutory documents within 3–5 business days
How Much Does Company Formation Cost?
Our packages start from just €240, which includes all CRO fees, your company constitution, Certificate of Incorporation, share certificates, and a free consultation. For a detailed breakdown of all costs involved, including ongoing annual costs, read our guide on how much it costs to register a company in Ireland.
How Long Does Company Formation Take?
With StartCompany.ie, the typical timeline is:
- Same day — we prepare and submit your documents to the CRO
- 3–5 business days — CRO processes the application (standard processing)
- 1–2 business days — express processing available through the CRO for urgent incorporations
Once incorporated, tax registration typically takes an additional 5–10 business days with Revenue.
Common Mistakes to Avoid
- Not checking the company name first — submit multiple name choices to avoid delays
- Incorrect PPSN/IPN details — ensure all director details exactly match Revenue records
- Forgetting the EEA director requirement — at least one director must be EEA-resident, or you need a Section 137 bond
- Using a PO Box as registered address — the CRO requires a physical address
- Not registering for tax promptly — delays in tax registration can cause issues with invoicing and VAT recovery
What Happens After Formation?
Once your company is incorporated, your ongoing obligations include:
- Filing an Annual Return (B1) with the CRO — first one due 6 months after incorporation
- Filing Corporation Tax returns with Revenue annually
- Maintaining statutory registers (directors, members, etc.)
- Holding an AGM within 18 months of incorporation
- Keeping proper books of accounts
Start Your Company Today
Ready to register a company in Ireland? StartCompany.ie handles the entire process from start to finish — from just €240. We've helped thousands of entrepreneurs incorporate successfully. View our packages or start your company formation now.