Registering a business name and forming a limited company are two different legal steps in Ireland. A business name tells the public who is trading under a particular name. It does not create a new legal person. A private company limited by shares, usually called an LTD, is a separate legal entity with directors, shareholders, a registered office and ongoing filing duties.
The right choice depends on much more than the registration fee. Personal liability, tax, contracts, customers, co-founders, investment plans and annual administration all matter. This guide compares the two routes so you can identify the questions to discuss with your accountant or solicitor.
Quick answer
A sole trader using a brand that is not their true surname generally registers a business name. The person remains responsible for the business. An LTD is normally the stronger fit when legal separation, limited liability, shared ownership, investment or a more formal company structure is important.
Business Name vs Limited Company at a Glance
| Question | Business name used by a sole trader | Irish LTD company |
|---|---|---|
| Separate legal entity | No | Yes |
| Owner's liability | Generally personal and unlimited | Generally limited to the shareholder's investment |
| Ownership | The individual owns the business | Shares define ownership |
| CRO registration | Business-name filing | Company incorporation filing |
| Annual CRO return | Not for the business name itself | Required, including the first annual return |
| Public filing | Business-name particulars | Company, officer and filing information |
| Tax starting point | Individual is taxed on business profit | Company is taxed; payments to owners have separate rules |
| Best suited to | Simple, lower-risk individual trading | Growth, contracts, co-ownership, staff or investment |
What Is a Business Name in Ireland?
A business name is the name under which an individual, partnership or company carries on business when that name differs from the true legal name. For example, an individual called Aoife Murphy who trades as "Harbour Bookkeeping" would normally register Harbour Bookkeeping as a business name.
The registration identifies the person or entity behind the trading name. It does not incorporate the business, create shareholders or separate business debts from the individual sole trader. Invoices, contracts and liabilities still belong to the underlying person or entity.
When is business-name registration required?
CRO guidance states that an individual must register when using a business name that is not their true surname, a partnership must register when the name is not the true surnames of all partners, and a company must register when trading under a name other than its full corporate name. The filing should generally be made within one month of adopting the name.
Forms and official CRO fees
Individuals use Form RBN1, partnerships use RBN1A and companies use RBN1B. At the time this guide was reviewed, the CRO listed an electronic filing fee of EUR20 and a paper filing fee of EUR40. Those are official filing fees; a formation agent's preparation and submission service is a separate cost.
What Is an Irish Limited Company?
An LTD is incorporated under the Companies Act 2014 and has a legal identity separate from its members. It can enter contracts, employ people, own property, borrow money and bring or defend legal proceedings in its own name. Ownership is represented by shares.
Shareholder liability is generally limited to the amount unpaid on their shares. This protection is important, but it is not absolute: personal guarantees, wrongful conduct, tax failures and breaches of directors' duties can still create personal exposure. Limited liability should never be treated as a substitute for proper insurance, contracts and compliance.
Core LTD requirements
- At least one director who is 18 or older.
- A company secretary; a sole director cannot also act as secretary.
- At least one shareholder, who may also be a director.
- A physical registered office address in Ireland.
- A constitution and stated principal activity.
- An EEA-resident director or an appropriate alternative such as a Section 137 bond.
- Ongoing CRO, RBO, accounting and tax compliance.
See the full Irish LTD requirements guide and our Irish company name-check guide before filing.
Liability: The Most Important Structural Difference
A sole trader and the business are legally the same person. If the business cannot pay a supplier, loses a claim or owes tax, the individual may be personally responsible. Trading through a registered business name does not change that position.
An LTD normally places contracts, assets and debts in the company's name. Shareholders receive limited liability, subject to the exceptions described above. Businesses with employees, leases, significant contracts, customer deposits, borrowing or operational risk often give this distinction greater weight.
Tax and Accounting Differences
A sole trader reports business profits as personal income and may pay Income Tax, PRSI and USC. The individual generally draws money from the business without running a separate salary, because the profit already belongs to the individual for tax purposes.
A company files its own Corporation Tax return and pays tax on company profits. Salary, benefits, dividends, pension contributions and money taken from the company each have their own rules. Ireland's 12.5% corporation-tax rate may apply to qualifying trading income, but that does not mean the owner pays only 12.5% on money extracted personally.
Incorporation is not automatically the lowest-tax choice. Expected profit, how much cash must be drawn, pension plans, losses and the cost of annual accounts all affect the result. Obtain tailored advice before choosing a structure mainly for tax reasons.
Administration and Annual Compliance
A business name has relatively light CRO administration, although the sole trader still has Revenue, bookkeeping, VAT, payroll, licensing and sector-specific obligations where relevant. Changes or cessation of the registered business name must also be notified.
An LTD must maintain accounting and statutory records, file an annual return with the CRO, prepare financial statements subject to applicable exemptions, keep beneficial ownership information current and meet Revenue deadlines. The first annual return is generally due six months after incorporation and normally has no financial statements attached. Read our first annual return guide.
Name and Brand Protection
Neither a business-name certificate nor a CRO company registration is a complete brand clearance. The CRO expressly states that business-name registration does not protect against duplication. A company name can also face an objection if it is too similar to an existing company.
Search company names, business names and trade marks before investing in a brand. A registered trade mark can provide stronger rights for specified goods or services. Domain names and social usernames should be checked too, but owning a domain does not itself create trade mark rights.
Contracts, Banking, Investment and Credibility
Some clients, landlords, grant providers and suppliers prefer to contract with a company, but an LTD is not automatically more trustworthy. Clear terms, insurance, financial controls and a good trading record matter more than the letters after a name.
A company can make shared ownership and outside investment easier because shares record each owner's interest. It also separates company banking and accounting from the founder. A sole trader can still open a business bank account and build a strong operation, but cannot issue shares in the business.
Can You Register Both?
Yes. An incorporated company may trade under a different registered business name. For example, West Quay Services Limited could register "Harbour Bookkeeping" as its business name. The LTD remains the legal entity behind contracts and debts, while the business name is the public-facing trading name.
The company's legal name, number, registered office and other prescribed details must still be disclosed on business letters, order forms and websites. Registering the trading name does not hide the company behind it.
Which Route Fits Common Situations?
A small side business testing demand
A sole trader structure may be proportionate when activity is simple, risk is low and there are no co-owners. Register a business name if the trading name requires it, keep proper records and review the structure as sales grow.
A consultancy signing larger client contracts
An LTD may provide useful legal separation and a clearer contracting entity. Professional indemnity insurance, data-protection duties and carefully reviewed contract terms remain important.
Two founders building one business
A company can record ownership through shares and establish governance through its constitution and a shareholders' agreement. A partnership is another possible structure, but the founders should obtain advice on liability and tax.
A business seeking investors
Investors commonly expect an incorporated company that can issue or transfer shares, document intellectual-property ownership and complete due diligence. Incorporating early can avoid a more complicated transfer later.
Can You Change From Sole Trader to LTD Later?
Yes, but an LTD is a new legal person. Contracts, assets, intellectual property, employees, tax registrations, banking, insurance and customer relationships may need to be transferred or replaced. Existing liabilities do not disappear merely because a company is formed.
Choose a practical transition date and coordinate CRO incorporation with Revenue registration, banking and invoices. An accountant can advise on asset transfers, VAT, capital allowances and closing or updating the sole-trader records. Read our complete sole trader to LTD transition guide before moving assets or contracts.
Decision Checklist
- What level of financial, contractual or operational risk will the business carry?
- Will there be co-founders, employees, borrowing or outside investment?
- How much profit is expected and how much will the owner need to withdraw?
- Do key customers or tenders require an incorporated supplier?
- Can the business maintain annual accounts, CRO returns and company records?
- Is the proposed name clear on the CRO and trade mark registers?
- Would changing structure later disrupt important contracts or assets?
Registration Support and Costs
StartCompany.ie offers a business-name registration service for EUR200. Irish LTD formation starts at EUR240, including the CRO incorporation fee, company name check, Certificate of Incorporation, constitution and share certificates. The two prices cover different registrations and should not be compared as if they create the same result.
Review business-name registration or compare Irish company formation packages. We can help with the CRO process, while your accountant or solicitor should advise on the legal and tax structure for your circumstances.
Frequently Asked Questions
Is a business name the same as a limited company in Ireland?
No. A business name is a trading name used by a person, partnership or company. Registering it does not create a separate legal entity. An Irish limited company is incorporated with the CRO and has its own legal identity.
Does registering a business name give me limited liability?
No. A sole trader remains personally responsible for the business when trading under a registered business name. Limited liability is associated with an incorporated company, although directors can still have personal responsibility in certain circumstances.
When must I register a business name in Ireland?
CRO guidance says registration is required when an individual, partnership or company trades under a name that is not the true name of the person or entity. The application should generally be filed within one month of adopting the business name.
How much is the CRO fee to register a business name?
The CRO currently lists a filing fee of EUR20 for an electronic business-name application and EUR40 for a paper application. Professional preparation or filing services are separate from the CRO fee.
Can an Irish limited company use a different trading name?
Yes. A limited company can register a business name when it trades under a name other than its full legal company name. The legal company details must still appear on business letters, order forms and websites as required by law.
Does a registered business name protect the brand?
No. The CRO states that business-name registration does not protect the name from duplication. Trade mark protection is separate and should be considered with the Intellectual Property Office of Ireland.
Which is better for a one-person business in Ireland?
It depends on risk, expected profit, customers, funding plans and tolerance for administration. A low-risk side business may begin as a sole trader, while a founder seeking legal separation, co-ownership or investment may prefer an LTD. Individual tax and legal advice is important.
Can I change from a sole trader to a limited company later?
Yes, but the change is not automatic. A new company must be incorporated and contracts, assets, tax registrations, banking, insurance and customer arrangements may need to move to the company. Plan the transition with an accountant or solicitor where appropriate.
Official Sources
- CRO: registering a business name
- CRO: business-name forms and fees
- CRO: registering a company
- CRO: Irish company types
- Corporate Enforcement Authority: company law FAQs
- Intellectual Property Office of Ireland: trade marks
This guide is general information and is not legal, tax or accounting advice.