Most people who set out to start a business in Ireland already know the idea has legs. What stops them is the bit in between, the maze of registrations, structures, tax obligations and grant applications that nobody briefed them on.
This step-by-step guide is for first-time founders, side-hustlers, and anyone who has decided that this is the year. We walk you through the four things that actually matter early on: testing whether your business idea is viable, lining up the cash, picking the right legal structure, and understanding what you must register and when. Get those right, and the rest is execution.
If you want a sounding board before you commit, you can talk to our team. Kinore works with hundreds of Irish business owners across sole trader setups, limited companies, and scaling SMEs, so we have seen most of the early mistakes and how to avoid them.
Have you tested your business idea thoroughly?
Before you spend a euro on a logo or a website, pressure-test the business idea. Talk to ten potential customers in the next two weeks. Ask them what they currently do to solve the problem, what they pay, and what they would change. If you cannot find ten, your market is narrower than you thought. A viable business idea has a clear target customer, a price that comfortably covers your costs, and a believable sales channel. Everything else, including the brand and the office, can wait.
While you are at it, sit down with an accountant, a solicitor and a Local Enterprise Office mentor. The Local Enterprise Office runs free mentoring sessions across all 31 county and city offices, and a single hour with the right mentor can save you months. Citizens Information is also a strong starting point for any new business, with plain-English guides on legal structures, tax and employment.
Is your business a small business or a high-potential startup?
This distinction matters because it determines where your funding comes from. A local cafe, an independent consultancy or a domestic retail brand is a small business; it serves a defined market and grows steadily. A high-potential startup (often called an HPSU) is built to scale internationally, usually with a technology or innovation angle. Small and medium businesses generally work with their Local Enterprise Office; HPSUs work with Enterprise Ireland. Pick the right lane early, because the eligibility rules for grants and supports differ sharply between the two.
Which legal structure should you choose when you set up a business?
Your legal structure shapes your tax bill, your personal liability, your admin overhead, and how credible you look to suppliers and customers. The three structures used by most new businesses in Ireland are sole trader, partnership, and limited company. The right choice depends on your goals, your appetite for paperwork, and how much risk sits on your personal balance sheet.
| Feature | Sole trader | Limited company |
| Setup | Register for income tax with Revenue; register a business name with the CRO if trading under a name other than your own | Incorporate with the Companies Registration Office, appoint at least one director, file a constitution and issue share capital |
| Personal liability | Unlimited; your personal assets are exposed to business debts | Limited to your share capital; the company is a separate legal entity |
| Tax | Income tax up to 40%, plus USC and PRSI on profits | 12.5% corporation tax on trading profits; income tax on what you draw as salary or dividends |
| Annual filings | Form 11 income tax return | Annual return and abridged or full accounts to the CRO, plus a CT1 to Revenue |
| Public record | Business name register if applicable | Full director and shareholder details visible on the CRO public register |
| Best for | Freelancers, contractors and lifestyle businesses with low risk | Founders raising investment, hiring staff, or trading where liability matters |
You do not have to commit forever. Plenty of founders start as a sole trader to test the market, then switch to a limited company once revenue is consistent or they take on a co-founder. The transition is straightforward if your accountant plans it properly, but it does have tax and timing implications, so do not leave it to the last minute.
What’s involved in setting up as a sole trader?
A sole trader is the simplest way to start a business in Ireland. You register for income tax through Revenue’s ROS portal, file a Form 11 each year, and pay income tax, USC and PRSI on your profits. If you want to trade under a name other than your own personal name, you must register that business name with the Companies Registration Office (CRO) using Form RBN1, currently €40 online. Every sole trader should keep a separate business bank account; your bookkeeping becomes a nightmare if you do not.
What are the key requirements to set up a limited company in Ireland?
To set up a limited company you incorporate through the CRO, usually via the CORE online portal. Most company formations in Ireland take three to five working days. The minimum requirements are:
- Company name, checked against the CRO register to confirm it is not too similar to an existing name
- At least one director who is resident in the European Economic Area, or a Section 137 non-resident director bond if not
- A company secretary, which can be the sole director if there are two or more directors, or a corporate secretary
- Registered office in Ireland where official correspondence is served
- Constitution setting out the company’s principal activities, share capital and rules
- Issued share capital, often a nominal €100 split between founders
You can do this yourself, but most founders use a company formation agent or their accountant to avoid mistakes that cause a rejection and a re-submission. Limited companies must also register with Revenue for corporation tax within 30 days of starting to trade, and the company must file an annual return with the CRO every year, even if it has not traded.
What funding options are available for a new business in Ireland?
Most founders fund the first stage from personal savings, then layer in grants, loans, or investment as the business proves itself. The trick is to budget honestly. Add your living costs to your business costs, then add a tax reserve, and that is your real runway. Underestimate this and you will run out of cash exactly when momentum is starting to build.
One useful quirk of the Irish system: you can be employed and self-employed at the same time. Many founders keep a day job for the first six to twelve months while they test the business idea on evenings and weekends. Revenue treats your employed PAYE income and your self-employed income separately on the same Form 11, but you do need to keep the books clean from day one.
What Local Enterprise Office grants can you apply for?
The Local Enterprise Office network is the first port of call for most small businesses. The headline supports include:
- Priming Grant for businesses trading less than 18 months. According to LEO guidance, this grant can go up to €150,000 in exceptional cases, although most awards are considerably smaller and capped at 50% of investment
- Business Expansion Grant for established businesses ready to scale, also worth up to €150,000 against eligible costs
- Trading Online Voucher of up to €2,500 to develop e-commerce or improve a website
- Feasibility Study Grant to research a new product or market, typically up to €15,000
- Free training, mentoring and Start Your Own Business courses run all year round
To apply for any of the financial supports you will need a written business plan, financial projections, and evidence that the business will create or sustain employment. Speak to your LEO before you apply; their feedback on a draft application is genuinely helpful and the success rate is materially higher for applications that have been pre-screened.
When does Enterprise Ireland funding apply?
Enterprise Ireland supports the scaling end of the spectrum: companies with export ambition, innovation, and a credible path to ten or more employees. Their High Potential Start-Up (HPSU) programme is the well-known route. If your venture is a lifestyle business or a local services company, Enterprise Ireland is not the right door. If you are building a software product, a deep-tech company, or anything aimed at international markets, it almost certainly is.
What other financing routes are common for Irish founders?
Beyond grants, the main options are bank lending, credit unions, and Microfinance Ireland. Microfinance Ireland offers loans from €2,000 to €25,000 to small businesses that cannot get credit from the banks, and they accept applications from sole traders, partnerships and limited companies. If a bank refuses you credit, you can also request a review through the Credit Review Office, which has a free, independent process for SMEs. Some founders also use approved profit-sharing schemes or business angels through networks like Halo Business Angels, but those are typically further down the road.
Tax and compliance: what every new business owner must register for
The Irish tax system is fair but unforgiving of late filings. Every business owner should know which registrations apply to them from day one.
- Income tax: sole traders register on ROS using a TR1 form. Limited companies register for corporation tax using a TR2
- VAT: you must register your business for VAT once turnover passes €42,500 for services or €85,000 for goods in any twelve-month period. You can also register voluntarily before that, which is often sensible if your customers are themselves VAT-registered
- PAYE/PRSI: as soon as you take on staff, the company must register as an employer and run payroll through Revenue’s PAYE Modernisation system every pay run
- Relevant Contracts Tax (RCT): applies in construction, forestry and meat processing
- Auto-enrolment pensions: from 1 January 2026, all eligible employees aged 23 to 60 earning more than €20,000 must be enrolled in the new state-backed pension scheme
Limited companies must also file beneficial ownership information on the Central Register of Beneficial Ownership (RBO) within five months of incorporation, and update it whenever ownership changes. Late or missing filings carry penalties for both the company and its directors personally.
Are you ready to be your own boss?
The technical side of starting a business is the easy part. The harder part is whether you have the temperament to keep going when momentum stalls. The first two years of any new business are dominated by selling, problem-solving and cash management. If you dislike selling, plan for that gap honestly, either by training, hiring, or finding a co-founder whose strengths complement yours.
Personality assessments such as Gallup CliftonStrengths or the LEO’s own readiness questionnaires can flag risk areas before you discover them the hard way. Joining a peer network early also helps; the Local Enterprise Office events, industry associations, and local founder meetups give you somewhere to test ideas with people who are six months ahead of you on the same path. If you want to grow your business faster than the average founder, plug into a peer network early; momentum compounds when you are surrounded by people six months ahead of you on the same path.
Where to get advice and support for starting a business in Ireland
The three sources of advice every founder should line up early are: a Local Enterprise mentor (free, practical, locally focused), Citizens Information (clear, official, jargon-free guidance on tax, employment and regulation), and a digital-first accountant who understands ambitious SMEs. Get those three relationships in place before you incorporate, and you will avoid the most common early mistakes.
If you want a structured conversation about which legal structure fits your goals, how to sequence your funding, and what to register and when, that is exactly the kind of thing we help business owners with every week. Book a no-pressure call with the Kinore team and we will map the right path for your business.
Frequently asked questions about starting a business in Ireland
Can you be employed and self-employed at the same time in Ireland?
Yes. There is no legal block on holding a PAYE job and running your own business simultaneously, although you should check your employment contract for any restrictions on outside activity. You report both income streams on the same Form 11 each year, and pay income tax, USC and PRSI on the combined total. Many founders use this arrangement to test the business idea before going full-time.
What is the first step to start a business in Ireland?
Talk to potential customers and validate the business idea before you spend money on incorporation, branding, or premises. Once the idea holds up, the practical first step is choosing a structure (sole trader or limited company) and registering with Revenue and, if applicable, the Companies Registration Office.
Do I need to register a limited company to start a business?
Not always. A sole trader setup is faster, cheaper, and perfectly suitable for low-risk service businesses such as consulting, design, or coaching. You should set up a limited company when liability matters, when you plan to raise external investment, or when corporation tax at 12.5% becomes meaningfully better than income tax on retained profits.
What grants are available for starting a business in Ireland?
The Local Enterprise Office offers Priming Grants and Business Expansion Grants up to €150,000, Trading Online Vouchers up to €2,500, and Feasibility Study Grants up to €15,000. Enterprise Ireland funds scalable, export-focused startups through programmes such as the High Potential Start-Up route. Microfinance Ireland provides loans of up to €25,000 for businesses that cannot get bank credit.
What if I am refused credit for my business?
You can ask the bank for a written explanation, request a review through the Credit Review Office, or approach Microfinance Ireland for a small business loan up to €25,000. Your Local Enterprise Office can also help you strengthen a future application, particularly by reviewing your business plan and financial projections before you re-submit.
The information provided in this article is for general guidance and informational purposes only. It does not constitute professional accounting, tax, or financial advice, and should not be relied upon as a substitute for advice tailored to your specific circumstances. While we take care to ensure the content is accurate and up to date at the time of publication, legislation, tax rates, thresholds, and compliance requirements in Ireland can change.
