One of the most important decisions you will make when starting a business in Ireland is choosing your business structure. The two most common options are operating as a sole trader or setting up a limited company. Each has distinct advantages and disadvantages in terms of taxation, legal liability, administrative burden, and flexibility.
Sole Trader: The Basics
As a sole trader, you and your business are the same legal entity. You report your business income on your personal tax return (Form 11) and pay income tax, USC, and PRSI on your net profits. Setting up is simple — you register with Revenue as self-employed and can start trading immediately.
Advantages:
- Simple and cheap to set up — no company registration fees
- Minimal ongoing compliance requirements
- You control all decisions and keep all profits (after tax)
- Business losses can be offset against other personal income
- Privacy — no requirement to file public accounts
Disadvantages:
- Unlimited personal liability — your personal assets are at risk if the business incurs debts
- Higher tax rates on profits above €42,000 (40% income tax + USC + PRSI)
- Cannot retain profits in the business at a lower tax rate
- May be perceived as less professional by some clients
Limited Company: The Basics
A limited company is a separate legal entity from you as an individual. You are a director and/or shareholder. The company pays corporation tax on its profits at 12.5% (for trading income). You then take money out of the company through a salary, dividends, or a combination of both.
Advantages:
- Limited liability — your personal assets are generally protected
- Lower corporation tax rate of 12.5% on trading profits
- Ability to retain profits in the company for reinvestment
- More tax planning opportunities (salary vs dividends, pension contributions)
- Perceived as more professional and credible
Disadvantages:
- Higher setup and compliance costs (CRO registration, annual returns, audits)
- Must file annual returns with the Companies Registration Office (CRO)
- Company accounts are publicly available
- Extracting profits is subject to additional tax (income tax on salary, dividend withholding tax)
- Director duties and legal obligations
Tax Comparison
The tax treatment is where the biggest differences emerge. Consider a business making €80,000 profit:
As a sole trader:
- Income tax: €42,000 at 20% + €38,000 at 40% = €23,600
- Less tax credits (approx €3,750)
- Plus USC: approx €3,100
- Plus PRSI at 4%: €3,200
- Total tax: approximately €26,150
- Net income: approximately €53,850
As a limited company (paying yourself €50,000 salary and retaining €30,000):
- Corporation tax on retained €30,000: 12.5% = €3,750
- Your personal tax on €50,000 salary: approx €12,855
- Employer PRSI on salary: approx €5,525
- Total tax: approximately €22,130
- Your net income: €37,145 (plus €26,250 retained in company)
The company structure can produce tax savings, but the benefit depends on how much you need to extract from the business. If you need all the profit as personal income, the advantage narrows significantly because you pay personal tax when extracting retained profits.
When Should You Incorporate?
As a general guide, incorporating becomes worth considering when:
- Your annual profits consistently exceed €50,000-€60,000
- You want to retain profits in the business for growth or investment
- You need limited liability protection
- You are planning for retirement (companies can make larger pension contributions)
- You want to bring in business partners or investors
Compliance Costs
Running a limited company involves ongoing costs that sole traders avoid:
- CRO annual return fee: €20
- Accountancy fees: typically €2,000-€5,000 per year (vs €500-€2,000 for sole traders)
- Audit fees (if required): €2,000-€5,000+ per year
- Company secretarial services: €200-€500 per year
Small companies may qualify for audit exemption if they meet certain size criteria, which can significantly reduce costs.
Final Thoughts
There is no one-size-fits-all answer. For businesses with modest profits where you need all the income personally, operating as a sole trader is often simpler and more cost-effective. For businesses with higher profits, growth plans, or a need for limited liability, incorporating as a limited company usually makes more sense. Use our sole trader vs company calculator to model the numbers for your specific situation.