It depends on your turnover and the risk of your activity:
- Self-employed is simpler and cheaper to maintain. No deed, no Companies Registry, no annual accounts. But you are liable with all your personal assets if something goes wrong.
- SL limits your liability to the contributed capital (minimum €3,000). If the company has debts, your home, car and personal savings are protected (except in cases of negligent management).
Tax-wise: self-employed pay income tax (up to 47% in the highest brackets). The SL pays Corporation Tax at 25% (15% for the first two years for new companies). If you invoice more than €40,000-50,000/year, the SL is usually more tax-efficient.