You can claim a wide range of allowable expenses against your trading income, including home office costs (light, heat, broadband), business travel at Revenue-approved mileage rates, equipment and tools, training and professional subscriptions, and pension contributions.

Yes — you can claim a portion of your mortgage interest/rent, electricity, heating, and broadband based on the percentage of your home used exclusively for work. Revenue also allows a simplified e-working daily rate of €3.20 per day.

Revenue approved mileage rates for 2025 are €0.4848 per km for the first 6,437 km, then €0.2725 per km thereafter. You can claim business travel only, not commuting from home to a regular workplace.

Yes, self-employed individuals in Ireland must file an annual Form 11 through Revenue's myAccount or ROS system. The deadline is 31 October (or 15 November for ROS e-filing) following the end of the tax year.

Yes, self-employed individuals can claim pension contributions as a trading expense. The contributions reduce your taxable profit and benefit from tax relief at your marginal rate. The age-related limits (15-40% of earnings) apply.

Allowable expenses (like rent, utilities, subscriptions) are fully deductible in the year incurred. Capital expenses (like buying a computer or tools) are deducted over several years through capital allowances at 12.5% or 20% per year.

Self-employed individuals pay PRSI Class S at 4% of all income. This covers you for certain benefits including State Pension (Contributory), but does not cover Jobseeker's Benefit or Illness Benefit. The minimum annual PRSI contribution is €500.

USC rates for self-employed are the same as for employees: 0.5% on first €12,012, 2% on next €15,779, 4.5% on next €56,209, and 8% on income over €84,000. Self-employed individuals with income over €100,000 pay 8% on all income over €100,000.

Yes, annual subscriptions to professional bodies relevant to your trade or profession are deductible. This includes bodies like CPAI, ACCA, Engineers Ireland, and other recognised professional organisations.

Self-employed individuals must keep all business records and receipts for at least 6 years after the end of the tax year to which they relate. Revenue may request to see these records during a compliance audit.

Preliminary tax is due by 31 October each year (for the previous year's return). If you don't pay enough preliminary tax, Revenue will charge interest on the underpayment. The interest rate is currently 0.0274% per day (approximately 10% per year).

Yes, training courses and CPD that are directly related to your current trade or business are deductible. Courses that qualify you for a new trade or profession are generally capital in nature and not deductible.