Self-Employed Income Tax Calculator
How Self-Employed Tax Is Calculated in Ireland
Self-employed individuals in Ireland fall under the self-assessment system, and are obliged to calculate, pay and file their annual income tax using a Form 11. Put simply, income tax, PRSI and USC are applied to net profit (total sales minus allowable business expenses).
Sales / Receipts / Turnover:
Total Sales
Cost of Sales
Opening Stock Value
Stock Purchases for year
Less Closing Stock Value
Cost of Sales
Gross Profit
Costs
Rent
Salaries
Light & Heat
Petrol & Diesel
Motor Leasing Costs
Other Motor Costs
Telephone
Professional services
Printing, Postage & Stationery
Repairs & Renewals
OTHER COSTS, Bank Interest & Charges
Total Costs
Net Profit
Assuming the 40% tax rate applies Income Tax 40%
PRSI 4%
USC 8%
Total 52%
Self-Employed Income Tax Calculator
Our self-employed income tax calculator is designed to give a estimated tax liability for individuals with PAYE and/or self-employed income. Simply enter your sales and costs of sales, and we’ll calculate your estimated liability. (Assuming the higher rate of 40% income tax, 4% PRSI and 8% USC). This is for guidance only, and may not reflect final liability.
What Expenses Can Be Deducted Against Income?
For an expense to be deductible, it must be incurred wholly and exclusively for the purposes of the trade. Common allowable expenses include rent, utilities, salaries, fuel, phone, office supplies, insurance, and professional services if used for the trade. Common disallowable expenses include client entertainment, interest on late payment of tax, the creation or increase of general provisions, and motor leasing expenses (for certain categories of car).
PAYE & Self-Employed Income: What You Need to Know
If you earn both PAYE income and self-employed income, you’ll likely need to file a Form 11. That’s because Revenue views your total income together when calculating your tax. Your PAYE earnings and self-employed profits are taxed as one, which can affect your tax credits, standard rate cut-off, and overall liability. Once your non-PAYE income goes over certain thresholds (usually €5,000 net profit or €30,000 gross profit), filing becomes mandatory and you may need to pay Preliminary Tax too.

