Self-Employed Calculator2025-09-29T06:44:13+00:00

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

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.

FAQs About Tax for the Self-Employed in Ireland

I’ve started self-employment – what do I need to do about tax?2025-07-16T09:40:39+00:00

If you’ve become self-employed in Ireland, there are a few key steps to get your tax sorted:

  • Register with Revenue
    Sign up as self-employed using Revenue’s Online Service (ROS). You’ll need your PPS number and will be issued a Tax Reference Number.
  • Know what taxes you’ll pay
    • Income Tax
    • PRSI (Pay Related Social Insurance)
    • USC (Universal Social Charge)

These are paid under the self-assessment system.

  • Pay Preliminary Tax
    This is a payment towards your current year’s tax bill, due by 31 October each year.
  • Keep good records
    Track all income and business expenses. Keep receipts, invoices, and bank statements in case Revenue ever asks to see them.
  • Claim your tax credits
    Most self-employed people can claim the Earned Income Tax Credit – worth up to €2,000 in 2025.
  • Check if you need to register for VAT
    If your turnover goes over €85,000 (goods) or €42,500 (services), you must register for VAT.
  • File a Form 11 every year
    Your tax return (Form 11) and final payment are due by 31 October for the previous year. If you e-file via ROS, you usually get a short extension until mid-November.

Our team of tax experts can advise you on your obligations. Contact us at info@fasttax.ie to hear more.

Do I have to register for VAT?2025-07-16T09:41:11+00:00

You must register for VAT if your turnover goes above certain thresholds:

  • €85,000 – For selling goods.
  • €42,500 – For providing services.
  • €85,000 – For mostly goods plus some services (90% goods).
  • €10,000 – If you sell digital services (TBE) or goods into Ireland from another EU country.
  • €41,000 – If you buy goods from other EU countries.

These apply over any rolling 12-month period – not just the calendar year.

You can also register voluntarily, even if you’re below the thresholds. This can be useful if you want to reclaim VAT on business expenses, especially if your customers are VAT-registered themselves.

Once registered, you must:

  • Charge VAT on sales.
  • Submit VAT returns (usually every 2 months).
  • Keep proper records.

Failing to register when required can result in penalties.

We can help you with the best way to record your details and complete required VAT returns.

Is there a special tax break for the self-employed?2025-07-16T09:42:40+00:00

Yes. If you’re self-employed, you may qualify for the Earned Income Tax Credit – worth up to €2,000 in 2025. FastTax.ie makes it easy to apply your tax credits.

This credit is for:

  • Sole traders and freelancers
  • Proprietary directors
  • Anyone earning income from a trade or profession (not passive income like rent or dividends)

You can’t claim both the Earned Income Credit and the PAYE Credit in full – the maximum between them is €2,000.

Other useful tax reliefs include:

  • Claiming business expenses (rent, phone bills, software, etc.)
  • Pension contributions, which reduce your taxable income
  • Start-Up Refunds for Entrepreneurs (SURE) if you’re leaving PAYE work to start a business. If you were an employee, an unemployed person or a person recently made redundant, provided that your main income in recent years was PAYE, you may qualify for a refund in income tax to help start a new company.

The Earned Income Credit is usually applied automatically when you file your tax return.

Can I offset RCT against other taxes?2025-06-24T09:54:53+00:00

Yes — once your tax return is filed, Revenue automatically applies RCT credits against:

  • Income Tax or Corporation Tax
  • Preliminary Tax
  • PAYE (if you’re an employer)
  • VAT
  • Any other liabilities

Remaining RCT credits can be refunded or carried forward.

How do I check that the contractor paid my RCT?2025-06-24T09:54:37+00:00
  • Log into ROS to see RCT credits under “RCT Deduction Summary.”
  • Revenue issues a Deduction Authorisation for each payment.
  • Contractors must provide you with RCT details.
  • If you don’t see the credit, check with the contractor or contact Revenue.
I’m a subcontractor under RCT. Do I still need to file a tax return?2025-06-24T09:54:23+00:00

Yes — RCT is a withholding tax, not your final tax liability. You must:

  • File an annual Income Tax return (Form 11) or Corporation Tax return (CT1).
  • Declare all income and expenses.
  • Claim credits or refunds due.

Revenue won’t refund RCT until your tax return is filed and other liabilities are up to date.

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