Going self-employed is one of the more significant decisions a person makes in their working life. Whether you have just set up as a freelance designer, started taking private physiotherapy clients, launched yourself as a personal trainer or yoga teacher, begun your career as a nail technician, or gone out on your own as a virtual assistant or BER assessor, the new-found freedom and flexibility are real. So is the responsibility that comes with managing your own tax.
The good news is that Ireland’s self-assessment system, while it sounds intimidating, is genuinely manageable once you understand what it actually involves. The difficulty is that nobody sits you down and explains it. You are simply expected to know and many people in their first year of self-employment only find out what they should have been doing when October arrives and panic sets in.
This guide covers what you need to know, in the right order, so that your first year does not become a stressful scramble.
Step One: Register with Revenue as Self-Employed
The first thing to do when you start trading (ideally before you issue your first invoice) is register with Revenue as a self-employed person.
You do this online through Revenue’s myAccount portal at revenue.ie. Once you are logged in, go to Manage My Record and select Register for New Taxes. You will complete what is called a TR1 form, which registers you for income tax as a self-employed individual. The process takes around 10 to 15 minutes and is free. Revenue typically processes it within a few working days.
Legally, you must register within 30 days of starting to trade. Registering late does not make you exempt from tax that should have been paid in the interim, it simply creates a problem you will have to untangle later. Register early and you avoid that entirely.
Once you are registered, Revenue will set you up under the self-assessment system. This means you are responsible for calculating and paying your own tax, rather than having it deducted automatically through PAYE.
What You Will Actually Be Paying
As a sole trader in Ireland, you pay three things on your net profit: Income Tax, Pay Related Social Insurance (PRSI), and the Universal Social Charge (USC). It is worth understanding each briefly, because seeing them as three separate items rather than one lump sum makes it easier to plan.
Income Tax
Income Tax is charged at 20% on taxable profits up to the standard rate band (€42,000 for a single person in 2025 and 2026), and at 40% on everything above it. One important thing to note: as a self-employed person, you receive the Earned Income Tax Credit rather than the Employee PAYE Credit. Both are worth €2,000 in 2026 and have the same practical effect of directly reducing your tax bill.
PRSI
PRSI for self-employed people is Class S. The rate was 4% in 2025, with an increase to 4.2% taking effect during the year, blending to 4.125% for annual returns for 2025. From October 2026, it will increase to 4.35%. The minimum annual PRSI contribution is €650, regardless of income level. Your PRSI contributions as a self-employed person build entitlement to certain social welfare benefits, including the State Pension, so they matter beyond just being a tax.
USC
USC (Universal Social Charge) applies on a graduated basis. The rates for 2026 are: 0.5% on the first €12,012; 2% on the next €15,370 (up to €27,382); 3% on the next portion up to €50,500; and 8% on anything above that. Self-employed income above €100,000 attracts an additional 3% surcharge USC.
The Earned Income Tax Credit
One thing that catches new sole traders out is the assumption that because they are self-employed, they are somehow missing out on tax credits. You are not. The Earned Income Tax Credit is worth €2,000 in 2026 and applies to all self-employed individuals automatically. Combined with your Personal Tax Credit, a single person has €4,000 in tax credits.
Credits reduce your tax bill directly as they come off the amount you owe rather than reducing the income on which tax is calculated.
Step Two: Understand the Pay and File System
This is the part that confuses most people new to self-employment, and it is worth taking a moment to get it straight.
Every year, by 31 October (or mid-November if filing online), you are required to do two things simultaneously:
First, file your Form 11 for the previous tax year and pay any balance of tax owed for that year. So if you are filing in October 2026, you are filing for the 2025 tax year and paying whatever you owe for your 2025 income after taking into account any preliminary tax you already paid.
Second, pay preliminary tax for the current tax year, in this case 2026. Preliminary tax is an estimate of the tax you expect to owe for the year you are currently in. It is due at the same time as your previous year’s return.
There are three ways to calculate preliminary tax: pay 100% of what you owed last year; pay 90% of what you expect to owe this year; or in some cases pay 105% of the liability from two years ago. For most people, paying 100% of the previous year’s liability is the simplest approach.
If you file and pay online, you typically get an extended deadline which in recent years this has been to mid-November, though the exact date is confirmed by Revenue each year.
There is a tax penalty applied in addition to your normal tax bill if you miss the filing deadline. There is an extra year’s grace allowed for new self-employed persons to file their first-year details. However, the preliminary tax payment obligations apply as normal.
Step Three: Start Keeping Records Immediately
Revenue requires you to keep business records for six years. What this means in practice is that you need to retain evidence of every payment you received and every expense you are claiming, invoices, receipts, bank statements.
The good news is that this does not have to be complicated. A folder on your phone where you photograph receipts as they arrive, or a simple spreadsheet where you log income and expenses each month, is sufficient for most sole traders.
The habit of recording as you go is the key. Trying to reconstruct twelve months of income and expenses in October, from memory and intermittent bank records, is stressful and inaccurate. Fifteen minutes at the end of each week is enough to stay on top of it.
Step Four: Know What You Can Claim
Allowable business expenses reduce your taxable profit which means they reduce your tax bill. The governing principle from Revenue is that an expense must be “wholly and exclusively” incurred for the purpose of your trade.
For a new sole trader, the most commonly claimable expenses include equipment and tools, phone and broadband (business-use proportion), professional membership fees, insurance, marketing and website costs, training and CPD, and home office costs if you work from home.
For a more detailed breakdown of what you can claim across each of these categories, including examples relevant to different professions, see our post on Tax Deductions Self-Employed Professionals in Ireland Are Missing.
Step Five: Plan for the Tax You Will Owe
This is perhaps the most practically important thing in your first year of self-employment, and the one where people most commonly get themselves into difficulty.
Unlike PAYE employment, where tax is deducted before you receive your pay, as a self-employed person you should set aside funds to pay the tax owed. If you do not do this deliberately, the money gets spent, and October becomes a crisis.
A reasonable starting point for a single person earning at a moderate level, taking into account income tax, PRSI, and USC, is to set aside somewhere between 25% and 35% of every payment you receive, depending on your income level. A separate bank account for this purpose, where you transfer the reserved tax amount every time you receive a payment, can really make the difference between a manageable October and a very stressful one!
If you want a clearer picture of what your actual liability is likely to be, our Self-Employed Tax Calculator gives you a real-time estimate based on your income and expenses.
Step Six: Decide How You Will File
When October comes, you have a few options for filing your Form 11.
You can use Revenue’s ROS (Revenue Online Service) system directly. It is free, but it is not designed for ease of use, the interface is complex, the language is technical, and it is easy to make mistakes or miss things if you are not familiar with it.
You can hire an accountant. This is the most expensive option, and for a straightforward sole trader return, often more than is needed.
Or you can use FastTax.ie. Our guided tool pulls your information from ROS, walks you through only the fields that are relevant to your situation, prompts you on claimable deductions, and checks for errors before submission. It makes it easy for you to complete your Profit & Loss account directly in our system. You stay in control of your own return, with the option to have a tax expert review it before you file (Plan 2 Plus) or have our team file it on your behalf (Plan 3 Premium). Most of our customers complete their return in under two hours. See details of plans here: https://fasttax.ie/form-11-tax-returns/
One Last Thing: The VAT Question
You do not need to register for VAT unless your turnover exceeds (or is likely to exceed) €42,500 per year for services or €85,000 for goods. Below this threshold, VAT registration is voluntary. In your first year, unless your income is likely to be above these levels, you almost certainly do not need to worry about VAT.
In summary, the self-assessment system asks you to do a few things every year: know what you earned, know what you legitimately spent, know what you owe, and pay it on time. None of it is beyond the average person once the system is explained clearly.
Start your Form 11 with FastTax.ie | Try our Self-Employed Tax Calculator.
