How to Register as Self-Employed in Ireland: What to Set Up

Short answer: You register as self-employed in Ireland by registering for Income Tax with Revenue — through eRegistration on ROS, through myAccount if you have a PAYE job, or on Form TR1. You need a PPSN first, and your tax reference number is then that same number. A sole trader gets no separate business tax number. VAT registration only becomes compulsory at €42,500 of turnover for services or €85,000 for goods, and your first Form 11 is due the 31 October after the tax year ends.

Ireland asks more of you at the start than some neighbouring countries do. There is a registration, there is a filing system to get access to, and the access step involves a letter in the post — so start early rather than in the week your first invoice goes out. Revenue is the authority for all of it, and self-employed taxes in Ireland covers what you will pay once you are trading.

Do I have to register to be self-employed in Ireland?

Yes. Trading income makes you a chargeable person under self-assessment, and a chargeable person must be registered for Income Tax and must file a Form 11 each year. The test is not about whether you call it a business — Revenue’s criteria bring you in if any one of these applies.

Situation	Are you a chargeable person?
Income from a trade, profession or vocation, with no PAYE job	Yes
PAYE job plus non-PAYE income over €5,000 net (after expenses, capital allowances and losses)	Yes
PAYE job plus non-PAYE income over €30,000 gross (before capital allowances and losses)	Yes
PAYE job plus non-PAYE income under €5,000 net, taxed at source or coded against your credits	No — you file a Form 12
Rental, foreign or other non-PAYE income only	Yes
Proprietary director — a director owning or controlling a substantial part of a company’s ordinary share capital	Yes

The €5,000 net figure is the one that catches side businesses. A PAYE employee whose weekend work clears €5,000 of net profit moves out of the Form 12 world into full self-assessment, with a preliminary tax obligation and a 31 October deadline attached. Revenue publishes no fixed window for registering, so the practical deadline is the pay and file date for the year you started — but leaving it that late means registering, waiting for ROS access and filing in one month.

Which numbers and identifiers do I actually need?

Fewer than most people expect, and the important one you probably already have.

Identifier	Do you need it?	Cost
PPSN	Yes — required before you can register for tax	Free
Tax reference number	Yes, but it is the same as your PPSN	Free
ROS digital certificate	Yes — you file and pay through ROS	Free
VAT number	Only once you register for VAT	Free
Registered business name	Only if you trade under a name that is not your own	CRO fee — lower online
CRO company number	Only if you incorporate — a different structure entirely	CRO fee

A sole trader does not get a second tax number for the business. Revenue puts it plainly: your Tax Reference Number is the same as your PPSN once you are registered, which is why one Form 11 covers business and employment income together. If you have no PPSN yet, that application comes first — and it goes to the Department of Social Protection, not Revenue.

How do I register for Income Tax with Revenue?

Three routes, depending on what you already have.

1. eRegistration on ROS. Revenue’s stated preference: registering online “is the fastest, cheapest, and most efficient way of registering for tax”. Open to anyone already holding an Irish tax registration number registered for a business tax.
2. myAccount. If you are a PAYE employee starting a business, sign in, choose Tax registrations, then Income Tax, and complete the details asked about your trade.
3. Form TR1 on paper, or Form TR1(FT) if you are non-resident and cannot use the online services.

Then comes the step people underestimate. Once you are registered as a sole trader, you must use ROS to both file returns and make payments — and getting into ROS is a three-part process of its own:

• Step 1 — apply for your ROS Access Number (RAN), which Revenue posts to your home address.
• Step 2 — apply for your digital certificate using the RAN from that letter. A ROS system password is sent by text or email.
• Step 3 — download and save the digital certificate. You cannot access ROS until this is done.

The RAN arriving by post is the whole reason to begin in week one. If you later stop trading, cancel the registration — through eRegistration on ROS, or by contacting your Revenue office — because an open registration keeps generating return obligations.

Do I have to register a business name?

Only if you trade under a name that is not your own true name. “Aoife Byrne” needs nothing. “Byrne Joinery” does.

That registration is with the Companies Registration Office, not Revenue, and it has to be made within a short statutory window after you start using the name — so do it at the same time as the tax registration rather than later. Filing electronically through CORE costs less than filing on paper, and the certificate that issues has to be displayed at your place of business. The CRO publishes the current form, fee and time limit, and those are the numbers to work from: cro.ie.

Registering a business name records that you use it. It gives no ownership and does not stop anyone using something similar — exclusive rights come from trade mark law.

When do I have to register for VAT in Ireland?

Not at the start, for most people. Registration is triggered by turnover over any continuous twelve months, not by the tax year.

What you supply	Threshold
Services	€42,500
Goods	€85,000
Acquisitions from other EU member states	€41,000
Intra-Community distance sales and cross-border TBE services into the State	€10,000

Three things decide most cases.

• It is turnover, not profit. A contractor billing €60,000 of services with €25,000 of costs is over the services threshold, not under it.
• The obligation arises when the threshold is reached, and on a forward look, where you expect to exceed it in any continuous twelve months.
• Below the threshold you may still elect to register. You then reclaim VAT on purchases, but you also file returns and charge VAT, raising your price to any customer who cannot reclaim it.

Once registered you file a VAT 3. The default taxable period is two months, starting on 1 January, March, May, July, September and November, and the return and payment are due by the 19th of the month following the period end — extended to the 23rd for ROS filers. Four-monthly returns are available where your annual VAT liability is €3,001 to €14,400, and six-monthly returns where it is €3,000 or less. An annual Return of Trading Details then sets out purchases and sales for the year, broken down by VAT rate. The standard rate is 23% in 2026, and from 1 July 2026 the 9% second reduced rate applies to hairdressing and to catering, restaurant and hot takeaway food and drink (alcohol, soft drinks and bottled water excluded). Check a specific product on Revenue’s VAT rates lookup. What goes on the invoice is in how to invoice as a sole trader in Ireland.

What will I actually pay on my profits?

Three charges on the same net profit, settled through one return. Income tax runs at 20% up to the standard rate band — for 2026, €44,000 single and €53,000 for a married couple or civil partners with one income — and 40% above it, against a 2026 Single Person credit of €2,000 and an Earned Income Credit of up to €2,000. PRSI Class S starts once income from all sources reaches €5,000, with a minimum annual contribution of €650. The Class S percentage has been rising in steps on 1 October each year, so take the rate for your own year from Revenue rather than from a figure you saw last year. USC applies to gross income before pension contributions:

Band (2026)	Rate
First €12,012	0.5%
Next €16,688	2%
Next €41,344	3%
Balance	8%

Total income of €13,000 or less is exempt from USC — but above that you pay on your full income, not just the excess. It is a cliff edge, not an allowance. The workings behind all three charges are in self-employed taxes in Ireland.

When is my first return due, and do I owe preliminary tax in year one?

The tax year is the calendar year, and the return is due the following 31 October.

What	When
2025 Form 11, self-assessment, balance of 2025 tax and preliminary tax for 2026	31 October 2026
Same, where you both file and pay through ROS	18 November 2026
2026 Form 11 — your first, if you started this year	31 October 2027

The ROS extension is conditional, and the condition is strict: file through ROS and pay through ROS. Filing online and paying by cheque forfeits it. Revenue announces the date annually, so no 2027 date exists yet — plan around 31 October. The return itself is covered in the Form 11 explained.

Preliminary tax is the part that surprises people. On the same date you settle last year, you pay an estimate for the current year, covering income tax, USC and PRSI together. To avoid interest, pay at least the lowest of 90% of this year’s final liability, 100% of last year’s, or 105% of the year before last’s — that third option only applies if you pay by direct debit, and never where that year’s liability was nil. In your first year the second option usually means a prior liability of nil, so no preliminary payment is generally required — the catch is timing, because your first Form 11 then asks for a full year’s tax plus a preliminary payment in one November.

Miss the date and a surcharge lands on the total tax payable for the year, not the unpaid balance: 5%, capped at €12,695, where the return is filed within two months of the deadline, 10%, capped at €63,485, after that. Interest on tax paid late runs on top of the surcharge, and it accrues daily from the due date — Revenue sets the rate, so check the pay and file guidance rather than assuming last year’s.

What should I set up in week one?

None of this needs an accountant, and all of it is easier before there is a backlog.

1. Confirm your PPSN, or apply for one.
2. Register for Income Tax through eRegistration, myAccount or Form TR1.
3. Start the ROS registration immediately — the RAN comes by post, so it is the long pole.
4. Register a business name with the CRO promptly, if you trade under anything other than your own name.
5. Open a separate bank account. Not required for a sole trader, but it turns six years of records into a readable ledger.
6. Fix your invoice numbering and never break the sequence.
7. Start keeping receipts on day one — what qualifies is in expenses and receipts in Ireland.
8. Start a motor log if you drive for work. Ireland has no flat per-kilometre deduction for sole traders — the civil service rates you will find online reimburse employees and office holders. A sole trader deducts the business proportion of actual running costs plus capital allowances, and that split must be evidenced.
9. Move a fixed percentage of every payment into a second account for tax, and diarise 31 October.

How do I keep six years of records without putting them in a cloud service?

Revenue’s rule is that supporting documentation, business accounts included, must be retained for six years, because it can be requested for an assurance check or an audit. That covers sales invoices, purchase receipts, ledgers and the linking documents joining the two. You must prepare accounts, but you do not submit them with the Form 11: you complete the Extracts From Accounts pages — required of all sole traders, whatever the turnover — and keep everything behind them.

Keel: Invoice Maker & Receipts is built for that obligation and nothing more. Invoices go out as PDFs with your own numbering, logo and brand colour, receipts are photographed and read on device by Apple Intelligence, trips are logged with date, distance and purpose, and the year exports as one file for your accountant. There is no account, no sign-in and no bank connection; the App Store privacy label reads “Data Not Collected”, and the ledger underneath is append-only and hash-chained on the device.

The honest tradeoff is that nothing imports itself. With no bank feed, every receipt is a photograph you take and every trip is a log you start — more discipline in the moment, a far smaller pile in October, and what actually counts as a receipt becomes a question you answer as you go.

Keel is free with unlimited invoices, receipts and mileage; Keel Pro is a one-time $249.99 Lifetime purchase, not a subscription. Keel on the App Store.

Frequently asked questions

How do I register as self-employed in Ireland? You register for Income Tax with Revenue using eRegistration on ROS, through myAccount if you are a PAYE employee starting a business, or on Form TR1. You need a PPSN first, and your tax reference number is then the same as your PPSN. After registering you must file and pay through ROS, so start the ROS registration at the same time.

Do I need to register with Revenue if I have a job and freelance on the side? Yes, once the side income is large enough. A PAYE employee with non-PAYE income over €5,000 net or €30,000 gross becomes a chargeable person and must register for Income Tax and file a Form 11. Below €5,000 net, where the income is taxed at source or coded against your credits, you file a Form 12 instead.

Do I need a separate tax number as a sole trader in Ireland? No. Your Tax Reference Number is the same as your PPSN, so business income and employment income sit under one number and one Form 11. A separate number only arises if you register for VAT, or if you incorporate a company — a different legal entity with its own registrations and its own return.

When do I have to register for VAT in Ireland? When your turnover reaches €42,500 for services or €85,000 for goods in any continuous twelve-month period, or when you expect to exceed it. It is turnover, not profit. Lower thresholds apply to EU acquisitions at €41,000 and to distance sales and cross-border TBE services at €10,000. Below the threshold you may register voluntarily.

Do I have to register my business name with the CRO? Only if you trade under a name that is not your own true name. Registration goes to the Companies Registration Office, not Revenue, within a short window of adopting the name, and it costs less filed electronically through CORE than on paper — take the current form, fee and deadline from cro.ie. The certificate has to be displayed at your place of business. It records use of the name; it does not give you exclusive rights to it.

When is my first tax return due as a sole trader in Ireland? The 31 October after the tax year ends, extended to mid-November for people who both file and pay through ROS. A business started in 2026 files its first Form 11 by 31 October 2027. On that same date you pay the balance for the year just filed and preliminary tax for the current year, covering income tax, USC and PRSI.

---

This article is general information, not tax advice. Consult a qualified Irish tax professional.