The fastest route is also the least glamorous one: work out whether registration is actually compulsory for you, gather real evidence that you are trading (or genuinely about to), and then submit the application through Revenue Online Service (ROS) using the eRegistration facility. If online registration is not available to you, the equivalent paper form does the same job, just more slowly.
Here is the short version before we get into the detail.
| Question | Short answer |
|---|---|
| What does it cost? | Nothing. The Revenue Commissioners charge no application fee. An accountant or tax agent may charge for handling it. |
| How long does it take? | Two to four weeks is realistic for a complete, straightforward application. Revenue does not guarantee a turnaround time. |
| Where do I apply? | ROS eRegistration, via the TR1 route (individuals, sole traders, partnerships, trusts) or TR2 route (companies). |
| What will slow it down? | Thin evidence of trading, an intra-EU application, vague activity descriptions, or unanswered Revenue queries. |
So what is a VAT number, in plain terms? Value-Added Tax (VAT) is a tax on consumption, collected at each stage of the supply chain by businesses on Revenue’s behalf. Your VAT number identifies you as a VAT-registered taxable person. It lets you charge VAT on your sales, report what you have collected, and (where the rules allow) reclaim VAT you have paid on business costs. It goes on your invoices, your VAT returns, and on relevant EU paperwork.
One caution before you start. Turnover thresholds are the usual trigger, but they are not the only one. International transactions, a business managed from outside Ireland, and certain purchases from abroad can all pull you into the VAT net regardless of how small your sales are. More on that below.
Do I need to register for VAT in Ireland?
You need to register if you are a taxable person carrying on an economic activity in the State and your taxable turnover exceeds, or is likely to exceed, the relevant threshold. “Taxable person” is broader than most people expect. It covers sole traders, partnerships, limited companies, farmers, charities running a trading arm, and other bodies making taxable supplies. Your legal structure does not decide the question, although it does change which form you use (if you are still weighing that up, our guide to sole trader versus limited company in Ireland is a good starting point).
The bit that trips people up most often is the measurement period. The test is any continuous 12-month period, not your calendar year and not your accounting year. A rolling window. If your turnover for the 12 months to the end of March breaches the threshold, that matters, even though your year end is December.
Irish VAT registration thresholds in 2026
| Threshold | Amount | Applies to |
|---|---|---|
| Services | €42,500 | Supply of services, and goods manufactured from zero-rated materials |
| Goods | €85,000 | Supply of goods, including mixed supplies where 90% or more of turnover comes from goods |
| Intra-Community acquisitions | €41,000 | Goods acquired from other EU member states |
| Cross-border B2C distance sales and TBE services | €10,000 (EU-wide) | Sales to consumers in other member states, handled through One Stop Shop (OSS) |
Figures per Revenue’s VAT thresholds guidance. Always check the current page before you act, because thresholds do move.
Calculating taxable turnover is mostly common sense. You are counting the value of your taxable supplies, excluding the VAT itself. Exempt activities (certain financial, medical and educational services, for example) sit outside the calculation, and so do disposals of capital assets such as a van you have finished with.
A worked example. A Limerick electrician bills roughly €3,800 a month. By month eleven the rolling total sits around €41,800, comfortably under. Then a commercial rewiring job lands for €9,000 in month twelve. The 12-month total jumps to about €50,800, well past the €42,500 services threshold. The obligation bites when it becomes likely that the threshold will be exceeded, not when the invoice is finally paid, so this electrician should be registering before that job completes, not after the accountant spots it in the following April.
Turnover thresholds will not always protect you. Register regardless of turnover if any of these apply:
- You are a non-established trader making taxable supplies in Ireland without a business establishment here.
- Your intra-Community acquisitions of goods exceed €41,000 in a 12-month period.
- You receive taxable services from abroad for business purposes and must account for the VAT yourself under the reverse charge.
- You are involved in certain property transactions or other specified supplies with their own rules.
Do not confuse those with the €10,000 EU-wide figure. That one applies to cross-border sales to consumers in other member states and to telecommunications, broadcasting and electronic services. Once you cross it, VAT is due in the customer’s country, usually reported through OSS rather than through a separate registration in each state.
Should I register voluntarily if I am below the VAT threshold?
You can elect to register before you hit the threshold, provided you are carrying on an economic activity or can demonstrate a genuine intention to trade. Plenty of businesses do. Whether you should is a margin question, not a compliance one.
| Registering voluntarily helps when | It hurts when |
|---|---|
| You are buying equipment, stock or professional services and want to reclaim the VAT on them | You sell mainly to consumers, who cannot reclaim the VAT you add |
| Your customers are VAT-registered businesses who simply reclaim what you charge | You would have to absorb the VAT to stay price competitive, cutting your margin |
| You are in a start-up or fit-out phase with heavy input costs and modest sales | Your input costs are low, so there is little VAT to recover |
| You expect to cross the threshold within a year anyway | You have no bookkeeping system and no appetite for bi-monthly returns |
The obligations are the same whether you registered by choice or by force. You charge VAT where it applies, issue compliant invoices, keep the records, file on time and pay on time. That last part matters. Voluntary registration is not a badge, it is a commitment, and Revenue treats a voluntary registrant’s late return exactly as it treats anyone else’s.
Think of a small Munster café selling directly to the public. Adding 23% or 13.5% to the menu either raises prices or eats the margin, and the customer gains nothing. Contrast that with a contractor fitting out commercial units, whose clients reclaim every cent charged. Same threshold, opposite decision.
What if it stops making sense? You can apply to cancel a registration if you cease trading or no longer need to be registered, but it is not a clean exit. Revenue sets conditions, and where you reclaimed VAT on assets or set-up costs, an adjustment may be due to claw some of that back. Worth a conversation before you pull the trigger.
How do I apply for a VAT number in Ireland?
The mechanics are straightforward once your business is known to Revenue. Here is the sequence.
- Make sure the business is registered with Revenue and has a tax reference number. Companies will already have one following incorporation with the Companies Registration Office (CRO); individuals use their PPS number or an equivalent identifier.
- Set up or log in to your ROS account. Sole traders without a ROS certificate may use myAccount or apply through an agent.
- Open the tax registration service (eRegistration) and select VAT as the tax head you wish to add.
- Enter the business details: legal and trading names, address, a specific description of the activity, expected turnover, customer type and your proposed registration date.
- Choose domestic-only or intra-EU registration.
- Upload or provide the supporting evidence, then submit and monitor your ROS inbox and post for queries.
| Business type | Usual route |
|---|---|
| Individual, sole trader, trust or partnership | TR1 route through ROS eRegistration, or the paper TR1 where online filing is not available |
| Limited company | TR2 route through ROS eRegistration, normally filed by the company or its tax agent |
| Tax agents acting for clients | ROS agent services, linked to the client’s tax reference number |
Form numbers and online filing rules are reviewed periodically, so confirm the current position on Revenue’s registration page before you file.
Now, the two-tier system, which has been in place since 2019 and still catches people out. A domestic-only registration covers you for trade within Ireland. An intra-EU registration additionally covers acquisitions and supplies within the EU, and it is the one that makes your number valid for checking on the European Commission’s VIES system. Revenue applies more scrutiny to intra-EU applications, so expect to work harder for the evidence. If you only trade domestically today, apply domestic-only and upgrade later rather than delaying the whole thing.
Applying on an intention to trade? Incorporating a company is not evidence of anything except that you paid a filing fee. Revenue wants to see credible signs of planned taxable activity: signed contracts, quotes accepted, a lease, orders placed with suppliers. VAT group registration and divisional registration exist for connected companies and larger structures, but they have their own conditions and are rarely worth attempting without advice.
What documents and evidence will Revenue ask for?
Revenue is checking one thing above all: that a real business is doing real taxable work. Everything on the list below is in service of that.
Core information you will be asked for:
- Tax reference details for the business or individual
- Legal name, trading name and business address in the State
- A specific description of the activity (not “consultancy” but “structural engineering surveys for residential developers”)
- Expected annual turnover and the type of customer you sell to
- Intended date of registration
- Bank account details for repayments
- Details of directors, partners or proprietors
Evidence of trading, or of an intention to trade, typically includes signed customer contracts, issued sales invoices, supplier agreements, purchase invoices for stock or equipment, a lease or licence for premises, a business plan with costed forecasts, evidence of funding, a live website with real pricing, and correspondence with prospective customers.
Expect additional questions where your application involves intra-EU trade, a business effectively managed from outside Ireland, a virtual office or an agent’s address, or no trading history at all. None of those are disqualifying. They just mean the file needs to stand on its own.
Why applications get delayed or refused
- Incomplete forms, or details that contradict each other across documents
- Weak or generic evidence that the business is genuinely making taxable supplies
- No clear connection to Ireland: no Irish customers, no premises, no staff, no local presence
- An address that cannot be verified, or one shared with dozens of unrelated entities
- Turnover forecasts that do not square with the stated activity or resources
- Outstanding issues on other tax registrations, or unfiled returns
- Silence. Failing to answer a Revenue query is the most common self-inflicted delay of the lot
The practical fix is consistency. Make sure the trading name, start date, address and turnover figure say the same thing on the application, the lease, the bank mandate and the business plan. A well-kept set of books from day one makes this painless, which is one of the quieter arguments for outsourced bookkeeping support.
What do I have to do after I receive my VAT number?
The number arrives and the clock starts. Your ongoing obligations are:
- Show your VAT number on compliant sales invoices, along with the date, the customer details, the rate applied and the VAT amount
- Charge the correct rate on taxable supplies
- Keep records and supporting documentation, generally for six years
- File VAT returns for the taxable periods Revenue assigns you, which may be bi-monthly, quarterly, four-monthly, half-yearly or annual
- Pay what is due by the Revenue deadline, and file a nil return where there is nothing to declare
| Rate | Broad category |
|---|---|
| Standard | Most goods and services not otherwise specified |
| Reduced | Items such as fuel, electricity, certain building services and veterinary fees |
| Second reduced | A narrower set including certain tourism-related supplies and publications |
| Zero | Most food, oral medicines, children’s clothing and footwear, books |
Rates and the categories inside them change with most Finance Acts, so check the specific item against Revenue’s VAT rates database rather than relying on memory. This is where publicans and retailers get caught, because a single till can span three rates.
Input VAT is the other half of the picture. You can deduct VAT on purchases used for your taxable business, provided you hold a valid VAT invoice and the cost has a genuine business purpose. Some costs are blocked outright, including most passenger motor vehicles, petrol, food, drink and entertainment. VAT incurred before registration on goods and services still in use by the business can sometimes be recovered, subject to conditions and proper documentation, so keep those pre-registration invoices rather than binning them.
Buying services or certain goods from abroad shifts the burden to you under the reverse charge: you account for the VAT as if you had supplied it to yourself, and reclaim it in the same return where you are entitled to. It is often VAT-neutral, but it still has to appear on the return. Cross-border trade may also bring VIES statements, Intrastat declarations above the relevant thresholds, and OSS filings for consumer sales into other member states.
For the mechanics of filing, our explainer on VAT returns and what goes into them walks through the detail, and our comprehensive VAT guide for Irish businesses covers rates, invoices and compliance in one place.
Frequently asked questions
How long does VAT registration take in Ireland?
A complete, straightforward application commonly takes about two to four weeks, but Revenue gives no guaranteed processing time. Intra-EU applications, intention-to-trade cases and any file where Revenue comes back looking for more evidence will take longer. Responding to queries the same week you receive them is the single biggest thing within your control.
Does it cost anything to get a VAT number?
Revenue charges no fee to register for VAT. What you may pay for is help: an accountant or tax agent preparing and defending the application, and then the ongoing cost of bookkeeping, returns and compliance once you are registered. Those are commercial choices, not a Revenue charge.
Can I backdate my VAT registration?
Sometimes. Revenue may agree an earlier effective date where the facts support it, for instance where the liability to register actually arose months earlier, or where voluntary registration is sought from a date that makes sense. Be careful what you wish for: backdating creates retrospective obligations to account for VAT on supplies already made, file the missing returns and pay any liability, with interest possible. Agree the date with Revenue rather than assuming it.
Is a VAT number the same as a tax number?
No. A tax reference number identifies you or your business to Revenue across all tax heads, including income tax, corporation tax and PAYE. A VAT number confirms that you are registered for VAT specifically, and it is what goes on VAT invoices, VAT returns and EU transactions. The formats often look related, which is why the terms get muddled, but holding a tax reference number does not mean you are VAT registered.
Do I need an intra-EU registration to sell into other EU countries?
If you are acquiring goods from EU suppliers or making supplies to VAT-registered businesses in other member states, yes, you need intra-EU status so your number validates on VIES. Selling to consumers across the EU is a different question, governed by the €10,000 EU-wide threshold and usually handled through OSS.
What should I do next?
Start with the arithmetic. Pull your sales for the last 12 months on a rolling basis, not by accounting year, and compare the total with the threshold that applies to what you sell. Then look past turnover entirely and ask whether any transaction you make, an EU purchase, a service bought from a supplier abroad, a property deal, obliges you to register no matter how small your sales are.
- Gather your evidence: contracts, invoices, lease, supplier agreements, funding, a costed forecast
- Decide between domestic-only and intra-EU status based on what you actually trade today
- Apply through ROS eRegistration using the TR1 or TR2 route, or the correct paper form
- Watch your ROS inbox and reply to any Revenue query within days, not weeks
- Set up your invoicing and bookkeeping so the first return is a non-event
If you are weighing up voluntary registration, thinking about backdating, or trading across borders, those are the cases where an hour with an adviser pays for itself. Our VAT services cover registration, returns and the awkward questions in between, and you can get in touch with the team in Limerick whenever you want a second opinion on where you stand.
The information in this blog is provided for general informational purposes only and does not constitute accounting, tax, business, or legal advice. While Coffey & Co aims to ensure the content is accurate and up to date, no guarantee is given regarding its completeness or suitability for any particular purpose.