By Richie Lennon
Register when your business becomes obliged to do so, or earlier if a voluntary election makes financial sense. The main domestic thresholds are €42,500 for services and €85,000 for goods, with conditions and exceptions. For the domestic small-business exemption, check the previous and current calendar year separately. Registration applies from the sale that takes you over the relevant threshold. Review planned spending and customer prices before that point.
The useful question is not just “have we reached the number?” It is “what changes if we register now rather than later?”
Our practical starting point is the customer and the costs. If customers can recover VAT, the pricing decision may be easier. If they cannot, registration can change what you keep from an unchanged selling price. A stock order, fit-out or equipment purchase can change the calculation again.
Separate compulsory registration from a voluntary election
| Situation | Next step |
|---|---|
| Relevant domestic sales exceed the applicable threshold | Establish the registration date and account for the crossing transaction correctly |
| Below the threshold, with significant qualifying spending ahead | Compare recoverable purchase VAT with the effect on selling prices and administration |
| Below the threshold, selling mainly to consumers at fixed prices | Calculate the amount retained after VAT before electing |
| Buying or selling across borders | Check the specific rule; the domestic sales threshold may not settle it |
| Making exempt supplies | Check the exemption and any separate foreign-purchase obligations |
If you need the distinction between registered, exempt and zero-rated explained first, read what VAT registration means. It owns that explanation; this guide takes you through the timing decision.
Check the right turnover and period
The headline domestic thresholds are €42,500 for services and €85,000 for goods. A mixed business can use the goods threshold only where the relevant conditions are met, including the 90% goods test. Certain manufactured goods have a €42,500 threshold.
Use turnover excluding VAT, not profit. Do not reduce sales by ordinary purchase costs or input VAT to calculate the current domestic turnover threshold.
For an eligible Irish-established business using the domestic small-business exemption, the previous and current calendar year must each remain within the relevant threshold. This is not the old rolling-year wording still found in some guides.
If you exceed the threshold during the current year, registration applies from the transaction that takes you over. There is not a universal 30-day period in which those sales remain exempt. Review the registration position before issuing an invoice that crosses the limit.
The full conditions are in Revenue’s threshold guidance and its domestic SME exemption manual.
Decide what registration does to your price
For business customers, check whether they can recover the VAT on what you supply. Do not assume every VAT-registered customer can. Exempt activities and restrictions can change the answer.
For consumers and customers who cannot recover VAT, compare the total price and what remains for your business.
Assume the supply is subject to 23% VAT:
| Pricing choice after registration | Customer pays | Sales excluding VAT | VAT |
|---|---|---|---|
| Keep the old €100 total price | €100 | €81.30 | €18.70 |
| Keep €100 as the net price and add VAT | €123 | €100 | €23 |
This illustration is a decision about price, not a recommendation to increase every price by 23%. Your actual VAT rate, purchase recovery, costs and customer response need to be included.
If registration becomes compulsory, the business needs a plan for that change. Waiting until the return is due will not change the VAT treatment of the sale.
Review upfront costs before you spend
This is where early registration can be worth considering. A business starting taxable activity may be able to register before it begins making taxable sales and recover qualifying VAT on its setup costs.
Opening stock, equipment and fit-out costs deserve an early review. Advertising or overseas software may involve a reverse charge rather than Irish VAT on the invoice. Some costs have no VAT to recover, and some recovery is restricted.
List the planned costs, identify the VAT treatment and establish what would actually be deductible. Compare that amount with the pricing effect and the ongoing work of registration.
Revenue says a voluntary election cannot be backdated. Its general guidance says an elective registration date cannot be earlier than the beginning of the taxable period in which the application is made. Do not commit major spending on the assumption that an election will later cover any date you choose.
Mandatory registration and Revenue-agreed backdating are separate matters. Ask about the actual effective date if an obligation has already been missed. The registration guidance explains the distinction.
International activity can create an earlier obligation
Check international activity before the first order or invoice, not once fulfilment is running.
| Activity | Why the domestic threshold is not enough |
|---|---|
| Receiving certain taxable services from abroad | A registration and self-accounting obligation can arise without a threshold |
| Relevant EU goods acquisitions by an unregistered or exempt business | A separate €41,000 acquisition test can apply over a continuous 12-month period |
| EU consumer distance sales of goods or relevant digital services | The combined €10,000 test and destination rules have their own conditions |
| Goods held or supplied in another country | Local registration or OSS treatment depends on the sales route |
| A business not established in Ireland | Different rules and exceptions apply; incorporation alone does not settle VAT establishment |
See Revenue’s guidance on received services, EU acquisitions and non-established suppliers.
For ecommerce, our VAT and OSS guide follows the goods through the different sales routes. Do not replace that analysis with “under €85,000, so no VAT”.
Prepare evidence for the application
Registering an Irish company is not the same as demonstrating its VAT position. An address, a company number and a bank account do not explain where the business operates or what it sells.
Before applying, assemble a clear description of the activity, expected sales, customers, suppliers and the way goods or services will be delivered. Keep contracts, invoices and other evidence supporting the application. Revenue may ask for further information.
For an internationally managed business, distinguish Corporation Tax residence from VAT establishment. They are different tests. An Irish registered office is not a substitute for reviewing the actual operations.
Irish-established businesses generally register through ROS, directly or through an authorised agent. Revenue provides separate forms and procedures for businesses that are not established in the State. Use the current registration process for your circumstances.
Do not build a launch date around a guaranteed approval time. A complete, consistent application helps, but requests for evidence and the facts of the business can affect processing.
Agree the process before the first VAT return
Once registered, you need the correct VAT rates and treatment, suitable invoices and purchase records, and a way to track the amount owed. Keep VAT out of the sales figure in your management reporting.
VAT returns are normally bi-monthly, with other frequencies possible where authorised. ROS filing and payment is normally due by the 23rd of the following month. The annual Return of Trading Details is a separate requirement.
Agree who checks the transactions, prepares the return, reviews exceptions and provides for payment. See Revenue’s filing and payment guidance.
There is a decision about accounting basis too. Under Revenue’s rules, the moneys-received basis can be available where turnover is no more than €2 million over the relevant continuous 12-month period or at least 90% of supplies are to customers who are not entitled to full VAT deduction or are not registered. Those are alternative tests, not two conditions every business must meet.
It requires the appropriate application and has exclusions. It changes when relevant sales VAT is accounted for; it does not erase the liability. Check the moneys-received eligibility rules rather than switching the software setting without agreement.
Make the decision part of the cash plan
Put the registration date, price changes, expected recovery and return payments into the forecast. The important result is that the business understands the effect before the cash moves.
Our tax accountant service covers the next step for advice and an agreed scope. For ongoing Irish businesses turning over €250,000 or more, a Finance Fit Call can assess wider accounting and finance support.
FAQs
What is the VAT registration threshold in Ireland?
The main domestic thresholds are €42,500 for services and €85,000 for goods. Mixed supplies, certain manufactured goods and international activity have additional rules. For the domestic small-business exemption, check the previous and current calendar year separately and use turnover excluding VAT.
Should I register before reaching the threshold?
Consider it where you make taxable supplies and qualifying input VAT recovery would outweigh the pricing and administrative effects. Review whether customers can recover VAT, how prices will change and what spending is planned. Below the threshold is not, on its own, a reason either to register or to stay unregistered.
Does registration start at year end after I exceed the threshold?
No. Under the domestic exemption rules, registration applies from the transaction that takes relevant turnover over the threshold. Review approaching sales before that transaction and establish the correct application and invoicing treatment.
Can I backdate voluntary VAT registration?
Revenue says a voluntary election cannot be backdated. Elective registration dates are subject to the current taxable-period rule. General registration can have separate backdating treatment with Revenue’s agreement, so do not confuse a missed mandatory obligation with an elective choice before future spending.
Can I reclaim all the VAT on startup costs?
No. The costs must meet the recovery rules, including their connection with taxable activity, evidence and applicable restrictions. Registration before taxable sales can be possible, but the timing and the actual purchases need review. Do not assume every cost carries recoverable VAT.
Does an Irish company number guarantee an Irish VAT number?
No. Incorporation and VAT registration are separate. The activity, establishment and supporting evidence need to fit the application. Revenue can request further information; an address or bank account alone does not settle the position.
Do foreign purchases matter if my sales are below the threshold?
Yes. Certain taxable services received from abroad have no registration threshold, and EU goods acquisitions can have a separate test. A business making exempt supplies can also have foreign-purchase obligations without gaining a right to reclaim the VAT.
When do I pay VAT after registering?
Returns are normally bi-monthly, and ROS filing and payment is normally due by the 23rd of the following month. Other authorised frequencies and specific arrangements can apply. Agree the return calendar and put the payment in the cash forecast rather than waiting for the filing reminder.
