VAT trips up more business owners than almost any other tax. The rules feel fiddly, the deadlines are unforgiving, and one wrong entry on a return can leave you either underpaying Revenue or losing money you were entitled to reclaim. The good news is that accounting for VAT comes down to a handful of repeatable steps once you understand what you are actually doing. This guide walks you through the whole cycle, from registration to the VAT3 return to getting a refund processed without delay.
VAT is Value-Added Tax, a consumption tax charged on most goods and services in Ireland. As a registered business, you collect it on behalf of the Revenue Commissioners, and you reclaim the VAT you pay on your own costs. The difference is what you hand over, or what comes back to you.
What does accounting for VAT actually mean?
When people talk about how to account for VAT, they mean the process of recording two opposite flows of tax and settling the balance with Revenue. Every VAT-registered business in Ireland does the same thing in principle, whether you sell coffee or software.
The first flow is output VAT. This is the VAT you charge on your sales. When you charge VAT to a customer, that money is never really yours; you are holding it for Revenue. The second flow is input VAT, the VAT you pay on business purchases. Most of that input VAT is deductible, meaning you can reclaim it.
Your net VAT position is simply output VAT minus input VAT. If you collected more than you paid, you owe the difference. If you paid more than you collected, you are in a refund position and Revenue owes you. That single calculation sits at the heart of every VAT return.
Timing matters too. VAT becomes due at the "tax point", usually the invoice date, not the date you get paid. Understanding VAT timing is what keeps your cashflow healthy, because you can end up owing VAT on a sale before the customer has actually settled the invoice.
Do you need to register for VAT first?
You cannot charge VAT, reclaim VAT, or file a VAT return until you are registered for VAT. Registration is obligatory once your turnover passes the relevant VAT threshold, and it is optional below that.
The current registration thresholds, confirmed by Revenue, are €85,000 for businesses supplying goods and €42,500 for businesses supplying services, measured over any rolling 12-month period. There is a separate €41,000 threshold for intra-Community acquisitions of goods from other EU member states. If you cross the line, or expect to, you must register.
You can also choose to register voluntarily before you reach the threshold. Many business owners do this so they can reclaim VAT on start-up costs and equipment, or because their customers are themselves VAT-registered and expect a proper VAT invoice. The trade-off is that you then have to charge VAT on your sales, which can make you less competitive if you sell to consumers.
Failing to register when you are required to causes real problems: you cannot reclaim input VAT, your invoicing is incorrect, and Revenue can pursue back VAT plus interest and penalties. If you register late, you may still owe the VAT you should have charged from the date you crossed the threshold.
What are the current VAT rates in Ireland?
Ireland uses several VAT rates, and applying the right one to each sale is the first place errors creep in. You charge VAT at the rate that applies to the specific goods or services you supply, then record sales by rate so your return adds up correctly.
|
VAT rate |
Percentage |
Typical examples |
|
Standard rate |
23% |
Most goods and services, including professional services, electronics and adult clothing |
|
Reduced rate |
13.5% |
Building services, fuel for heating, vet fees, short-term car hire |
|
Second reduced rate |
9% |
Gas and electricity; food, catering and hairdressing from 1 July 2026 |
|
Livestock rate |
4.8% |
Livestock, greyhounds and the hire of horses |
|
Zero rate |
0% |
Most food, children's clothing and footwear, books, exports |
These figures are taken from Revenue's published current VAT rates. Note one important distinction. Zero-rated supplies are still taxable, just at 0%, so you can still reclaim input VAT on related costs. Exempt supplies, such as certain financial, medical and educational services, are outside the VAT net entirely, which means you charge no VAT and cannot reclaim the VAT on costs linked to them. Mixing these up is one of the most common and costly VAT mistakes.
How do you calculate output VAT and input VAT?
Each VAT period, you build your return from two totals. Get the bookkeeping right and the return almost fills itself in.
Output VAT is the total VAT you have charged on your sales invoices during the period, broken down by rate. If you raised €10,000 of standard-rated sales, you charged €2,300 of output VAT. That is the amount of VAT you must pay over, regardless of whether every customer has paid you yet (unless you use the cash basis, covered below).
Input VAT is the VAT you have paid on business purchases, again totalled from your supplier invoices. You can only reclaim input VAT where you hold a valid VAT invoice and the cost relates to your taxable business activity.
Some input VAT is never deductible, no matter how valid the invoice. The main non-deductible areas to watch are:
- Business entertainment, such as client meals and hospitality
- Most passenger cars, plus petrol for company vehicles (diesel is treated differently and is partly reclaimable in some cases)
- Goods and services bought for personal or private use
- Costs relating to VAT-exempt activities
If your business makes both taxable and exempt supplies, you are partly exempt and can only reclaim a proportion of your input VAT. Working out that proportion correctly is fiddly, and it is an area where an experienced accountant earns their fee quickly.
Invoice basis or cash basis: which suits you?
Ireland lets eligible businesses account for VAT in one of two ways, and the choice affects your cashflow directly.
On the invoice basis, you account for output VAT when you issue an invoice, even if the customer has not paid. This is the default and the only option for larger businesses.
On the cash basis, also called the moneys-received basis, you account for output VAT only when your customer actually pays you. This is far kinder to cashflow because you are never paying VAT on money you have not collected. You can generally apply to use the cash basis if your annual turnover is under the qualifying limit or if most of your sales are to unregistered customers. Input VAT is reclaimed when you pay your suppliers under this method.
How do you account for cross-border VAT?
Buying and selling across borders changes how VAT works, and this is where self-accounting comes in. The principle is that you account for the VAT yourself rather than the supplier charging it.
For goods bought from another EU member state, you make an intra-Community acquisition. The supplier issues a VAT-free invoice once you give them your VAT registration number, and you self-account for Irish VAT on the purchase. You record acquisition VAT as output VAT and, where the cost is deductible, reclaim the same amount as input VAT. In many cases the two cancel out, but you must still report both figures.
For goods imported from outside the EU, including Great Britain post-Brexit, import VAT applies at the point the goods enter Ireland. Many businesses use postponed accounting, which lets you account for import VAT on your VAT3 return rather than paying it upfront at customs, again recording it on both the output and input sides. You need the customs import documentation to support any reclaim.
For services bought from abroad on a business-to-business basis, the reverse charge usually applies. Under reverse charge, the supplier does not charge VAT; instead you account for VAT as if you had supplied the service to yourself, posting output VAT and reclaiming input VAT where deductible. The same reverse charge mechanism also applies domestically to certain construction services under the relevant contract rules.
A quick example of self-accounting
Say an Irish business buys €1,000 of standard-rated goods from a German supplier. The supplier invoices €1,000 with no VAT. You apply the Irish standard rate of 23% and post €230 as output VAT (acquisition VAT) and, assuming the cost is fully deductible, €230 as input VAT. The net effect on your VAT liability is zero, but both entries must appear on your VAT3. Leave them off and your return is wrong, even though the bottom line looks the same.
How do you complete and file your VAT3 return?
The VAT3 return is where your bookkeeping turns into a filing. Most businesses file every two months, although Revenue may assign a less frequent period depending on your turnover and VAT history.
You file and pay through ROS, the Revenue Online Service. The figures you need map directly onto your VAT records:
- T1: total output VAT, your VAT on sales for the period
- T2: total input VAT, the VAT you are reclaiming on purchases
- T3 or T4: the net VAT payable or repayable, being T1 minus T2
- E1, E2, ES1 and ES2: the value of intra-EU goods and services bought and sold
Before you submit, reconcile your VAT control account against your sales and purchase ledgers. The figures should tie out exactly. A clean reconciliation is your best defence if Revenue ever queries the return.
Once a year you also file a Return of Trading Details, the RTD, which summarises your sales and purchases by VAT rate across the whole year. It carries no payment, but Revenue uses it as a cross-check against your VAT3 returns, so the totals need to be consistent. Filing it late, or not at all, can hold up tax clearance and refunds.
|
Obligation |
What it covers |
Typical frequency |
|
VAT3 return |
Output VAT, input VAT and the net amount due or repayable |
Every 2 months (bi-monthly) |
|
Return of Trading Details (RTD) |
Annual summary of sales and purchases by VAT rate |
Once a year |
|
VAT payment |
Settlement of any net VAT liability via ROS |
With each VAT3 return |
Filing your VAT return late, or paying late, can lead to penalties and interest, so getting the dates into your calendar is not optional. Revenue's online service shows your filing schedule once you are set up.
What records do you need to keep?
Solid records are what make every other part of VAT manageable. They prove your figures, support your reclaims, and keep you audit-ready. Under Irish VAT regulations you generally need to retain your VAT books and supporting documents for six years.
The core records to keep are:
- Sales invoices and credit notes you have issued, showing your VAT number and the VAT charged
- Supplier invoices for every purchase on which you reclaim VAT
- Import and customs documentation for goods brought in from outside the EU
- Evidence supporting any zero-rated or exempt sales
That receipt for a new laptop or the invoice for diesel for the van is not just paperwork; it is the proof that lets you reclaim the VAT. Cloud accounting software makes this far easier, capturing invoices, tagging the correct VAT rate, and producing the VAT figures you feed into your return. A tidy accounting system turns VAT from a quarterly scramble into a few minutes of review.
How do VAT refunds work in Ireland?
A VAT refund arises whenever your input VAT exceeds your output VAT for a period. Instead of paying Revenue, you claim the difference back. This is genuinely common and not a sign that anything is wrong.
Typical reasons you end up in a refund position include heavy start-up or capital spending, exporting or making zero-rated sales (where you charge no output VAT but still reclaim input VAT), or simple timing differences between when you buy stock and when you sell it.
You claim the refund through your VAT3 return; there is no separate form. In your accounts, the amount sits as VAT receivable rather than VAT payable, and you clear it down when Revenue pays the refund into your bank account. Revenue may query larger or first-time refund claims before releasing them, which is normal.
To reduce refund delays, keep your documentation clean, treat imports, EU acquisitions and reverse charge consistently from period to period, and respond promptly to any Revenue query. The businesses that get refunds fast are the ones whose records make the claim easy to verify.
Where Kinore comes in
VAT is one of those areas where small errors compound quietly until an audit or a missed reclaim brings them to light. Getting your VAT accounting right protects both your cashflow and your peace of mind, and it keeps your VAT liabilities accurate period after period.
Kinore is a digital-first accountancy firm built around senior-led, dedicated client managers, not a one-person practice juggling everything. We handle VAT registration, VAT3 and RTD filing, reconciliations, and the trickier areas like EU acquisitions, import VAT and reverse charge entries, all backed by proper review. If you are unsure whether your returns are right, or you suspect you are leaving refunds on the table, that is exactly the kind of thing we sort out every day.
Before we talk, it helps to have your last VAT3, your sales and purchase VAT reports, and any import documents to hand. To take VAT off your to-do list for good, get in touch with the Kinore team for a conversation about your VAT obligations.
Frequently asked questions about accounting for VAT
How do I account for VAT if my customer never pays the invoice?
On the invoice basis you will already have accounted for the output VAT when you raised the invoice. If the debt becomes genuinely irrecoverable, you may be able to claim VAT bad debt relief, provided you can show you took reasonable steps to recover the money and you adjust the records correctly. On the cash basis the issue rarely arises, because you only account for the VAT once the customer pays.
Can I reclaim VAT on every business expense?
No. You can reclaim input VAT only where you hold a valid VAT invoice and the cost relates to your taxable business activity. Certain costs are specifically non-deductible, including business entertainment, most passenger cars and anything for private use. If your business makes both taxable and exempt sales, you can reclaim only a proportion of your input VAT.
What is the difference between reverse charge and self-accounting?
They are closely related. Both mean you account for the VAT yourself rather than the supplier charging it. Reverse charge typically applies to services bought from abroad and to some Irish construction services, while self-accounting on an intra-Community acquisition applies to goods bought from other EU member states. In both cases you record output VAT and usually reclaim the same amount as input VAT, and you must report the entries even when they net to zero.
How long do I need to keep my VAT invoices and records?
You generally need to keep your VAT records, invoices and supporting documents for six years. Revenue can ask to see them during that period, so storing them in cloud accounting software, where they are searchable and backed up, saves a lot of stress later.
Why does my VAT return show no net VAT due on an EU purchase?
Because self-accounting on an EU acquisition usually creates equal and opposite entries. You post acquisition VAT as output VAT and reclaim the same amount as input VAT where the cost is deductible, so they cancel out. The net liability is zero, but both figures must still appear on your VAT3, since the return reports the activity, not just the balance.
The information provided in this article is for general guidance and informational purposes only. It does not constitute professional accounting, tax, or financial advice, and should not be relied upon as a substitute for advice tailored to your specific circumstances. While we take care to ensure the content is accurate and up to date at the time of publication, legislation, tax rates, thresholds, and compliance requirements in Ireland can change.
