Exempt and zero-rated are not the same thing
Both mean the customer pays no VAT, which is why they get treated as synonyms. For the seller they are opposites: one lets you reclaim the VAT on everything you bought to make the sale, the other does not. On a business with real input costs that is the difference between a refund and a write-off.
A customer cannot tell the difference. In both cases the bill has no VAT on it, and in both cases the price is the price. That is why the two words get used interchangeably — including by people who should know better, and occasionally by software that should be configured better.
For the business making the supply they are not similar at all. One of them keeps you inside the VAT system with a rate of nothing; the other puts you outside it. Everything that follows comes from that.
The distinction in one table
| Zero-rated | Exempt | |
|---|---|---|
| VAT charged to the customer | None — the rate is zero | None — there is no charge at all |
| Is it a taxable supply? | Yes. It is taxable, at a rate of zero | No. It is outside the charge |
| Can the seller reclaim VAT on costs? | Yes, in full | No |
| Does the turnover count toward registration? | Yes | No — a person carrying on only exempt activities may not register |
What that third row is worth
Take a business that spends €10,000.00 before VAT on rent, equipment and professional fees, all standard-rated. The VAT on that spending is €2,300.00.
If its sales are zero-rated— a bookshop, a children’s clothing retailer, an exporter — it is making taxable supplies. It charges its customers nothing, reclaims the €2,300.00 in full, and is in a permanent repayment position with Revenue.
If its sales are exempt, it is not making taxable supplies. There is nothing to set the €2,300.00 against, so it is simply a cost. On a business with heavy input spending, that is the difference between a refund cheque and a line in the accounts.
Which is why “we don’t charge VAT” is not a description of a VAT position. It is a description of what appears on the invoice, and the two situations it covers are opposite.
How to tell which you are
Zero-rating is a rate, and rates are set by section 46 of the Value-Added Tax Consolidation Act 2010 by reference to Schedule 2. Exemption is a different mechanism entirely — it lives in Schedule 1 and it operates by taking a supply out of the charge rather than by pricing it at nothing. If the thing you sell appears in a list of zero-rated goods and services, you are zero-rated. If it does not appear at any rate, exemption is the question to ask.
Revenue puts the same point in one sentence on its registration page: a person carrying out only exempt activities or non-taxable activities may not register for VAT — though such a person may still have to register in specific situations, such as acquiring goods from other Member States or receiving services from abroad.
The one that is neither
There is a third state people fold into these two and should not: being below the registration threshold. An unregistered trader charges no VAT and reclaims none, which looks exactly like exemption from the outside — but the supplies themselves are taxable, the turnover counts, and crossing the threshold changes everything overnight. Exemption is a property of what you sell. Registration is a property of how much of it you sell.