ECB rate
aka ECB reference rate, European Central Bank exchange rate, euro reference rate
Daily mid-market euro exchange rates published by the European Central Bank at 16:00 CET. The benchmark used by fintechs like Wise to price FX conversions and by Irish businesses to verify how much their bank marks up currency conversions.
Last reviewed May 2026
Definition
The European Central Bank publishes euro foreign exchange reference rates for approximately 30 currencies every TARGET business day at around 16:00 Central European Time. The rates are computed from daily concertation procedures between central banks and are the official mid-market benchmark for the euro - the midpoint between what the market pays to buy and sell a currency at that moment. The ECB rate is not a price at which any individual can transact directly; it is a reference point published by a regulatory body. Banks, electronic money institutions, and fintech platforms all transact at their own commercial rates, which include a markup (FX margin) above or below the ECB mid-market rate. For Irish businesses, the ECB rate matters in three practical contexts: 1. Benchmarking FX costs: Platforms like Wise publish conversion rates as a percentage above the ECB mid-market rate on the day of the transaction (typically 0.4 to 1 percent). This allows an Irish business to directly compare the real FX cost on any conversion. A traditional bank that quotes a rate without publishing its markup can be assessed against the same ECB benchmark. 2. Contract and invoice currency clauses: Irish export contracts sometimes reference the ECB rate for currency adjustment clauses - for example, an invoice agreed at ECB rate plus 1 percent at time of issue, with a specified adjustment window if the rate moves more than 3 percent before payment. 3. VAT on foreign currency invoices: Revenue requires Irish VAT-registered businesses to convert foreign currency invoices to EUR for VAT purposes using either the ECB rate on the date of supply or the rate used by the bank. The choice must be consistently applied and documented. The ECB rate is updated once per business day and covers major pairs (EUR/USD, EUR/GBP, EUR/CHF, EUR/JPY) and a range of emerging market currencies. Intraday rate movements between the 16:00 fix and the time of an actual business transaction can cause the executed rate to differ from the published ECB reference rate even on the same calendar day.
Why it matters for software choice
Irish businesses that benchmark their FX costs against the ECB rate can quantify precisely how much their bank or payment platform is charging for currency conversion. Platforms like Wise that explicitly quote the ECB mid-market rate and publish their fee as a transparent percentage are directly comparable; banks that quote a composite rate without disclosing the markup are not.
Authority sources
- European Central Bank: Euro foreign exchange reference rates (www.ecb.europa.eu)
- Revenue: Foreign currency - VAT (www.revenue.ie)
Software categories this affects
Vendors covered by this term
Revolut Business
EU-licensed business banking with Irish IBANs, SEPA Instant, and multi-currency accounts
Wise Business
Multi-currency business account with mid-market FX rates and EU IBAN for Irish SMEs
Related terms
FX margin
The markup a bank or fintech platform charges above the interbank mid-market exchange rate when converting currencies. A 2% FX margin on a USD 10,000 payment costs the Irish business EUR 200 compared to converting at the mid-market rate.
Multi-currency account
A business account that holds balances in multiple currencies simultaneously, allowing Irish SMEs to receive, hold, and pay in USD, GBP, EUR and other currencies without converting each time.
SEPA Credit Transfer
Standard EUR-denominated bulk payment scheme used to pay suppliers, salaries and Revenue liabilities from Irish business bank accounts. Settlement within one business day across SEPA.