Not capitalised; add an "s" when plural. In most texts, use the ISO symbol EUR after the figure, separated by a non-breaking space e.g. 25 EUR (add lower case "k" for thousands, e.g. 25 kEUR, upper case "M" or "B" for millions of billions e.g. 25 MEUR).

In more informal texts such as Bulletin articles, the symbol € can be used instead (before the figure, no space, e.g. €25).