Banknote guide
Pick a currency and see how its central bank says to check a note, what it says about older notes, and the page we read it on. No pictures of notes here: the official pages carry them.
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The notes
Choose a currency above to see how its central bank says to check a note.
Read off each central bank's own pages on 2026-10-25; designs and rules change, so check the page before you rely on it. A tool cannot tell you a note is genuine: if one looks wrong, hand it back and pay another way. This is a summary, not legal advice.