Euro banknotes which are damaged or mutilated (e.g. partially burnt, cut or decomposed) and which fulfil certain criteria are replaced by the national central banks of the euro area. For example, a national central bank will replace a damaged euro banknote if you present more than half of the note or can prove that the missing (larger) part of the banknote has been destroyed. Intentionally mutilated or damaged euro banknotes are not redeemed.
In principle, the redemption is free of charge. A fee is charged for euro banknotes which have accidentally been damaged by anti-theft devices.
For details, see:
For the postal address of your national central bank, please see its website.