Store thermal paper cool, dry and out of direct sunlight, preferably in its original packaging. How legible a print stays depends on the paper quality, the print quality and the storage conditions. For certain paper qualities the expected legibility can be 5 to 25 years, provided you follow the prescribed storage conditions. Heat, moisture and light can make the print fade faster. Ask us about the specifications of your paper quality. For important receipts you want to keep for a long time, also make a digital copy.