According to tradition, Christmas decorations should be taken down before the end of the 12 days of Christmas, which is January 5th. This is to avoid the bad luck and misfortune that could come from keeping them up past this date. However, there are no strict rules on when to remove the decorations, and many people choose to keep them up until after New Year's Day. Ultimately, it's up to the individual or family to decide when they feel it's appropriate to take down their Christmas decorations.