Sorry if this has already been discussed, but I just came across this piece of dystopian news.
In 2026, if you receive any sum of money (or an object, for example jewelry, a vehicle, art etc.), even if it’s your parents or grandparents sending a gift, and regardless of how it is received (e.g. cash, cheque, bank transfer), you must declare this to the tax office. It’s not to say you will have to pay any tax on it, but if you don’t declare it you could be subject to a tax audit.
Small gifts, given at customary times may be considered a customary gift and not a donation, as long as it’s proportionate to the giver’s income.
It’s recommended to keep a note of each gift (e.g. the accompanying card with the gift), and make a careful note of the reason for giving (if paying by bank transfer etc).
I’ve no idea how strictly all of this will be monitored, but it’s worth being aware about it. My wife and I have started putting careful notes with each payment we send our daughter who’s at boarding school (e.g. payment for school books), just in case. Crazy times we’re living in.