I don't have a particularly good source for this, but I've seen this reported by major YouTubers: the advertising revenue split on YouTube is 45/55. YouTube kee

I don't have a particularly good source for this, but I've seen this reported by major YouTubers: the advertising revenue split on YouTube is 45/55. YouTube keeps 45%, the creator gets 55%. So if the creator gets $1, YouTube keeps about $0.80.