In some jobs you get a 3-4% vacation pay monthly in lieu of actually getting vacation time such as for part time workers. I am thinking that is what you are meaning but sadly that doesn't really apply to us unless you specifically put it in your contract. No idea how to word it to have it legally covered. I know the idea has been mentioned in a few other threads but as a parent I would not feel obligated to pay you anything extra other than the agreed upon number of weeks notice period which would include any amount I had already paid as a deposit towards this notice period.