My long time families do sort of get a discount when they come off mat leave but they have to earn it. IF the older child stays in care full time while they are off then when the second one starts that child starts at the same rate as the older sibling and since I don't raise rates for families in care it can be $1-2 less than the new rate. IF the child goes part time then the old child stays at the lower rate and the new child comes in at that current rate so in a sense it is still a sibling discount as the price for one is lower than the other but this only works for families already in care. If a family of two came to fill two open spaces they would pay for two full time spaces unless I really really liked them, they came to me as friends of a family in care or I was somewhat desparate and got the sense it was the only way I would get them I might give the same $1-2 a day that a current family would get.