With yorkies you can never tell.There is no age where they suddenly start going potty where they are supposed to..I wish there was! lol.I have 2 yorkies,one is a year old and has done wonderfully in the training area..she uses her pads religiously and never has accidents.My other baby is 17months old and just awful

: She goes when and where she likes and although we have tried everything,nothing has worked as of yet.Sometimes you will get lucky and have your baby house trained before six months,but other times it will take forever.Yorkies are also known to have bad days..which means your baby can go for months wthout having an accident then one day pee all over the place..lol.All I can recomend is LOTS of patients

GOOD LUCK!