It typically takes 4-6 months for a puppy to be fully house trained, but some puppies may take up to a year. Size can be a predictor. For instance, smaller breeds have smaller bladders and higher metabolisms and require more frequent trips outside. Your puppy's previous living conditions are another predictor. You may find that you need to help your puppy break old habits in order to establish more desirable ones.
I have a 3 year old cockapoo who will let me know when she has to poop but still need off the paper when she pees. Had my niece come during the summer with her 5 month old pit huskey mix who was sweet and house trained but overwhelming to my dog. Since then she tends to pee everywhere. I do keep papers down still but she will pee on paper but walk off still peeing. How do I get this to stop. She’s 3.
The process is the exactly same for older dogs as it is for puppies; prevent accidents from happening by using baby gates and a crate if possible, create a predictable schedule, learn to recognize your dog’s potty signals, accompany your dog outside and immediately reward for all outdoor elimination, properly clean any accidents and supervise your dog until you’re sure that he understands the rules.