The honest timeline
The AKC’s Chief Veterinary Officer, Dr Jerry Klein, puts it this way: if training starts early, a six-month-old puppy can usually be trusted most of the time to go outside. “Most of the time” is doing real work in that sentence. The ASPCA is blunter: “House training is not an exact science — there’s no sure-fire formula or timetable that will work for every dog.”
About “age in months, plus one hour”
You’ll see this everywhere as the longest a puppy can hold on. It’s widely repeated, but not tied to any study or veterinary body. Treat it as a loose rule of thumb and let your own puppy’s signals lead.
The signs your puppy needs to go
Sniffing, circling and walking with stiff back legs are the classic tells. That’s your cue to move, straight away, to the toilet spot. Steady supervision catches these moments; telling off after the fact does not. The ASPCA is clear that no dog should ever have their face rubbed in an accident: it teaches nothing except that you’re unpredictable.
A simple routine
- Out first thing on waking, and within minutes of any meal
- Out after naps and after lively play
- Same door, same spot outside, every time, early on
- Big, genuine praise the moment they go in the right place, not after you’re back inside
The crate helps here too: most puppies don’t like to soil where they sleep, which is why a properly sized crate with good associations is a house-training tool, not just a bed.
When it seems to go backwards
A puppy who was doing well and suddenly has repeated accidents isn’t being difficult: something changed. Common reasons are a growth spurt, a change in routine (a new schedule, travel, a change at home) or simply too much freedom too soon. If accidents restart suddenly, it’s worth a word with your vet. Then go back to basics: closer supervision, more trips out, the same door and spot.
“If accidents keep happening in one spot indoors, that spot is probably marked with a scent your nose can’t detect but your puppy’s absolutely can. An enzymatic cleaner made for pet accidents breaks the scent down instead of masking it.”— Professor Mochi