Puppy house training: the step-by-step plan that is actually realistic

How long does it take to house train a puppy?

Most puppies are fully house trained by around six months, according to the veterinary group VCA Animal Hospitals. At about four months they should be starting to ask to go outside. If there is still no progress between four and six months, that same source treats it as the point to call your vet.

House trained is not the same as grown up, though. The RSPCA points out that a dog only has an adult's full bladder capacity at around twelve months. And VCA advises giving your puppy more freedom indoors only after eight to twelve consecutive weeks without a single mistake.

So the pages promising a house-trained puppy in seven days are describing something else. A week builds a routine. Bladder control, and the ability to tell you they need to go, take months.

Do the arithmetic on that top row and you can see why a puppy cannot be left for a working day. An eight-week-old pup left alone at half past eight needs to be outside again before half past nine. What that means if you work full days is covered in how long a dog can stay home alone.

What is the step-by-step plan for house training a puppy?

House training is about prevention. Arrange life so that almost nothing goes wrong indoors: fixed trips outside, constant supervision, and every success outside rewarded on the spot. AVSAB names house training specifically as something you solve by managing the environment and reinforcing what you want.

1. 1Go out at fixed moments. The LICG treats two-hourly as the absolute minimum, plus always after sleeping, eating, drinking and play. With an eight-week-old puppy, in practice that is closer to every 45 minutes.
2. 2Learn the run-up. Puppies sniff the floor pointedly, circle, wander away from their bed or go suddenly restless. Once you see it you have seconds.
3. 3Go outside with them, every single time. Send a puppy into the garden alone and you will not know whether anything happened, so you cannot reward the moment.
4. 4Pick one fixed spot and take the same route there each time. The surface and the smell become part of the cue.
5. 5Wait quietly. No talking, no playing, no encouragement. Stand there being boring for a few minutes until it happens.
6. 6Only then add a cue word. VCA advises waiting until your puppy is already in position and just beginning, then calmly saying a set word such as 'go potty'. Say it any earlier and it simply distracts.
7. 7Reward straight away, outside. A calm voice, a stroke or a treat, right at the spot. VCA is explicit about this: reward while you are still outside near the spot, not once you are back indoors. The RSPCA advises rewarding every time while training is under way.
8. 8Then stay out a little longer. If you always head straight back in the moment your puppy finishes, they learn that weeing ends the outing, and start holding on.
9. 9Supervise indoors. A puppy you cannot see belongs behind a closed door, in a crate, or on a lead beside you. Every accident you prevent is one you never have to untrain.

About that crate

A crate only works if your puppy genuinely likes it: big enough to stand, turn around and lie stretched out, door open at first, food served inside, and never used as a punishment. VCA caps crate time for a puppy at no more than three hours. A puppy who is shut in and panicking will not hold on; a closed-off kitchen is the better choice then.

And what about pooing?

Pooing follows the food. Both the LICG and VCA name the period shortly after a meal as a fixed moment. Fixed feeding times therefore give fixed pooing times, which usually makes this half of house training easier than the weeing.

• Feed at set times and go out shortly after the meal. Note in your week's log how many minutes it takes with your own puppy — it varies from dog to dog.
• Do not change food mid-way through house training. With loose stools your puppy simply cannot hold on, however good the routine is. If the diarrhoea persists or there is blood in it, call your vet: a young, incompletely vaccinated puppy dehydrates fast, and that is not a training problem.
• Carry poo bags from the very first walk, even if you are only going to the patch of grass round the corner.

How do you handle the nights?

For the first weeks put the bed or crate next to yours, so you hear your puppy getting restless. If they signal, take them out briskly and bring them straight back. No lights, no games, no conversation: the duller you make it, the sooner you sleep whole nights again.

1. 1Let your puppy go one last time right before bed, after a short quiet trip round the garden or the street.
2. 2Leave the water bowl where it is, but stop the rough play and the big drinks just before bedtime.
3. 3For the first nights, set an alarm half an hour before the time your puppy usually wakes, so you get there first.
4. 4Move that alarm fifteen minutes later every three or four nights, as long as no accidents appear.
5. 5If it goes wrong, move the alarm half an hour earlier again and build up more slowly.

VCA expects night trips until about five months. If your puppy is still waking every night with a full bladder after that, practising harder will not help — that is a reason to talk to your vet.

What do you do about an accident indoors?

Say nothing, clean it up, and work out what you missed. The LICG is blunt about it: punishment is pointless, because your puppy cannot make sense of it. VCA adds that punishing a puppy for a natural act can make them think they should never toilet near a person.

• Caught them mid-act? Interrupt gently — a quiet sound, nothing that startles them — and walk straight outside. Reward whatever happens there.
• Found it later? Clean it up without comment. The RSPCA warns that shouting teaches a dog it is only safe to go when you are not watching.
• Clean properly. The RSPCA recommends a warm solution of biological washing powder, one part powder to nine parts water, rinsed afterwards. Biological here means enzyme-containing, which matters outside the UK: Dutch 'biologisch' or eco powders are often enzyme-free, and an enzymatic cleaner from the pet shop does the same job. Avoid ammonia-based cleaners: to a dog they smell like urine and draw them back to the same spot.
• Rewind through the day. How long since the last trip out? Was there a visitor, a game, a long nap? The answer is usually thirty minutes earlier in the day.

How do you house train a puppy without a garden?

It works perfectly well, but it needs more planning. With no garden, every toilet trip is a real outing: coat on, lead on, down the stairs. So keep a bag ready by the door, pick one fixed spot close to home, and assume the first weeks will be hard work.

• Park a bag at the front door with poo bags, a towel and some treats. Every second spent hunting for something is a second an accident happens behind you.
• Carry a small puppy down the stairs. That prevents an accident on the third floor.
• Choose a spot close to home that is not too busy. A puppy startled by a cargo bike or a bin lorry holds it in and wees indoors five minutes later.
• Pick the surface you want them using long term, straight away. Grass or sand suits most puppies better than paving, and that preference often sticks for years.
• Go carefully with puppy pads. A pad teaches your puppy that indoors is sometimes fine. If you live high up without a lift they can help in the first weeks; phase them out deliberately once the outdoor trips are running.

Living in Wassenaar adds two local rules from day one. The municipality's dog policy states that dog waste must always be cleared up and that you must carry a clean-up tool with you, including in the twelve off-leash areas. And inside the built-up area every dog must be on a lead, except in those designated off-leash areas — including a nine-week-old puppy who is not going anywhere.

Where you can walk off-leash around Wassenaar, and what the seasonal rules are there, is set out in our guide Off-Leash Dog Areas in Wassenaar.

When is it no longer a training problem?

Weeing indoors always looks the same, but six different things sit behind it, and only one of them is solved by training. A veterinary behaviourist puts medical causes at the top of the list for puppies who fail to progress despite a good routine, and for trained dogs who suddenly start again.

There is one more reason not to let this drift. A 2024 analysis in the journal Animal Welfare, within the British Generation Pup study, looked at data from 145 dogs. Those still having four or more accidents a week at sixteen weeks showed separation-related behaviour at six months more often than dogs with zero to three. The researchers call this an exploratory result and an association rather than a proven cause — the early accidents may themselves already have been part of the alone-time problem. Reason enough to raise persistent accidents with your vet in good time.

For more on the first months, read puppy socialisation and the first 30 days with a new dog. Every article on young dogs sits together under Puppies.

Frequently asked questions about house training a puppy