How to Keep Your Dog Out of the Litter Box
Short answer: The surest way to keep your dog out of the litter box is to block access in a way your cat can still get past: a raised gate or a gate with a cat door, a door latch, or a raised box. Scoop daily so there is less to find.
Then teach "leave it" and "come away" with rewards, so the habit fades while the barrier does the work.
This guide covers why dogs raid the box, the right fix for your household, a training plan, and what to do after a raid.
Why Dogs Go in the Litter Box
Dogs go in the litter box because cat poop smells like food to them. The American Kennel Club explains that eating it is "totally natural, since dogs are scavengers by nature", and that cat poop likely smells like cat food to a dog.
The AKC adds that a dietary deficiency can be a cause, but the habit is usually canine exploration that turns into a routine. Eating poop is called coprophagia, and our guide to why dogs eat poop, and fixes covers the dog's own poop and the yard.
If you are wondering how to keep the dog out of the cat box for good, the answer has two parts: management that makes the box unreachable, and training that makes your dog's choice easier. Our force-free manners classes in Crystal Lake teach formal obedience cues and household manners that support both.
Is the Litter Box Dangerous for Dogs?
Yes, there is some risk. The AKC says that "eating any poop carries the potential for the dog to contract harmful bacteria and parasites," including bacteria such as salmonella that can pass to people. Dogs can also pick up several species of internal parasites from cat poop.
Cat litter is a smaller worry for most dogs. According to the AKC, "most dogs would have to eat a lot of litter before it could cause a blockage."
There is also a family health angle. The CDC advises you to change the cat litter box daily, because the toxoplasmosis parasite does not become infectious until 1 to 5 days after a cat sheds it. Daily scooping protects your household and leaves your dog less to find.
Children should always be supervised around both pets and kept away from the box. If anyone in your home is at higher risk for toxoplasmosis, the CDC says to talk to your healthcare provider. Our post on dog training the whole family shares covers house rules for everyone.
Management First: 6 Fixes That Block the Dog, Not the Cat
Management comes first because a dog that keeps getting a "snack" keeps practicing the habit. Veterinary behaviorists at VCA Animal Hospitals write that coprophagia "can best be corrected by preventing access to stools."
Raised baby gate: mount it a few inches off the floor so a small cat slips under and a big dog cannot.
Gate with a cat door: a built-in small door lets the cat through and stops a larger dog.
Door latch: a hook-and-eye or door holder keeps the door open just wide enough for the cat.
Cat door: fit one in the door of the litter room, sized for your cat, not your dog.
Covered or raised box: a lid, or a box on a sturdy surface, helps when your cat accepts it.
Scoop daily: less waste in the box means less reward for your dog.
The AKC agrees that "dog gates are great at keeping dogs out without getting in your cat's way." Any barrier that relies on size fails if your dog is as small as your cat.
Pick Your Fix by Household
The best fix depends on your dog's size and your cats' age and number. The table rates how well each setup stops the dog and how readily a cat accepts it; the ratings are our guidance, not test results.
Household | Best fixes | Stops the dog | Cat acceptance | Watch out for |
Big dog, any cat | Raised gate, gate with a cat door, door latch | High | High | A dog that jumps or pushes the gate |
Small or cat-sized dog | Cat door, raised box on a sturdy surface | Medium to high | Medium | Gates and latches fail if the dog fits through |
Older or arthritic cat | Gate with a cat door, low-sided box behind it | High | High | Avoid raised or top-entry boxes the cat must climb |
Multi-cat home | Gated litter room plus extra boxes inside it | High | Medium to high | One blocked doorway can turn into a cat traffic jam |
For small dogs, Hill's Pet Nutrition suggests that keeping them out "might be as simple as elevating the litter box out of reach, or placing it inside a bathtub." For an older cat, International Cat Care says cats with arthritis or reduced mobility benefit from trays with lower sides for easy access.
In a multi-cat home, International Cat Care recommends one litter tray per cat, plus at least one extra.
Top-Entry and Covered Boxes: Will Your Cat Use One?
Some cats will use a top-entry or covered box, and some will not. The AKC lists covered and top-entry "dog-proof" boxes as ways to make access harder. Hill's adds a condition: a covered box "might work if your cat will tolerate a lid."
The cat's view matters here. International Cat Care explains that some cats "feel vulnerable when confined in a small space with only one available exit point", and that a flap on a covered tray can deter use. A top-entry box has one exit and asks the cat to climb.
Our take: try one only with a young, agile, confident cat, and keep the old box nearby for the first weeks. If your cat goes outside the box, switch back to a gate. For seniors, skip it.
The Cat's Side: Make the New Setup Easy for Your Cat
Your cat has to like the new setup too. Hill's puts it simply: "be sure to keep your kitty's preferences in mind." A cat that feels blocked or hassled near the box may start going elsewhere.
Introduce new gates slowly. Prop a new gate or cat door open for a few days and toss treats through it before you close it.
Move the box gradually. Hill's advises relocating a litter box in small increments, and changing litter gradually too.
Keep the tray away from the cat flap. International Cat Care notes that cats are often reluctant to use trays near cat flaps or full-length glass windows.
Pick a quiet spot. The tray should sit somewhere quiet, away from food and water and busy areas of the home.
Give the cat an escape route. Make sure your dog cannot wait outside the only exit.
A Force-Free Training Plan to Keep Your Dog Away From the Box
Training works on top of management: the barrier stops the snack, and rewards teach your dog what to do instead. The AKC's advice for poop eating is to "work hard on the training cues 'leave it' and 'come.'" Keep sessions to a few minutes.
Step 1: Block access (easy)
Set up one of the six fixes before you start training.
Step 2: Leave it (medium)
Hold a treat on the floor under your hand and let your dog sniff. The moment your dog backs off, say "yes" and reward from your other hand. Practice in many rooms before you ever try it near the litter area.
Step 3: Come away (easy)
Call your dog away from interesting spots and pay with something better than whatever they were sniffing. Build it near the gate, never inside the cat's space. Our guide to teaching a reliable come when called walks through the full recall plan.
Step 4: Calm settle (medium)
Teach your dog to lie on a mat in the room while your cat moves around. Reward calm, quiet moments generously, and keep the leash on at first so you can guide rather than grab.
If your dog stiffens, growls or guards the box area when you come near, stop the leave it practice there and read our guide to when a dog guards food or objects. If there is any growling or a bite, get help from a veterinary behaviorist or a certified behavior consultant.
What Not to Do: No Muzzles, Punishment or Food Tricks
Punishment backfires. The AKC notes that "often, coprophagia is a result of a person using punishment or harsh methods during house training," and VCA's behaviorists call rubbing a dog's nose in stool an "outmoded, inhumane and useless training technique" that may even encourage the habit.
No muzzles as a fix. A muzzle hides the problem and teaches your dog nothing about the box.
No scolding after the fact. Your dog learns to raid the box when you are not looking.
No MSG or "taste deterrents" in the cat's food. VCA reports that most dogs develop a tolerance to the taste, and changing your cat's food is a vet decision.
My Dog Just Raided the Litter Box: What Now?
Stay calm, quietly move your dog away, and block the area. Most dogs are fine, but watch the next few days.
Watch the poop. The AKC says that if bowel movements are normal, your dog is probably fine.
Call your vet if your dog has trouble pooping, does not poop, or has abnormal stool, as the AKC advises.
Call sooner if your dog ate a large amount of litter, is small, vomits, or seems unwell.
New habit in an adult dog? The AKC advises a vet visit to rule out health problems, and VCA calls stool testing for parasites the minimum level of testing.
Frequently Asked Questions
Why does my dog keep going in the litter box?
Your dog keeps going back because the box keeps paying off, and every successful raid strengthens the habit. Block access first so the reward stops, then teach "leave it" and "come away." If the habit is new in an adult dog, ask your vet to rule out health problems.
How do I keep a small dog out of the litter box?
Gates and latches fail when the dog is as small as the cat, so use height or a fitted door. A raised box suits an agile cat, and a cat door sized for your cat can stop a slightly larger dog. Add training so the box loses its appeal.
Where should I put the litter box if I have a dog?
Put it in a quiet room your dog cannot enter, away from food, water, busy areas, cat flaps and glass doors, as International Cat Care advises. A gated laundry room or spare room with a cat door works well. Move an existing box gradually.
Can my dog get worms from the litter box?
Yes, it is possible. The AKC says dogs can pick up several species of internal parasites from cat poop, along with bacteria such as salmonella. Ask your vet about regular parasite checks if your dog raids the box, and scoop daily to lower the risk.
When should I get help from a trainer?
Get help if your dog still goes for the box after a few weeks of management and practice, guards the area, or struggles with "leave it." A force-free trainer can coach your timing and set up practice that keeps your cat out of the lesson.
Your Next Step: Set Up One Fix This Week
Pick your fix from the household table, set it up this week, and start scooping daily. Then add five minutes of "leave it" practice a day, away from the litter area at first.
If you want a head start at home, our free 7-day course for new owners is a gentle place to begin. When you are ready for coached practice, pick a manners class date on our calendar or call us at (779) 994-4200.
