Start with the right box placement and setup

A cat will use a litter box reliably when it is straightforward to find, feels safe, and is kept clean. Place the box in a quiet, low-traffic area away from where your cat eats and drinks — cats naturally avoid toileting near their food. A corner of a basement, laundry room, or spare bathroom works well. If you have multiple cats, the rule is one box per cat plus one extra, spread across different locations so no single cat can block access.

The box itself should be large enough for your cat to turn around comfortably — at least 1.5 times your cat's body length. An uncovered box is usually better than a covered one, because covered boxes trap odor and make cats feel trapped. If your cat is older or has mobility issues, choose a box with low sides so entry is straightforward. Keep the box away from noisy appliances like furnaces or washing machines, which can startle a cat mid-use and create negative associations.

Key Takeaways

  • Place the litter box in a quiet, accessible location away from food and water bowls, and use one box per cat plus one extra spread across your home.
  • Scoop waste daily and change litter completely every one to two weeks to prevent odor buildup that makes cats avoid the box.
  • If your cat is not using the box, take it to a veterinarian first to rule out urinary tract infections or other medical problems.
  • When accidents happen, clean the spot thoroughly with enzymatic cleaner to remove scent markers that encourage repeat soiling in the same spot.
  • Reward your cat with treats or praise when ready after using the box so it learns the behavior is desirable.

Keep the litter box clean every single day

Cats are fastidious and will stop using a dirty box. Scoop out clumps and solid waste at least once daily, preferably twice if you have multiple cats. A cat that has to step over waste or dig through soiled litter will find another spot in your home — usually a carpet or closet floor. Remove wet clumps completely, not just the top layer, because urine smell builds up quickly and signals to your cat that the box is full.

Change the litter completely and wash the box with mild soap and water every one to two weeks, depending on how many cats you have and how much litter you use. Do not use ammonia-based cleaners, because ammonia smells like urine and can confuse your cat. Rinse the box thoroughly so no soap residue remains. A clean box with fresh litter is the single most effective way to prevent litter box avoidance.

Choose a litter type your cat will use

Most cats prefer fine-grained, unscented clumping litter that feels like sand under their paws. If your cat is avoiding the box, try switching to a different texture — some cats prefer pellets, pine litter, or paper-based options. Scented litters can actually discourage use because the perfume is overwhelming to a cat's sensitive nose. If you need to change litter brands, do it gradually over a week by mixing the new litter with the old, so your cat does not reject the box because it feels unfamiliar.

The depth of litter matters too. Most cats prefer 2 to 3 inches of litter so they can dig and bury their waste comfortably. Too little litter and the cat hits the bottom of the box; too much and it spills everywhere. If your cat is kicking litter out constantly, you may have too much in the box, or your cat may straightforward be a messy digger — in that case, a larger box or a litter mat underneath can contain the scatter.

Rule out medical problems before assuming behavior issues

A cat that suddenly stops using the litter box or uses it inconsistently may have a urinary tract infection, kidney disease, diabetes, or digestive problems. These conditions cause urgency or pain that makes the cat avoid the box or go elsewhere. Take your cat to a veterinarian for a checkup and urinalysis before you assume the problem is behavioral. A vet can also rule out arthritis or other joint pain that makes climbing into a box difficult, especially in older cats.

If your cat has been diagnosed with a medical condition, work with your vet on treatment and adjust your litter setup to help — for example, a box with very low sides if your cat has arthritis, or multiple boxes placed near where your cat spends most time if it has urgency issues. Once the medical problem is treated, most cats return to normal litter box use.

Clean accidents with enzymatic cleaner to prevent repeat soiling

When a cat has an accident outside the box, the urine or feces leaves a scent marker that tells the cat "this is a toilet." If you clean the spot with regular soap or vinegar, the smell lingers at a level your nose cannot detect but your cat can, and the cat will soil that spot again. Use an enzymatic cleaner specifically made for pet urine, which breaks down the uric acid crystals that cause the odor. Products like Nature's Miracle or Rocco & Roxie are widely available at pet stores and online.

Soak the affected area thoroughly with enzymatic cleaner, let it sit for 10 to 15 minutes, and then blot it up. Do not rinse with water when ready, because that can spread the urine deeper into the material. Let the cleaner dry completely, which takes several hours. If the accident soaked into carpet or wood, you may need to treat the spot multiple times or use a black light to find all the affected areas. Once the enzymatic cleaner has done its work, the scent will be gone and your cat will be less drawn to that spot.

Reward your cat for using the box correctly

Positive reinforcement works better than punishment. When you see your cat use the litter box, give it a treat or a few seconds of praise when ready afterward — within seconds, so the cat connects the reward to the behavior. This teaches your cat that using the box is desirable. Never punish a cat for accidents by yelling, hitting, or rubbing its nose in the mess. Punishment creates fear and stress, which actually makes litter box avoidance worse.

If your cat is struggling to use the box consistently, place a treat next to the box or inside it (on a clean spot) so the cat associates the box with something positive. Some cats respond well to a treat dispensed by a motion-activated toy placed near the box. The goal is to make the box the most rewarding place in your home to toilet.

Manage stress and environmental changes

Cats are sensitive to stress, and major changes — a new pet, a move, a new person in the home, or even rearranged furniture — can trigger litter box avoidance. If your cat stops using the box after a change, give it extra time to adjust and make sure the litter box setup remains exactly the same. Do not move the box location during a stressful period, because the cat may not find it. If you must move the box, place a second box in the old location for a week so your cat can find it in the new spot without losing access.

Provide your cat with hiding spots, perches, and quiet spaces where it can retreat if stressed. A stressed cat is more likely to have accidents. If stress is ongoing — for example, due to a new pet in the home — consider using a Feliway diffuser, which releases a synthetic version of the calming pheromone cats naturally produce. This can help reduce stress-related litter box problems while your cat adjusts.

Frequently Asked Questions

Why is my cat peeing outside the box but pooping in it?

This usually means your cat finds the box acceptable for one function but not the other. The most common cause is that the box is too small or too dirty for comfortable urination, or the litter type is wrong. Try adding a second, larger box with a different litter type in a different location. Also have your vet rule out a urinary tract infection, which causes painful urination and makes cats avoid the box for that function.

My cat uses the box but kicks litter everywhere. How do I stop this?

Some cats are naturally messy diggers. Use a larger box, reduce the litter depth to 2 inches, or place a litter mat under the box to catch scattered litter. A covered box or a box with high sides can also contain the mess, though some cats dislike covered boxes. If the problem is severe, a large storage container with a cat-sized hole cut in the side works well and is inexpensive.

Can I train a kitten to use the litter box, or does it happen naturally?

Kittens learn by watching their mother and by instinct, but you can guide them. Place a young kitten in the litter box after meals and naps, when it is most likely to need to go. Praise and treat when it uses the box. Most kittens catch on within days. If a kitten has accidents, clean them with enzymatic cleaner and make sure the box is easily accessible — kittens have small bladders and need frequent access.

What should I do if my cat refuses to use a new litter box?

Keep the old box in place and add the new one next to it. Let your cat get used to the new box without pressure. Gradually move the new box to its intended location over several days. If your cat still refuses it, the issue may be the box size, litter type, or location. Try a different style of box or return to the original one while you troubleshoot the problem.