How to Litter Train Kittens: A Comprehensive Guide for New Cat Owners

Litter training a kitten is one of the easier jobs in cat ownership, because the kitten does most of the work for you. Cats are wired to dig and cover their waste, so your task is mostly to give them the right tray in the right spot and let instinct do the rest. Most kittens pick it up within their first few days at home once the set-up is sensible: an easy tray, a litter that feels acceptable underfoot, and calm repetition after meals and naps. When it goes wrong, it is usually a clue rather than a crisis, pointing to the tray, the location, the litter, or occasionally a health problem that needs a vet.^{1, 2}

Why Kittens Take to a Tray

The burying instinct is the whole reason this works. Cats scratch, dig and cover their waste by nature, and in a home that instinct falls on your side: the litter gives them the texture and depth they need to finish the behaviour, so the tray simply makes sense to them.^{1, 2}

Many kittens start learning litter habits from a young age, often by copying their mother or just through routine. When you bring one home, expect a short settling period. Your job in those first few days is to make the tray easy to find and easy to prefer.²

Setting Up the Litter Area

Get the equipment right before you try to teach anything, because most training problems are really set-up problems.

Choose a tray your kitten can enter without effort. Start with a large, open tray. Low sides matter for kittens, since tiny legs should not have to climb. As a general guide, the tray should be big enough for your cat to turn around and squat comfortably, often described as about 1.5 times your cat's length.^{1, 2}

Pick a litter that will not put them off. Unscented litter is the safest starting point for most kittens. If your kitten came from a breeder, shelter or foster home, begin with the same litter they were already using, then change gradually if you need to, because sudden switches can lead to avoidance.^{1, 2}

Place the tray where it feels safe. Cats want privacy without feeling trapped. Put the tray in a quiet, easy-to-reach spot, away from food and water, and away from noisy appliances. Once your kitten has started using it, try not to keep moving it, since consistency helps them map the house.^{1, 2}

Have enough trays. Even with a single kitten, two trays often heads off problems, especially in a larger home. In multi-cat homes, the usual rule is one tray per cat plus one extra, placed in separate locations rather than lined up together like a bank of toilets.^{1, 2, 3}

The Daily Routine

The routine is simple and repeatable. For the first week, quietly place your kitten in the tray at the moments that matter:

• within about 30 minutes after meals
• after naps
• after energetic play

You can gently scratch the litter with your fingers to draw attention to the texture and the digging motion, then give your kitten some privacy.^{1, 2}

Reinforce what you want and do not punish what you do not. If your kitten uses the tray, offer calm praise or a small reward. If there is an accident, avoid scolding, because punishment can make toileting feel unsafe, which is the opposite of what you are building.^{2, 4}

Clean any mistakes promptly and thoroughly so the smell does not draw your kitten back to the wrong spot. If accidents keep happening in one place, block access temporarily and add a tray closer to that area while your kitten is still learning.²

Common Problems and What They Mean

When a kitten avoids the tray, it is usually one of a handful of practical issues:

• The tray is too dirty. Some cats will refuse a soiled tray outright.
• The spot is too exposed, such as a busy hallway, a barking dog or a washing machine.
• The tray feels awkward, being too small, too high-sided, or a covered box that traps smells.
• The litter is unpleasant, through a strong scent, a rough texture, or a sudden change.

Start by returning to basics: a large open tray, a quiet location, unscented litter, and a steady routine after meals.^{1, 2}

Tension between cats can also be at play. In homes with more than one cat, the conflict is often subtle. One cat may simply sit in a doorway and the other decides the tray is not worth the risk. Spread trays across the home, keep them physically separated, and aim for one per cat plus one.^{2, 3}

When It Is Health, Not Training

Some tray problems are medical, and a few are urgent. See a veterinarian promptly if you notice:

• straining or crying in the tray
• very frequent urination or only passing small amounts
• blood in urine or faeces
• sudden, persistent toileting outside the tray

These signs can point to medical problems, and urinary blockage is an emergency, especially in male cats.¹

Keeping Good Habits as Your Kitten Grows

A clean tray is not a luxury for cats, it is part of whether the toilet feels usable. Scoop at least daily, and do a full change and wash the tray regularly, often weekly, then rinse well.^{1, 2}

Update the tray as your kitten outgrows it. Many kittens start in a low-sided tray and need a larger one as they grow. If litter scatter becomes a problem, move to a bigger tray with higher sides, still with an easy entry, rather than switching to a cramped covered box that some cats dislike.^{1, 2}

If your cat is kept in an enclosure for any period, place the litter tray away from feeding and watering areas. This spacing matches basic welfare guidance and also improves tray use.⁵

Litter training is mostly habitat design and gentle repetition. Make the tray easy to reach, pleasant to use and reliably clean, and your kitten will usually take it from there, quietly and instinctively.²

References

1. RSPCA Pet Insurance Australia, Training your cat to use a litter tray
2. RSPCA Knowledgebase, How do I encourage my cat to use a litter tray? (Updated 30 May 2024)
3. RSPCA Knowledgebase, What do I need to know about multi-cat households?
4. British Small Animal Veterinary Association (BSAVA), Position statement on aversive training methods
5. Agriculture Victoria, Code of Practice for the Private Keeping of Cats