New Kitten

Litter Training a Kitten: The Easy Way

Litter training a kitten is usually the easiest part of cat ownership — they come pre-wired for it. Here's the warm, practical, no-stress way to get it right from day one, the golden rules on trays and litter, and how to handle accidents without ever reaching for punishment.

By Matt Garnett, founder27 June 2026Lived-experience guidance, not medical advice

Why kittens take to it so easily

Here's the good news I tell every new kitten owner: you're not really teaching your kitten to use a litter tray — you're just giving them somewhere to do what they already want to do. Cats are instinctively clean animals. From around three weeks of age kittens start using a tray, mostly by copying their mum, and they have a natural urge to dig in a soft, loose substrate and bury their waste afterwards.

That means your job isn't training in the dog-obedience sense. It's setting the stage so the right thing is the easy thing — the correct tray, the correct litter, in the correct spot. Get those right and most kittens are reliably using the tray within a day or two of coming home. The handful that need a nudge usually just need a clearer setup, not more discipline.

The golden rules (get these right and you've basically won)

Provide enough trays. The rule the behaviour experts use is one tray per cat, plus one spare. So a single kitten ideally gets two trays. It sounds like a lot for one little cat, but it removes the single biggest cause of accidents: a tray that's occupied, dirty, or just feels unsafe in the moment. If you have two cats, that's three trays — and don't line them up side by side, as a cat often reads two adjacent trays as one and won't use either if one's soiled.

Place them somewhere quiet, and away from food. Cats don't like to toilet near where they eat and drink, and they want privacy. Pop the tray in a discreet corner, away from the food and water bowls, away from the kitten's bed, and away from noisy or high-traffic spots — washing machines, doorways, corridors, cat flaps and busy thoroughfares. A startled kitten mid-wee learns that tray equals danger, and that's a hard lesson to undo.

Size and depth matter. Kittens need a low-sided tray they can clamber into without a struggle — high walls are a genuine barrier for tiny legs. As they grow, size up. A good rule from Cats Protection is a tray around one and a half times the length of your cat from nose to base of tail, so they can turn, dig and cover comfortably.

Choose the litter carefully, and skip the scent. Many cats prefer a fine, sand-like litter that feels soft underfoot and is easy to dig — it's closest to what their ancestors used. International Cat Care suggests starting kittens on a sand, wood or paper-based litter rather than clay. Aim for roughly 3cm of litter: deep enough to dig and bury, not so deep it's awkward. Crucially, avoid scented litters. Cats have far more sensitive noses than we do, and a perfumed litter that smells lovely to you can put a kitten off the tray entirely. If your kitten's breeder or rescue used a particular litter, stick with it at first — cats often prefer what they learned on as kittens, and you can transition gradually later.

The step-by-step

1. Show them the tray on arrival. As soon as your kitten is home and has had a moment to settle, gently place them in the tray so they know where it is. Do this again whenever you move them to a new room. 2. Time it around their routine. Kittens most often need to go shortly after waking from a nap, after eating, and after a play session. Pop them in the tray at these moments and you'll catch most of the action. 3. Help them get the idea. If your kitten hasn't twigged it yet, stand them in the tray and gently use one of their forepaws to scratch at the litter. That little digging motion often switches the instinct on. 4. Praise, never punish. When they get it right, a calm, warm word or a gentle stroke is plenty. If they have an accident, clean it up quietly and move on. Punishment — telling off, rubbing their nose in it, anything like that — does not work. Kittens don't connect it to the act; it just teaches them you're scary, which makes everything worse.

A quiet, settled environment helps too. Bringing a kitten into a busy home is a big change, and some find a calming pheromone product (the plug-in diffusers that copy a cat's natural reassuring scent) helps them relax — a more relaxed kitten is a more reliable kitten.

Keeping it clean (the bit that actually keeps them coming back)

Cats are fastidious, and a dirty tray is one of the quickest routes to a kitten deciding the floor is nicer. Scoop out the solids and clumps at least once a day — twice is better. Then give the whole tray a full empty and wash at least once a week. A decent scoop and a litter mat at the front of the tray make this far less of a chore and keep tracked litter off your floors.

One important warning on cleaning products: never use cleaners containing ammonia, and steer clear of strong-smelling disinfectants. Urine already contains ammonia, so an ammonia cleaner can actually smell like a wee-spot to your cat and encourage them to go there again. Warm water with a little unscented detergent, well rinsed and dried, is all you need for the tray itself.

Covered tray or open tray?

There's no single right answer — it's down to the individual cat. Some cats appreciate the privacy and security of a covered, hooded tray; others feel trapped by it, dislike the way it holds odours in, or simply don't like having only one exit. For a new kitten I'd usually start with an open, low-sided tray so they can see out and feel safe, then experiment with a hood later if they seem to want more privacy. If you switch and your kitten suddenly stops using it, that's your answer — go back to what worked.

Troubleshooting accidents

If a previously reliable kitten starts having accidents, work through it calmly and in this order:

Rule out a medical cause first. Toileting problems are very often physical, not behavioural. Before you assume it's a habit issue, it's worth a vet check (see the next section).
Tray aversion. Is the tray clean enough? Is the litter scented or a type they dislike? Did you recently change brand, depth or tray style? Cats are picky, and one bad change can put them off.
Location. Has the tray moved somewhere noisier or busier? Is another pet blocking access? Sometimes the fix is simply adding a second tray in a calmer spot.
Stress. Accidents and spraying can be a sign of anxiety — a house move, new pet or person, building work, or a disrupted routine. A calming pheromone diffuser, more hiding spots and a steady routine can all help settle things.

Through all of this, the rule never changes: don't punish. A stressed cat toilets more, not less, so telling them off feeds the exact problem you're trying to fix.

When it's a vet issue

Some signs mean it's time to ring your vet rather than tinker with the setup. Contact your vet promptly if your kitten or cat is:

Suddenly toileting outside the tray when they were previously reliable
Straining, crying or clearly in pain when trying to pee
Producing only tiny amounts, or passing pink, red or blood-tinged urine
Going much more often, or repeatedly squatting with little result

These can point to a urinary tract infection, cystitis or a bladder problem — all of which cause real discomfort and need treatment. One situation is a genuine emergency: a cat that is straining but passing no urine at all and is distressed. This can mean a blocked bladder, which is far more common in male cats because their urethra is longer and narrower. A blockage is life-threatening and needs urgent veterinary attention the same day — do not wait and see. If in doubt, phone your vet; they would always rather hear from you early.

This guide shares lived-experience, practical advice and is not a substitute for veterinary care — when something seems off with your cat's health, your vet is always the right call.

Sources

Cats Protection — Cats & Toileting
International Cat Care — Litter trays
RSPCA — How to train a cat to use a litter tray
PDSA — Urine problems in cats
PDSA — Blocked bladder in cats

Common questions

How long does it take to litter train a kitten?

Most kittens are reliably using the tray within a day or two of coming home, because the instinct is already there from around three weeks of age. They learn largely by copying their mum. If yours needs a hand, gently place them in the tray after meals, naps and play, and the habit usually clicks very quickly. Persistent struggles are usually a setup issue — wrong litter, wrong place, or not enough trays — rather than a slow learner.

How many litter trays does one kitten need?

The expert rule is one tray per cat plus one spare, so a single kitten ideally has two trays. It seems generous for one small cat, but it removes the most common cause of accidents — a tray that's occupied, dirty or feels unsafe at the wrong moment. For two cats you'd want three, and don't place them side by side, as cats often treat two adjacent trays as one.

What's the best litter for a kitten?

Many cats prefer a fine, soft, sand-like litter that's easy to dig, and International Cat Care suggests starting kittens on sand, wood or paper-based litter rather than clay. Use around 3cm depth. Most importantly, avoid scented litters — cats have very sensitive noses and strong perfumes can put them off the tray completely. If your kitten was raised on a particular litter, stick with it at first and change gradually.

Should I use a covered or open litter tray for my kitten?

It depends entirely on the individual cat. Some like the privacy of a covered, hooded tray; others feel trapped or dislike that it holds odours in. For a new kitten I'd start with an open, low-sided tray so they can see out and feel secure, then try a hood later if they seem to want more privacy. If switching makes them stop using it, change back — their behaviour tells you what they prefer.

What should I do if my kitten has an accident outside the tray?

First, never punish them — kittens don't connect a telling-off to the act, and it only adds stress, which makes toileting problems worse. Clean it up quietly with a non-ammonia cleaner (ammonia smells like urine and can attract them back to the spot). Then check the basics: is the tray clean, is the litter one they like, is it somewhere quiet and private, and do you have enough trays? If a previously reliable kitten suddenly starts having accidents, rule out a medical cause with your vet.

When are toileting problems a sign of a vet issue?

Ring your vet if your kitten is straining or crying when peeing, passing only tiny amounts, producing pink, red or blood-tinged urine, going much more often, or suddenly toileting outside the tray after being reliable. These can signal a urinary infection, cystitis or bladder problem. A cat straining but passing no urine at all, and clearly distressed, is an emergency — this can be a blocked bladder, which is far more common and dangerous in male cats and needs urgent same-day veterinary care.

About the author

Matt Garnett — founder, Giddy Pets

Matt started Giddy Pets to make getting pets the good stuff simpler and fairer. Everything in these guides comes from real life with pets and a lot of trial and error — it's practical guidance, not veterinary advice. If a guide gets something wrong, tell him directly.