How Often Should You Clean Your Cat’s Litter Tray?

Your cat judges you. Not for your fashion choices or your questionable taste in reality TV, but for the state of their litter box. 

Cats are fastidious self-groomers who spend hours a day keeping themselves spotless. So when it comes to how often you should clean your cat's litter tray, the bar is higher than most owners realise. 

A dirty litter box isn't just unpleasant. It can be a real health concern for your cat and your household. Get the routine right, and everyone's happier. Get it wrong, and your cat will find somewhere else to go. (Spoiler: it won't be somewhere you'll enjoy.) Or worse, they can become unwell.

Top Tips:

• If you are home, scoop multiple times a day. If your cat is left for extended periods, scoop at least twice a day.
• Full litter change: varies depending on whether you use a clumping or non-clumping litter.
• Use a litter-tray safe enzymatic urine cleaner, like CAT by Dr Lisa Wee Cleaner to clean the spot in the tray where you scooped. This will neutralise any remaining odours. Wash the tray with mild soap, or use an enzymatic urine cleaner whenever you do a full litter change.
• Multiple cats = more frequent cleaning. The rule of thumb is one tray per cat, plus one spare.
• The right litter matters. Clumping litter makes daily maintenance much easier and more hygienic.

How Often Should You Empty the Cat Litter?

Here's a simple routine to follow:

• Daily: As frequently as you can throughout the day, scoop out solid waste and urine clumps. Ideally, remove poo as soon as it happens (once your cat has moved well away from the tray). Spray the area of the tray that you scooped with an enzymatic urine cleaner that’s safe to use in the litter box - CAT by Dr Lisa Wee Cleaner is perfect for this.
• Weekly, or every 2–4 weeks for clumping litter: You should change all the litter and give the tray a proper clean. If you use non-clumping litter, you may need to change it every few days to keep odours under control. With a quality clumping litter, you can go every 2 to 4 weeks before a full empty.
• Every full change: Clean the litter box with CAT by Dr Lisa cat pee cleaner, or wash it with warm water and a mild, fragrance-free soap. Avoid bleach, ammonia-based cleaners, or heavily scented products, as cats have a very strong sense of smell, and cleaning products that seem pleasant to us can be very off-putting to a cat. Make sure the tray is completely dry before adding fresh litter.

Why Does Litter Tray Hygiene Matter So Much?

It's easy to underestimate how much your cat cares about a clean toilet. But there are real health reasons to keep on top of it, for your cat and your family.

Your Cat Can Develop Urinary Tract Disease

A dirty litter box is one of the most common reasons that cats will avoid using it. This can result in your cat resisting the urge to urinate, which can result in lower urinary tract diseases, some of which can be life-threatening.

Your Cat Will Find Somewhere Else to Go

Cats are quite particular, and if their litter tray isn't clean, they may find somewhere else in your house to go instead. That somewhere else is often your carpet, your bed, or a corner you won't notice until it really starts to smell.

If your cat has started going outside the tray, a dirty litter box may be the culprit. 

There Are Real Health Risks

Infrequent cleaning can lead to greater exposure to bacteria and parasites, especially if you have young children, pregnant women or immunosuppressed people in the home.

How Often Should I Clean My Kitty Litter Tray If I Have Multiple Cats?

More cats means more waste. If multiple cats are using the same tray, you'll likely need to change the litter daily. The general recommendation is one litter tray per cat, plus one extra. So two cats should have three trays.

If your cats decide to share a litter box, you'll need to deep-clean it more frequently, potentially every day if it's heavily soiled.

Does the Type of Litter Affect How Often You Empty the Kitty Litter?

Yes, significantly. Clumping litter makes the daily scoop much easier because urine forms solid clumps you can remove cleanly. Non-clumping litter absorbs liquid but doesn't bind, which means odour builds up faster and the whole tray needs to be replaced sooner.

Most cats prefer non-scented, clumping litter. If you want to switch your cat's litter, do it gradually. Mix the new litter in over at least a week to avoid rejection.

The quality of your cat litter matters too. A well-formulated litter controls odour between scoops and keeps your cat comfortable using the tray consistently.

What About Accidents Outside the Tray?

Even with the best routine, accidents happen, especially if the tray gets too full between cleans, or if your cat is unwell. When urine hits carpet or soft furnishings, standard household cleaners won't cut it. They mask the smell temporarily but don't break down the uric acid crystals that cause the odour to return.

An enzyme-based cat wee spray neutralises the odour at the source. CAT by Dr Lisa's Wee Cleaner uses natural odour-neutralising enzymes with no harsh chemicals, and the built-in brush makes it easy to work into carpet fibres.

And if your cat has tracked litter or had a minor mess on their coat, cat wipes with gentle, natural ingredients are a quick and stress-free way to clean them up between baths.

Signs Your Cleaning Routine Needs an Upgrade

• Your cat is going to the toilet outside the tray
• The tray smells within hours of scooping
• Litter is tracking excessively around the house
• Your cat is spending less time covering their waste
• You notice wet patches at the bottom of the tray (a sign the litter is saturated)

A single cat can use their litter tray 3–5 times a day, usually urinating 2–4 times and defecating once or twice. If any of the above signs are showing up, scoop more frequently, reassess your litter type and have your cat checked by their vet.

Healthy Homes and Healthy Cats Start With Clean Litter

A clean litter tray protects your cat's health, keeps your home fresh, and reduces the risk of your cat going where they shouldn't. Daily scooping is non-negotiable. A weekly or fortnightly full change (depending on your litter type) is needed too.

And the litter you choose matters just as much as how often you change it. CAT by Dr Lisa's Oat Litter is B-Corp Certified and is made right here in Australia. It's plant-based, 100% biodegradable and fragrance-free, clumping fast for easy scooping. Better for your cat, better for your home, and better for the planet.

Always consult your veterinarian if your cat's litter tray habits change suddenly, as this can indicate an underlying health issue.