To clean a litter box well, scoop out clumps and waste at least once a day, top up with fresh litter, and do a full change with a wash in warm water and mild, unscented soap every two to four weeks for clumping litter. Non-clumping litter usually needs a full change more often.
Key takeaways
- Daily scooping does most of the work. It keeps odor down and makes cats more willing to use the box.
- A full change and wash every two to four weeks suits most clumping litters. Change sooner if odor lingers after scooping.
- Use gentle, unscented cleaners and rinse well. Strong smells can put cats off the box.
In this guide
Why does a clean litter box matter?
Cats have a far more sensitive sense of smell than we do, and many are particular about where they go. A box that feels dirty to them can lead to accidents on rugs, beds or laundry, even when the box looks fine to you. Keeping it clean is one of the simplest ways to prevent those problems before they start.
A regular routine also helps you notice changes in your cat's habits early. Because you see the box every day, you are often the first to spot something that is worth mentioning to your veterinarian.
How often to clean and change cat litter
The right schedule depends on the type of litter and how many cats share the box. Use the table below as a starting point, then adjust based on odor and how your cat responds.
| Task | How often | Notes |
|---|---|---|
| Scoop clumps and solids | At least once a day | Twice a day for multi-cat homes |
| Top up with fresh litter | After scooping, as needed | Keep a steady depth of roughly 2 to 3 inches |
| Full change, clumping litter | Every 2 to 4 weeks | Sooner if odor lingers after scooping |
| Full change, non-clumping litter | About once a week | Urine soaks in, so it saturates faster |
| Wash the empty box | With every full change | Warm water and mild, unscented soap |
A common rule of thumb for multi-cat homes is one box per cat, plus one extra, placed in quiet spots in different parts of the home. More boxes spread the use and keep each one cleaner for longer.
The daily scoop, step by step
- Put on disposable gloves if you prefer, and have a lined trash can or bag ready.
- Lift out clumps and solid waste, working from the edges toward the center so nothing breaks apart in the corners.
- Shake the scoop gently so clean litter falls back into the box.
- Seal the waste and put it in an outdoor trash can. Check local guidance before flushing any litter, as many products and plumbing systems are not suited to it.
- Level the litter and top it up to its usual depth.
- Wipe any litter off the rim and the floor around the box, then wash your hands.
Scooping takes only a couple of minutes once it becomes routine. Many people find it easiest to attach it to something they already do every day, such as making morning coffee.
How to deep clean a litter box
A full change resets the box and removes the residue that daily scooping cannot reach.
- Empty all the litter into a sealed bag.
- Wash the box with warm water and a mild, unscented dish soap, using a sponge or brush kept only for this job.
- Avoid ammonia-based cleaners and strongly scented products. Ammonia smells like urine to many cats, and heavy fragrance can make the box unwelcoming.
- Rinse thoroughly so no soap residue is left behind.
- Dry the box completely before adding fresh litter, since damp litter clumps against the base.
- Refill to the usual depth, and wash any scoop or tools you use at the same time.
Plastic boxes pick up fine scratches over time, and those scratches can hold odor even after washing. If the box still smells soon after a deep clean, it may be time to replace it.
Using a litter sifting tray
A litter sifting tray is a mesh-bottomed insert that sits inside the box under the litter. When you lift it out, the mesh holds back clumps while usable litter falls through, so you can clear the box in one motion instead of hunting around the corners with a scoop. It works best with clumping litter and a standard open box that is slightly larger than the tray.
Cat Litter Sifting Tray with Stainless Steel Mesh
A 4 mm stainless steel mesh floor in a rigid PP frame catches clumps and lets clean litter fall back through, with a hook at each end for drip drying.
Before you buy, measure the inside of your litter box. This tray measures 32 by 26.5 by 9 cm (12.6 by 10.4 by 3.5 in), so the box floor needs to be a little larger for it to sit flat and lift out easily. It comes on its own or with a matching scoop. Rinse the mesh under a faucet during your full change and hang it by one of its hooks to dry.
Hygiene and health checks
- Wash your hands after every scoop, even if you wear gloves.
- If you are pregnant or have a weakened immune system, ask someone else to clean the box where possible, or wear gloves and wash your hands well afterward. Speak to your doctor for personal advice.
- Keep the area ventilated rather than masking odor with heavy air fresheners near the box.
- Notice what you scoop. Clumps that are much larger, smaller or more frequent than usual, or changes in stool, are worth tracking.
Contact your veterinarian promptly if your cat strains in the box, passes little or no urine, cries while going, has blood in the urine or starts going outside the box. A cat that is straining and producing no urine needs urgent veterinary attention.
Frequently asked questions
How often should you change cat litter completely?
For clumping litter that is scooped every day, a full change every two to four weeks suits most homes. Non-clumping litter usually needs changing about once a week because urine soaks into it. Change sooner whenever odor remains after scooping, or if your cat starts hesitating before using the box.
How much litter should be in the box?
A depth of about 2 to 3 inches suits most cats. Too little and urine reaches the base, which makes cleaning harder and odor stronger. Too much and some cats dislike the feel underfoot. Watch how your cat digs and covers, and adjust the depth to what they seem most comfortable with.
What should I use to clean a litter box?
Warm water and a mild, unscented dish soap are enough for routine washing. Avoid ammonia-based cleaners and strongly perfumed products, since the smell can discourage cats from using the box. Rinse thoroughly, dry the box completely, and keep a separate sponge or brush just for this job.
Why does my litter box still smell after cleaning?
Lingering odor often comes from scratches in an older plastic box, too little litter, or a box that serves too many cats. Try a deeper layer of litter, add another box in a multi-cat home, and replace a heavily scratched box. If odor suddenly gets much stronger, mention it to your veterinarian.
Does a litter sifting tray work with any litter?
Sifting trays are designed for clumping litter, because the mesh needs firm clumps to catch while loose litter falls through. Fine granules pass through easily, while very large pellets may not. Check that your box is slightly larger than the tray so it can sit flat and lift out cleanly.
Make clean-up quicker
Find sifters, mats and tools that keep the litter area fresh with less effort.
