First Week With a New Cat: Day-by-Day Setup, Litter, Feeding and Vet Checklist

The first week with a new cat should be quiet, predictable and deliberately boring. Your goal is not to introduce the whole house immediately. It is to help the cat find food, water, litter, hiding places and rest without feeling pressured.

For broader long-term care after the settling-in period, use our cat care for beginners guide.

Before arrival: verify the records

Ask for vaccination history, microchip details, recent veterinary records, current medications, parasite-treatment history and the food and litter the cat currently uses. Keep digital and paper copies where practical.

If records are incomplete, tell the veterinarian rather than filling the gaps from memory or assumptions.

Prepare a room the cat can actually live in

Cat Friendly Homes recommends a starter area with safe resting places, food, water, litter, scratching and elevated options. Do not choose a room that is constantly noisy or that the resident cat already treats as its main territory.

Day 1: let the cat leave the carrier voluntarily

Open the carrier and give the cat time. A newly adopted cat may stay inside, hide under furniture or explore only after the household becomes quiet.

Do not interpret hiding as rejection. Our new-cat hiding guide explains what is normal and when reduced eating or other changes become concerning.

Day 1: record food, water and litter use

You do not need perfect measurements, but notice whether food is eaten, urine is produced and stool appears. This creates a baseline for the next few days.

Repeated straining with little or no urine, especially in a male cat, can be an emergency.

Day 2: prioritise predictability

Use the same food, litter and medication schedule the cat already knows unless a veterinarian has told you to change something immediately. A move is usually not the best moment for several simultaneous lifestyle experiments.

Day 2: introduce household members slowly

One calm visitor is easier than a room full of people. Let the cat decide whether to approach. Children should sit quietly and avoid reaching into hiding places.

Day 3: begin gentle play only if the cat is interested

A short wand-toy session can build confidence, but some cats are not ready yet. Do not use play as a test the cat has to “pass.”

Day 3–4: leave the carrier out

Keep the carrier open with familiar bedding so it becomes part of the room rather than something that appears only before stressful travel. This supports future carrier training.

Day 4–5: expand territory only if the cat is ready

Signs of readiness include normal eating and toileting, comfortable movement around the starter room, grooming and some curiosity about the doorway.

Expand gradually. More space is not automatically better if it leaves the cat overwhelmed or unable to find resources.

Resident cats need a staged introduction

Do not open the door and “let them work it out.” Cat Friendly Homes recommends giving cats separate resources and territory because many cats do not automatically want feline company.

Begin with scent exchange and controlled separation before visual and physical contact.

Resident dogs should not crowd the safe room

A dog waiting outside the door can make the room feel unsafe. Manage the dog with gates, leads or distance so the new cat can move and eat without being watched or chased.

Schedule veterinary care based on history and health

A new-patient examination gives the veterinarian a chance to review vaccination, parasite risk, microchip status, dental health, diet, body condition and any existing disease.

Seek care sooner if the cat is ill, has unknown medical history or is not eating normally.

Do not dismiss appetite loss as stress indefinitely

A short-lived reduction can happen after a move, but cats can become ill when they eat too little. Contact a veterinarian if appetite loss is substantial or persists, especially with vomiting, lethargy, weight loss or other symptoms.

End of week 1: compare with the baseline

Ask whether the cat is eating more reliably, using the litter box normally, grooming, moving comfortably and showing increasing curiosity. Progress does not have to mean becoming cuddly.

If function is getting worse rather than better, investigate rather than simply waiting another week.

Before arrival: prepare one safe room

Set up one quiet room before the cat comes home. Include food, water, a large litter box, at least one hiding place, a scratching surface, a comfortable resting area and a few simple toys.

Day 1: open the carrier and give control

Place the carrier in the safe room, open it and allow the cat to leave voluntarily. Do not pull a frightened cat from the carrier or from under furniture to begin introductions.

Keep food familiar at first

Ask the shelter, foster home or previous owner what the cat has been eating. If you plan to change food, transition gradually unless a veterinarian advises otherwise.

Track litter-box use from the beginning

Make sure you see normal urination and stool. Repeated trips to the box with little or no urine, obvious straining or distress can be an emergency, especially in male cats.

Days 1–3: keep household traffic low

Let the cat learn the room before inviting multiple visitors or children in. Sit quietly, offer food or play, and allow the cat to choose whether to approach.

Leave the carrier available

Keep the carrier open with familiar bedding rather than storing it immediately. This can help prevent the carrier from becoming a signal that something frightening is about to happen.

Schedule veterinary care

The AAHA/AAFP feline life-stage guidance supports preventive care matched to age and health. Bring vaccination, microchip, medication and adoption records if available.

Update identification

If the cat is microchipped, confirm that the registry information now has your current phone number and address. A microchip is only useful when the associated contact details are accurate.

Introduce other pets gradually

Use scent exchange, doors, gates or other barriers before direct contact. Curiosity through a closed door is not proof that a face-to-face meeting is ready.

Days 3–7: expand space only when the cat is ready

Look for consistent eating, normal litter use, relaxed exploration and willingness to move around the safe room. Then open access to another small part of the home rather than giving full access all at once.

Watch appetite closely

A new cat may eat less briefly because of stress, but complete refusal to eat, repeated vomiting, marked lethargy or other illness signs deserve veterinary attention.

Use routine to build security

Feed, scoop litter and offer play at roughly predictable times. Cats often settle more easily when the household becomes understandable.

Do not force affection

One cat may sit in your lap on the first evening; another may hide for several days. Progress is better measured by relaxed behavior and normal eating than by how quickly the cat accepts handling.

End of week checklist

• eating reliably;
• drinking or receiving adequate moisture from food;
• urinating and defecating normally;
• using the litter box consistently;
• showing some relaxed resting or exploration;
• microchip/contact details updated;
• veterinary appointment arranged if needed;
• other-pet introductions still controlled and gradual.

Bottom line

The first week is about stability, not speed. Start small, protect food and litter access, let the cat control social distance and expand the environment only after basic routines look normal.