Separate bases first, togetherness later
The arrangement that protects both animals is boring on paper: the kitten starts life in one kitten-proofed room containing everything she needs — litter tray well away from her food and water, a scratching post, a hiding den, toys and a warm bed — while the dog keeps the rest of his home and, crucially, keeps his existing routine exactly as it was. Your dog has just lost his monopoly on you; the most reassuring thing you can offer him is that his meals, walks, bed and evening habits arrive unchanged. The kitten, meanwhile, gets to learn one room's smells and sounds completely before the house gets bigger, which is how small kittens build confidence instead of hiding under furniture for days.
Scent and sight before shared space
Introductions work in layers over days, not in one ceremonial meeting. Swap bedding between the dog's bed and the kitten's room so each sleeps with the other's smell. Feed them on opposite sides of the closed door so the other's scent arrives paired with the best part of the day. Let the dog see the kitten at a distance through a gate while both are rewarded for calm behaviour — looking away, settling, and disengaging are what you pay, not excited staring, whining, lunging or the kitten's puffed tail and flattened ears, all of which mean the distance or the session length was too much.
Feeding, litter and rest: permanently separate
Some separations are not a stage; they are the permanent management of a two-species house. Feed in different places forever — dog food overwhelms a kitten's digestion, kitten food is far too rich for most dogs, and a dog investigating a kitten's bowl mid-meal is how resource tension starts. Keep the litter tray somewhere the dog genuinely cannot reach, because dogs investigate litter trays with an enthusiasm that revolts owners and spreads litter everywhere, and because the kitten needs to toilet without being watched or ambushed. Protect rest in both directions: the kitten gets high or enclosed sleeping spots the dog cannot poke, and the dog's bed is a no-kitten zone too, enforced kindly by moving the kitten away and giving her a better option, so the dog never has to defend his one retreat from a playful kitten at midnight.
Dividing your attention without splitting yourself
Fairness does not mean equal minutes; it means each animal's needs reliably met in a pattern they can predict. Keep the dog's walks and one-to-one play untouched, add the kitten's play in short bursts fitted around them — a wand toy session in her room morning and evening teaches her when to expect you and burns the energy that otherwise erupts at night. If either animal's behaviour shifts — the dog becoming clingy, destructive or off his food, the kitten hiding more rather than less, toileting outside the tray or over-grooming — treat it as a signal to slow the integration back a layer and rebuild calm, not as naughtiness to correct.
One plan, visible to the whole household
Two-species households go wrong when one person lets the dog into the kitten's room 'just for a minute' while another is still doing door feeds. The introduction stage, feeding spots, forbidden rooms and each animal's vet and food details need to live somewhere every person in the house can check before they improvise.
KinsLe Family Sharing lets the owner grant chosen family members access to the profiles for the dog and kitten.