Blog/Vaccinations

Do indoor cats need vaccines?

Updated July 12, 2026·5 minper AAFP

INDOOR CAT · VACCINES

An indoor cat still needs the basic shots, even if it never goes outside: the combination shot against feline infections and the rabies shot. The germ behind feline distemper is very hardy and rides into the home on shoes, and rabies is required by law in many countries. The leukemia shot is usually skipped for an adult indoor cat that has no contact with other cats.

01What even an indoor cat needs

The combination shot — protects against feline distemper and two viruses that cause a lingering runny nose and mouth ulcers. After the kitten series it repeats every 3 years.
The rabies shot — needed almost everywhere, often required by law; repeated every 1–3 years depending on the vaccine and country.

02Why “stays indoors” is not a reason to skip

Feline distemper (panleukopenia by its medical name) is a severe intestinal infection and very hardy in the environment. It is brought into the home on shoes and clothing, even if the cat never goes out. A cat can also slip into a hallway or onto a balcony, and boarding, a move or a clinic visit often asks for a vaccination record. That is why the combination shot and rabies are given to fully indoor cats too.

03The leukemia shot — case by case

Feline leukemia is a contagious viral disease that weakens the immune system and causes tumors. It spreads through close contact between cats: saliva, bites and grooming. For an adult indoor cat that lives alone and never goes out, this shot is usually skipped. But it is advised for every kitten under a year regardless of lifestyle, with a blood test before the first dose. If a new cat joins the home or your pet gets outdoor access, discuss the shot with your vet.

Platera shows which shots your cat needs

A plan by age and lifestyle, and a reminder for the next repeat shot.

Platera9:00 AM

Mia’s booster shot is tomorrow — clinic at 12:00

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04Frequently asked

Is rabies vaccination required for an indoor cat?

In most countries the rabies shot is required by law, whether or not the cat goes outside. It is also needed for transport, boarding and travel. Exact requirements depend on the country, so check with your vet.

How often to repeat shots for an indoor cat?

After the kitten series the combination shot repeats every 3 years, and rabies every 1–3 years depending on the vaccine and local law. Your vet notes the next shot date in the passport.

At what age do shots start?

A kitten gets its first combination shot at 6–8 weeks, and the last dose of the series must be at 16 weeks or later. A full schedule by age is in the separate article on the kitten vaccination schedule.

Sources

WSAVA Vaccination Guidelines (2024)↗

AAHA/AAFP Feline Vaccination Guidelines (2020)↗