Cat Vaccination Schedule: Core Shots, Kitten Timeline & Booster Guide

Cat vaccination schedules get less attention than dog schedules, but they're just as involved — especially in the first few months, when kittens need a series of shots spaced a few weeks apart rather than a single visit. Whether you've just adopted a kitten or you're catching up an adult cat's records after a move or a vet switch, here's how the schedule generally breaks down.

Core vs. non-core vaccines

Vets generally split cat vaccines into two groups:

• Core vaccines — recommended for essentially every cat regardless of lifestyle. This usually means FVRCP (a combination vaccine covering feline viral rhinotracheitis, calicivirus, and panleukopenia) and rabies.
• Non-core vaccines — recommended based on risk factors, most commonly FeLV (feline leukemia virus), especially for kittens and cats with outdoor access or exposure to other cats of unknown vaccination status.

Kitten vaccination timeline

Kittens don't get full protection from a single shot — maternal antibodies interfere with vaccine response early on, so the series is spread across several visits to make sure at least one dose lands after that protection fades. A commonly used general timeline looks something like:

• ~6-8 weeks: First FVRCP dose; FeLV testing typically starts around here if not already done.
• ~9-12 weeks: FVRCP booster; first FeLV vaccine if your vet recommends it.
• ~12-16 weeks: Final FVRCP booster in the series; rabies vaccine (exact minimum age depends on the vaccine brand and local law); FeLV booster if started.

Some vets use a slightly different spacing or add an extra booster, so treat this as a general shape rather than an exact calendar — your vet's specific protocol is the one that matters.

Adult booster schedule

After the kitten series, cats typically get a booster about a year later, then move to a less frequent schedule — often every one to three years depending on the specific vaccine and your vet's assessment of ongoing risk. Rabies revaccination intervals are frequently set by local law rather than purely medical judgment, so that one's worth double-checking with your vet or municipality directly.

Indoor cats still need most of these

It's a common assumption that indoor-only cats can skip vaccines, but core vaccines are still generally recommended even for cats that never go outside — illnesses like panleukopenia can be tracked in on shoes or clothing, and rabies vaccination is often legally required regardless of lifestyle. Non-core vaccines like FeLV are the ones most likely to be skipped for a strictly indoor, single-cat household, but that's a conversation to have with your vet rather than a default assumption.

Signs of a vaccine reaction

Mild soreness at the injection site or a day of low energy is common and usually resolves on its own. Facial swelling, hives, repeated vomiting, difficulty breathing, or collapse are not normal and need a vet right away — these are rare, but they're the reason vets often recommend staying nearby for a bit after a vaccination appointment rather than leaving immediately.