Cat Vaccination Schedule: Core and Non-Core Vaccines Explained

Vaccines are one of those things you can’t afford to get wrong. Under-vaccinate and your cat faces potentially fatal diseases. Over-vaccinate and you’re putting them through unnecessary stress and expense. This guide follows the American Association of Feline Practitioners (AAFP) guidelines, which represent the current veterinary consensus.

Core Vaccines (Required for All Cats)

Core vaccines protect against diseases that are widespread, highly contagious, and severe. Every cat needs these regardless of whether they live indoors or go outside.

1. FVRCP (Feline Viral Rhinotracheitis, Calicivirus, Panleukopenia)

Often called the “distemper” vaccine, this combination shot protects against three serious viral diseases:

• Rhinotracheitis (Feline Herpesvirus): Causes upper respiratory infection with sneezing, nasal discharge, and eye inflammation. Highly contagious and lifelong once contracted. Cats become chronic carriers and can shed the virus during stress.
• Calicivirus: Upper respiratory and oral disease. Can cause painful mouth ulcers, lameness, and in severe strains, pneumonia. Multiple strains exist, so vaccination reduces severity rather than guaranteeing complete immunity.
• Panleukopenia (Feline Distemper): Attacks white blood cells and the intestinal lining. Fatal in 90%+ of unvaccinated kittens. The virus is incredibly hardy and can survive in the environment for over a year.

Schedule:

• Kittens: 3 doses at 6-8 weeks, 10-12 weeks, and 14-16 weeks
• Booster: 1 year after the final kitten dose
• Adults: Every 3 years

The reason kittens need multiple doses is that maternal antibodies (passed through the mother’s milk) interfere with vaccination. We don’t know exactly when those antibodies fade, so we give multiple doses to catch the window where the kitten is vulnerable and the vaccine can actually take effect.

2. Rabies

Required by law in most jurisdictions. Rabies is 100% fatal in cats once clinical signs appear, and it’s transmissible to humans. This makes it both a pet health issue and a public health issue.

Schedule:

• Kittens: Single dose at 12-16 weeks
• Booster: 1 year later, then every 1-3 years depending on the vaccine type and local law

Some states accept a 3-year rabies vaccine (PureVax or Imrab 3), while others require annual vaccination. Check your local requirements — your vet will know what applies.

Non-Core Vaccines (Based on Risk)

Non-core vaccines are recommended only for cats with specific risk factors. Your vet will help you decide which ones your cat needs based on their lifestyle.

FeLV (Feline Leukemia Virus)

Recommended for all kittens and for adult cats that go outdoors or live with FeLV-positive cats. FeLV suppresses the immune system, causes anemia, and leads to lymphoma and other cancers. It’s transmitted through prolonged close contact: shared food bowls, mutual grooming, and bite wounds.

Schedule:

• 2 doses, 3-4 weeks apart, starting at 8 weeks
• Annual booster for at-risk cats

The AAFP recommends vaccinating all kittens against FeLV regardless of intended lifestyle, since many “indoor-only” cats end up going outside at some point. For adult indoor-only cats with no FeLV-positive housemates, the vaccine becomes optional after the initial series.

If your cat goes outdoors, this vaccine is not optional. Read more about the risks in our guide on Indoor vs. Outdoor Cats: The Data on Safety and Lifespan.

FIV (Feline Immunodeficiency Virus)

The FIV vaccine is no longer widely recommended due to variable efficacy and interference with diagnostic testing. Vaccinated cats test positive on standard FIV antibody tests, making it impossible to tell whether a positive result means infection or vaccination. Prevention focuses on keeping cats indoors and away from unfamiliar cats who may bite.

Bordetella and Chlamydophila

These respiratory vaccines are occasionally recommended for cats in high-density situations (shelters, catteries, boarding facilities). They’re rarely needed for typical household cats.

Complete Vaccination Timeline

Age	Vaccine	Notes
6-8 weeks	FVRCP #1, FeLV #1	Start kitten series
10-12 weeks	FVRCP #2, FeLV #2	Second round
14-16 weeks	FVRCP #3, Rabies	Complete initial series
1 year	FVRCP booster, Rabies booster	One year after last kitten dose
Every 1-3 years	Rabies	Per local law
Every 3 years	FVRCP	For adult cats
Annually	FeLV	Only for at-risk cats

What to Expect After Vaccination

Most cats handle vaccines well. Common side effects that resolve within 24-48 hours include:

• Mild lethargy or reduced appetite
• Slight swelling at the injection site
• Low-grade fever

Less common but worth watching for:

• Vomiting or diarrhea (contact your vet if it persists beyond 24 hours)
• Facial swelling or hives (allergic reaction — seek immediate veterinary care)
• Injection site lumps lasting more than 3 weeks (report to your vet, as rare injection-site sarcomas can occur)

If your cat has had a previous vaccine reaction, your vet may pre-treat with antihistamines or adjust the vaccination protocol. This is one of those situations covered in our 7 Cat Health Emergencies That Cannot Wait Until Morning guide.

Indoor-Only Cats Still Need Vaccines

Even indoor cats should receive core vaccines because:

• Rabies vaccination is legally required in most areas, and unvaccinated cats who bite someone (even accidentally) may face mandatory quarantine or euthanasia for rabies testing.
• Cats can escape through open doors or torn window screens. A single outdoor encounter with an infected cat can be fatal.
• Panleukopenia virus is extremely hardy and can be carried into the home on shoes, clothing, or even your hands after petting another cat.
• If you ever need to board your cat or take them to a groomer, proof of vaccination is universally required.

Vaccination Costs

Typical costs at a private veterinary clinic in 2026:

Vaccine	Average Cost Per Dose
FVRCP	$25-45
Rabies	$20-35
FeLV	$25-40

The full kitten vaccination series (FVRCP x3 + Rabies + FeLV x2) typically runs $150-250 total, not including exam fees. Low-cost clinics and shelters often offer vaccine packages for $50-100. Many shelters include initial vaccinations in the adoption fee.

FAQ

Can I vaccinate my cat at home? You can buy FVRCP vaccines at farm supply stores, but this is not recommended. Rabies vaccines must legally be administered by a licensed veterinarian. Home vaccination also means no exam to catch health problems, no official vaccine record, and no professional to handle a rare allergic reaction.

My cat is 5 years old and has never been vaccinated. Is it too late? Not at all. Adult cats receiving vaccines for the first time get a modified version of the kitten series: 2 FVRCP doses 3-4 weeks apart, plus rabies. Talk to your vet about whether FeLV vaccination makes sense for your cat’s lifestyle.

Are there risks to over-vaccinating? The AAFP moved to 3-year FVRCP boosters partly because of concerns about feline injection-site sarcomas (FISS), a rare but aggressive cancer linked to vaccination sites. Current best practice is to vaccinate on the minimum schedule that maintains protection.

Should I get titer testing instead of automatic boosters? Titer testing measures antibody levels to determine if a booster is needed. It’s a reasonable option for FVRCP, though the test costs $100-200 — often more than the vaccine itself. Titer testing is not accepted as a legal substitute for rabies vaccination.

If you’re preparing for a new kitten, check out our New Kitten Starter Kit: 10 Essentials Every First-Time Cat Owner Actually Needs for everything else you need to have ready, and our How Much Should I Feed My Cat? A Calorie-Based Guide to get their nutrition right from day one.