Puppy Vaccine Schedule: Complete Guide to Shots, Timing & Core Vaccines 2026

A puppy vaccine schedule outlines which shots your puppy needs and exactly when to give them — starting as early as 6–8 weeks of age and continuing through 16 weeks, with annual or tri-annual boosters throughout life. Following the correct vaccination timeline protects your puppy from life-threatening diseases like distemper, parvovirus, and rabies.

This guide is for informational purposes. Always consult your veterinarian for a vaccination plan tailored to your puppy’s health, lifestyle, and local disease risks.

Why Puppy Vaccines Matter

Puppies are born with some immunity passed from their mother’s milk (maternal antibodies), but this protection fades between 6 and 16 weeks of age. During this window — called the “immunity gap” — puppies are highly vulnerable to infectious diseases. Vaccines bridge that gap by training the immune system to recognize and fight specific pathogens before exposure occurs.

The consequences of skipping or delaying vaccines can be severe. Canine parvovirus kills up to 91% of unvaccinated puppies who contract it. Distemper causes neurological damage, and rabies is fatal in virtually all cases. Vaccination is the single most cost-effective health intervention for your new puppy.

Beyond individual protection, vaccines also support community immunity. When enough dogs in a population are vaccinated, disease spread is slowed — protecting puppies too young to be fully vaccinated and immunocompromised dogs who cannot receive certain shots.

Core vs. Non-Core Vaccines Explained

Veterinary organizations divide puppy vaccines into two categories: core vaccines, which every puppy should receive regardless of lifestyle, and non-core vaccines, which are recommended based on geographic risk, lifestyle, and exposure level.

Source: American Animal Hospital Association (AAHA) Vaccination Guidelines, 2022

Complete Puppy Vaccine Schedule by Age

The standard puppy vaccination series runs from 6 weeks to approximately 16 weeks, with a final rabies shot often given at or after 12 weeks depending on state law. Here is the week-by-week breakdown recommended by most veterinarians in the United States.

Source: AVMA and AAHA Canine Vaccination Task Force, 2023

Between 6 and 16 weeks, puppies need a shot every 3–4 weeks because maternal antibodies can interfere with the vaccine — one dose may not be enough to fully stimulate immunity. Each dose in the series is needed even if the previous one took effect.

Vaccine Costs and Where to Get Your Puppy Vaccinated

The cost of puppy vaccinations varies significantly depending on whether you go to a private veterinary clinic, low-cost clinic, or pet store vaccination event. Here’s a typical price range for common vaccines in the United States.

Average costs as of 2026; prices vary by region and provider.

Low-cost clinics are available at many veterinary clinics listed on HeiBob. Pet insurance typically covers wellness exams and vaccinations under a wellness add-on plan. Consider a pet insurance policy to offset these recurring costs.

Vaccine Side Effects: What’s Normal and What’s Not

Most puppies experience mild, temporary side effects after vaccination. These are a sign that the immune system is responding — not that something is wrong. Common normal reactions include mild lethargy for 12–24 hours, slight soreness or swelling at the injection site, reduced appetite, and a low-grade fever.

Rare but serious reactions to watch for include facial swelling, hives, vomiting, difficulty breathing, collapse, or persistent vomiting within 1–2 hours of vaccination. These signs indicate a possible allergic reaction (anaphylaxis) and require immediate veterinary care. This occurs in roughly 13 in 10,000 dogs vaccinated, according to the Journal of the American Veterinary Medical Association.

To minimize risk, stay at your vet’s office for 15–20 minutes after each shot. Avoid vaccinating a sick puppy — always inform your vet of any symptoms before the appointment. If your puppy has had a prior reaction, your vet may pre-medicate with antihistamines or split vaccines across multiple visits.

Adult Dog Booster Vaccine Schedule

Puppy vaccinations don’t last forever. Once your puppy completes the initial series and receives the 12–16 month boosters, they move into an adult maintenance schedule. The frequency of boosters depends on the vaccine type and your state’s legal requirements for rabies.

• DA2PP (distemper/parvo combo): After the 1-year booster, most are effective for 3 years. Your vet may recommend titer testing to check immunity levels rather than automatically re-vaccinating.
• Rabies: A 1-year rabies vaccine is given after the puppy series; then a 3-year rabies vaccine may be used in subsequent boosters, depending on state law.
• Bordetella (kennel cough): Required annually or bi-annually by most boarding facilities, groomers, and doggy daycares. Some intranasal versions are given every 6 months in high-risk dogs.
• Leptospirosis: Annual booster recommended in endemic areas or for dogs with water/wildlife exposure.

Work with your local vet to set a personalized schedule. Dogs with chronic illness, compromised immune systems, or a history of reactions may benefit from antibody titer testing instead of routine revaccination.

Ready to find a trusted veterinarian for your puppy’s vaccination needs? Browse veterinary clinics near you on HeiBob to book your puppy’s first appointment today.