Does the puppy vaccination schedule depend on breed?

No. The core puppy vaccination schedule is age-based and identical for every breed and size, because the vaccine dose is not scaled to body weight like medications are. What varies is the non-core (lifestyle) vaccines, which depend on exposure and geography, not breed.

Why does the last core shot have to be at 16 weeks?

Puppies carry temporary immunity from their mother that can block a vaccine from working. That protection usually fades by about 16 weeks, so the final core dose is given then so the puppy builds its own lasting immunity.

Puppy Vaccination Schedule Generator (by Birth Date)

Q: When do puppies get their shots?

Core DHPP starts around 8 weeks and repeats every 2-4 weeks until at least 16 weeks of age. Rabies is given once at 12-16 weeks. Leptospirosis, now core in AAHA latest guidance, starts at 12 weeks. A booster follows around 6-12 months.

Q: Can my puppy go outside before finishing its shots?

Start socialization early; the key window closes around 12-14 weeks. Once your puppy has had its first vaccine set at least a week earlier, socialize in controlled, low-risk settings while avoiding unknown dogs and high-traffic areas until the core series is complete. Ask your vet what is safe in your area.

A veterinarian and volunteer examine a happy dog with a stethoscope. — Photo: Mikhail Nilov / Pexels

Enter your puppy’s birth date and get a personalized vaccination schedule with real dates, built on the AAHA canine vaccination guidelines. The core schedule is the same for every breed. Add your dog’s lifestyle for the right non-core (lifestyle) vaccines.

Vaccination Schedule

Puppy Vaccination Schedule Generator

AAHA-based core schedule with your dates, plus lifestyle vaccines. Not a substitute for your vet.

Puppy’s birth date

Sets the dates. Don’t know it? Estimate from your puppy’s age.

Breed (optional)

Personalizes your plan. The core schedule is identical for all breeds.

Your puppy’s lifestyle (for non-core vaccines)

Will be around other dogs: boarding, daycare, grooming, dog parks, or training classes (Bordetella, Canine Flu)
Spends time in tick areas: woods, tall grass, hiking, or hunting (Lyme)

Enter your puppy’s birth date to see the schedule.

Puppy vaccination schedule at a glance

Vaccines work by lining up with the window when a puppy’s inherited “maternal” immunity fades. That is why the series repeats every few weeks and why the final core dose must land at 16 weeks or older to be reliable. Here is the AAHA-based schedule the generator uses.

Age	Core vaccines	Notes
8 weeks	DHPP (1st)	Distemper, hepatitis, parvo, parainfluenza (may start at 6 wks)
12 weeks	DHPP (2nd), Leptospirosis (1st)	Lepto not before 12 weeks; ~4 wks after 1st DHPP
16 weeks	DHPP (3rd/final), Rabies, Leptospirosis (2nd)	Final DHPP must be at 16+ weeks
~6 months	DHPP booster	WSAVA 2024 advises a booster at 26 weeks
~12 months	Rabies & Lepto boosters	Then DHPP/Rabies every 3 years; Lepto yearly

A female doctor in a white coat using a stethoscope during a patient examination. — Photo: Thirdman / Pexels

Core vs. non-core (lifestyle) vaccines

Core vaccines are recommended for every dog: DHPP and Rabies, plus Leptospirosis, which AAHA reclassified as core in its 2024 update (some clinics still offer Lepto based on lifestyle, so confirm it with your vet). Non-core (lifestyle) vaccines depend on where your dog goes and what it is exposed to, not its breed:

Vaccine	Who needs it	Schedule
Bordetella	Boarding, daycare, grooming, dog parks, classes	1 dose (intranasal/oral) or 2 doses (injectable), then yearly
Canine Influenza	Same social/high-density settings; outbreak areas	2 doses 2–4 wks apart, then yearly
Lyme	Tick-heavy or wooded regions; outdoor/hunting dogs	2 doses 2–4 wks apart, then yearly

Rabies is set by law. Your state or local government decides the exact rabies timing and whether a 1-year or 3-year product is used. Your vet follows that law, so treat the rabies date here as a typical guide.

Frequently asked questions

Does the vaccination schedule depend on breed?

No. The core puppy vaccination schedule is age-based and identical for every breed and size, because the vaccine dose is not scaled to body weight the way medications are. What varies between dogs is the non-core (lifestyle) vaccines, which depend on exposure and geography, not breed.

When do puppies get their shots?

Core DHPP starts at 6–8 weeks and repeats every 2–4 weeks until at least 16 weeks of age (usually three doses). Rabies is given once at 12–16 weeks. Leptospirosis, now core in AAHA’s latest guidance, is given at about 12 and 16 weeks. Boosters follow at around one year.

Why does the last shot have to be at 16 weeks?

Puppies carry temporary immunity from their mother that can block a vaccine from “taking.” That protection usually fades by about 16 weeks, so the final core dose is given then to make sure the puppy builds its own lasting immunity.

Can my puppy go outside before finishing its shots?

Start socialization early — the key window closes around 12–14 weeks, so don’t wait for the last shot. Once your puppy has had its first vaccine set at least a week earlier, you can safely socialize in controlled, low-risk settings (clean spaces, known healthy dogs), while avoiding unknown dogs and high-traffic areas until the core series is complete. Ask your vet what is safe in your area.

This schedule is a general guide based on the AAHA Canine Vaccination Guidelines and is not veterinary advice. Your veterinarian sets the final plan based on your puppy’s health, your region, and local rabies law, and may adjust timing or add or remove vaccines. Always confirm your puppy’s schedule with your vet.

Puppy Vaccination TimelineCore vaccines by age, AAHA-based. Your vet sets final timing.

Age	Core vaccines due
6 to 8 weeks	DHPP (1st dose)
10 to 12 weeks	DHPP (2nd dose) + Leptospirosis (1st)
16 weeks	DHPP (3rd, final) + Rabies (1st) + Lepto (2nd)
~6 months	DHPP booster
~12 months	Rabies (1-year booster) + Lepto (annual)

DHPP = distemper, hepatitis, parvo, parainfluenza. Rabies timing follows local law.tailtutor.com