Bringing home a puppy comes with a surprising amount of paperwork for something that mostly chews on paperwork. Somewhere between the adoption contract and the first bag of kibble, you're handed a vaccine record — often a single flimsy card with one or two stamps on it — and told to "keep up with the shots."
Keep up with which shots, exactly? And when? The first year of a puppy's life involves more vet visits than most dogs will see in the following five years combined: a series of combination vaccines repeated every few weeks, a legally required rabies shot, a round of boosters roughly a year later, and a handful of optional vaccines that depend entirely on how your dog lives.
This guide lays out the typical puppy vaccination schedule — the standard first-year pattern most vets in the US follow — plus what "core" and "non-core" actually mean, why puppies need a whole series instead of one jab, and what the shots roughly cost.
One thing before we start, and we'll repeat it because it matters: this is the typical pattern, not medical advice. Your veterinarian sets the actual schedule for your puppy based on age, breed, health history, local disease risk, and local law. Use this article to understand the roadmap; use your vet to drive it.
Then we'll cover the part nobody warns you about: years from now, a boarding kennel or a landlord will demand proof of a shot your puppy got before it could climb stairs — and you'll be very glad you kept your own record.
The typical puppy shot schedule, from 6 weeks to adulthood
Most US vets follow a version of the pattern below, built around a combination vaccine usually abbreviated DHPP (sometimes DAPP or DA2PP): distemper, adenovirus/hepatitis, parainfluenza, and parvovirus in one injection. The exact ages shift a little from clinic to clinic — what stays constant is the rhythm of a shot every 3–4 weeks until around 16 weeks.
-
6–8 weeks: first DHPPThe first distemper-parvo combo shot, often given by the breeder, shelter, or rescue before you even bring the puppy home. Check the paperwork you received — this one may already be done, and the date matters for timing everything that follows.
-
10–12 weeks: second DHPP, plus lifestyle vaccinesThe second combo shot in the series. This is also when vets commonly start non-core vaccines if your puppy's lifestyle calls for them — bordetella (kennel cough) if daycare or boarding is in the future, leptospirosis if you're in an area where it's common. Your vet will recommend based on where and how you live.
-
14–16 weeks: final DHPP and rabiesThe last shot of the puppy series — the one that matters most, because it lands after maternal antibodies have faded (more on that below). Rabies is typically given around this visit too, at whatever age your state or local law requires. The rabies certificate you get here is the single most-requested document in your dog's life. Photograph it immediately.
-
12–16 months: first adult boostersRoughly a year after the puppy series, your dog gets DHPP and rabies boosters, plus boosters for any non-core vaccines. This visit is easy to miss — it arrives long after the flurry of puppy appointments has faded from memory, which is exactly why it deserves a reminder with a long lead time.
-
Adulthood: every 1–3 yearsAfter the first adult boosters, most core vaccines move to a 1-to-3-year cycle depending on the vaccine used and local law — three-year rabies vaccines are common but not universal. Non-core vaccines like bordetella are often annual, and some boarding facilities want them even more recent than that.
Again: this is the typical pattern. A puppy who started late, missed a window, or has health complications will get a different plan — and only your vet can write that plan.
Which puppy vaccines are required — and which depend on lifestyle
Veterinary guidelines split dog vaccines into two buckets, and understanding the split makes every vet conversation easier.
Core vaccines: every dog, everywhere
Rabies and the DHPP combo are considered core. Rabies is legally required almost everywhere in the US because it's fatal and transmissible to humans. The DHPP diseases — especially parvovirus and distemper — are widespread, hardy in the environment, and frequently deadly for unvaccinated puppies. Parvo in particular can live in soil for a long time, which is why vets are so insistent about completing the series before your puppy tours the neighborhood.
Non-core vaccines: based on how your dog lives
The second bucket is risk-based. Your vet weighs your region and your dog's routine, then recommends accordingly:
-
Bordetella (kennel cough)For dogs who'll be around lots of other dogs — boarding, daycare, grooming, training classes, dog parks. Many facilities require it and won't budge without proof.
-
LeptospirosisA bacterial disease spread through wildlife urine and standing water. Increasingly recommended broadly, and often folded into the combo shot as "DHLPP." Common enough that many vets now treat it as near-core.
-
Lyme diseaseFor dogs in tick-heavy regions — much of the Northeast and upper Midwest — or dogs who hike, hunt, or spend serious time in brush.
-
Canine influenzaOften recommended for social dogs in areas that have seen outbreaks, and required by some boarding and daycare facilities.
"Non-core" doesn't mean "unimportant" — it means the risk calculation is local and personal. A city apartment dog and a farm dog in the same state can reasonably end up with different vaccine lists. That's a conversation to have with your vet, not a checkbox exercise.
Why puppies need a series of shots, not just one
The repeated-shots thing confuses everyone. If one vaccine works, why does a puppy need three or four of the same one?
The answer is maternal antibodies. Nursing puppies absorb protective antibodies from their mother's milk in the first days of life. Those antibodies are genuinely useful — they defend the puppy while its own immune system is still booting up — but they have an awkward side effect: they can also neutralize vaccines, blocking the puppy's immune system from building its own long-term protection.
Here's the tricky part: maternal antibodies fade at an unpredictable rate, somewhere between roughly 6 and 16 weeks of age, and it varies puppy to puppy. Fade early, and a puppy is unprotected sooner than anyone expects. Fade late, and the early vaccines may not fully "take."
The series is how vets cover that moving window. By repeating the DHPP shot every 3–4 weeks, they ensure at least one dose lands after the maternal antibodies have dropped low enough for the vaccine to do its job — without leaving a long unprotected gap. It's why the final shot at 14–16 weeks is the one vets care most about, and why skipping a middle shot or stretching the intervals can quietly undermine the whole series.
It's also why the standard advice is to keep puppies away from dog parks and other high-traffic dog areas until 1–2 weeks after that final shot. Mid-series, protection is a maybe — and parvo doesn't grade on a curve.
What puppy shots cost — and how to pay less
Vaccine pricing varies enormously by region, clinic, and how the visit is bundled, so treat any specific dollar figure you read online with suspicion. What's consistently true: the first year is the most expensive year, because you're paying for three or four visits' worth of exams and injections rather than one annual checkup.
A few honest ways to keep the bill down:
-
Low-cost vaccine clinicsMany animal shelters, humane societies, and mobile vet services run walk-in vaccine days at a fraction of full-service prices. Perfectly legitimate — just make sure you leave with a signed record or certificate for every injection.
-
Puppy wellness plansMany clinics bundle the whole first-year series, exams included, into a flat monthly fee. Worth comparing against paying per visit.
-
Check what's already doneShelters and reputable breeders usually cover the first shot or two. Paying for a repeat because the paperwork got lost is the most avoidable cost in this whole process — which is a record-keeping problem, not a medical one.
Wherever you get the shots, the medicine is the same — but the paperwork isn't. A full-service vet logs everything in their system; a pop-up clinic hands you a paper certificate and you may never see them again. That certificate is the only proof the shot ever happened, which brings us to the part of this guide that outlasts puppyhood.
Proof of vaccination: the document everyone demands and nobody can find
Here's what the puppy books don't tell you. The shots take a year; the proof of the shots gets demanded for the rest of your dog's life.
Boarding kennels want current rabies and bordetella records before they'll take your dog for the weekend. Groomers ask. Daycares ask. Trainers ask. Landlords and homeowners insurance sometimes ask. Groomers you've used for years will still ask again the moment a certificate expires. And every one of them wants it now — usually while you're standing at a counter with a dog on a leash and a trip to catch.
Meanwhile, where is the actual record? Scattered. Some of it is in your current vet's portal — which may require a login you set up once in a waiting room. Some is with the low-cost clinic that did the 10-week shots. Some is on the shelter's intake paperwork. And if you switch vets or move cities, requesting records from a previous clinic can take days and a fax machine's worth of patience. Vet portals are genuinely useful, but they lock your dog's history inside whichever practice happens to hold it.
The fix is simple and boring: keep your own copy of everything, from the very first shot.
-
Photograph every certificateEspecially the rabies certificate — snap it before you leave the parking lot. A phone photo stored somewhere findable beats a pristine original filed somewhere forgotten.
-
Log the vaccine, the date, and the next-due dateThree fields per shot. The next-due date is the one that saves you: "rabies, given 2026-08-15, due 2029-08" answers every kennel's question instantly.
-
Set reminders before boosters lapseA reminder a month before the due date gives you time to book the appointment. A lapsed rabies vaccine can mean restarting requirements, and a lapsed bordetella can sink a boarding reservation the week of a trip.
-
Share it with the householdWhoever drops the dog at daycare needs the same records you have. Proof of vaccination is a family document, not a phone-of-one document.
This is exactly the shape of problem Squirreld was built for: its Pets category stores each animal's records and certificate photos with dates and next-due dates, sends email reminders with a lead time you choose, and shares the whole file with your family — so whoever's at the kennel counter has the rabies certificate in hand. We've written a full walkthrough of the system in our guide to keeping pet vaccine records organized, and if you'd rather compare tools first, see our roundup of the best pet health apps.
One year of shots, a lifetime of receipts
The first-year puppy vaccination schedule looks intimidating, but it compresses into a pattern you can hold in your head: a DHPP combo shot around 6–8 weeks, again at 10–12 weeks, a final one at 14–16 weeks alongside rabies, boosters at roughly a year, then a relaxed 1-to-3-year rhythm for the rest of your dog's life — with non-core vaccines layered in wherever your dog's lifestyle demands.
Let your vet set the actual dates. Seriously — the ages in this guide are the typical pattern, and your puppy is not a typical pattern; they're a specific animal with a specific history in a specific county's rabies jurisdiction.
Your job is the other half: show up for every appointment in the series, ask which non-core vaccines make sense for how your dog actually lives, and walk out of every single visit with the record captured — photo taken, dates logged, reminder set. The shots protect your puppy. The records protect you from ever standing at a boarding desk at 7 a.m., on hold with a vet's office, while your weekend plans wag patiently at the end of a leash.
Common questions
-
What shots does a puppy need in the first year?Most puppies get a series of DHPP (distemper, hepatitis/adenovirus, parainfluenza, parvovirus) combo shots starting around 6–8 weeks and repeating every 3–4 weeks until 14–16 weeks, plus a rabies vaccine as required by local law. Depending on lifestyle, your vet may add non-core vaccines like bordetella, leptospirosis, Lyme, or canine influenza. Your vet sets the exact schedule for your puppy.
-
When can my puppy safely be around other dogs?Most vets advise waiting until 1–2 weeks after the final puppy shot in the DHPP series — usually around 16–18 weeks — before visiting dog parks or other high-traffic dog areas, because protection isn't reliable mid-series. Controlled socialization, like puppy classes that require proof of vaccination, is often encouraged earlier. Ask your vet what's appropriate for your area.
-
How much do puppy vaccinations cost?Costs vary widely by region and clinic, and the first year is the most expensive because of the repeated series. Many shelters, humane societies, and mobile clinics run low-cost vaccine days that can significantly cut the bill — just make sure you get a signed certificate or record for every shot, because you'll need that proof later.
-
How do I prove my dog is vaccinated years later?Keep your own record: photograph every vaccine certificate (especially rabies), log the vaccine name, date given, and next-due date, and store it somewhere you control rather than only in a vet's portal. Boarding kennels, groomers, daycares, and landlords routinely demand current proof, and requesting records from a previous vet can take days.
Every shot, every certificate, every next-due date — stored for winter, with reminders before anything lapses.
Start your pet's vaccine record