The New Puppy First-30-Days Checklist

Phase 0 — Before they come home

The only phase still fully in your control. If the puppy is already asleep on your foot, start at Phase 1 and come back.

• Book the vet today — not on day one. Good clinics are often booking weeks out, and you want visit #1 inside 72 hours of homecoming. Ask for a "new puppy exam." If the first slot is three weeks away, take it and ask who covers their emergencies.
• Put two numbers in your phone now: your vet, and the nearest 24-hour emergency vet. Add ASPCA Poison Control — (888) 426-4435, which the ASPCA says is staffed 24 hours a day, 365 days a year (it notes a consultation fee may apply). You do not want to be searching for these at 2am.
• Get the paperwork before you get the puppy: date of birth, vaccines given and when, deworming dates, microchip number, current food. A seller who won't hand this over is telling you something.
• Buy the food they're already on — same brand, a week's worth. A new home is enough change on its own. Talk to your vet before you switch food.
• Crate: buy the adult-size one, with a divider. The AKC's sizing rule is that the crate should be "just large enough for the dog to lie down, stand up, and turn around" — and it warns that if the crate is too large, "the dog will feel that it's OK to use one corner for elimination and then happily settle down away from the mess." Block the back off with the divider and move it forward as they grow: one purchase instead of two, and no spare corner to use as a toilet.
• Puppy-proof at eye level — get on the floor and actually do it. Standing up, you'll miss most of this. On your hands and knees you'll find: charging cables, power strips, cords dangling from blinds, shoes, socks, hair ties, coins, batteries, small kids' toys, the handbag with painkillers in it, the open bin, the cupboard under the sink, the gap behind the couch, the space under the bed, an open toilet, an ungated staircase, and every houseplant you own.
• Check your plants and your food against the ASPCA's lists — don't trust your memory. The ASPCA publishes a searchable toxic and non-toxic plant list for dogs, and ASPCA Poison Control names people foods to avoid — among them chocolate, coffee and caffeine, grapes and raisins, onion, garlic and chives, macadamia nuts, avocado, alcohol and yeast dough, and xylitol (the sweetener in most sugar-free gum). Move them up, out, or behind a latch.
• Agree the house rules out loud, before the dog arrives. Couch? Bed? Who does the 2am trip? Who feeds, and how much? Write the answers on the fridge next to this page. Renegotiating with a dog does not work — they aren't being difficult when they get on the couch, they're following the rule the softest person in the house taught them.
• Sort insurance before homecoming. The AKC is blunt about why the timing is everything. Pre-existing conditions, in its words, "are not usually covered by insurance, and they include any illness or injury that occurred or reoccurred, existed or showed symptoms, whether diagnosed by a veterinarian, prior to enrollment or during the waiting period of the insurance policy." Read that again: the clock starts when something is noticed, not when it's diagnosed. Enrol while there is nothing to notice, and read how your policy defines "pre-existing" before you buy. That definition is the product.
• Night-one gear: crate + divider, bedding you won't mourn, their current food, two bowls, flat collar with an ID tag, 6ft lead, harness, poop bags, an enzymatic pet cleaner (buy the big bottle), a few chew toys, a baby gate.
  Week-three gear: the nice bed, the coat, the long line, the grooming kit, everything that made the shop look fun. Your puppy has no taste yet — and in three weeks you'll know what they actually chew.
• ID tag with your number, and register the microchip to you. A chip is only as good as the phone number attached to it. The AVMA puts the failure mode plainly: "For microchipped animals that weren't returned to their owners, the most common reason was an incorrect or disconnected owner telephone number in the microchip registry database." So: ask who the chip is currently registered to, move it into your name, and check the number is one that rings. AAHA's Microchip Registry Lookup Tool tells you which registry a chip is in.
• Take time off if you possibly can. The first 72 hours set the tone for everything after them. If you can't, arrange midday cover before the puppy arrives — not in a panic on day two.
• The crate goes beside your bed on night one. Not the kitchen. Not "so they learn." Beside your bed, where you can drop a hand down. You can move it later.

Phase 1 — Days 1 to 3: survival

The goal is not training and it is not bonding. It is: everyone gets through it, and the puppy learns this place is safe. Lower the bar and keep it there.

• The car ride. Two people if you can — one drives, one holds them (or a secured crate with a towel in it). Bring paper towels; they may be sick. It's a small animal in a loud metal box, leaving its entire family.
• The first hour. Car straight to the toilet spot, on the lead. Stand there. Say nothing. Wait — it can take several minutes. When they go, praise them like they've done something extraordinary; for the next four weeks, they have. Then inside, to one room. Not the tour of the house.
• Do not throw a party. No visitors for a few days. A puppy that has just lost its mother, its littermates and every smell it has ever known does not need eleven strangers on day one.
• Night one, honestly: they will cry. Crate beside your bed, hand near the door. Expect to be up at 2am and again at 5am, outside in the dark in your dressing gown, wondering what you have done.

  What "bad" actually looks like, so you recognise it: twenty to forty-five minutes of crying before they settle. Waking once or twice. An accident in the crate. A puppy who won't settle unless they can hear you. All of this is normal. It is not evidence that you have made a mistake, picked the wrong dog, or are bad at this. It usually eases within a handful of nights. And don't put them in a separate room to "teach independence" — this week you're teaching the opposite: that when they are alone and afraid, someone comes.

• Toilet trips: on waking, after eating, after play, every couple of hours between. The AKC calls it the month-plus-one rule: "Take the age of your puppy in months and add one, and that is the maximum number of hours that your puppy should be able to comfortably hold it between potty breaks." For an eight-week-old, that is a very short number. Out the moment they wake, within 5–30 minutes of a meal, after every burst of play. Set an alarm — you won't remember, because you haven't slept.
• Accidents happen. Don't punish them. Interrupt gently, carry them outside, praise if they finish there, clean up with an enzymatic pet cleaner. Punishing a puppy for weeing on the floor teaches them to wee where you can't see them — a much harder problem than the one you started with.
• Vet visit #1, inside 72 hours. Bring the paperwork and a fresh stool sample. Write your questions down first: the vaccination and deworming schedule for this puppy; when and where they can safely meet other dogs; how much food, how often; when to discuss neutering; when you're next due. Write the answers down too — you're on four hours' sleep and will not retain a word.

Phase 2 — Days 4 to 14: the window that closes

If you act on one page of this document, make it this one. Everything else here you can catch up on. This you cannot.

• Socialization — the clock is already running. The American Veterinary Society of Animal Behavior (AVSAB) puts it plainly in its position statement on puppy socialization: "The primary and most important time for puppy socialization is the first three months of life." AVSAB also notes that behavioral problems are the number one cause of relinquishment to shelters, and that "behavioral issues, not infectious diseases, are the number one cause of death for dogs under three years of age."

  The window closes around 16 weeks and it does not reopen. Most owners find out at five months, from a trainer, once the fearfulness has already set in. It is the most time-critical thing in this document, it costs nothing, and almost nobody tells you in time. We are telling you in time.

• "But they aren't fully vaccinated yet." Ask your vet — and know what AVSAB says. Here is the trap: the socialization window closes before the vaccination course finishes, so "wait until they're fully vaccinated" quietly costs you the window. AVSAB's position is that "puppies can start puppy socialization classes as early as 7-8 weeks of age," and that they "should receive a minimum of one set of vaccines at least 7 days prior to the first class and a first deworming." Take that to your vet and ask what's right for your puppy, where you live. They know the local disease picture; we don't.
• Safe exposure while you wait for full cover. Carry them. Sit on a bench and let the world walk past. Let them watch from the car. Have a friend's healthy, fully-vaccinated, puppy-tolerant adult dog visit your home. New surfaces indoors — tile, rug, wood, something wobbly. New sounds — vacuum, hairdryer, doorbell, washing machine. New people — hats, beards, umbrellas, hi-vis, walking sticks, wheelchairs, children. Sit in the vet's car park handing out treats, so the building means something good.
  Avoid until your vet clears you: dog parks, unknown dogs, heavily-used public grass, anywhere a sick dog is likely to have been.
• Keep an actual tally — on paper, on this page. A handful of new people, surfaces and sounds every week, counted. "We're doing plenty" is what everyone says, and it's almost always wrong. End every exposure calm: if they freeze, hide, or won't take a treat, you've gone too fast — more distance, less noise, try tomorrow. Frightening a puppy is worse than doing nothing.

  New people: ☐☐☐☐☐☐☐☐☐☐   New surfaces: ☐☐☐☐☐☐☐☐☐☐   New sounds: ☐☐☐☐☐☐☐☐☐☐

• Start alone-time training now, in absurdly small doses — before you need it. Ten seconds behind a door. Then thirty. Then two minutes while you make coffee. Come back before they panic, not after. Do this in week two, when they're glued to you and you don't need it, and you're far less likely to be the person googling "separation anxiety" in month six.
• Make the crate the best place in the house. Feed every meal in it, door open. Drop treats in when they aren't looking, so they find them. Never use it as punishment. A dog who loves their crate is a dog you can take to the vet and the groomer without terror.
• Teach two things only: their name, and "sit." Say the name once, they look, they get a treat — that's the whole exercise. Thirty times a day, five seconds each. Everything else can wait. You are not behind.
• The biting. Yes, it's like this for everyone. Nearly every new owner privately believes their puppy is unusually bitey. Redirect onto a chew toy; when teeth touch skin the game ends — stand up, walk away, every time, no drama. If it escalates or breaks skin, that's a conversation for your vet and a qualified trainer, not something to grit your teeth through.
• Sleep: they need far more than you think. An overtired puppy doesn't act tired — it acts possessed. When the 7pm chaos starts, the answer is usually a nap in the crate, not another walk. Try sleep before you try more exercise.
• The vaccination and deworming schedule comes from your vet — we don't publish one. The reference most US clinics work from is the 2022 AAHA Canine Vaccination Guidelines (updated 2024). Read it for background if you like, but the schedule for your puppy comes from the person who has examined your puppy.

Phase 3 — Days 15 to 30: the routine, and the wall

• Build the rhythm and keep it boring. Same wake-up, meals, naps, toilet trips, one short training session, same wind-down. Predictability settles a puppy far more than exercise or attention do.
• First walks — once your vet has cleared them — and keep them short. A pavement is a firehose of new information for a brain that size. Five minutes sniffing one hedge is a big walk, and it'll tire them more than a mile of marching.
• Meeting other dogs: choose the dog, not the dog park. One calm, vaccinated, puppy-tolerant adult at a time, somewhere quiet. A dog park is a room full of strangers with unknown histories, and a bad experience in this window can stick for years.
• Book the groomer and the trainer now, before you need them. The good ones book out, and you don't want to be finding a trainer in the middle of the problem you hired them to fix. Meanwhile practise handling daily — paws held, ears looked in, mouth opened, nails touched with the clippers without cutting. Thirty seconds, then a treat. Your groomer will be able to tell.
• Sort your fallbacks while they're still hypothetical: the 24-hour emergency vet (Phase 0), and who takes the dog if you're stuck at work, ill, or your flight is cancelled. Ask that person now.
• The 30-day check-in — what "on track" actually looks like. Not perfect. On track:
  • Sleeping most of the night, maybe one wake-up.
  • Fewer accidents — not zero. Most puppies aren't fully house-trained for months.
  • Goes into the crate voluntarily, at least sometimes.
  • Turns their head to their name, most of the time.
  • Has met a decent number of new people, surfaces and sounds — with the ticks on this page to prove it.
  • Still bites. Yes. Still. That is normal at 30 days.

  Tick most of that and you are doing this well — better than you feel, because nobody feels like they're doing it well at day 30. And if you can't tick it: that is not a verdict on you. Call your vet, and get a qualified trainer in early. Early is cheap. Month eight is not.