The homeowner pays. An emergency vet bill run up during an Australian house sit belongs to the person who owns the animal, not to the sitter standing at the counter, because the owner is the one whose consent a vet needs and the one the clinic treats as its client. What the sitter needs from you before you leave is three things in writing: authority to present your pet for treatment, a dollar figure they can approve without reaching you, and a named person who can decide if your phone is off.
Sits where this becomes a crisis are almost always sits where one of the three was never written down. Search it from Australia and the substantive answers come back American, written around American clinics and American consent forms.
General information only
This is general information, not veterinary, legal or insurance advice. Animal welfare law differs between states and territories. Ask your own vet about your animal, your insurer about your policy, and your state or territory animal welfare regulator about your obligations.
The owner is the decision maker, and the sitter is not
The Australian Veterinary Association's contextualised care policy sets the expectation for the profession: veterinarians should respect owners' legal role as decision makers providing consent, and advise clearly on each option and its cost. A clinic will look for you, not for the person who carried your dog in.
What transfers to a sitter is daily care. Queensland's guidance on who counts as a person in charge of an animal covers anyone with custody, care or control of it, and every state and territory has its own version of that duty. It obliges your sitter to get an unwell animal help. It does not make them the vet's client or your pet's guarantor. The sitter carries the duty to act, you carry the decision and the bill, and the written authority is what joins the two while you are over the Pacific.
Write the authority on one page before you go
The RSPCA advises organising at least one emergency contact who can act when you cannot reach your home, and publishes a free Emergency Animal Authorisation Form authorising a named person to enter your home and make decisions for your animal, veterinary care included. It was written for floods and bushfires, so use it as the skeleton and add the fields below.
| Field | What to write | What it prevents |
|---|---|---|
| Pet identity | Name, species, breed, age, weight, desexed or not, microchip number and registry | A guessed drug dose, and a dead end if your pet is scanned |
| Health summary | Medications and doses, allergies, chronic conditions, recent surgery | An anaesthetic given without the history |
| Regular vet | Clinic, phone, address, hours, whether you hold an account | Searching for a vet at 11pm |
| After hours clinic | The nearest 24 hour hospital and the drive time from your door | Learning on the night that it is 40 minutes away |
| Authority to treat | One sentence naming the sitter and the dates, authorising them to present your pet for treatment in your absence | An argument at reception about who this person is |
| Spending ceiling | A figure the vet may proceed to without reaching you, and what to do above it | A vet stalled on hold while an animal deteriorates |
| Contact order | Your mobile, a second number, then a backup who has said yes | Everything stopping when your phone is off |
| Payment method | Clinic account, a card you authorise by phone, a backup who can attend, or reimbursement terms | A deposit your sitter cannot meet |
| End of life instruction | Whether you want contact before any euthanasia decision, and who decides if you cannot be reached | The heaviest decision falling to someone who never agreed to it |
| Insurance | Insurer, policy number, claims line, and that the claim is yours to lodge | A sitter assuming the insurer pays the clinic |
Sign it, date it, and give a copy to the sitter and to your backup. It belongs with everything else you put in writing, which our house sitting agreement guide sets out.
A record, not a contract
An authority you write yourself is a record of your instructions. It is not a binding contract and does not oblige a clinic to do anything. Its value is practical. It tells a sitter and a vet what you want, in writing, when nobody has time to work it out.
Set the ceiling above one night of stabilisation, not below it
There is no standard figure, and anyone quoting you one is guessing. The ceiling has a narrow job: let a vet start without a phone call. That covers the consultation, imaging or bloods, pain relief, and stabilising the animal overnight.
Ring the clinic you would actually use, ask what an after hours consultation and a night on fluids comes to, and set your figure above that. Christmas is peak sitting season and thin veterinary season at once, so check your clinic's holiday dates before you write them down.
For scale, PetSure's 2025 Pet Health Monitor, drawn from claims across around 700,000 insured pets, reported dog claims above $61,000 for lymphoma and above $57,000 for tick paralysis. Outliers, not typical bills, but wide enough that a $500 ceiling deserves a second thought. Distance moves it too: three weeks off the grid in the Kimberley argues for a higher figure and an empowered local backup, four nights in Geelong argues for less.
An emergency clinic will expect payment before you are home
Owners picture the vet quietly billing them afterwards. That happens at a practice you have used for a decade. At an emergency centre at midnight it usually does not. Animal Emergency Service sets out the shape of the bill on its fees page: an estimate first, the consultation fee due at the end of the consultation, a deposit covering the estimated hospital stay on admission, the balance on collection, and a public holiday surcharge. Your sitter is in an unfamiliar suburb with your dog, being asked for money nobody warned them about.
- Pre-authorise with your own clinic. Give them the sitter's name and dates, and ask whether they will hold a card on file.
- Ring the after hours hospital too. Some will note the authorisation against your pet's record.
- Nominate a local backup who can pay. Someone in the same suburb removes the problem outright.
- Keep the clinic's number in your own phone. Most will take a card payment from an owner over the phone.
- Never send card details through messages. Reimburse by bank transfer, on a timeframe agreed before the sit.
Pet insurance does not change who pays on the night. ASIC's Moneysmart guidance on pet insurance is blunt: most insurers make you pay the vet in full and claim afterwards, with the annual limit, waiting periods and exclusions all in the product disclosure statement. Whether a policy responds while someone else is minding the animal is covered in our guide to pet insurance in someone else's care.
When you are on a flight, the backup decides
The fourteen hours between Sydney and Los Angeles is the window in which this goes wrong, and the answer is a person, not a policy.
Name a backup, ask them first, and give them the same page you gave the sitter. Put their number under yours in the contact order, tell the clinic they exist, and give both your flight numbers and the hours you are unreachable. Without a backup, a clinic falls back on its own clinical judgement inside whatever it has in writing, usually stabilising the animal and managing pain until somebody answers. That may not be what you would have chosen, and it leaves your sitter holding a decision they never agreed to.
If you are the sitter and the phone is going to voicemail:
- Act on the animal first. Animal Emergency Service lists the signs that need a vet immediately, including difficulty breathing, collapse, seizures, suspected poisoning and repeated vomiting. Ring the clinic from the car.
- Read the authority out at reception, with the owner's name, the dates and the ceiling.
- Photograph the estimate and send it to both numbers.
- Above the ceiling, ask the vet to stabilise and manage pain while you keep trying.
- Keep every invoice, and note times, symptoms and who you spoke to.
You are not obliged to spend your own money. If you cannot front a deposit, say so at the start of the conversation with the clinic, not the end.
No Australian platform pays the bill on the night
Worth knowing before you assume a marketplace stands behind the arrangement. Checked 22 August 2026:
| How you found the sitter | What exists for an emergency vet bill | What you still do on the night |
|---|---|---|
| Non-monetary exchange platforms, Sitterly included | Nothing. No money changes hands for the sit and the platform holds no funds, so there is no pool to draw on | Pay the clinic, or reimburse a sitter who fronted it |
| Mad Paws, a paid platform | A guarantee capped at $8,000 with a minimum contribution of $350, paying only in excess of any other insurance | Pay at the counter, then claim |
| Pawshake, a paid platform | A guarantee capped at $2,500 with a $250 excess, always secondary to any other insurance | Pay at the counter, then claim |
| Your own pet insurance | Reimbursement of eligible costs, after the excess and inside the annual limit | Pay in full and lodge the claim yourself |
Read the two paid platforms as offering guarantees, not insurance, because that is how they are written. Mad Paws' guarantee page states in capitals that the guarantee is not insurance and names no underwriter, while two other live Mad Paws pages describe insurance being provided. Both were on their site on 22 August 2026, and the practical point survives either way: the money leaves your account first.
Sitterly is in the exchange half and does not pretend otherwise. It is free for homeowners, holds no funds, provides no insurance, supervises no sits and mediates no disputes, as how it works sets out. Sitterly supports the connection, and homeowners and sitters remain responsible for their own arrangements. That is why one page of written instructions carries more weight here than a policy document would, and why our guide to when a pet sit goes wrong is about escalation rather than compensation.
Sitters, ask for it. Before accepting a sit from the listings, ask what the homeowner has written down about vet emergencies, and ask for a copy.
Common questions
- Can my sitter authorise surgery on my pet?
- In practice a vet will want the owner's consent for a significant procedure and will try hard to reach you. A written authority lets a clinic move quickly on stabilisation, pain relief and diagnostics, and gives it something to act on if you truly cannot be reached. It does not replace your consent for a major decision.
- Should I give my sitter my credit card details?
- No. Pay the clinic by phone yourself, arrange a card on file in advance, or nominate a local backup who can pay. If your sitter does pay, reimburse by bank transfer, on terms agreed in writing beforehand.
- Does Sitterly pay for, insure or arrange any of this?
- No. Sitterly helps homeowners and sitters find and message each other. It does not provide insurance, hold funds, supervise sits or mediate disputes, so the veterinary arrangement is entirely between the two of you.
Post a listing, free
Write the authority tonight, then put your home in front of sitters who can read it. Listing on Sitterly is free for homeowners and always will be, and the vet, the after hours clinic and the ceiling belong in a first conversation rather than a last one. Post a listing, free.
General information only, not veterinary, legal, insurance or financial advice. Speak to your veterinarian about your animal and to your insurer or your own adviser about your policy. Sitterly is not a party to arrangements between its members.
