Can a vet clinic keep the animal until the owner pays?

No. The Veterinary Code of Ethics (CFMV Resolution 1.138/2016, art. 17, sole paragraph) forbids holding the patient as a guarantee of payment. The clinic releases the animal and collects the debt through legal means.

Is a vet clinic required to give an estimate?

Yes. Under the Consumer Defense Code, a service provider delivers a prior estimate with labor, materials, payment terms and dates (art. 40). Performing the service without an estimate and without express authorization is an abusive practice (art. 39, VI), unless the parties have a prior course of dealing.

How long is a vet estimate valid?

Unless agreed otherwise, 10 days from the date the owner receives it (CDC, art. 40, § 1). Once approved, the estimate binds both parties and only changes through a new negotiation (art. 40, § 2).

Can I charge a deposit to book a pet's surgery?

The deposit is provided for in the Civil Code (arts. 417 to 420) and is deducted from the total when the service takes place. The rule must be written in the estimate, approved in advance and be proportional, as the CDC requires.

How do I collect from an owner who did not pay the vet clinic?

Start with a reminder and a negotiation, without exposing the owner (CDC, art. 42). If that fails, a clinic that is a micro or small business can sue in the Small Claims Court for claims of up to 40 minimum wages (Law 9.099/1995, arts. 3 and 8).

Can a vet clinic post surgery prices on Instagram?

No. Art. 14 of the Code of Ethics, as amended by CFMV Resolution 1.675/2025, forbids posting on social media prices or price lists for surgeries and procedures that depend on a prior assessment of the patient. The price goes in the individual estimate.

Late payments at the vet clinic: approved estimate, deposit and collection within the rules

By Igor Costa · October 26, 2026 · 7 min read

A vet clinic cannot keep the pet until the owner pays: the CFMV Code of Ethics forbids it. What protects the cash comes before the procedure: a written, approved estimate, a deposit at approval and a notice when the cost goes above what was agreed. After discharge, collection needs proof and cannot embarrass the owner.

Why does the clinic's bill stay open after discharge?

Because the decision to pay happens at one moment and the bill closes at another. The owner approves the surgery over the phone, with the pet at risk. Days later, they get a bill larger than what they heard.

The most common paths to an open bill:

Verbal estimate. The amount was said at the front desk or on the phone, and no one kept a record of what was agreed.
Hospitalization that runs longer. The estimate covered two days, the pet stayed five, and the owner was not told on the third day.
An extra procedure. During surgery, something else came up. The veterinarian treated it, and the owner's approval was left for later.
Everything at discharge. With no deposit, the clinic finances the whole surgery until the day the pet goes home.
A shaken owner. Someone who loses the animal, or gets bad news, tends to put the bill off.

There is no public figure for late payments at Brazilian vet clinics. The table below uses an example to show the size of the problem at a clinic with 40 surgeries a month and an average ticket of R$ 1,800:

Unpaid surgeries (example)	Open amount per month	Open amount per year	With a 30% deposit collected up front
1 in 40 (2.5%)	R$ 1,800	R$ 21,600	R$ 15,120 per year
2 in 40 (5%)	R$ 3,600	R$ 43,200	R$ 30,240 per year
4 in 40 (10%)	R$ 7,200	R$ 86,400	R$ 60,480 per year

The deposit does not solve everything, but it takes 30% of the risk out of each surgery. And an owner who has already paid part of it has more reason to come back and pay the rest.

Can the clinic keep the pet until the owner pays?

No. The Veterinary Code of Ethics, CFMV Resolution 1.138/2016, is direct in art. 17, sole paragraph: holding the patient as a guarantee of payment is forbidden.

The same code has two other rules that apply to collection:

Formal consent. The veterinarian is liable for performing a professional act without the client's formal consent, except in imminent risk of death or permanent disability (art. 9, VII).
Emergency. The veterinarian may choose clients, but not in emergencies or when the animal's life is in immediate danger (art. 7, V). An owner who has not paid a previous bill can be refused elective care, but not emergency care.

The practical conclusion: the clinic's guarantee is not the animal. It is the paper, or the digital record, that shows what the owner approved beforehand.

What does a vet estimate need to include?

The estimate needs what the Consumer Defense Code requires. Under art. 40, it itemizes labor, materials and equipment, payment terms, and the start and end dates of the service. It is valid for 10 days unless agreed otherwise (§ 1). Once approved, it binds both parties (§ 2).

Performing the service without an estimate and without express authorization is an abusive practice under art. 39, VI, unless the parties have a prior course of dealing.

This is an example of a spay estimate, with the fields the CDC asks for:

Estimate item (example)	Amount
Pre-anesthetic consult and tests	R$ 280
Anesthesia	R$ 450
Surgery (team fees)	R$ 700
Materials and medications	R$ 250
Hospitalization, 1 day	R$ 150
Total	R$ 1,830
Deposit at approval (30%)	R$ 549, deducted from the total
Balance	R$ 1,281 at discharge, by Pix or card
Valid for	10 days
Planned date	Surgery on 04/11, discharge planned for 05/11

Two CFMV rules go along with the estimate:

The consent form is a separate document. CFMV Resolution 1.321/2020, art. 10, lists the consent forms, such as those for surgery, anesthesia and hospitalization. § 1 makes the act conditional on presenting the form in advance and on the owner's signature. The estimate covers money; the form covers risk. Both are approved beforehand.
Prices do not go on social media. Art. 14 of the Code of Ethics, as amended by CFMV Resolution 1.675/2025, forbids posting prices or price lists for surgeries that depend on a prior assessment. The price comes in each patient's estimate.

How do you collect the deposit and the balance without losing the owner?

Set the rule in the estimate and charge at the moment the owner decides. A policy that fits in four lines, as an example to adapt with your lawyer:

Deposit at approval. An elective surgery is booked with a 30% deposit, deducted from the total.
Hospitalization with a cap. The estimate shows the daily rate and the planned number of days. If the stay goes past that, the owner gets an update and approves the new amount.
Extra procedure, new approval. Outside an emergency, anything not in the estimate only goes ahead with the owner's approval on record.
Balance at discharge. Pix or card, with installments agreed in the estimate.

Item 2 prevents the most conflict. An owner who follows the bill during the hospitalization is not shocked at discharge. And under art. 40, § 2 of the CDC, the estimate only changes through a new negotiation. The approved update is that negotiation.

What should you do when the owner does not pay?

Follow a collection schedule, from the lightest contact to the most formal, and keep proof of each step. Under art. 42 of the CDC, collection cannot expose the owner to ridicule or embarrass them.

When (example)	What to do
On the due date	Reminder with the amount, the payment link and the approved estimate
7 days later	Contact from a person, with an installment offer
30 days later	Written notice, with a deadline to pay
After that	Lawsuit or protest of the debt, with legal advice

To sue for a small amount, a micro or small business can use the Small Claims Court (Law 9.099/1995, art. 8, § 1, II). It accepts claims of up to 40 minimum wages (art. 3, I). Up to 20 minimum wages, the party can file without a lawyer (art. 9).

Proof decides the case. In a May 2026 news release, the TJMG reported that it upheld a ruling against a clinic. The clinic had filed a protest against the owner over installments for a spay. The court found that the surgery failed and that, with the failure, the debt was no longer enforceable. The clinic argued that it stopped the procedure because of an emergency. The case shows that the record, the consent form and the estimate are the clinic's defense, and not only for collection.

How CERNE solves it

CERNE puts the estimate, the consent form and the deposit in the same link, and ties the hospitalization bill to what was approved.

Estimate and consent form by link. The veterinarian builds the surgery estimate. The owner gets the link, reads the form and approves, and the approval is recorded with date and time.
Pix deposit in the same link. The owner pays the deposit when approving, and the surgery moves to "Scheduled".
Hospitalization bill kept up to date. Each medication and each day goes into the discharge bill. The owner gets the update approved by the veterinarian, with news about the pet.
Collection with an owner. The open bill becomes a front desk task, with a deadline and a person responsible.
Direct question. In the AI assistant, management asks "which October discharges still have an open balance?". The answer comes with the operation's data.

A consent form recorded through the link keeps the text, date and time of approval. Since Resolution 1.321/2020 refers to a signature, check with your CRMV and your legal team which format is accepted for each form. See the workflows on the vet clinics page and the cards for each function. What goes in the record and in each consent form is in veterinary medical records.

Start with an assessment

The tables in this article use example numbers. Your clinic's tables use your discharges and your estimates. Start with an assessment of your operation: our team measures how much stays open and builds the estimate, deposit and collection schedule with you. Book the assessment.

Frequently asked questions

Can a vet clinic keep the animal until the owner pays?: No. The Veterinary Code of Ethics (CFMV Resolution 1.138/2016, art. 17, sole paragraph) forbids holding the patient as a guarantee of payment. The clinic releases the animal and collects the debt through legal means.
Is a vet clinic required to give an estimate?: Yes. Under the Consumer Defense Code, a service provider delivers a prior estimate with labor, materials, payment terms and dates (art. 40). Performing the service without an estimate and without express authorization is an abusive practice (art. 39, VI), unless the parties have a prior course of dealing.
How long is a vet estimate valid?: Unless agreed otherwise, 10 days from the date the owner receives it (CDC, art. 40, § 1). Once approved, the estimate binds both parties and only changes through a new negotiation (art. 40, § 2).
Can I charge a deposit to book a pet's surgery?: The deposit is provided for in the Civil Code (arts. 417 to 420) and is deducted from the total when the service takes place. The rule must be written in the estimate, approved in advance and be proportional, as the CDC requires.
How do I collect from an owner who did not pay the vet clinic?: Start with a reminder and a negotiation, without exposing the owner (CDC, art. 42). If that fails, a clinic that is a micro or small business can sue in the Small Claims Court for claims of up to 40 minimum wages (Law 9.099/1995, arts. 3 and 8).
Can a vet clinic post surgery prices on Instagram?: No. Art. 14 of the Code of Ethics, as amended by CFMV Resolution 1.675/2025, forbids posting on social media prices or price lists for surgeries and procedures that depend on a prior assessment of the patient. The price goes in the individual estimate.

CERNE for Veterinary clinics. Schedule, records, vaccines, inpatient care with owner updates, POS, inventory and invoicing in one system. AI works inside the operation, and a team works alongside your management. See how it works or start with an assessment of your operation.

Sources

Igor Costa · Partner at IF Soluções, with more than 10 years in communication and process auditing. At CERNE, leads each client's assessment: follows the operation, maps where time and money are lost and decides which workflows to digitize first. Followed the rollout at Ammo Burger, EClub and Avittá.