Aug 24, 2026

Denver's Dog Fines, Published: $80 for a Leash, $250 for an Unneutered Dog

Denver publishes a table of dog fines running from $50 for a missing rabies tag to $999 for cruelty. The number that surprises visitors is $250 for a first sterilisation violation, and two lines come with a full reduction for fixing the problem quickly.

Luis ZamoraCo-founder of PetCompass; Dog Dad to Banzo and Tuck

Denver, Colorado9 min readPet Care & Services

Most cities make you guess what a dog ticket costs. Denver publishes a table.

It runs from $50 for a missing rabies tag to $999 for cruelty, and the number that surprises visitors is not the leash fine. It is $250 for a first spaying and neutering violation, because Denver requires dogs over six months old to be sterilised and treats a failure to do so as an offence in its own right.

Here is the whole schedule, what each line means in practice, and the two discounts the city offers for fixing the problem quickly.

The published fine schedule

From the city's administrative citations page, showing first, second and third or subsequent violation.

Violation	1st	2nd	3rd and after
Leash Law	$80	$150	$300
Disposition of Excrement	$150	$250	$500
License Required	$75	$100	$200
Failure to attach license tag	$50	$75	$100
Rabies Vaccination Required	$100	$250	$500
Failure to display rabies vaccination tag	$50	$75	$100
Spaying and Neutering	$250	$550	$900
Barking Dog	$125	$200	$300
Interference with a Denver Animal Protection employee	$125	$200	$300
Keeping Wild or Dangerous Animals Prohibited	$200	$500	$700
Neglect of Animals Prohibited	$200	$500	$700
Cruelty to Animal Prohibited	$300	$700	$999

The city notes that second and third offences are "based on violations within 12 months of the prior violation", so the clock is rolling rather than lifetime.

The two discounts, which are worth knowing on the day

Denver offers a full reduction for prompt compliance on two specific lines, and the wording is precise.

Rabies: "If compliance is demonstrated within 10 calendar days of a 1st violation only the penalty is reduced by 100% for rabies vaccination violations."

Spay and neuter: "If compliance is demonstrated within 20 calendar days of a 1st violation only the penalty is reduced by 100% for spay and neuter violations."

Both apply to a first violation only. Compliance documentation goes to Denver Animal Shelter at 1241 W. Bayaud Ave., Denver, CO 80223, or by email to the address the city publishes on that page.

What that means practically. A first rabies ticket is effectively a deadline rather than a fine, if you act inside ten days. The same for sterilisation inside twenty. Miss the window and the $100 or the $250 stands.

The sterilisation rule behind the biggest number

Denver's animal ordinances page states it in one line: "Denver requires any dog or cat over the age of 6 months to be spayed or neutered. An intact permit allows an exception to this rule."

The permit is not a light-touch alternative. The city's own conditions include:

an inspection of the property where the animal is kept
proof of current rabies vaccination from a licensed veterinarian, plus annual vaccines, "For dogs: distemper and parvovirus"
a current City of Denver dog or cat licence, and "Proof of a current rabies vaccination is required to purchase a city license"

It also sets out when an application will be refused, including two Chapter 8 violations in the preceding 24 months, a history of bites or attacks, a dog that has been running at large or impounded, and a property that is "at an apartment complex, duplex, etc. and/or yard is a communal or shared yard."

The city adds a policy limit: "only one intact permit is allowed per residence for animals of the same species, even if they are the same sex."

Because the permit needs a property inspection, it is a resident mechanism. A visitor with an intact dog cannot obtain one for a weekend, which is why our reading is that an unsterilised visiting dog should stay out of the city's dog parks, where sterilisation or a current Denver Intact Permit is an entry condition.

Our spaying and neutering your pet guide covers the decision as the veterinary question it is, rather than as a legal one.

Tags, licences and the difference between them

Four separate lines in the fine table cover paperwork, and they are not the same thing.

License Required, $75. A Denver dog licence.

Failure to attach license tag, $50. Having the licence but not the tag on the dog.

Rabies Vaccination Required, $100. The vaccination itself.

Failure to display rabies vaccination tag, $50. Having the vaccination but not the tag on the dog.

That distinction shows up again in Denver's dog park rules, which require "current rabies vaccination tags issued to the particular dogs, which tags must be attached to the dogs' collars or harnesses". The paperwork in the car is not what the rule asks for.

The intact permit requirements also mention the city licence fee structure as "$15 one year, $40 for three years, and $150 for lifetime license".

For a visiting dog, the licence line is the one we cannot resolve, and we would rather say so. Denver's published dog park rules require a Denver dog licence, and the pages we read do not address a dog visiting from another state. That is a question for Denver Animal Protection on 3-1-1, or (720) 913-1311 from outside the city, rather than something to assume.

Our pet health and vaccination tracker keeps the rabies record in one place, and our pre-travel pet checklist covers what to physically carry.

The leash line, and why $80 is not the real cost

A first leash-law violation is $80, a second inside twelve months is $150, and a third or subsequent is $300.

For most dogs that is the whole story. For one group of dogs it is not.

Denver requires a Breed-Restricted Permit for American pit bull terriers, American Staffordshire terriers and Staffordshire bull terriers, and the permit runs on a three-year clean-record clock. The city lists "Off-leash charge" first among the examples of violations that reset it, alongside a lapsed permit charge, an excrement charge, a bite charge, an excessive barking charge and dangerous-animal charges. Details on the city's Breed-Restricted Permits page, which also states that a visiting dog of those breeds needs a permit to be within city and county limits at any time.

So an $80 ticket can cost a permitted owner three years of renewals at $30 each. That is the reason to be scrupulous rather than casual about the lead.

Waste, at $150

The excrement line is nearly twice the leash line, which tells you what the city cares about.

Denver's dog park rules require that excrement "must be promptly and completely picked up and properly disposed of by the person or persons who brought or allowed the animal into the facility", and the city notes on the same page that "Dog bag dispensers are available at all dog parks."

There is no ambiguity to work with here, and at $150 for a first violation it is the cheapest rule in the city to obey.

Barking, at $125

A barking dog citation starts at $125 and rises to $200 and $300. Denver runs a specific complaints process for it, separate from general animal calls.

Which is worth knowing if you are staying in an apartment or a hotel with a dog that objects to corridor noise. Our dog separation anxiety guide covers the underlying problem, and our questions to ask before booking a pet-friendly hotel guide covers asking whether the dog may be left in the room at all, which is where most barking complaints start.

Cruelty and neglect, and the weather rule attached to them

The two highest lines in the table are cruelty, at $300 rising to $999, and neglect, at $200 rising to $700.

Denver ties both to weather explicitly. Its seasonal pet safety page states that failing to protect pets from the elements "could have dangerous consequences for pets and lead to a Cruelty to Animals or Animal Neglect charge, up to a $999 fine and/or a year in jail for the owner."

It also states the shelter requirement: city ordinance "requires pets have adequate outdoor shelter such as a doghouse, porch area, or a similar structure that allows the animal to escape the elements."

And on cars: "Temperatures inside a vehicle can reach 120°F in a matter of minutes, even if temperatures are mild and windows are open." Our summer heat safety for pets guide covers the surface test and the early warning signs.

How a citation works

Payment is online through the city's citation page, and the city notes a 2.5% service fee for credit and debit card transactions from 1 May 2025, with no fee for cash, business cheque or money order.

The route for questions or reports is 3-1-1 inside Denver, (720) 913-1311 from outside, and Denver Animal Protection officer dispatch on 720-913-2080. Emergencies are 9-1-1.

Conclusion

Denver publishes its dog fines, which is more than most cities do, and the schedule tells you exactly what the city is trying to prevent: unsterilised dogs at $250, waste at $150, barking at $125, loose dogs at $80.

Two of those lines come with a full reduction if you fix the problem inside ten or twenty days. One of them, the leash line, quietly costs far more than $80 if your dog holds a Breed-Restricted Permit.

Frequently asked questions

How much is a leash-law fine in Denver?

$80 for a first violation, $150 for a second within 12 months, and $300 for a third or subsequent violation.

How much is a dog waste fine in Denver?

$150 for a first violation, then $250 and $500. Denver calls the line Disposition of Excrement.

Does Denver require dogs to be spayed or neutered?

Yes. The city requires any dog or cat over the age of six months to be spayed or neutered, with an intact permit as the exception. A first violation is $250, rising to $550 and $900.

Can the spay and neuter fine be reduced?

Yes, for a first violation. The city states the penalty is reduced by 100% if compliance is demonstrated within 20 calendar days of a first violation.

Can a rabies fine be reduced?

Yes, on the same basis. Compliance within 10 calendar days of a first violation reduces the penalty by 100%.

Why are there separate fines for a licence and a licence tag?

Because they are separate obligations. License Required is $75 for a first violation and Failure to attach license tag is $50, and the same split applies to rabies vaccination at $100 and displaying the rabies tag at $50.

Sources

Fines and rules change. Confirm with Denver Animal Protection before you rely on any of it.