The average dog in Australia costs around $31,000 over its lifetime. The average cat? About $21,000. That $10,000 gap is roughly a year of groceries for one person โ and it's just the starting point.
But cost alone shouldn't decide this. A cheap pet you're not suited for will cost you more in the long run (surrendered pets, behavioural issues, vet bills from neglect). So here's the real breakdown, category by category, so you can make a decision based on actual numbers rather than guesswork.
How Much Does It Cost to Buy a Cat vs a Dog?
The purchase price gap is immediate and obvious.
| Dogs (Average) | Cats (Average) | |
|---|---|---|
| Breeder price | $3,800 | $2,080 |
| Adoption price | $200โ$550 | $50โ$350 |
Dogs cost about $1,700 more from a breeder. But the range within each species is enormous. A Jack Russell Terrier from a registered breeder runs $1,500โ$3,000, while a Cavoodle โ Australia's most popular breed โ sits at $3,500โ$7,000. On the cat side, a Bengal will set you back $3,000โ$6,000, but a Domestic Shorthair from a shelter costs $50โ$150.
Adoption slashes the price for both. The RSPCA and local shelters typically charge $200โ$500 for dogs (covering desexing, vaccinations, and microchipping) and $50โ$350 for cats.
How Much Does Pet Food Cost Per Month?
Dogs eat more. That shouldn't surprise anyone, but the monthly difference adds up.
| Dogs | Cats | |
|---|---|---|
| Budget | $50โ$80/mo | $35โ$50/mo |
| Mid-range | $88/mo (avg) | $61/mo (avg) |
| Premium | $120โ$200/mo | $80โ$120/mo |
At mid-range quality, dogs cost about $27 more per month in food. Over a dog's average 12.9-year lifespan, that's roughly $4,180 more just in kibble and wet food.
Size matters here. A Rottweiler eats $140/month at mid-range. A Toy Poodle eats $55/month โ less than most cats. So if you're set on a dog but want lower food bills, smaller breeds close the gap.
Is Pet Insurance Cheaper for Cats or Dogs?
Yes. Noticeably.
| Dogs (Monthly Avg) | Cats (Monthly Avg) | |
|---|---|---|
| Insurance | $60/mo | $35/mo |
That's $25/month less for cats, or $300/year. Over a cat's longer average lifespan of 14.9 years, you'll spend about $6,258 on cat insurance at mid-range. A dog over 12.9 years costs about $9,288.
Why the difference? Dogs have higher claim rates. They eat things they shouldn't, tear cruciate ligaments, and develop breed-specific conditions that are expensive to treat. A French Bulldog averages $110/month in insurance because of breathing issues (BOAS surgery alone costs $3,000โ$8,000) and spinal problems. Meanwhile, a Burmese cat sits at just $30/month.
If you want to understand whether insurance is the right call for your specific breed, check out our cost calculator โ it factors in breed-specific health risks.
How Much Does Grooming Cost?
This is where dogs pull ahead in expense by a wide margin.
Most cats groom themselves. Out of the 10 cat breeds in our database, only three (Ragdoll, Maine Coon, and Persian) need professional grooming โ typically $70โ$75 per session every 8 weeks. The other seven breeds? Zero professional grooming costs.
Dogs are a different story. Fifteen of our 25 dog breeds need regular professional grooming, at $55โ$105 per session every 6โ8 weeks. That's $475โ$910 per year for breeds like Groodles, Poodles, and Cocker Spaniels.
A Standard Poodle costs $105/session every 6 weeks โ about $910/year in grooming alone. Over 13.5 years, that's $12,285 just to keep their coat in shape.
Short-haired dogs like Staffordshire Bull Terriers and Beagles skip professional grooming entirely, much like most cats. If grooming costs matter to you, breed choice matters more than the cat-vs-dog question.
Costs Only Dog Owners Pay
Some expenses only exist if you own a dog.
Training: $120โ$300 for a basic obedience course, $300โ$800 for advanced training. Cats don't need formal training. You can't really train a cat to heel, and nobody expects you to.
Dog walking: $20โ$40 per walk if you work full-time and can't get home midday. Most dog owners who hire a walker spend $100โ$200/week. Cats don't need walks.
Doggy daycare: $40โ$80 per day. If your dog has separation anxiety or you're out for long shifts, this adds up fast. Five days a week at $50/day is $13,000/year. Cats are fine alone for a work day.
Higher boarding costs: Dogs cost $45โ$80/night to board when you travel. Cats are cheaper at most boarding facilities, and many cat owners simply ask a friend to visit once a day.
These optional costs are where dog ownership can balloon well beyond the baseline. A dog owner who uses daycare three days a week and a walker twice a week is spending an extra $800+/month that a cat owner simply doesn't.
Costs Only Cat Owners Pay
Cats aren't free of unique expenses either.
Cat litter: This is the big one. Indoor cats cost $300โ$600/year in litter. Mixed indoor/outdoor cats run $200โ$400/year. Even outdoor cats still need $50โ$150/year. Over 15 years, an indoor cat's litter bill totals $4,500โ$9,000.
Parasite prevention varies by lifestyle: Indoor cats cost $100โ$180/year for flea, tick, and worming prevention. Outdoor cats cost $170โ$280/year โ similar to dogs at $170โ$280/year.
Cat-specific costs are real but predictable. There's no equivalent of a $13,000/year daycare bill lurking around the corner.
Lifetime Cost: Cat vs Dog Compared
Here's what the numbers look like over each pet's full lifespan, using mid-range spending from a breeder purchase.
| Breed | Type | Lifetime Cost |
|---|---|---|
| Mixed Breed Cat | Cat | $15,375 |
| Domestic Shorthair | Cat | $15,850 |
| Siamese | Cat | $17,250 |
| Burmese | Cat | $18,320 |
| Russian Blue | Cat | $19,490 |
| Jack Russell Terrier | Dog | $20,085 |
| British Shorthair | Cat | $21,085 |
| Mixed Breed Dog | Dog | $21,250 |
| Bengal | Cat | $21,720 |
| Miniature Dachshund | Dog | $24,660 |
| Australian Kelpie | Dog | $24,625 |
| Beagle | Dog | $25,120 |
| Staffordshire Bull Terrier | Dog | $26,120 |
| Ragdoll | Cat | $26,682 |
| Persian | Cat | $28,024 |
| Maine Coon | Cat | $28,366 |
| Rottweiler | Dog | $28,295 |
| Pug | Dog | $28,455 |
| French Bulldog | Dog | $29,060 |
| Labrador Retriever | Dog | $29,970 |
| Standard Poodle | Dog | $45,040 |
The cheapest dog (Jack Russell, $20,085) costs more than most cats but less than a Maine Coon ($28,366) or Persian ($28,024). The most expensive dog (Standard Poodle, $45,040) costs three times what a Domestic Shorthair does.
Want to compare specific breeds side-by-side? Our breed comparison tool lets you stack any two breeds against each other.
So Should You Get a Cat or a Dog?
Cost is one input, not the whole answer. But if budget is a real constraint, here's the short version:
- Cats cost $10,000 less over a lifetime on average โ mostly from lower food, insurance, and grooming bills
- Low-maintenance dog breeds (Jack Russell, Kelpie, Staffy) can be cheaper than high-maintenance cat breeds (Maine Coon, Persian)
- The real budget blowout for dogs comes from optional costs like daycare, walking, and training โ expenses that don't exist for cats
- Cats live longer (14.9 years vs 12.9 years on average), so the annual cost difference is even larger than the lifetime gap suggests
Run the numbers for your specific situation. Pick a breed, set your state, and adjust the lifestyle sliders.
Calculate Your Pet Costs
Frequently Asked Questions
Are cats really cheaper than dogs in Australia?
Yes. On average, cats cost about $21,000 over their lifetime compared to $31,000 for dogs. The gap comes from lower food costs ($61/mo vs $88/mo), cheaper insurance ($35/mo vs $60/mo), and minimal grooming needs. Cats also don't need training, dog walkers, or daycare.
What is the cheapest pet to own in Australia?
A Mixed Breed Cat adopted from a shelter is the cheapest option at around $15,375 over its lifetime. Domestic Shorthairs are similar at $15,850. Among dogs, a Jack Russell Terrier is the most affordable at about $20,085 lifetime cost.
How much does a cat cost per year in Australia?
At mid-range spending, the average cat costs about $1,150โ$1,500 per year in ongoing expenses (food, insurance, litter, vet checkups). First-year costs are higher due to desexing ($200โ$400), vaccinations ($170โ$265), and initial supplies ($150โ$400). Read our first-year budget guide for a full breakdown.
How much does a dog cost per year in Australia?
The average dog costs about $1,800โ$2,500 per year in ongoing expenses. This covers food ($88/mo average), insurance ($60/mo average), vet checkups, parasite prevention ($170โ$280/yr), and council registration. Breeds needing professional grooming add $475โ$910/year on top.
Do cats or dogs have higher vet bills?
Dogs generally have higher vet bills. They're more prone to accidents, orthopaedic injuries (cruciate ligament tears cost $4,000โ$7,000), and breed-specific conditions. French Bulldogs alone average $110/month in insurance premiums because of their health risks. Cats tend to have fewer emergency visits, though kidney disease and dental issues are common in older cats.
Is pet insurance cheaper for cats?
Yes. Cat insurance averages $35/month compared to $60/month for dogs. That's a saving of $300/year. Cats have lower claim rates and fewer breed-specific surgical conditions, which keeps premiums down.
What hidden costs do dog owners forget about?
Training ($120โ$800), dog walking ($20โ$40/walk), daycare ($40โ$80/day), higher boarding rates ($45โ$80/night), and council registration penalties for undesexed dogs ($50โ$275/year). These optional costs can add thousands per year. Our hidden costs guide covers 12 expenses most people miss.
Can a dog be cheaper than a cat?
In specific cases, yes. A Jack Russell Terrier ($20,085 lifetime) or Australian Kelpie ($24,625) costs less than a Maine Coon ($28,366) or Persian ($28,024). Low-maintenance, short-haired dogs that don't need professional grooming can compete with higher-end cat breeds on cost.