Looking for an affordable pet? We ranked the cheapest pets to own by estimated lifetime cost — from shelter cats and small dogs to companion animals.
Not everyone has the budget for a high-maintenance breed. If you want companionship without the five-figure lifetime commitment, the cheapest pets to own long-term tend to be smaller animals with lower food costs, fewer grooming needs, and fewer breed-specific health issues.
This guide compares estimated lifetime costs across several common pet types. Because different species have vastly different care requirements and lifespans, these comparisons should be treated as general orientation rather than direct apples-to-apples rankings.
Estimated lifetime cost: $12,000–$18,000 over 15–20 years
A mixed-breed indoor cat from a shelter is one of the most budget-friendly mainstream pets. Adoption fees typically run $50–$150 and often include spay/neuter, first vaccines, and microchip. Domestic shorthairs tend to be healthier than purebred cats due to genetic diversity. Their annual costs — food, litter, and routine vet care — commonly run $800–$1,200. No professional grooming needed.
Estimated lifetime cost: $14,000–$22,000 over 14–18 years
Among dogs, Chihuahuas are one of the cheapest pets to own. They eat small portions, don’t require professional grooming, and their tiny size means lower medication doses and generally lower surgical costs. They’re also one of the longest-lived dog breeds. Estimated annual costs run $1,000–$1,500.
Estimated lifetime cost: $16,000–$25,000 over 12–15 years
Beagles are medium-sized, short-coated, and generally robust. Food costs are moderate, grooming is minimal, and they have fewer documented breed-specific health issues than many popular breeds. Their main cost risks are obesity (Beagles are enthusiastic eaters) and ear infections — both manageable with preventive care.
Estimated lifetime cost: $15,000–$28,000 over 10–15 years
Mixed-breed dogs benefit from genetic diversity, which is generally associated with fewer breed-specific health problems. Shelter adoption ($50–$300, typically including spay/neuter and vaccines) eliminates the breeder purchase premium. Medium-sized mixed breeds tend to offer the best combination of health, longevity, and manageable food costs. The ASPCA estimates routine annual dog ownership costs at $1,200–$2,500 depending on size.
Estimated lifetime cost: $500–$1,500 over 2–3 years
For the lowest absolute lifetime cost, small rodents are the most affordable option. Cage setup costs $100–$200, monthly food and bedding runs $20–$40, and their short lifespans mean total spending is limited. However, veterinary care for small animals, when needed, requires an exotic-animal vet and can be proportionally expensive ($50–$150+ per visit). Access to exotic vets is also more limited in many areas. The tradeoff: much shorter companionship and more limited interaction than cats or dogs.
The biggest cost drivers in pet ownership are body size (food costs scale with weight), grooming needs (non-shedding coats can add $1,000+/year in grooming), breed-specific health risks (genetic conditions can add thousands over a lifetime), and lifespan (longer lives mean more total spending, though annual cost is what your budget feels).
Compare estimated lifetime costs for any breed with our free calculator.
Use the calculator to test whether the headline ranking still holds for your state and care level.
Cost matters, but the best decision balances budget, lifestyle fit, and the care the animal will need.
Often, but not always. Their real cost still depends on size, age, and health history.
Yes. Emergencies, chronic disease, and premium care choices can raise the total quickly.
Size, grooming, food intake, lifespan, and hereditary health risk are the biggest factors.