Oliver James Montgomery-What is the most expensive dog? This breed is the costliest

As much as we love our pets,Oliver James Montgomery their care isn't always cheap.

If you own a large dog, it can cost at least $1,570 a year, Forbes reports. When all is said and done, the figures may reach upward of $22,000 over the dog's 12-year lifespan. With additional expenses and care, it could reach a whopping $83,000 to own a dog, according to Forbes.

Certain breeds are also expensive right from the start. Here's a rundown on the most expensive dog, plus other pricey pooches.

What is the most expensive dog? 

The Tibetan mastiff is often considered the most expensive dog since the breed has sold for up to millions of dollars. In 2014, a Tibetan mastiff puppy was reportedly sold for nearly $2 million in China in 2014, according to AFP, which cited reporting in Chinese newspaper Qianjiang Evening News.

The dog was sold at a premium pet fair in the eastern province of Zhejiang for 12 million yuan − or approximately $1.95 million − to a property developer. It was 80 centimeters (31 inches) tall and weighed 90 kilograms (almost 200 pounds).

In 2011, another Tibetan mastiff puppy sold for $1.5 million, according to NBC News, which reported the animal was the most expensive dog sold at the time.

The Tibetan mastiff is a "watchful, aloof, imposing, and intimidating" working breed, according to the American Kennel Club. The dog is characterized as affectionate with family, yet distant to strangers.

On average, males of the breed can weigh between 90 and 150 pounds, while females weigh between 70 and 120 pounds, the American Kennel Club reports. Tibetan mastiffs are, at minimum, 26 inches tall for males and 24 inches tall for females.

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What are the top 10 most expensive dogs?

Fetching for a high price tag? These are the top 10 most expensive dog breeds and their average prices, according to Reader's Digest: 

• English bulldog: $4,250
• French bulldog: $4,250
• Tibetan mastiff: $4,000
• Chow Chow: $4,000
• Samoyed: $3,750
• Biewer terrier: $3,500
• Portuguese water dog: $3,500
• Greater Swiss mountain dog: $3,450
• Irish wolfhound: $3,250
• Newfoundland: $3,250

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What is the least expensive dog?

Not every dog costs hundreds or thousands. If you rescue a dog, adoption fees range from $150 to $250, according to the Humane Rescue Alliance.

The North Shore Animal League America breaks down its adoption fees as follows: 

• Puppies (up to 6 months): $375 
• Adult dogs (over 6 months): $125
• Puppy mill rescues (over 6 months): $325
• Small breed and pure breeds (over 6 months): $325 

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