Veterinary costs in Australia have risen sharply over the past decade. An emergency surgery for a dog can easily cost between $3,000 and $8,000, while cancer treatment for a cat can exceed $10,000. Despite this, the RSPCA estimates that fewer than one in ten Australian pets is insured. Pet insurance transfers the financial risk of unexpected illness or injury to an insurer, allowing owners to make decisions based on what is best for their pet rather than what they can afford.

Australian pet insurance policies generally fall into three categories. Accident-only cover is the most basic and least expensive, covering injuries from accidents but not illness. Accident and illness cover is the most popular option, covering both unexpected injuries and a wide range of medical conditions. Comprehensive cover adds routine care benefits such as vaccinations, dental cleans, and annual check-ups to the accident and illness base. Most policies also offer optional extras such as behavioural therapy cover and alternative therapies.

One of the most important — and least understood — aspects of pet insurance is sub-limits. A sub-limit is a cap on how much the insurer will pay for a specific condition or treatment category, regardless of the overall annual benefit limit. For example, a policy might advertise a $12,000 annual benefit but cap cruciate ligament surgery at $2,500. If your dog needs cruciate surgery costing $6,000, you would be left paying $3,500 out of pocket even after reaching your excess. Policies without sub-limits, such as those offered by Petsy, cover the full cost of any eligible treatment up to the annual limit.

A pre-existing condition is any illness, injury, or symptom that existed before your policy start date — or, in some cases, before the end of a waiting period. All Australian pet insurers exclude pre-existing conditions to some degree. The key differences between insurers are how they define pre-existing conditions, whether they conduct an upfront assessment, and whether they review exclusions over time. Some insurers conduct a pre-existing condition assessment at the start of the policy, which gives you written confirmation of exactly what is and is not covered before you ever need to claim. This is generally preferable to discovering exclusions at claim time.

Most pet insurance policies impose waiting periods before certain types of cover become active. A standard waiting period for illness cover is 30 days from the policy start date. Cruciate ligament conditions often have a 6-month waiting period. Dental illness cover typically has a 6-month waiting period. Accident cover usually has no waiting period or a very short one (24–48 hours). The purpose of waiting periods is to prevent owners from purchasing insurance only after their pet has already become unwell. Understanding the waiting periods in your policy is essential before you need to make a claim.

The excess is the amount you pay out of pocket each time you make a claim, before the insurer pays its share. Some policies charge a flat excess per claim, others charge per condition per year. A co-payment (or co-insurance) is a percentage of the claim you pay regardless of the excess — for example, if your policy has a 10% co-payment and a $500 excess, and your vet bill is $3,000, you would pay $500 excess plus 10% of the remaining $2,500, totalling $750. When comparing policies, always calculate the effective out-of-pocket cost using realistic claim scenarios rather than just comparing the headline excess figure.

Start cover early. The younger and healthier your pet when you take out a policy, the fewer pre-existing condition exclusions will apply. Read the Product Disclosure Statement carefully before purchasing — not just the marketing summary. Pay particular attention to sub-limits, waiting periods, and the definition of pre-existing conditions. Compare the effective benefit (annual limit minus sub-limits) rather than just the headline annual limit. Check whether the insurer offers a pre-existing condition assessment, which provides written clarity before you need to claim. Consider the insurer's claims process and turnaround time — a fast, simple claims process is worth paying a modest premium for.