Policies start at $9 a month for single cat insurance and $15 a month for single dog insurance, while allowing you to add more pets and coverage for an additional cost. MetLife offers a few discounts for affordable pet insurance for multiple pets: Multi pet discount if you’re enrolling more than one pet Internet discount for signing up online Military, veteran, and first responder discount to thank our heroes Healthcare and animal care discounts to thank those who care for us and our pets Discount for each year you don’t file a claim