Cats are surrendered to the RSPCA for a wide range of reasons, including behavioural problems, medical issues, and abandonment by owners. In New South Wales, the top 10 reasons for the surrender of cats are:

1. Moving to a new residence where pets are not allowed
2. Being unable to afford caring for the cat
3. Having too many other animals in the house
4. Moving overseas or interstate
5. Being unable to afford specific veterinary treatment
6. Having allergies
7. Moving to a unit or apartment
8. The cat being too old
9. Not wanting the cat anymore
10. The owner being too ill to care for the animal.