Estimated cost of having a cat
 

1. Acquiring the kitten (newly born kittens, but not retired breeding cats)
   Shelter adopted: around $100
   Pure-bred from reputable breeder: around $2,000, varies by cattery
    

2. Shipping (if applicable)
   Cargo: around $300, varies by destination
   Nanny: around $600, varies by destination
   For international students bringing cats back to their motherland: around $2,000, varies by airline
    

3. Food (we use instinct canned as example based on their feeding guidelines, varies by types and brands)
   around $90 monthly
    

4. Cat Litter (we use purina yesterday's news as example, assuming fulling changing the cat litter twice a month)
   around $20 monthly
    

5. Supplies
   2 litter boxes (changed yearly): around $60 yearly
   1 cat tree (may change according to owner preferences): $100-200, could be more
   many scratch boards (as it will be worn-out, you will need to buy refills): around $20 monthly
   Cat treats (we use inaba churu as example, though this is not essential): around $40 yearly
   Supplements (such as urinary tract support, hairball solution, etc.): around $20 monthly
   Toys (an estimate for buying 2 toys monthly, 1 wand +1 plush): around $15 monthly
    

6. Vet routine care including yearly examination, vaccinations: around $200 based on the vet hospital you would bring your cat to
    

7. Emergency funds: at least $3,000, accidents can happen and you better be prepared (swallowing foreign objects, urinary blockage due to cat's own biological character or improper feeding by owner, and more)
   
   I did not include insurance here because it is up to each individual to purchase insurance for their cats or not. But still I highly suggest purchasing cat insurance because it saves you a lot of money when it comes to emergency.