How to Toilet Train Your Cat

1. Move your cat's litter box into the bathroom, next to the toilet, but do it gradually. Move your cat's litter box 1 inch closer to the bathroom than where it was before. Repeat the move daily until the box reaches the bathroom, ending up directly up against the toilet.
2. Gradually raise the litter box up by placing phone books (or something similar) under it. Repeat daily until the box is of equal height to the toilet. Whenever you raise the box take a little bit of the litter out of the box. You may need to secure the litter box to the phone books or whatever it's sitting on so that it doesn't move when the cat jumps onto it.
3. Move the box over 1 inch onto the seat. Repeat daily until the box is directly over the seat. Continue gradually decreasing the amount of litter in the box until there is only a thin layer (less than 1 inch) of it left.
4. Replace the litter box with a "training box". You have a few different options here, but the important thing to remember is to make sure the "training box" can hold your cat's weight if they step or jump onto it:
   
   
   • Lift the toilet seat and tape a piece of wax paper over the hole so that the toilet looks like a drum. Lower the seat over the wax paper. Add flushable litter.
   • Lift the toilet seat and tape a bowl or aluminum pan to the edges. Put the seat down so that it holds the bowl in place. (See video below.) Add flushable litter.
   • Use a commercial training device, sold specifically for this purpose.
5. Transition into the cat using only the toilet. If using wax paper or an aluminum pan, cut a hole about one inch in diameter in the center and gradually increase the size of the hole until it is almost gone. If you're using a training seat, remove the rings, one at time. This is done to gradually get the cat used to urinating or defecating into water. Simultaneously, no matter which method you're using, reduce the amount of litter so that there is no litter when the paper, bowl, or device is removed.