Animalperson
She/he could be stressed out or could have a medical problem. Call the vet and get a vet visit asap.

antoinette s
that's not normal . i know your house is about to stink.

Adam's Rib
Ask the vet but you must make sure her litter is cleaned every day and more often than that if needed. Cats are very clean animals and they will not use dirty litter. She may have a bladder problem too. The first thing you need to do is take her to her vet.

~Animal Lover~
Believe me, I've had the same problem! First of all, if your kitten is a male, he has probably just entered puberty and is beginning to spray to mark is territory. If this is the case, get him fixed A.S.A.P.! It will help not just with spraying, but with attitude and other problems you may be having. If this isn't it, your kitten may not understand the litterbox. If he refuses to touch it, you might try: #1 Changing up the cat litter. #2 Moving the litterbox to a different location- keep trying! Super important: make sure that everytime your kitty has an accident, clean it with a odor removing pet spray!! If he/she smells previous spots, they'll go again right on top! This happens both in dogs and cats, so make sure you're cleaning it right! Also, if you have other cats, this may be the problem. Some cats REFUSE to go potty where other cats have gone. If this is the case, you need to designate your kitten his/her very own litterbox. And when he/she does go, make sure you keep it clean!! I know none of my cats like a dirty litterbox. If you still are having trouble, your kitten may need to lose the privilege of "free roam" of the house until the problem is resolved. Try confining him/her to your room with some toys and his litterbox. Cats don't like to go potty near where they sleep, so this may help. But like I said, if your cat is a boy, please get him fixed before going through the trouble to do all the other stuff! That has always helped my male kitties, and even females! And remember to clean up the messes well! I hope this helps you- good luck!

bob
it normal for kittens to do that at the start u tell her no put her in tray every time her dos this keep doing it and do not let her on bed chairs on till she stop and she will get mess fast my did

Unicornrider
If the cat is only weeing everywhere but the box, and still does the rest in the box, please take the cat to the vet to investigate a possible urinry infection or kidney problems. Only AFTER that has been ruled out can one think to treat it as a behavioural problem.