No. Not everything you own will go through probate. Jointly-owned property and assets that let you name a beneficiary (for example, life insurance, IRAs, 401(k)s, annuities, etc.) are not controlled by your will and usually will transfer to the new owner or beneficiary without probate. But there are many problems with joint ownership, and avoidance of probate is not guaranteed. For example, if a valid beneficiary is not named, the assets will have to go through probate and will be distributed along with the rest of your estate. If you name a minor as a beneficiary, the court will probably insist on a guardianship until the child legally becomes an adult.