What does my estate include?

As noted, your estate includes everything you own. While certain things are obvious, like real estate and personal property (bank accounts, clothes, jewelry, etc.) other interests are also included in your probate estate at death, interests that are less apparent, such as your share of ownership in a business, the value of retirement plans and insurance policies, intellectual property, and possibly assets held in a trust you created, depending on the authority you have over the trust.