Does a spouse automatically inherit everything?

Does a surviving spouse automatically inherit everything? Intestacy (dying without a will) splits property by state formula—often not 100% to spouse if children from another relationship exist. Community property states treat marital assets differently than common law states. ^[1][2] Will A valid will can disinherit a spouse only within state elective share / community property limits—many states give a spouse a minimum share. Elective share Surviving spouse may elect against the will to claim a statutory portion. Planning Joint tenancy and beneficiary designations pass outside probate and can override expectations. ^[1]