Your will usually only affects assets in your individual name, without beneficiaries or joint owners. Other assets like joint bank accounts, life insurance, annuities, 401Ks and IRAs are considered non probate assets. They pass to the beneficiaries or joint owners you’ve named in those documents and pass outside of your will. It’s important to make sure that your beneficiary forms are updated. Assets and trust can also usually avoid probate, whether they’re revoking all or irrevocable, which can make the process of handling someone’s final affairs move somewhat quicker than going through full probate.
Estate Administration, what you need to know.