Short answer: A will alone does not protect what you leave your grandchildren. It only takes effect once a court validates it through probate, and probate is public, slow, and expensive. A funded revocable living trust is what actually keeps your grandchildren’s inheritance out of court, and if you leave nothing in writing at all, California’s intestate succession statutes decide who inherits, not you. Under that statute, a grandchild only steps into the inheritance line if that grandchild’s own parent, your child, died before you did.
What happens to my grandchildren if I never write a will or trust?
If you die without a will in California, the intestate succession statutes control who gets your property, not your personal wishes for your grandchildren, under Probate Code § 6400. Community and quasi-community property goes entirely to a surviving spouse under Probate Code § 6401(a) and (b). Separate property is split according to a fixed formula under Probate Code § 6401(c): all of it to the spouse if there are no surviving children, parents, or siblings, half if there is one child or that child’s line of descendants, and a third if there are two or more children.
Grandchildren are not first in line under intestate succession. Probate Code § 6402 passes property to your children first, then to your grandchildren only through a deceased child’s share, meaning a grandchild inherits directly only if that grandchild’s parent, one of your children, died before you did. If all your children survive you, your grandchildren typically get nothing directly under the intestate statute, no matter how close you were to them. Dying without a will also does not avoid probate. An intestate estate above the small estate threshold still goes through the same court-supervised process, under the same statutory executor and attorney fees set by Probate Code §§ 10800 and 10810.
Does a living trust protect my grandchildren’s inheritance better than a will?
Yes, but only if it is actually funded, meaning your accounts and real property are retitled into the trust’s name during your lifetime. A will by itself does not avoid probate for anything. A trust that sits signed in a drawer while your house and bank accounts remain in your own name does not avoid probate either. It is the funding, not the document, that keeps assets out of court.
Once you name a trustee to manage what your grandchildren eventually receive, that trustee becomes a fiduciary with real legal obligations. Under Probate Code § 16000, a trustee must administer the trust according to its terms and the law, and must act within a reasonable time even though California sets no fixed statutory deadline for distribution. A trustee cannot use trust property for personal benefit, under Probate Code § 16004. When your trust becomes irrevocable, which typically happens at your death, Probate Code § 16061.7 requires the trustee to send formal notice to every beneficiary and legal heir within 60 days, and that notice opens a 120-day window during which the trust can be contested. Beneficiaries, including grandchildren once they reach the age set in your trust, are also entitled to accountings from the trustee under Probate Code §§ 16060 through 16063. If a trustee will not provide one, a beneficiary can petition the court to compel it under Probate Code § 17200.
A living trust built for grandchildren typically holds their share past age 18, releasing it in stages or on milestones you choose rather than handing an eighteen year old a lump sum.
Can I give money to grandchildren without tax consequences?
Within limits, yes, and the limits are generous. For 2026, you can give up to $19,000 to any one grandchild without filing a gift tax return, and a married couple electing to split gifts can give $38,000 to the same grandchild tax free. Give more than that to one grandchild in a year and you owe no tax at that point, but you do need to file a Form 709, and the excess counts against your $15,000,000 lifetime federal estate and gift tax exemption under Internal Revenue Code § 2010(c).
Two payments fall outside the gift tax system entirely regardless of amount, under Internal Revenue Code § 2503(e): tuition and medical bills paid directly to the school or provider, not routed through the grandchild. There is no dollar cap on either.
If you want to fund a grandchild’s education specifically, a 529 plan lets you front-load five years of annual exclusions at once. In 2026 that means up to $95,000 per beneficiary from one grandparent, or $190,000 from a married couple, filed on Form 709 with an election to spread the gift over five years. That single move can fund most of a grandchild’s college education in one transaction without touching your lifetime exemption.
What about naming a guardian or protecting a grandchild with a disability?
If you are raising or helping raise a minor grandchild, or you want a say in who would step in if something happened to that child’s parents, your estate plan is the place to name your preference for guardian. A trust also lets you control timing rather than handing a grandchild full access to an inheritance the day they turn eighteen. You can stage distributions by age, tie them to milestones like finishing school, or leave a trustee discretion to release funds as needed.
If a grandchild has a disability or receives means-tested public benefits, an outright gift or a poorly drafted trust share can disqualify that grandchild from the benefits they rely on. This needs to be built correctly from the start with an attorney, not fixed after the fact. The same is true of a grandchild with substance abuse issues, a pending divorce, or creditor problems: a trust drafted with the right protective language keeps an inheritance from becoming a target, where an outright gift does not.
Figures verified July 2026.
What to do next
Start with whether your existing accounts and real property are actually titled in your trust’s name, not just whether you signed one. Then look at whether your plan says anything specific about grandchildren at all, or whether it simply leaves everything to your children and assumes they will take care of the rest. If you are not sure, an estate planning attorney can review what you have and tell you plainly whether it does what you think it does.
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