The California estate tax rate is zero. California imposes no estate tax, no inheritance tax, and no death tax of any kind on residents or their heirs. The rate that can still reach a California estate is the federal estate tax, which in 2026 applies only to the portion of an estate above $15 million per person and tops out at 40 percent.
Why California Charges No Estate Tax
California voters repealed the state’s inheritance and gift taxes through Proposition 6 in June 1982, and the ban is still on the books. Revenue and Taxation Code Section 13301 prohibits the state or any local government from imposing a tax on gifts, estates, or inheritances.1California Legislative Information. California Code Revenue and Taxation Code 13301 – Imposition of Tax
For a time, California still collected a “pick-up tax” that captured a share of the federal estate tax through an IRS credit. That credit was phased out by federal legislation and fully eliminated on January 1, 2005, leaving California with nothing to pick up. No California estate tax return has been required for any decedent since that date.2California State Controller’s Office. California Estate Tax
The Federal Estate Tax Rate and Exemption in 2026
The One, Big, Beautiful Bill Act, signed July 4, 2025, set the federal basic exclusion at $15 million per person for decedents dying after December 31, 2025, and made that figure permanent by removing the earlier sunset.3Office of the Law Revision Counsel. 26 USC 2010 – Unified Credit Against Estate Tax4Congress.gov. H.R.1 – 119th Congress – One, Big, Beautiful Bill Act – Text Married couples who coordinate planning can shelter up to $30 million combined. The exemption will be adjusted for inflation starting in 2027.
Only the value above the exemption is taxed. The rates are graduated, but the lower brackets cover such narrow bands that almost every taxable estate pays the top 40 percent rate on nearly all of its taxable value:
- 18% on the first $10,000 over the exemption
- 20% on $10,001 to $20,000
- 22% on $20,001 to $40,000
- 24% on $40,001 to $60,000
- 26% on $60,001 to $80,000
- 28% on $80,001 to $100,000
- 30% on $100,001 to $150,000
- 32% on $150,001 to $250,000
- 34% on $250,001 to $500,000
- 37% on $500,001 to $750,000
- 39% on $750,001 to $1,000,000
- 40% on everything above $1,000,000
The generation-skipping transfer tax, which applies when property passes to grandchildren or more remote descendants, uses the same $15 million exemption and the same 40 percent top rate.5Congress.gov. The Generation-Skipping Transfer Tax
Portability Doubles the Exemption for Married Couples
When the first spouse dies without using the full $15 million exemption, the unused portion can be transferred to the surviving spouse. This “deceased spousal unused exclusion” is what lets a couple shield up to $30 million. Claiming it is not automatic. The executor must file a federal estate tax return (Form 706) at the first death, even when the estate is well below the filing threshold and owes nothing.6Internal Revenue Service. Frequently Asked Questions on Estate Taxes Skip the filing and the unused exemption is forfeited permanently.
The Annual Gift Exclusion Keeps Lifetime Gifts Off the Books
The federal estate and gift taxes share one unified exemption. Taxable gifts made during life reduce the $15 million available at death. Gifts within the annual exclusion never count. For 2026, you can give $19,000 per recipient without any gift tax reporting, and a married couple giving from joint assets can give $38,000 per recipient.7Internal Revenue Service. Frequently Asked Questions on Gift Taxes Gifts above the annual exclusion require Form 709, but no tax is owed until the lifetime exemption is exhausted.
Step-Up in Basis Is the Real Tax Benefit for California Heirs
Most California estates will never hit the federal exemption, so the tax rule that actually matters to heirs is the step-up in basis. Under federal law, the cost basis of inherited property resets to its fair market value on the date of death.8Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent If a parent bought a home in 1985 for $200,000 and it was worth $1.5 million at death, the heir’s basis is $1.5 million. Selling at that price produces no capital gains tax.
California residents get a larger benefit than heirs in most other states because California is a community property state. When one spouse dies, federal law gives both halves of community property a new basis, not just the decedent’s half.8Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent A surviving spouse in California can inherit the family home with the entire accumulated gain wiped out. In common-law states, only the decedent’s half resets.
The step-up does not reach every asset. Retirement accounts such as IRAs and 401(k)s, deferred annuities, and U.S. savings bond interest are treated as income in respect of a decedent and keep the decedent’s original tax characteristics. Beneficiaries pay ordinary income tax on withdrawals from inherited retirement accounts.
Property in Another State Can Still Be Taxed
California’s zero rate protects California property. It does not protect assets located in states that do impose estate or inheritance taxes. About a dozen states and the District of Columbia tax estates, and several start taxing at $1 million to $2 million, well below the federal threshold. If you own a vacation home, rental, or commercial property in one of those states, that state can tax the portion of your estate attributable to property within its borders.
Form 706 Is Only Required for a Narrow Set of Estates
A federal estate tax return is due only when the gross estate exceeds the exemption or when the executor is electing portability or another option that requires a filing. The deadline is nine months after the date of death.9Internal Revenue Service. Filing Estate and Gift Tax Returns An executor can request a six-month filing extension on Form 4768.10Internal Revenue Service. About Form 4768, Application for Extension of Time to File a Return and/or Pay U.S. Estate (and Generation-Skipping Transfer) Taxes
The extension covers paperwork, not payment. Any estimated tax is still due at nine months. Late payment runs 0.5 percent of the unpaid balance per month, up to 25 percent, and climbs to 1 percent per month after the IRS issues a notice of intent to levy. Interest accrues on top from the original due date.11Internal Revenue Service. Topic No. 653, IRS Notices and Bills, Penalties and Interest Charges
For an estate that owes no federal tax and sits comfortably in California, the practical answer stays simple: the state takes nothing, and the only filing worth considering is a Form 706 to lock in portability for the surviving spouse.