Arizona does not have an estate tax. The state also does not impose an inheritance tax or a state-level gift tax, so nothing comes off the top at the state level when an Arizona resident dies.1Arizona Department of Revenue. Publication 900 – Estate Tax Federal estate tax is a separate question, and it only reaches estates worth more than $15 million per person in 2026. For most families, the practical answer is that heirs receive Arizona assets without a state death tax bill.
When Arizona’s Estate Tax Ended
Arizona used to collect what was called a “pick-up tax” or “sponge tax,” which piggybacked on a federal credit for state death taxes. Congress phased that credit out between 2002 and 2005, and Arizona’s estate tax effectively disappeared with it. The legislature then formally repealed the tax for anyone who died after December 31, 2004.1Arizona Department of Revenue. Publication 900 – Estate Tax The repeal also eliminated Arizona’s generation-skipping transfer tax.2Arizona Legislature. Arizona State Senate Fact Sheet for S.B. 1170
Arizona has not brought either tax back. It also never adopted an inheritance tax, which is the type of death tax paid by the person receiving assets rather than by the estate itself.
Federal Estate Tax Still Applies to Large Estates
The federal government taxes very large estates regardless of what state the decedent lived in. Under the One Big Beautiful Bill Act, signed in 2025, the basic exclusion amount is $15 million per person for deaths in 2026.3Internal Revenue Service. What’s New – Estate and Gift Tax The statute amends 26 U.S.C. ยง 2010(c)(3) to replace the earlier $5 million baseline, effective for deaths and gifts after December 31, 2025.4United States Congress. H.R. 1 – 119th Congress – One Big Beautiful Bill Act
Only the value above $15 million is taxed, and rates top out at 40%. A $20 million estate would owe tax on the $5 million overage, potentially producing a bill of roughly $2 million before any deductions or credits.
A few features of the new law matter for planning:
- The $15 million exemption has no built-in expiration date, unlike the 2017 Tax Cuts and Jobs Act figure it replaced.
- The number holds flat for 2026 and adjusts for inflation starting in 2027.
- Estates with gross value above $15 million must file IRS Form 706.5Internal Revenue Service. Estate Tax
How Married Couples Shelter Up to $30 Million
A married couple can shield roughly $30 million from federal estate tax in 2026 by using both spouses’ exemptions. When the first spouse dies, any unused portion of their $15 million exemption can carry over to the survivor. The IRS labels this the “deceased spousal unused exclusion amount,” commonly called portability.
Portability is not automatic. The executor has to file Form 706 for the first spouse to die and affirmatively elect portability, even when the estate is well below the filing threshold and owes no tax.5Internal Revenue Service. Estate Tax Miss that step and the surviving spouse loses access to the deceased spouse’s unused exemption. The deadline is generally nine months after the first death, with a six-month extension available if requested on time.6Internal Revenue Service. Filing Estate and Gift Tax Returns The IRS offers a simplified late-election procedure for some estates, but families should not plan around it.
Arizona’s Community Property Step-Up Advantage
Arizona is a community property state, and that produces a tax benefit for surviving spouses that residents of separate-property states do not get. When a spouse dies, inherited assets normally receive a “stepped-up basis,” meaning the tax cost resets to fair market value on the date of death. In most states, only the deceased spouse’s half of jointly owned property gets the step-up. In Arizona, both halves of community property receive it.7Office of the Law Revision Counsel. 26 U.S. Code 1014 – Basis of Property Acquired From a Decedent
Consider a couple who bought a Phoenix home for $200,000 twenty years ago and it is worth $700,000 when one spouse dies. In a separate-property state, the survivor’s blended basis would be roughly $450,000, meaning a later sale at $700,000 would generate about $250,000 of taxable gain. In Arizona, the full $700,000 becomes the new basis and the same sale produces zero taxable gain.
The step-up applies to stocks, investment accounts, and real estate alike.8Internal Revenue Service. Gifts and Inheritances For heirs who plan to sell appreciated assets soon after inheriting them, it can wipe out the capital gains tax entirely.
Taxes That Still Reach Inherited Arizona Assets
No estate tax does not mean no tax. A few obligations survive the absence of a state death tax, and they are the ones that surprise families.
Income the Estate Earns During Administration
While an estate is being settled, it can earn income from investments, rentals, or business interests. That income is taxable. If the estate’s gross income reaches $5,000 or more, the personal representative must file Arizona Form 141AZ, the fiduciary income tax return, along with a federal fiduciary return.9Arizona Department of Revenue. Arizona Fiduciary Income Tax Return 141AZ Instructions Arizona taxes this at its flat individual rate of 2.5%.
Inherited Retirement Accounts
Distributions from inherited IRAs and 401(k)s are generally taxable to the beneficiary. Most non-spouse beneficiaries who inherited from someone who died in 2020 or later must empty the account within 10 years of the account holder’s death. Surviving spouses, minor children, disabled or chronically ill individuals, and beneficiaries within 10 years of age of the deceased have more flexible options, including distributions over their own life expectancy.10Internal Revenue Service. Retirement Topics – Beneficiary
The 10-year rule forces a timing decision. Taking the whole balance in one year can push a beneficiary into a higher bracket; spreading the withdrawals across the window often produces a lower total tax bill.
Ongoing Property Tax
Real estate owned by the estate keeps owing annual property tax to its county. Probate does not pause the bill, and unpaid property tax can produce a lien on the property.
Out-of-State Property Can Still Trigger a Death Tax
Arizona residency does not shield everything. Real estate or tangible property located in a state that imposes an estate or inheritance tax can be taxed by that state, regardless of where the owner lived. Roughly a dozen states and the District of Columbia impose estate taxes, with exemption thresholds well below the federal figure in some cases. Several other states impose inheritance taxes on the recipient. An Arizona resident with a vacation home in one of those states could face a state-level tax bill that Arizona property would never generate.
Federal Filing Deadlines
When Form 706 is required, either because the estate exceeds $15 million or because a surviving spouse wants to preserve portability, the return is due nine months after the date of death. A six-month extension is available if requested before the original deadline and estimated tax is paid on time.6Internal Revenue Service. Filing Estate and Gift Tax Returns Missing the deadline without an extension produces penalties and interest, even if deductions ultimately eliminate the tax.
For any married decedent, treating the nine-month Form 706 deadline as firm is the safe approach. A missed portability election can cost the surviving spouse millions in future federal estate tax, and Arizona’s own silence on estate tax does nothing to offset that federal exposure.