Filing an Arizona Estate Tax Return After a Death

Losing someone you love is hard enough without navigating a stack of tax forms and legal paperwork. If you're handling the estate of someone who passed away in Arizona, you've probably searched for how to file an estate tax return and wondered what the state actually requires. Here's the short answer that surprises most people: Arizona does not have a state estate tax. But that doesn't mean you're off the hook entirely. Depending on the size of the estate, federal estate tax obligations may still apply, and you'll still have state-level steps to settle the estate properly. This article walks you through exactly what you need to know and do.

Does Arizona Have an Estate Tax?

No. Arizona repealed its estate tax in 2006. The state does not impose any estate tax or inheritance tax on residents or on property located in Arizona. This means there is no Arizona-specific estate tax return to file with the state.

However, this doesn't mean every estate is tax-free. If the deceased person's estate exceeds the federal estate tax exemption threshold, you may need to file a federal estate tax return with the IRS. You can learn more about the current exemption thresholds and filing deadlines in Arizona to understand where the line falls.

When Does a Federal Estate Tax Return Need to Be Filed?

A federal estate tax return (IRS Form 706) is required when the gross estate value exceeds the federal exemption amount. For 2024, that exemption is approximately $13.61 million per individual. For 2025, it rises to about $13.99 million.

The gross estate includes:

Real estate and property
Bank accounts and cash
Investments, stocks, and bonds
Retirement accounts
Life insurance proceeds (in certain cases)
Business interests
Personal belongings of significant value

If the total value of these assets falls below the federal threshold, no federal estate tax return is required and no estate tax is owed. Most Arizona estates fall under this threshold, which is why many executors never need to file Form 706.

What If the Estate Is Under the Federal Exemption?

Even when no estate tax is owed, the executor or personal representative still has responsibilities. You'll need to settle the estate through Arizona's probate process, distribute assets to beneficiaries, and file the deceased person's final individual income tax returns.

Understanding the Arizona probate court document requirements for beneficiaries can help you avoid delays during this process.

How Do You File a Federal Estate Tax Return for an Arizona Resident?

If the estate exceeds the federal exemption, here are the steps to file Form 706:

Step 1: Determine the Gross Estate Value

Gather all financial records and determine the fair market value of every asset the deceased owned or had an interest in at the time of death. This includes jointly held property, trusts, and assets that pass outside of probate.

Step 2: Calculate Deductions

You can reduce the taxable estate by claiming allowable deductions, including:

Debts and mortgages owed by the deceased
Funeral expenses
Administrative costs of settling the estate
Charitable donations made by the estate
The marital deduction (for assets passing to a surviving spouse)

Step 3: Complete IRS Form 706

Form 706 is a detailed document. It requires asset valuations, deduction calculations, and information about prior taxable gifts made by the deceased during their lifetime. The IRS provides instructions for Form 706 on its website.

Step 4: File by the Deadline

Form 706 is due nine months after the date of death. If you need more time, you can request a six-month extension by filing IRS Form 4768 before the original deadline.

Step 5: Pay Any Tax Due

The estate tax payment is also due nine months after death, even if you get a filing extension. Late payments may result in penalties and interest.

Do Beneficiaries in Arizona Owe Inheritance Tax?

No. Arizona has no inheritance tax, and there is no federal inheritance tax either. Beneficiaries do not owe tax simply for receiving assets from an estate. However, beneficiaries may owe income tax on certain inherited assets for example, if they withdraw funds from an inherited traditional IRA, those distributions are typically taxable as income.

If you're an executor managing distributions, reviewing the forms and documents executors and administrators need in Arizona can keep you organized.

What Other Tax Returns Does the Estate Need to File?

Beyond the federal estate tax return, the estate may need to file:

Final individual income tax return (Form 1040) covering the deceased's income from January 1 through the date of death
Estate income tax return (Form 1041) if the estate earns more than $600 in income during the administration period (for example, rental income, interest, or dividends)
State income tax return Arizona requires a final state income tax return if the deceased had Arizona-source income

A detailed list of required documents for settling an Arizona estate can help you track everything you need.

Common Mistakes Executors Make with Estate Taxes

Handling estate taxes incorrectly can cost the estate money and create legal problems. Watch out for these frequent errors:

Assuming Arizona has its own estate tax it doesn't, and filing unnecessary state forms wastes time and money
Underestimating the gross estate value forgetting to include jointly held property, life insurance, or trust assets can lead to an inaccurate filing
Missing the nine-month deadline failing to file Form 706 or request an extension on time triggers penalties
Not electing portability if a surviving spouse exists, the executor can elect to transfer the deceased spouse's unused exemption to the surviving spouse, potentially saving millions in future estate taxes. This election must be made on Form 706, even if no tax is owed
Mixing up estate tax and income tax these are separate obligations with different forms and deadlines
Failing to get a professional valuation real estate, business interests, and valuable collectibles need proper fair market value assessments

Should You Hire a Professional to Help?

If the estate approaches or exceeds the federal exemption threshold, working with a tax attorney or certified public accountant experienced in estate tax is strongly recommended. The calculations involved in Form 706 are complex, and errors can lead to audits or overpayment.

For smaller estates that don't require a federal estate tax filing, you may still want professional help navigating Arizona probate and the final income tax returns. The cost of a professional is usually paid from estate funds, not out of your own pocket.

What Are the Real Next Steps for an Executor?

Here's a practical checklist to guide you through the process:

Get certified copies of the death certificate you'll need multiple copies for banks, courts, and agencies
Locate the will and file it with the Arizona probate court in the county where the deceased lived
Inventory all assets and determine their values as of the date of death
Check the total gross estate value against the current federal exemption threshold
If under the threshold no federal estate tax return is needed. Focus on probate, final income tax returns, and asset distribution
If over the threshold hire an estate tax professional and begin preparing Form 706 immediately. Consider the portability election
File the deceased's final federal and Arizona income tax returns by the regular April tax deadline
File Form 1041 if the estate earns income during administration
Keep detailed records of all transactions, distributions, and expenses

Staying organized from the start prevents headaches later. If you need a complete overview of the forms involved, the full filing guide for Arizona estate tax returns covers everything in one place.

Tip: Start gathering financial documents as soon as possible. Delays in locating accounts, property records, and tax documents are the single biggest reason estate settlements drag on for months or years. The sooner you have a complete picture of the estate's assets, the faster you can meet every deadline and move forward.