How to File New York Estate Tax Form Et-706

When someone passes away owning property or assets in New York, the person responsible for settling the estate often faces a stack of tax forms they've never seen before. Form ET-706 is the big one it's the New York State Estate Tax Return, and filing it correctly can mean the difference between a smooth estate settlement and costly penalties. Whether you're an executor, administrator, or personal representative, understanding how to file this form step by step saves you time, stress, and money. This guide walks you through every section so you can file with confidence.

What Is New York Estate Tax Form ET-706?

Form ET-706 is the official estate tax return required by the New York State Department of Taxation and Finance. It reports the total value of a deceased person's estate and calculates any state estate tax owed. New York is one of a handful of states that imposes its own estate tax separate from the federal estate tax, which is reported on IRS Form 706.

Not every estate needs to file ET-706. New York currently has an estate tax exemption threshold for deaths occurring in 2024, the basic exclusion amount is $6,940,000. If the gross estate plus any taxable gifts exceeds this amount, filing is required. The New York Department of Taxation and Finance updates this threshold periodically, so always check the current exemption amount before filing.

Here's what makes New York's estate tax tricky: there's a "cliff" provision. If the estate value is between 100% and 105% of the exclusion amount, a reduced credit applies. If the estate exceeds 105% of the exclusion, the entire taxable estate gets taxed not just the amount over the threshold. This is a common source of surprise for executors.

Who Is Responsible for Filing Form ET-706?

The executor, administrator, or personal representative of the estate is legally responsible for filing ET-706. If no executor has been appointed, anyone in possession of the decedent's property may be required to file. As an executor, understanding your filing responsibilities for New York inheritance and estate taxes is essential before you begin.

If you're dealing with the estate of a parent, the timing requirements around when to file after the death of a parent can help you plan your work and avoid missed deadlines.

When Is the Filing Deadline?

Form ET-706 is due nine months after the date of death. However, you can request an automatic six-month extension by filing Form ET-133 before the original due date and paying any estimated tax owed. Interest still accrues from the original due date on any unpaid balance, even with an extension.

If the estate is involved in probate, the timeline may intersect with court proceedings and documentation requirements that you'll need to coordinate carefully.

What Documents and Information Do You Need Before You Start?

Gathering the right paperwork before filling out ET-706 prevents delays and errors. Here's what you'll need:

Death certificate a certified copy
Decedent's will (if one exists) and any trust documents
Prior gift tax returns (IRS Form 709) for any taxable gifts made after 1976
Federal estate tax return (IRS Form 706), if one was filed
Property appraisals real estate, business interests, collectibles, and other non-cash assets must be valued as of the date of death
Financial statements bank accounts, brokerage accounts, retirement accounts, and life insurance policies
Mortgage and debt records any outstanding liabilities of the estate
Prior years' income tax returns for the decedent
Funeral expense receipts
Administrative expenses legal fees, accounting fees, executor commissions

For non-resident estates where the decedent owned property in New York but lived elsewhere, the filing rules differ slightly. Our guide on New York estate tax instructions for non-resident beneficiaries covers those specifics.

How Do You Fill Out Form ET-706 Section by Section?

Section A: Decedent Information

Enter the decedent's full legal name, Social Security number, date of death, domicile at the time of death, and county of residence. If the decedent was not a New York resident, indicate their state of domicile and specify the New York-situs property separately.

Section B: Executor Information

Provide the executor's name, address, phone number, and relationship to the decedent. If a professional (attorney or CPA) is handling the filing, include their information as well.

Schedules A Through R: Reporting Assets and Deductions

This is the bulk of the form. Each schedule covers a different category:

Schedule A Real Estate: List all real property owned by the decedent, including address, fair market value at date of death, and any mortgages. New York real estate owned by a non-domiciliary is included here.
Schedule B Stocks and Bonds: Report all publicly traded and privately held securities with their date-of-death values.
Schedule C Mortgages, Notes, and Cash: Include bank account balances, CDs, promissory notes held, and cash on hand.
Schedule D Insurance on the Decedent's Life: Report life insurance proceeds if the estate was the beneficiary or if the decedent held incidents of ownership.
Schedule E Jointly Owned Property: List jointly held assets and the portion includable in the gross estate.
Schedule F Other Miscellaneous Property: Cover anything not captured in Schedules A through E vehicles, artwork, jewelry, business interests, digital assets, etc.
Schedule G Transfers During Decedent's Lifetime: Report certain gifts or transfers made within three years of death (the "clawback" provision applies here).
Schedule H Powers of Appointment: Report any general powers of appointment the decedent held.
Schedule I Annuities: Include the value of any annuities payable to the estate or surviving beneficiaries.
Schedules J through N Deductions: Claim deductions for funeral expenses, administration costs, debts and mortgages, charitable bequests, and the marital deduction (for assets passing to a surviving spouse).
Schedule P Credit for Prior Gifts: If the decedent paid federal gift tax on prior gifts, a credit may be available.
Schedule R Disclaimers: If any beneficiary has disclaimed (refused) an inheritance, report it here.

Calculating the Tax

After completing the schedules, the form walks you through computing the gross estate, subtracting allowable deductions to arrive at the taxable estate, and then applying the New York estate tax rate schedule. New York uses a graduated rate table with rates ranging from 3.06% to 16% depending on the taxable estate amount.

One calculation many people get wrong is the gift add-back. New York requires you to add back certain gifts made within three years of death that are not already included in the federal gross estate. This catches executors off guard, especially when the decedent made large gifts shortly before passing away.

How and Where Do You Submit the Completed Form?

Mail the completed ET-706, along with all required attachments, to:

New York State Department of Taxation and Finance
Estate Tax Bureau
W.A. Harriman Campus
Albany, NY 12227

As of now, New York does not accept electronic filing for ET-706. The return must be filed on paper with original signatures. Make sure to keep a complete copy for your records.

You must also file a federal estate tax return (IRS Form 706) if the gross estate exceeds the federal exemption amount ($13.61 million for 2024). Attach a copy of the federal return to your ET-706 filing if one was filed.

What Are Common Mistakes to Avoid?

These errors cause the most problems for executors filing ET-706:

Undervaluing real estate. Use a qualified appraiser. The tax authority will scrutinize real estate values, especially for high-value properties in the NYC metro area.
Forgetting the three-year clawback. Gifts made within three years of death may need to be added back into the gross estate. Many executors miss this.
Misapplying the "cliff." If the estate is near the exemption threshold, failing to account for the cliff can result in a massive unexpected tax bill or a missed opportunity to plan around it.
Not filing when required. Even if no tax is owed, a protective return may be advisable if the estate is close to the filing threshold.
Missing the deadline. Late filing triggers penalties and interest. Request an extension before the due date if you need more time.
Ignoring non-resident filing rules. If the decedent wasn't a New York resident but owned property in the state, a limited-situs ET-706 must still be filed.
Failing to attach required schedules and documentation. Incomplete returns get sent back, which delays the process.

What Happens After You File?

After the Department of Taxation and Finance receives your return, they will review it. This process can take several months. They may request additional documentation or issue an adjusted assessment if they disagree with your valuations or calculations.

Once the return is accepted and any tax owed is paid in full, you'll receive a estate tax closing letter confirming clearance. This letter is often needed to transfer real property, release bank accounts, or close out the estate in Surrogate's Court.

Do You Need Professional Help to File ET-706?

Form ET-706 is complex. For estates near or above the exemption threshold, hiring a tax professional experienced with New York estate tax is strongly recommended. The cost of professional help is itself an administrative expense deductible on the return. A CPA or tax attorney can help you avoid costly errors, identify deductions you might miss, and handle correspondence with the tax department.

Quick Checklist for Filing Form ET-706

Confirm filing requirement check if the gross estate exceeds the current New York exemption threshold
Gather all documents death certificate, will, appraisals, financial statements, prior gift tax returns
Get professional appraisals for real estate, business interests, and valuable personal property
Complete each schedule report all assets, deductions, and credits accurately
Calculate the three-year gift add-back for any gifts made near the date of death
Apply the correct tax rate table and watch for the cliff provision
Attach a copy of the federal return (IRS Form 706) if one was filed
Review the form carefully before signing double-check Social Security numbers, asset values, and arithmetic
Mail the completed return to the Estate Tax Bureau before the nine-month deadline (or request an extension)
Keep a complete copy of everything you submit for your records
Pay any tax owed with the return to stop interest from accruing
Follow up if you don't receive acknowledgment within a reasonable timeframe

Tip: Start gathering documents as soon as possible after the date of death. Appraisals take time to schedule and complete, and waiting until the last minute is the number one reason executors miss the filing deadline. If the estate is going through probate, coordinate your tax filing timeline with the probate court process so nothing falls through the cracks.