Estate and trust tax returns for Oregon families and trustees

The returns an Oregon estate or trust may need

When someone dies, there can be up to four separate kinds of tax returns. There is the final personal return for the year of death. There is the income tax return for the estate or trust itself, which is federal Form 1041 and Oregon Form OR-41. And there are the estate tax returns, Oregon Form OR-706 and federal Form 706, which are based on the value of what the person owned rather than on income.

Most families only need some of these. The ones that catch people off guard in Oregon are the fiduciary income tax return, which can be required even for a modest estate, and the Oregon estate tax return, which is required at a far lower value than the federal one.

If you have been named personal representative or trustee, you do not have to work out all of this alone. Tell us what you need and a licensed CPA who works with people like you gets in touch with a clear, fixed quote.

Estate and trust tax returns on Form 1041

Form 1041 is the federal income tax return filed by the fiduciary, meaning the executor or trustee. It reports the income, deductions, gains and losses of the estate or trust, and income that is held or passed out to beneficiaries. Beneficiaries receive a Schedule K-1 showing their share.

For tax year 2025, the IRS instructions say a domestic decedent's estate must file if it has gross income of $600 or more for the year, or a beneficiary who is a nonresident alien. A domestic trust must file if it has any taxable income, gross income of $600 or more regardless of taxable income, or a nonresident alien beneficiary.

Calendar year estates and trusts filing for 2025 had a due date of 4/15/2026. Fiscal year filers are due on the 15th day of the 4th month after their tax year ends. Estates can choose a fiscal year, which sometimes helps with timing, while trusts generally have to use a calendar year for Oregon.

The Oregon fiduciary return, Form OR-41

Oregon has its own fiduciary income tax return. For tax year 2025, the OR-41 instructions require it from resident estates and trusts that must file a federal Form 1041, resident estates and trusts that terminate during the year, and nonresident estates and trusts with $600 or more of federal gross income from Oregon sources.

An estate is an Oregon resident if an Oregon court appointed the personal representative or the estate is administered in Oregon. A trust is an Oregon resident if its trustee lives in Oregon or it is administered here. That matters for families with a trustee in Vancouver or out of state.

The OR-41 must use the same tax year and accounting method as the federal return, and a copy of the federal 1041 and K-1s goes with it. For 2025 calendar year filers it was due 4/15/2026. Oregon accepts the IRS automatic extension to file, but not to pay.

The Oregon estate tax and Form OR-706

In Oregon, a family that owns a house, a retirement account and some savings can reach the estate tax filing threshold. The Oregon Department of Revenue requires Form OR-706 when the gross estate is $1,000,000 or more at the date of death. The gross estate includes real and personal property inside or outside Oregon.

For deaths on or after 1/1/2022, the OR-706 is due twelve months after the date of death. Form OR-706 EXT gives six more months to file, but not more time to pay. The Oregon estate tax table in the 2026 instructions runs from 10% up to 16%, with the top rate applying to taxable estates of $9,500,000 or more.

Oregon also has a natural resource credit for estates that qualify, and the estate may choose to take all, part or none of it. A CPA will value the estate, apply the elections Oregon allows, and work with the personal representative on paying the tax from the right assets.

Federal Form 706 basics

The federal estate tax starts much higher. The IRS basic exclusion amount is $15,000,000 for people who die in 2026, up from $13,990,000 for 2025. Form 706 is required when the gross estate, plus adjusted taxable gifts and the specific gift tax exemption, is over the filing threshold for the year of death.

Form 706 is due nine months after the date of death, and Form 4768 gives an automatic six month extension to file. Interest still runs on unpaid tax during an extension.

Some estates file a Form 706 even when no federal tax is due. The IRS says a return must be filed if the estate elects to pass the deceased spouse's unused exclusion amount to the surviving spouse, an election often called portability. For a married couple whose combined assets could grow, that election can be valuable, and it has to be made on a timely return.

What working with a CPA looks like

The CPA you are matched with will start with a list of assets and debts, the will or trust document, and any prior tax returns. They will tell you which returns are needed, the deadlines for each, and what records to gather, such as date of death values for real estate and brokerage accounts.

From there they prepare the final personal return, the 1041 and OR-41 for each year the estate or trust is open, and the OR-706 or Form 706 if required. They can also prepare K-1s for beneficiaries and answer questions from heirs, which takes some pressure off the person in charge.

Common questions