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Hawaii Estate Tax

If you leave behind more than $5.49 million, your estate might owe Hawaii estate tax.

By , J.D. | Updated by Jennie Lin, Attorney
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If you live in Hawaii and leave behind more than $5.49 million (for deaths occurring in 2023), your estate might have to pay the Hawaii estate tax. The Hawaii estate tax is separate from the federal estate tax, which is imposed only on estates worth more than $12.92 million (for deaths in 2023). So even if your estate isn't large enough to owe federal estate tax, it might still owe Hawaii estate tax.

But it's not just Hawaii residents who might owe Hawaii estate tax. If you're a nonresident but own real estate or other assets—such as a vacation home or a boat—located in Hawaii, your estate will also need to consider Hawaii estate tax rules.

Will Your Estate Owe Estate Tax?

If you die while a resident of Hawaii, the personal representative or executor of your estate will need to file the Hawaii estate tax return and pay the state estate tax if your "taxable estate" adds up to more than $5.49 million. Although the process can get quite complicated, the taxable estate is generally calculated by determining your "gross estate" and then subtracting available deductions.

Calculating the Gross Estate

The gross estate will include just about all of the property you leave behind, such as:

  • Real estate
  • Bank and investment accounts—retirement and non-retirement
  • Vehicles and other items of personal property
  • Proceeds from any life insurance policies on your life, if you owned the policies
  • Business interests (sole proprietorship, limited liability company, or closely held corporation)

Co-owned property. If you own assets with someone else, generally only your share will be included in your estate. In other words, if you and your spouse own your house, half of its value would be included in your estate.

Nonprobate assets. Notably, your gross estate also includes non-probate assets. For example, the property you hold in a revocable living trust avoids probate, but it does not avoid estate taxes, and is counted in your gross estate.

Nonresidents. If you're not a resident of Hawaii but own real estate or tangible property located in Hawaii, your estate might owe Hawaii estate tax. A ratio (essentially the value of your property that is located in Hawaii to the total value of your gross estate) is used to determine the tax your estate owes.

Calculating the Taxable Estate

Any available deductions will be subtracted from the gross estate to arrive at the taxable estate. If the deductions lower your taxable estate below $5.49 million, no estate tax will be due. These deductions include:

  • Marital deductions. Property left to a surviving spouse, no matter the amount, can be deducted from the gross estate.
  • Charitable deductions. Gifts to qualified public, charitable, and religious organizations can be deducted from the gross estate.
  • Debts and administration expenses. Debts owed and some administration expenses (funeral costs and attorney's fees, for example) can be deducted from the gross estate.

How Much Hawaii Estate Tax Will Be Due?

If your estate owes estate tax, how much will it actually owe? In Hawaii, the first $5.49 million of the estate is not taxed. On the portion that exceeds $5.49 million, the estate tax rate ranges from 10% to 20%. (Compare these rates to the current federal estate tax rate of 40%.) To calculate the exact amount of tax owed, see the table at the end of the Instructions for Form M-6.

    Portability: An Estate Tax Break for Spouses

    Hawaii, like the federal government, allows a surviving spouse to use the unused portion of a deceased spouse's estate tax exemption. This is referred to as the "portability" of the exemption. For example, if the first spouse to die does not use any of the exemption (say, because everything went to the surviving spouse under the marital deduction), then the second spouse to die will be able to use two $5.49 million exemptions—that's nearly $11 million without owing estate taxes to Hawaii. To take advantage of this provision, however, state and federal estate tax returns must be filed at the death of the first spouse to die.

    Filing the Hawaii Estate Tax Return

    The executor must file the Hawaii estate tax return and pay any tax due nine months after the date of death. The state may grant a six-month extension to file the return itself, but this extension doesn't give the executor extra time to pay the estimated tax. If the estimated tax is not paid on time, interest starts to accrue on the unpaid tax.

    If your estate owes Hawaii estate tax but not federal estate tax (that is, if you fall between the state and federal exemption amounts), your executor will still have to attach a version of the federal estate tax return with the Hawaii estate tax return; this federal return is not actually filed with the federal government, but is used by Hawaii as supporting documentation.

    Your executor will likely have to hire professional help (an experienced lawyer or CPA) to prepare the Hawaii estate tax return. The estate's funds can be used to pay for professional fees. For background information and tax forms, see the Hawaii Department of Taxation website.

    For more on estate planning issues specific to Hawaii, see Nolo's section on Hawaii Estate Planning.

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