Deduction — Qualified family-owned business interests.

RCW 83.100.048
in effect
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*** CHANGE IN 2026 *** (SEE 6113-S.SL ) *** (1) For the purposes of determining the tax due under this chapter, a deduction is allowed for the value of the decedent's qualified family-owned business interests, not to exceed the applicable deduction amount, if: (a) The value of the decedent's qualified family-owned business interests exceed 50 percent of the decedent's Washington taxable estate determined without regard to the deduction for the applicable exclusion amount; (b) During the eight-year period ending on the date of the decedent's death, there have been periods aggregating five years or more during which: (i) Such interests were owned by the decedent or a member of the decedent's family; (ii) There was material participation, within the meaning of section 2032A(e)(6) of the internal revenue code, by the decedent or a member of the decedent's family in the operation of the trade or business to which such interests relate; (c) The qualified family-owned business interests are acquired by any qualified heir from, or passed to any qualified heir from, the decedent, within the meaning of RCW 83.100.046 (2), and the decedent was at the time of his or her death a citizen or resident of the United States; and (d) The value of the decedent's qualified family-owned business interests is not more than $6,000,000. (2)(a) Only amounts included in the decedent's federal taxable estate may be deducted under this subsection. (b) Amounts deductible under RCW 83.100.046 may not be deducted under this section. (3)(a) There is imposed an additional estate tax on a qualified heir if, within three years of the decedent's death and before the date of the qualified heir's death: (i) The material participation requirements described in section 2032A(c)(6)(b)(ii) of the internal revenue code are not met with respect to the qualified family-owned business interest which was acquired or passed from the decedent; (ii) The qualified heir disposes of any portion of a qualified family-owned business interest, other than by a disposition to a member of the qualified heir's family or a person with an ownership interest in the qualified family-owned business or through a qualified conservation contribution under section 170(h) of the internal revenue code; (iii) The qualified heir loses United States citizenship within the meaning of section 877 of the internal revenue code or with respect to whom section 877(e)(1) applies, and such heir does not comply with the requirements of section 877(g) of the internal revenue code; or (iv) The principal place of business of a trade or business of the qualified family-owned business interest ceases to be located in the United States. (b) The amount of the additional estate tax imposed under this subsection is equal to the amount of tax savings under this section with respect to the qualified family-owned business interest acquired or passed from the decedent. (c) Interest applies to the tax due under this subsection for the period beginning on the date that the estate tax liability was due under this chapter and ending on the date the additional estate tax due under this subsection is paid. Interest under this subsection must be computed as provided in RCW 83.100.070 (2). (d) The tax imposed by this subsection is due the day that is six months after any taxable event described in (a) of this subsection occurred and must be reported on a return as provided by the department. (e) The qualified heir is personally liable for the additional tax imposed by this subsection unless he or she has furnished a bond in favor of the department for such amount and for such time as the department determines necessary to secure the payment of amounts due under this subsection. The qualified heir, on furnishing a bond satisfactory to the department, is discharged from personal liability for any additional tax and interest under this subsection and is entitled to a receipt or writing showing such discharge. (f) Amounts due under this subsection attributable to any qualified family-owned business interest are secured by a lien in favor of the state on the property in respect to which such interest relates. The lien under this subsection (3)(f) arises at the time the Washington return is filed on which a deduction under this section is taken and continues in effect until: (i) The tax liability under this subsection has been satisfied or has become unenforceable by reason of lapse of time; or (ii) the department is satisfied that no further tax liability will arise under this subsection. (g) Security acceptable to the department may be substituted for the lien imposed by (f) of this subsection. (h) For purposes of the assessment or correction of an assessment for additional taxes and interest imposed under this subsection, the limitations period in RCW 83.100.095 begins to run on the due date of the return required under (d) of this subsection. (i) For purposes of this subsection, a qualified heir may not be treated as disposing of an interest described in section 2057(e)(1)(A) of the internal revenue code by reason of ceasing to be engaged in a trade or business so long as the property to which such interest relates is used in a trade or business by any member of the qualified heir's family. (4)(a) The department may require a taxpayer claiming a deduction under this section to provide the department with the names and contact information of all qualified heirs. (b) The department may also require any qualified heir to submit to the department on an ongoing basis such information as the department determines necessary or useful in determining whether the qualified heir is subject to the additional tax imposed in subsection (3) of this section. The department may not require such information more frequently than twice per year. The department may impose a penalty on a qualified heir who fails to provide the information requested within 30 days of the date the department's written request for the information was sent to the qualified heir. The amount of the penalty under this subsection is $500 and may be collected in the same manner as the tax imposed under subsection (3) of this section. (5) For purposes of this section, references to section 2057 of the internal revenue code refer to section 2057 of the internal revenue code, as existing on December 31, 2003. (6) For purposes of this section, the following definitions apply: (a) "Applicable deduction amount" means: (i) $2,500,000 for estates of decedents dying on or after July 1, 2014, but before July 1, 2025; (ii) $3,000,000 for estates of decedents dying on or after July 1, 2025, but before July 1, 2026; and (iii) For estates of decedents dying in calendar year 2026 and each calendar year thereafter, the amount in (a)(ii) of this subsection must be adjusted annually, except as otherwise provided in this subsection (6)(a)(iii). The annual adjustment is determined by multiplying $3,000,000 by the sum of one and the percentage by which the most recent October consumer price index exceeds the consumer price index for October 2024, and rounding the result to the nearest $1,000. No adjustment is made for a calendar year if the adjustment would result in the same or a lesser applicable deduction amount than the applicable deduction amount for the immediately preceding calendar year. (b) "Consumer price index" has the same meaning as in RCW 83.100.020 . (c) "Member of the decedent's family" and "member of the qualified heir's family" have the same meaning as "member of the family" in RCW 83.100.046 . (d) "Qualified family-owned business interest" has the same meaning as provided in section 2057(e) of the internal revenue code of 1986. (e) "Qualified heir" has the same meaning as provided in section 2057(i) of the internal revenue code of 1986. (7) This section applies to the estates of decedents dying on or after January 1, 2014. (1) For the purposes of determining the tax due under this chapter, a deduction is allowed for the value of the decedent's qualified family-owned business interests, not to exceed the applicable deduction amount, if: (a) The value of the decedent's qualified family-owned business interests exceed 50 percent of the decedent's Washington taxable estate determined without regard to the deduction for the applicable exclusion amount; (b) During the eight-year period ending on the date of the decedent's death, there have been periods aggregating five years or more during which: (i) Such interests were owned by the decedent or a member of the decedent's family; (ii) There was material participation, within the meaning of section 2032A(e)(6) of the internal revenue code, by the decedent or a member of the decedent's family in the operation of the trade or business to which such interests relate; (c) The qualified family-owned business interests are acquired by any qualified heir from, or passed to any qualified heir from, the decedent, within the meaning of RCW 83.100.046 (2), and the decedent was at the time of his or her death a citizen or resident of the United States; and (d) The value of the decedent's qualified family-owned business interests is not more than $6,000,000. (2)(a) Only amounts included in the decedent's federal taxable estate may be deducted under this subsection. (b) Amounts deductible under RCW 83.100.046 may not be deducted under this section. (3)(a) There is imposed an additional estate tax on a qualified heir if, within three years of the decedent's death and before the date of the qualified heir's death: (i) The material participation requirements described in section 2032A(c)(6)(b)(ii) of the internal revenue code are not met with respect to the qualified family-owned business interest which was acquired or passed from the decedent; (ii) The qualified heir disposes of any portion of a qualified family-owned business interest, other than by a disposition to a member of the qualified heir's family or a person with an ownership interest in the qualified family-owned business or through a qualified conservation contribution under section 170(h) of the internal revenue code; (iii) The qualified heir loses United States citizenship within the meaning of section 877 of the internal revenue code or with respect to whom section 877(e)(1) applies, and such heir does not comply with the requirements of section 877(g) of the internal revenue code; or (iv) The principal place of business of a trade or business of the qualified family-owned business interest ceases to be located in the United States. (b) The amount of the additional estate tax imposed under this subsection is equal to the amount of tax savings under this section with respect to the qualified family-owned business interest acquired or passed from the decedent. (c) Interest applies to the tax due under this subsection for the period beginning on the date that the estate tax liability was due under this chapter and ending on the date the additional estate tax due under this subsection is paid. Interest under this subsection must be computed as provided in RCW 83.100.070 (2). (d) The tax imposed by this subsection is due the day that is six months after any taxable event described in (a) of this subsection occurred and must be reported on a return as provided by the department. (e) The qualified heir is personally liable for the additional tax imposed by this subsection unless he or she has furnished a bond in favor of the department for such amount and for such time as the department determines necessary to secure the payment of amounts due under this subsection. The qualified heir, on furnishing a bond satisfactory to the department, is discharged from personal liability for any additional tax and interest under this subsection and is entitled to a receipt or writing showing such discharge. (f) Amounts due under this subsection attributable to any qualified family-owned business interest are secured by a lien in favor of the state on the property in respect to which such interest relates. The lien under this subsection (3)(f) arises at the time the Washington return is filed on which a deduction under this section is taken and continues in effect until: (i) The tax liability under this subsection has been satisfied or has become unenforceable by reason of lapse of time; or (ii) the department is satisfied that no further tax liability will arise under this subsection. (g) Security acceptable to the department may be substituted for the lien imposed by (f) of this subsection. (h) For purposes of the assessment or correction of an assessment for additional taxes and interest imposed under this subsection, the limitations period in RCW 83.100.095 begins to run on the due date of the return required under (d) of this subsection. (i) For purposes of this subsection, a qualified heir may not be treated as disposing of an interest described in section 2057(e)(1)(A) of the internal revenue code by reason of ceasing to be engaged in a trade or business so long as the property to which such interest relates is used in a trade or business by any member of the qualified heir's family. (4)(a) The department may require a taxpayer claiming a deduction under this section to provide the department with the names and contact information of all qualified heirs. (b) The department may also require any qualified heir to submit to the department on an ongoing basis such information as the department determines necessary or useful in determining whether the qualified heir is subject to the additional tax imposed in subsection (3) of this section. The department may not require such information more frequently than twice per year. The department may impose a penalty on a qualified heir who fails to provide the information requested within 30 days of the date the department's written request for the information was sent to the qualified heir. The amount of the penalty under this subsection is $500 and may be collected in the same manner as the tax imposed under subsection (3) of this section. (5) For purposes of this section, references to section 2057 of the internal revenue code refer to section 2057 of the internal revenue code, as existing on December 31, 2003. (6) For purposes of this section, the following definitions apply: (a) "Applicable deduction amount" means: (i) $2,500,000 for estates of decedents dying on or after July 1, 2014, but before July 1, 2025; (ii) $3,000,000 for estates of decedents dying on or after July 1, 2025, but before July 1, 2026; and (iii) For estates of decedents dying in calendar year 2026 and each calendar year thereafter, the amount in (a)(ii) of this subsection must be adjusted annually, except as otherwise provided in this subsection (6)(a)(iii). The annual adjustment is determined by multiplying $3,000,000 by the sum of one and the percentage by which the most recent October consumer price index exceeds the consumer price index for October 2024, and rounding the result to the nearest $1,000. No adjustment is made for a calendar year if the adjustment would result in the same or a lesser applicable deduction amount than the applicable deduction amount for the immediately preceding calendar year. (b) "Consumer price index" has the same meaning as in RCW 83.100.020 . (c) "Member of the decedent's family" and "member of the qualified heir's family" have the same meaning as "member of the family" in RCW 83.100.046 . (d) "Qualified family-owned business interest" has the same meaning as provided in section 2057(e) of the internal revenue code of 1986. (e) "Qualified heir" has the same meaning as provided in section 2057(i) of the internal revenue code of 1986. (7) This section applies to the estates of decedents dying on or after January 1, 2014.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=83.100&full=trueFetched: 6/29/2026
RCW 83.100.048 — Deduction — Qualified family-owned business interests | Revised Code of Washington | Corpus