(A) If an obligor or obligee under a child support order requests that the court modify the amount of child support required to be paid pursuant to the child support order, the court shall recalculate the amount of support that would be required to be paid under the child support order in accordance with the schedule and the applicable worksheet . If that amount as recalculated is more than ten per cent greater than or more than ten per cent less than the amount of child support required to be paid pursuant to the existing child support order, the deviation from the recalculated amount that would be required to be paid under the schedule and the applicable worksheet shall be considered by the court as a change of circumstance substantial enough to require a modification of the child support amount.
(B) If the court determines that the medical needs of the child are not being met because of inadequate health insurance coverage, the inadequate coverage shall be considered by the court as a change of circumstance that is substantial enough to require a modification of the child support order.
(C) If the court determines that the amount of child support required to be paid under the child support order should be changed due to a substantial change of circumstances that was not contemplated at the time of the issuance of the original child support order or the last modification of the child support order, the court shall modify the amount of child support required to be paid under the child support order to comply with the schedule and the applicable worksheet , unless the court determines that those amounts calculated pursuant to the basic child support schedule and pursuant to the applicable worksheet would be unjust or inappropriate and therefore not in the best interest of the child and enters in the journal the figure, determination, and findings specified in section 3119.22 of the Revised Code.
Last updated February 2, 2026 at 11:31 AM
Notes of Decisions
Cited in 133
cases (33 in the last 5 years), 2005–2026 · leading case: Mossing-Landers v. Landers, 2016-Ohio-7625, 73 N.E.3d 1060.
Mossing-Landers v. Landers, 2016-Ohio-7625, 73 N.E.3d 1060. · cites it 23דParties are entitled to file for modification at any time under R.C. 3119.79, assuming they can prove a change in circumstances under that section, and assuming they did not agree to forego attempts to modify support.”
Phelps v. Saffian, 2016-Ohio-5514. · cites it 9ד{¶13} When the parties to a child support order collectively earn more than $150,000, what constitutes a substantial change of circumstances from the original support order is unclear.”
Funkhouser v. Funkhouser, 2019-Ohio-733. · cites it 10ד{¶ 35} Appellant’s request for the trial court to modify the existing child support order was governed by R.C. 3119.79. Carver v. Carver, 6th Dist.”
Haun v. Haun, 2019-Ohio-5408. · cites it 10ד{¶9} R.C. 3119.79 governs motions to modify child support.”
Adams v. Adams, 2012-Ohio-5131. · cites it 13ד{¶20} R.C. 3119.79 sets forth the necessary criteria and methodology for a trial court to modify an existing child support order as follows: (A) If an obligor or obligee under a child support order requests that the court modify the amount of support required to be paid pursuant…”
Abbey v. Peavy, 2014-Ohio-3921. · cites it 11ד” {¶17} Abbey argues that the Bonner court and, thus, the magistrate in this case, interpreted R.C. 3119.79 incorrectly. Abbey maintains that under R.”
Hock v. Soles, 2022-Ohio-3531, 197 N.E.3d 55. · cites it 20דCHILD SUPPORT MODIFICATION STATUTE {¶19} The parties contest the relationship between division (A) and (C) of R.C. 3119.79. The statute contains the following three sections: (A) If an obligor or obligee under a child support order requests that the court modify the amount of…”
Abrams v. Abrams, 2017-Ohio-4319, 92 N.E.3d 368. · cites it 5ד{¶ 40} " 'In order to modify child support, the trial court must find a substantial change in circumstances, which is defined in R.C. 3119.79(A) as a ten-percent deviation from the amount of child support previously ordered.”
Sapinsley v. Sapinsley, 869 N.E.2d 702 (Ohio Ct. App. 1st Dist. 2007). · cites it 7דWe held that the trial court erred by failing to “strictly comply with the terms of R.C. 3119.79 by completing a child-support worksheet and including it in the record.”
Adams v. Adams, 2013-Ohio-2947. · cites it 10ד79 controls the modification of child support orders and provides, in pertinent part, as follows: (A) If an obligor or obligee under a child support order requests that the court modify the amount of support required to be paid pursuant to the child support order, the court…”
Mahlerwein v. Mahlerwein, 828 N.E.2d 153 (Ohio Ct. App. 4th Dist. 2005). · cites it 3ד{¶ 33} R.C. 3119.79(A) provides: “If an obligor or obligee under a child support order requests that the court modify the amount of support required to be paid pursuant to the child support order, the court shall recalculate the amount of *576 support that would be required to…”
Trombley v. Trombley, 2018-Ohio-1880. · cites it 4דPursuant to R.C. 3119.79, a prior child support obligation may not be modified absent a showing of a substantial change in circumstances.”
Mossing-Landers v. Landers, 2016-Ohio-7625, 73 N.E.3d 1060. “Parties are entitled to file for modification at any time under R.C. 3119.79, assuming they can prove a change in circumstances under that section, and assuming they did not agree to forego attempts to modify support.”
Abrams v. Abrams, 2017-Ohio-4319, 92 N.E.3d 368. “{¶ 40} " 'In order to modify child support, the trial court must find a substantial change in circumstances, which is defined in R.C. 3119.79(A) as a ten-percent deviation from the amount of child support previously ordered.”
Funkhouser v. Funkhouser, 2019-Ohio-733. “{¶ 35} Appellant’s request for the trial court to modify the existing child support order was governed by R.C. 3119.79. Carver v. Carver, 6th Dist.”
Sapinsley v. Sapinsley, 869 N.E.2d 702 (Ohio Ct. App. 1st Dist. 2007). “We held that the trial court erred by failing to “strictly comply with the terms of R.C. 3119.79 by completing a child-support worksheet and including it in the record.”
Mahlerwein v. Mahlerwein, 828 N.E.2d 153 (Ohio Ct. App. 4th Dist. 2005). “{¶ 33} R.C. 3119.79(A) provides: “If an obligor or obligee under a child support order requests that the court modify the amount of support required to be paid pursuant to the child support order, the court shall recalculate the amount of *576 support that would be required to…”
Ohio Rev. Code § 3119.79(B): 3 cases
Mossing-Landers v. Landers, 2016-Ohio-7625, 73 N.E.3d 1060. “Parties are entitled to file for modification at any time under R.C. 3119.79, assuming they can prove a change in circumstances under that section, and assuming they did not agree to forego attempts to modify support.”
Phelps v. Saffian, 2016-Ohio-5514. “{¶13} When the parties to a child support order collectively earn more than $150,000, what constitutes a substantial change of circumstances from the original support order is unclear.”
Haun v. Haun, 2019-Ohio-5408. “{¶9} R.C. 3119.79 governs motions to modify child support.”
Adams v. Adams, 2013-Ohio-2947. “79 controls the modification of child support orders and provides, in pertinent part, as follows: (A) If an obligor or obligee under a child support order requests that the court modify the amount of support required to be paid pursuant to the child support order, the court…”
Adams v. Adams, 2012-Ohio-5131. “{¶20} R.C. 3119.79 sets forth the necessary criteria and methodology for a trial court to modify an existing child support order as follows: (A) If an obligor or obligee under a child support order requests that the court modify the amount of support required to be paid pursuant…”
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