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Divorce Modifications FAQ

What you need to know about modifying child support, child custody, and alimony orders in Tulsa, Oklahoma — and what cannot be changed after a final divorce decree.

How Often Can I Ask for a Modification of Child Support in Oklahoma?

Legally, there is no strict statutory limit on how many times you can request a child support modification, but you must meet specific criteria each time. Under 43 O.S. § 118I, a child support order can be modified anytime there is a "material change in circumstances."

An involuntary job loss or significant reduction in income
A substantial promotion or increase in earning capacity
A shift in custody or parenting time arrangements
Changes in health insurance costs for the child
OKDHS Automatic Review
If you go through Oklahoma Human Services (OKDHS) Child Support Services, they automatically notify parties of their right to a review at least once every three years (36 months).
Private Attorney — File Immediately
If a sudden, significant income change would alter the guideline child support calculation by 10–20% or more, a Tulsa family law attorney can file a Motion to Modify in Tulsa County District Court immediately — without waiting for the three-year mark.
Governing Statute
43 O.S. § 118I
Authorizes modification of a child support order upon proof of a material change in circumstances. The 10–20% threshold is the practical benchmark Tulsa County courts use to evaluate whether a change is significant enough to warrant judicial review.

What Constitutes a Valid Need for a Child Custody Modification?

To modify a sole custody order in Oklahoma, the legal threshold is intentionally high to maintain stability for the child. The parent seeking the change bears the full burden of proof under the landmark Oklahoma Supreme Court case Gibbons v. Gibbons (1968 OK 77).

The Gibbons Standard — Two Required Elements
1
There has been a permanent, material, and substantial change in circumstances since the last custody order was signed.
2
As a result of this change, the child's temporal, mental, or moral welfare would be substantially better off if custody were modified.

Valid grounds that typically meet the Gibbons standard include:

Child endangerment — such as drug or alcohol abuse in the home
Severe parental alienation that damages the child's relationship with the other parent
A parental relocation exceeding 75 miles under 43 O.S. § 112.3
Important Limitation
Subtle lifestyle preferences or a parent simply changing their mind will not satisfy the Gibbons standard. Oklahoma courts require clear, documented evidence of a genuine change that materially affects the child's wellbeing.

What If We Share Joint Custody and the Arrangement Is No Longer Working?

If you and your ex-spouse share joint custody under a court-approved plan (43 O.S. § 109), the strict Gibbons standard does not apply in the same way. If the parents can no longer cooperate, communicate, or agree on major decisions affecting the child, that breakdown in cooperation itself constitutes a material change in circumstances.

What the Court Can Do
In these situations, a Tulsa County judge may terminate the joint custody agreement altogether and award sole custody to one parent based strictly on the "Best Interests of the Child" standard. The court will evaluate which parent is more likely to foster a cooperative co-parenting relationship going forward.
Governing Statute
43 O.S. § 109 governs joint custody arrangements in Oklahoma and outlines the required components of a joint parenting plan. When joint custody breaks down, the same statute provides the framework for the court to revisit and restructure the arrangement.

Can My Ex-Spouse Reduce Their Child Support Obligation by Voluntarily Taking a Lower-Paying Job?

Generally, no. Oklahoma family courts look closely at the underlying reasons for any drop in income. Under 43 O.S. § 118 and established Oklahoma case law like Garcia v. Garcia (2012 OK 81), judges evaluate whether an income reduction was made in "bad faith" to evade support obligations.

Imputed Income — How It Works
If the court determines that a parent is voluntarily unemployed or underemployed, the judge will impute income — meaning child support is calculated based on what that parent should be earning given their educational background, work history, and earning capacity, rather than their actual deflated income.
Involuntary Job Loss
A genuine, documented layoff or business closure is a valid basis for a modification request. The court will review the circumstances carefully.
Voluntary Income Reduction
Quitting a higher-paying job, refusing available work, or deliberately reducing hours to lower a support obligation will trigger income imputation by the court.

Can I Modify the Property Division Part of My Final Divorce Decree?

No. In Oklahoma, the equitable division of marital property, assets, and debts outlined in a final divorce decree is permanent and cannot be modified due to later changes in circumstances.

Modifiable After Divorce
Child custody arrangements, child support obligations, and support alimony — the court retains continuing jurisdiction over all three.
Permanently Final
Property distribution, asset division, and debt allocation are finalized once the decree is formally filed. They cannot be revisited due to changed circumstances.
Rare Exceptions
The only narrow exceptions involve proving actual fraud, misrepresentation, or a lack of jurisdiction at the time the original divorce was finalized. These are extraordinarily difficult legal standards to meet and require compelling, documented evidence. If you believe your original property division was tainted by fraud or concealment of assets, contact a Tulsa family law attorney immediately to evaluate your options.

Life Changes — Your Court Order Can Too

If your circumstances have significantly changed since your divorce was finalized, you may have legal grounds to modify your order. Contact Boeheim Freeman Law today for a free, confidential consultation with an experienced Tulsa family law attorney.

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