Child support and spousal support are separate obligations, but they can significantly affect the same household finances. When child support ends because a child reaches adulthood under California law, the financial circumstances of both former spouses may change.

California specifically recognizes this situation. When a court has entered or retained jurisdiction over spousal support and a companion child support order terminates because the child reaches the applicable age, the termination of child support can provide a basis for requesting modification of spousal support.

Ending Child Support Can Change Both Parties’ Finances

The end of child support can affect each former spouse differently.

The parent who had been paying child support may now have more income available. Meanwhile, the former spouse who had been receiving child support may experience a reduction in household funds.

California law recognizes this shift as a potential change of circumstances for purposes of spousal support.

However, the end of child support does not automatically increase or decrease spousal support.

The statute permits the change to serve as a basis for requesting modification. The family court still retains discretion to determine whether changing spousal support is warranted under the circumstances.

There Is an Important Deadline

Timing is particularly important for this type of request.

A motion to modify spousal support based on the termination of child support because the child reached the applicable age must be filed no later than six months after the child support order terminates.

Waiting too long can therefore affect the ability to rely on this specific statutory basis for modification.

California also allows either party, in connection with such a motion, to request appointment of a vocational training counselor under the applicable Family Code provisions.

Some Divorce Agreements Already Address What Happens

The special rule does not apply in every case.

Termination of child support does not constitute a change of circumstances under this provision when the spouses’ settlement agreement or judgment already specifies what will happen to spousal support when child support ends.

The rule also does not apply when the agreement provides that spousal support is nonmodifiable or waived and the court’s jurisdiction over spousal support has been terminated. Likewise, it does not revive spousal support jurisdiction that was already terminated.

The language of the existing divorce judgment or marital settlement agreement is therefore critical.

A Change in Child Support Can Affect the Overall Support Picture

Even before child support terminates entirely, a substantial change in the amount of child support may potentially become relevant to a spousal support modification request.

California authority has recognized this particularly where the parties’ settlement contemplated an overall combined level of child and spousal support.

Parents approaching the end of a child support obligation should therefore review the spousal support provisions in their judgment rather than assuming the two issues are completely unrelated.

When California child support ends because a child reaches adulthood, the resulting financial change may create a limited opportunity to ask the court to reconsider spousal support—but the existing judgment, continuing support jurisdiction, and six-month filing deadline can all be important.