One of the most common questions about spousal support is how long it will last. California does not apply a single formula that determines the duration of long-term spousal support in every divorce.

The length of the marriage is an important consideration, but it is not the only one. When deciding long-term support, the court considers the circumstances applicable to the spouses, including the factors used to evaluate the amount and duration of support.

Does the “Half the Length of the Marriage” Rule Always Apply?

People sometimes hear that spousal support automatically lasts for half the length of the marriage. That is not a universal rule for California long-term spousal support.

The source materials specifically caution against treating one-half the length of the marriage as a rule that applies in every case, particularly in long-term marriages.

Duration is important, but the court must consider the other applicable circumstances rather than deciding support solely by counting the number of years the parties were married.

This is why two divorces involving marriages of similar length can potentially produce different support outcomes.

What Is Considered a Long-Term Marriage?

California spousal support law gives special significance to marriages considered to be “of long duration.”

There is a rebuttable presumption that a marriage lasting 10 years or more—from the date of marriage to the date of separation—is a marriage of long duration. However, the 10-year mark is not an absolute dividing line. In some circumstances, a marriage lasting less than 10 years can still be determined to be of long duration.

For a marriage of long duration, the court generally retains jurisdiction over spousal support unless the parties agree otherwise in writing or the court terminates support.

Retaining jurisdiction does not necessarily mean that support payments will continue indefinitely.

Retaining Jurisdiction Is Different From Ordering Support Forever

This distinction is important.

A court can retain jurisdiction over spousal support without requiring one spouse to continuously make support payments. The source materials explain that jurisdiction may even be retained while support is set at zero, preserving the ability to consider a future request.

Likewise, the fact that the court retains jurisdiction does not prevent support from being terminated in an appropriate later proceeding.

Some orders provide support for a definite period. Others provide support for a specified period while reserving jurisdiction afterward. The language of the judgment or settlement agreement can therefore be extremely important.

Read the Support Order Carefully

The duration of spousal support cannot always be determined by looking at the length of the marriage alone.

A spouse should also understand whether the order contains a termination date, whether the amount can be modified, and whether the court retains jurisdiction after payments end.

These distinctions can have significant consequences years after a divorce is finalized, making the precise language of a long-term support order an important part of the overall settlement or judgment.