How Does California Handle Support When Income Includes Bonuses?
Quick Answer: California uses a Smith Ostler order. The court sets base child or spousal support on regular, predictable income, then adds a set percentage of any bonus, commission, or stock that comes in, paid if and when it is received. It keeps support fair when income swings, without a return to court after every bonus.
Picture a paying parent with a modest base salary and a large, unpredictable annual bonus. Base support alone shortchanges the family in a strong year, while guessing at the bonus overcharges the parent in a lean one. California solved this puzzle decades ago with a tool named for a single appellate case, and it remains the standard answer whenever a paycheck comes with a variable component.
What Is a Smith Ostler Order?
A Smith Ostler order, named for the 1990 California decision In re Marriage of Ostler and Smith, splits a support obligation into two layers. The court first calculates base support using only regular, recurring income. It then adds a provision requiring the paying party to hand over a set percentage of any additional variable income, such as a bonus, commission, or vesting stock, but only if and when that money is actually received. The order is set once and self adjusts as income rises and falls.
Why Variable Income Breaks a Normal Order
A standard support order is a single fixed monthly number, which works cleanly when income is steady. It breaks down the moment a paycheck includes bonuses, commissions, overtime, or stock that changes year to year. Set support on a big bonus year and the payer drowns in a lean one. Set it on the base alone and the family never shares in the good years. The Smith Ostler order removes the guesswork entirely.
How the Two Layers Work
• Base support is calculated from the payer's regular, predictable salary or wages.
• A set percentage is applied to any bonus, commission, or stock income on top of that base.
• Paid if and when received, so the payer owes the additional support only on money that actually arrives.
• Applied to child support, spousal support, or both, each with its own percentage depending on the family.
How the Percentage Is Set
The Smith Ostler percentage is generally derived from the statewide guideline the same way base support is, so it reflects the same proportions the guideline would produce. In the original case, the court ordered ten percent of the bonus for each child plus fifteen percent as spousal support, thirty five percent of the gross bonus in total. Your percentage will depend on the guideline result in your own case, and child and spousal support can carry different percentages.
What Income It Covers
• Annual and performance bonuses, the classic trigger for a Smith Ostler order.
• Sales commissions, for a payer whose earnings swing with results.
• Overtime pay, when it is significant and irregular.
• Vesting stock and profit sharing, which count as income under Family Code section 4058.
Building a Strong Order
A weak Smith Ostler order invites future fights. A strong one defines exactly which income is covered, requires prompt reporting with pay stubs and vesting statements, sets a clear deadline for the additional payment, and includes a true up so nothing is missed or double counted. This is a place where careful drafting and a firm grasp of the numbers pay off, because a modest percentage applied to a large bonus adds up to real money over the life of the order.
Reporting and Enforcement
An order is only as good as its reporting. A strong Smith Ostler provision requires the paying party to disclose variable income promptly, with pay stubs, vesting statements, and often an annual exchange of tax returns, and to pay the additional support within a set number of days after the money lands. Without that duty to report, the receiving party is left guessing about bonuses they cannot see, and enforcement becomes a chase. Building the reporting obligation into the order up front is what makes it collectible later.
When a Smith Ostler Order May Not Fit
It is not the right tool for every case. When income is stable and predictable, a Smith Ostler order just adds complexity for no benefit, and a single fixed number is cleaner. When the variable component is small, the parties may prefer to fold a reasonable estimate into base support and be done. And when the payer controls the timing of their own income, such as a business owner who can defer a bonus, a percentage order can be gamed, which is where earning capacity and careful drafting come back into play.
Frequently Asked Questions
Do I have to pay support on a bonus I might not receive?
No. A Smith Ostler order applies only if and when the variable income is actually paid. If the bonus never comes, there is no additional support owed on it.
What income does the order cover?
Typically bonuses, commissions, significant overtime, and vesting stock, the variable pieces on top of a regular salary. The order should spell out exactly which categories are included.
Can a Smith Ostler order apply to spousal support?
Yes. It can apply to child support, spousal support, or both, each with its own percentage set from the guideline analysis.
What happens if my bonus drops in a later year?
The order self adjusts. Because it is a percentage of whatever variable income you receive, a smaller bonus simply means a smaller additional payment, with no need to return to court.
Get a Support Order That Fits Real Income
If bonuses, commissions, or stock make income swing, a well built Smith Ostler order keeps support fair for everyone without endless trips back to court. At The Geller Firm, you work directly with Attorney Michael Geller, whose legal and business training is built for exactly this kind of numbers work. Call (415) 840 0570 or visit gellerfirm.com to set up a confidential consultation.