How Child Support Is Calculated in California and What Factors Matter Most

California courts use a specific formula to calculate child support, but judgments can deviate from this formula in complex cases, and may also consider aspects such as imputed income. If you’re locked in this process, it’s important to understand how the state calculates support and what you can expect.

Overview of California Child Support Laws

The law requires both parents to support their child, and that includes money to cover the child’s living expenses, known as child support. Courts use a specific formula, established under California Family Code Section 4055, to calculate child support payments, and will consider factors such as the net income of the highest earner and the disposable income of both parties.

Child support duty typically ends when the child turns 19 or when they turn 18 and graduate high school, depending on which happens first. It also ends if they pass away, join the military, get married, or are emancipated, but it can continue if they are disabled and unable to support themselves.

Who Pays Child Support in California?

Both parents have an equal responsibility to care for the child. When the parents divorce or separate, and one of them has physical custody, the responsibility typically falls on the noncustodial parent.

However, it’s common for divorced parents to share responsibilities, in which case, the highest earning parent typically pays child support, but it ultimately comes down to income disparity between the two.

How the California Guideline Formula Works

Child support payments are based on the algebraic CS = K (HN – (H%)(TN)) formula:

• CS = represents the child support amount.
• K = The amount of money to be allocated to child support.
• HN = The net monthly disposable income of the highest earner, defined as their gross income minus deductions such as retirement contributions, taxes, and insurance premiums.
• TN = The net monthly disposable income of both parties.
• SN = The total approximate time that the highest earner will be responsible for their child, compared to the other party.

California Child Support Services has a handy child support calculator to give you an idea of the amount.

Income Considerations: What Counts (and What Doesn’t)

All employment income counts toward a parent’s gross income, including bonuses and severance pay. Benefits such as unemployment and disability also count toward gross income, as do military allowances, business income, rental income, and investment income.

Parents can subtract health insurance premiums, income taxes, payroll deductions, and some job-related expenses.

Time-Share Percentage and Why It Matters

The courts will consider how much money the parents spend on the child’s necessary living expenses, and the more they spend on caring for the child, the lower the child support payments will be on average.

In that sense, greater responsibility equates to lower child support payments. Even if the parents have joint custody of the child, the highest earner of the two may still be asked to pay child support, but it will be less than if the lower earner had sole custody.

Imputed Income and Underemployment

Imputed income is the money that a court thinks an individual could earn. It’s their potential income, and it’s based on their education, skills, and the job opportunities available to them. It effectively means that an accomplished individual and potential former high earner can’t take voluntary unemployment as a means of escaping their child support responsibilities.

The courts will carefully consider the individual’s situation, considering factors such as a recent job loss, job applications, and whether they have recently taken a lower-pay role.

If you think you may be affected by imputed income, consult a family law attorney.

Modifying an Existing Child Support Order

To modify an existing child support order, you or your former spouse must prove that there has been a significant change in circumstance, including;

• Changes in the child’s needs
• Higher or lower income
• A change in job circumstances

For example, if you receive child support from your former spouse and they have recently been given a substantial pay rise, or your child’s educational expenses have increased, you can apply to modify the child support payment.

Enforcement of Child Support in California 

The Child Support Services Department (CSSD) enforces child support cases in California. They have the power to withhold income, interrupt disability payments and lottery winnings, and issue property liens as needed.

CSSD can also revoke the individual’s passport if they owe more than $2,500 in child support payments.

In extreme circumstances, such as if the individual refuses to pay even though they have the means to do so, they can be held in contempt and may be sentenced to jail time.

Trusted Child Support Representation in California

Child support cases are complicated, and while the courts have a readymade formula, implementing it isn’t always straightforward. It’s important to have an experienced legal professional on your side, as they can guide you through this process. They’ll ensure you get the maximum amount you’re entitled to receive if you’re the custodial parent, and that you pay a fair amount if not.

Contact County Law Center today to schedule a consultation and prepare for the next step.