If you're going through a divorce in California, understanding the financial framework matters before you sit down with an attorney — or anyone else. California has some of the most distinctive divorce finance rules in the country, and knowing the basics can help you ask better questions and make more informed decisions.
This page covers how California generally handles property division, spousal support, child support, and retirement accounts. It's an overview, not a deep dive — for more detail on any topic, the links throughout this page lead to full guides.
- California's community property system and what it means for assets and debts
- How spousal support is generally approached — and the 2026 tax change
- How child support is calculated under California's guideline formula
- What happens to retirement accounts and when a QDRO is needed
- A free calculator to estimate your numbers
Property Division: California Is a Community Property State
California is one of nine community property states in the U.S. That distinction shapes nearly every financial conversation in a California divorce.
Under California Family Code Section 2550, assets and debts acquired during the marriage are generally treated as equally owned by both spouses — regardless of whose name is on the account, who earned the money, or who made the payments. When a marriage ends, community property is generally subject to equal division.
Separate property — assets owned before the marriage, along with most gifts and inheritances received during the marriage — is generally not subject to division and stays with the spouse who owns it. However, the line between community and separate property can blur over time, particularly when accounts are mixed together or when separate property is used to improve a shared asset. This is called commingling, and it's one of the more common sources of disputes in California divorce cases.
Suppose one spouse owned a savings account with $20,000 before the marriage. During the marriage, both spouses deposit paychecks into that same account over several years. The original $20,000 may still be separate property — but documenting which portion is separate and which is community can become complex. A licensed family law attorney can help trace the character of commingled funds.
Community debts are generally subject to equal division as well. Credit cards, mortgages, car loans, and other obligations taken on during the marriage are typically considered community debts — even if only one spouse's name is on the account.
| Generally Community Property | Generally Separate Property |
|---|---|
| Income earned during the marriage | Assets owned before the marriage |
| Home purchased during the marriage | Gifts received by one spouse during marriage |
| Retirement contributions made during marriage | Inheritances received during marriage |
| Debts incurred during the marriage | Property acquired after date of separation |
| Business value built during the marriage | Separate property kept clearly separate |
Spouses who reach their own agreement — through negotiation, mediation, or collaborative divorce — can divide assets differently than the default 50/50. That agreement, called a Marital Settlement Agreement, must be approved by the court. If no agreement is reached, a judge applies the community property rules and divides marital assets equally.
For a deeper look at what happens to the family home specifically, see What Happens to the House in a Divorce?
Spousal Support: No Formula, 14 Factors
California does not use a single statewide formula to set permanent spousal support. Instead, judges are required to weigh 14 factors listed in Family Code Section 4320 before setting the amount and duration of long-term support.
Those factors include each spouse's earning capacity, the standard of living during the marriage, how long the marriage lasted, whether one spouse's career was affected by time spent on domestic duties, and the age and health of both parties, among others. The weight given to any factor depends entirely on the specifics of the case.
During the divorce process itself — before a final judgment — courts often use a temporary guideline formula. Many California counties use a formula that considers a percentage of the higher earner's net income minus a percentage of the lower earner's net income. This temporary amount is not binding once the divorce is finalized.
For marriages of 10 years or longer, California courts retain ongoing jurisdiction over spousal support under Family Code Section 4336. This means support may continue for an extended period — how long depends on the specific circumstances of the case, not a fixed rule. For marriages under 10 years, support commonly lasts approximately half the length of the marriage, though courts retain discretion to deviate from that general pattern.
For a full breakdown of how California spousal support works, see How is Alimony Calculated in California? and How Long Do I Have to Pay Alimony?
Child Support: A Mandatory Guideline Formula
Unlike spousal support, California child support is not discretionary. It is calculated using a mandatory statewide guideline formula set out in Family Code Section 4055. Courts are generally required to follow the guideline result unless specific circumstances justify a deviation.
The formula considers both parents' net monthly incomes, the number of children, and the percentage of time each parent spends with the child. Because custodial time directly affects the calculation, even modest differences in a parenting schedule can meaningfully change the support amount.
As of September 2025, Senate Bill 343 updated the formula's K-factor bands to better reflect today's income levels. The update also shifted how certain add-on expenses — such as childcare and uninsured medical costs — are divided. Under SB 343, those costs are now generally split in proportion to each parent's income rather than equally, which affects the total obligation for each parent.
Child support in California generally continues until a child turns 18, or 19 if the child is still a full-time high school student living with a parent. For more detail on how duration is determined, see How Long Do I Have to Pay Child Support? and How is Child Support Calculated?
Retirement Accounts: Community Property Rules Apply
The portion of a retirement account accumulated during the marriage is generally considered community property in California — even if the account is held only in one spouse's name. That marital portion is typically subject to equal division.
Dividing an employer-sponsored retirement plan such as a 401(k) or pension requires a separate court order called a Qualified Domestic Relations Order, or QDRO. A QDRO instructs the plan administrator to transfer the awarded portion to the receiving spouse. Without a properly prepared and approved QDRO, the transfer cannot happen — and attempting to withdraw funds without one may trigger taxes and early withdrawal penalties.
IRAs are handled differently. They do not require a QDRO. Instead, they are divided through a process called a transfer incident to divorce, which requires specific language in the divorce decree and coordination with the financial institution.
Each retirement account requires its own separate order, which is why couples with multiple accounts — a 401(k), a pension, and an IRA, for example — need to address each one individually in the settlement.
For a full plain English explanation, see What is a QDRO? and What Happens to My 401k in a Divorce?
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