For decades, spousal support in California came with a tax structure that quietly subsidized it. The payer deducted the payments. The recipient declared the income. Because the payer was usually in the higher bracket, the arrangement moved income from a high rate to a lower one, and the government effectively absorbed part of the cost.
That structure ended at the federal level in 2019. California kept its own version alive for another seven years. As of January 1, 2026, it is gone here too, and the change was made in a bill almost nobody outside tax practice read.
What SB 711 Did
Senate Bill 711, authored by Senator McNerney and approved on October 1, 2025, as Chapter 231 of the Statutes of 2025, is a tax conformity measure. Its subject line reads “Taxation: federal conformity,” which is one reason it drew so little attention in family law.
Buried in it are two provisions that matter enormously to anyone divorcing in California.
The bill adds Revenue and Taxation Code sections preserving the older federal treatment of alimony, applying Internal Revenue Code sections 71 and 215 “as [they] read on January 1, 2015.” Then it withdraws that preservation, providing that it “shall not apply for any divorce or separation instrument executed after December 31, 2025,” or to an earlier instrument later modified where the modification expressly adopts the new rules. The full text is on the California Legislative Information System.
The practical translation: for any agreement executed on or after January 1, 2026, the paying spouse can no longer deduct spousal support on a California return, and the recipient no longer reports it as California income.
Why This Makes Support More Expensive
The deduction was not a rounding error. It was a structural feature that changed what a given support number actually cost.
Under the old rules, a dollar of support reduced the payer’s state taxable income by a dollar, so the real after-tax cost was meaningfully less than face value. The recipient paid tax on it, usually at a lower rate.
Remove the deduction and the payer bears the full pre-tax cost of every dollar. The recipient’s position improves, because the money now arrives untaxed at the state level. But the total available to the household is smaller, because the rate arbitrage that funded part of the payment no longer exists.
Where this hits hardest
The effect scales with income and with the spread between the two spouses’ brackets. Where one spouse earned substantially more, and support is significant and long in duration, the lost deduction represents real money over the life of the order. In a state with some of the highest marginal rates in the country, this is not a technicality.
The Transition Rules Are the Trap
The governing date is when the divorce or separation instrument was executed, not the date of separation and not the date the case was filed.
Pre-2026 instruments are grandfathered
Instruments executed on or before December 31, 2025 keep the old treatment. Support stays deductible to the payer and taxable to the recipient.
Post-2026 instruments follow federal treatment
Instruments executed on or after January 1, 2026 fall under the new rules: no state deduction, no state inclusion.
Modifications are the dangerous category
An older order keeps its grandfathered treatment unless a later modification expressly provides that the new rules apply. A routine modification drafted without attention to this could forfeit a valuable tax position through language nobody focused on.
Anyone with a pre-2026 order contemplating a modification should treat the tax characterization as a negotiated term. The Franchise Tax Board maintains guidance on how alimony is treated for California purposes, and has added a field to the state return capturing the date of the original agreement.
What Changes at the Negotiating Table
The most important consequence is that support figures negotiated under the old assumptions no longer mean what they used to. A number that felt fair when it was deductible is a materially heavier obligation without the deduction, and anyone anchoring on comparables from before 2026 is comparing figures that are not equivalent.
This raises the value of alternatives that were always available but often underused: adjusting the support figure to reflect after-tax reality, restructuring through property division where the estate allows it, and modeling the actual after-tax position of both households rather than negotiating a gross number.
Because the change is recent and the transition rules turn on drafting details, attorneys handling divorce cases in Orange County are treating execution timing and modification language as substantive negotiating points.
What to Do If You Are Divorcing Now
If your matter is pending, ask how the change affects the numbers being discussed, and whether any figures under consideration were derived from pre-2026 comparables.
If you already have an order from before 2026, you are grandfathered, and a modification could change that. Do not modify without addressing it explicitly.
If you are the recipient, recognize that your after-tax position at the state level has improved even though the headline number may be lower.
And in either position, get the tax question answered by someone who models it rather than describes it. The difference between the old rules and the new ones is not conceptual. It is arithmetic, and it runs for the length of the order.
