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Last Modified on Sep 23, 2026
California Spousal Support and Taxes in 2026: What SB 711 Means for East Bay Divorces
By Kent Tierney | Tierney Law Group, P.C.
For years, California and federal tax law treated spousal support differently. After the federal Tax Cuts and Jobs Act eliminated the alimony deduction for many newer divorce instruments, California continued — for a time — to allow different state-tax treatment under older Internal Revenue Code rules that California had kept in place.
That divergence largely ended with Senate Bill 711.
Approved by the Governor on October 1, 2025, SB 711 is a broad California tax-conformity bill. Buried in that bill are targeted provisions that change how California treats alimony and separate-maintenance payments for state income-tax purposes. For many East Bay couples negotiating divorce or legal separation in 2026 and beyond, the practical result is simple: new support agreements generally no longer get special California state-tax treatment that differed from federal law.
What Changed Under SB 711
SB 711 amended the Revenue and Taxation Code so that California’s older alimony inclusion and deduction rules — tied to Internal Revenue Code sections 71 and 215 as they read on January 1, 2015 — do not apply to:
- any divorce or separation instrument executed after December 31, 2025; or
- any instrument executed on or before December 31, 2025 that is later modified, if the modification expressly says the new SB 711 amendments apply.
In practical terms, for instruments executed after December 31, 2025:
- the paying spouse generally cannot deduct spousal support on the California return; and
- the receiving spouse generally does not include those payments as California taxable income.
That lines California up with the federal treatment that has applied to many post-2018 instruments for years: support is typically neither deductible by the payor nor taxable to the recipient.
Older instruments are different. If your judgment or marital settlement agreement was executed on or before December 31, 2025, and it has not been modified in a way that expressly adopts the new rules, the prior California treatment may still apply. That grandfathering is one of the most important drafting and modification issues in current support negotiations.
Why Tax Treatment Matters in Family Court
Spousal support itself is still decided under California Family Code section 4320. SB 711 did not rewrite the familiar factors: length of marriage, earning capacity, standard of living, age and health, domestic violence, and the rest of the statutory list.
What changed is the after-tax economics of the number the parties put on paper.
When support was deductible for the payor and taxable to the recipient under older California rules, the same “gross” support figure could mean one thing to each side after taxes. When support is neither deductible nor taxable, the parties are often negotiating closer to true after-tax dollars. That can change:
- how temporary and permanent support proposals are framed
- whether a buyout or property trade makes more sense than ongoing monthly support
- how DissoMaster or similar printouts should be interpreted in settlement talks
- whether modifying an older order is worth the tax consequences of expressly opting into the new rules
Alameda County’s local temporary-support guideline under Local Rule 5.70 is still a discretionary tool for temporary orders. Tax conformity does not replace that guideline, but it can change how lawyers and clients evaluate the real cost of a proposed temporary or long-term award.
New Orders vs. Old Orders: The Practical Split
Think of current cases in three buckets:
1. Brand-new instruments after December 31, 2025
California generally follows the no-deduction / no-inclusion model for state tax purposes. Build that assumption into settlement math from the start.
2. Pre-January 1, 2026 instruments left alone
Older California tax treatment may still apply. Do not assume a 2026 tax return will look like a new-order return just because the calendar flipped.
3. Pre-January 1, 2026 instruments that are modified
Modification does not automatically flip the tax rules. Under SB 711’s text, the new treatment applies to a modified older instrument only if the modification expressly provides that the amendments apply. That makes the wording of a stipulation or modified judgment a tax event, not just a family-law event.
Because tax results can turn on exact language and timing, parties should involve both family-law counsel and a qualified tax professional before rushing a modification solely to “update” support.
How This Interacts With Child Support and High-Asset Cases
SB 711 is not a child-support statute. California’s guideline child-support formula under Family Code sections 4050–4076 remains in place.
Even so, support packages are often negotiated together. In Tri-Valley and East Bay cases involving W-2 income, equity compensation, closely held businesses, or large community estates, a change in the after-tax cost of spousal support can ripple into:
- how much cash flow each household actually has
- whether a higher or lower spousal-support figure is realistic
- settlement structure, including secured support, step-downs, or non-modifiable terms
- the relative value of keeping an older order versus rewriting it
High-asset divorces already require careful characterization of RSUs, stock options, carried interests, and business cash flow. Adding a California tax-conformity change makes coordinated legal and tax advice even more important.
What East Bay Clients Should Ask Now
If you are negotiating a divorce or legal separation in Alameda County or Contra Costa County:
- Confirm whether your agreement will be executed after December 31, 2025.
- Ask counsel to model support both ways if you are near that cutover date.
- Do not modify an older support order without reviewing whether the stipulation should — or should not — expressly adopt SB 711’s amendments.
- Bring your tax advisor into the conversation early if support, property division, and estimated tax withholding all move together.
If you already have a support order from before 2026, do not assume it automatically changed on January 1. In many cases it did not.
Talk With a Pleasanton Family Law Attorney
SB 711 is a tax-conformity statute, but its effects show up in the family-law conference room: settlement leverage, temporary support strategy, and the real cost of long-term spousal support.
If you have questions about spousal support, divorce settlement structure, or how California’s 2026 tax changes may affect your case in Pleasanton or elsewhere in the East Bay, the attorneys at Tierney Law Group can help you evaluate your options and coordinate with your tax professionals.
Contact Tierney Law Group at (925) 362-3364 to schedule a consultation.
This article is for general informational purposes only and is not legal or tax advice. Tax consequences depend on the exact wording and timing of your divorce or separation instrument, later modifications, and your overall tax situation. Confirm current Franchise Tax Board guidance and consult both family-law counsel and a qualified tax professional before filing, settling, or modifying support.
