The SALT Cap Jumped to $40,000: What California Homeowners and High Earners Should Know

For eight years, the $10,000 State and Local Tax (SALT) deduction cap was the tax provision Californians loved to hate. In a state where a single homeowner in San Diego can easily pay $8,000 in property taxes and $15,000 in state income taxes, being limited to a $10,000 federal deduction felt like punishment for living in a high-tax state.

The One Big Beautiful Bill Act (OBBBA) changed that — raising the SALT cap to $40,000. But before you celebrate, there are details, phase-outs, and strategic considerations that every California taxpayer needs to understand. At The Law Office of Pietro Canestrelli, we’re helping taxpayers across Temecula, San Diego, Riverside, San Bernardino, and throughout California maximize this expanded deduction while navigating its complexities.

What the $40,000 SALT Cap Actually Means

Under the OBBBA, the SALT deduction cap increased from $10,000 to $40,000 for tax years beginning after December 31, 2024. The $40,000 cap applies to the combined total of state income taxes (or state sales taxes, if you elect that instead), local property taxes, and any other qualifying state and local taxes.

For many California taxpayers — especially homeowners in high-value markets like San Diego, Temecula, Riverside, Los Angeles, Orange County, and the Bay Area — this is a significant improvement. A California homeowner paying $12,000 in property taxes and $20,000 in state income taxes was capped at $10,000 under the old rule, leaving $22,000 in deductions on the table. Under the new cap, the full $32,000 is deductible.

For background on the SALT cap’s evolution and impact in California, see our complete SALT deduction guide.

The Phase-Out: Why High Earners Get Less Than $40,000

The $40,000 cap isn’t available to everyone at full value. The OBBBA includes a phase-down for higher-income taxpayers:

• The full $40,000 cap is available for taxpayers with MAGI at or below $500,000 (joint) or $250,000 (single)
• Above those thresholds, the cap is reduced by 30% of the excess MAGI
• The cap cannot fall below $10,000 (the old cap serves as a floor)

Here’s how the math works for a married couple filing jointly:

• At $500,000 MAGI: Full $40,000 cap
• At $600,000 MAGI: Cap reduced by 30% × $100,000 = $30,000 reduction → effective cap of $10,000
• At $550,000 MAGI: Cap reduced by 30% × $50,000 = $15,000 reduction → effective cap of $25,000

The phase-down is steep. For joint filers, the full $40,000 benefit disappears entirely at roughly $600,000 MAGI. For single filers, it phases out at approximately $350,000. This means many high-income Californians — the exact taxpayers who pay the most in state and local taxes — still can’t deduct their full SALT liability.

Who Benefits Most from the Higher Cap?

The expanded SALT cap is most valuable for taxpayers in the income “sweet spot” — high enough to have significant SALT payments, but below the phase-out thresholds:

• Dual-income households earning $300,000-$500,000: These families typically pay $15,000-$30,000 in combined state income tax and property taxes. The jump from a $10,000 cap to $40,000 can save $5,000 to $7,000 in federal taxes.
• Homeowners in mid-range markets: Temecula, Riverside, Murrieta, and similar markets where homes are valued between $500,000 and $1.2 million produce property tax bills of $5,000-$15,000 — right in the range where the higher cap makes the biggest difference.
• Retirees with pension and investment income: Those with significant California state tax liability but MAGI under $500,000.

Standard Deduction vs. Itemizing in 2026

The OBBBA increased the standard deduction to $16,100 (single) and $32,200 (joint) for 2026. Even with the higher SALT cap, many taxpayers still find the standard deduction is larger than their total itemized deductions.

When does it pay to itemize? Generally when your combined SALT deduction, mortgage interest, charitable contributions, and other itemizable deductions exceed the standard deduction. With the SALT cap at $40,000, more Californians will cross that threshold than under the old $10,000 cap — an estimated 14.2% of taxpayers nationally are projected to itemize in 2026, up from prior years.

For California homeowners with a mortgage, the math often works in favor of itemizing:

• $15,000 in mortgage interest + $12,000 in property taxes + $18,000 in state income tax = $45,000 in itemized deductions (SALT limited to $40,000 = $43,000 total)
• vs. $32,200 standard deduction → itemizing saves over $10,000 in deductions

The PTE Elective Tax: California’s Most Powerful SALT Workaround

For California business owners — especially those above the phase-out thresholds — the Pass-Through Entity (PTE) elective tax remains the most effective SALT strategy. Here’s why:

California’s PTE elective tax allows qualifying pass-through entities (S-corps, LLCs taxed as partnerships, partnerships) to pay a 9.3% tax at the entity level. This entity-level tax is deductible on the federal return as a business expense — not subject to the SALT cap. The owners then receive a credit on their California individual return for their share of the PTE tax paid.

The result: business owners effectively deduct their California state taxes without any cap, regardless of income level. The PTE election has been extended through 2030 under SB 132, and the June 15 prepayment deadline makes it a timely planning consideration.

This strategy is not available for sole proprietors or single-member LLCs taxed as disregarded entities. If you’re a sole proprietor in a high-tax situation, restructuring as an S-corp or multi-member LLC could unlock significant tax savings. Our business formation page explains the options, and our attorneys can evaluate whether restructuring makes sense for your specific situation.

Interaction with the $40,000 SALT Cap

The PTE elective tax and the $40,000 SALT cap work together — not against each other. Business owners can use the PTE election for their business income-related state taxes (which bypasses the cap entirely) and use the $40,000 cap for their remaining personal SALT items (property taxes, state taxes on non-business income).

For example: A married couple earning $600,000 — $400,000 from an S-corp and $200,000 from other sources — could:

• Pay PTE tax on the $400,000 of business income (deductible at the entity level, no cap)
• Deduct up to $40,000 in remaining SALT (property taxes + state tax on the $200,000) — though the phase-down would reduce this cap given their MAGI

This combined approach captures more total SALT deductions than either strategy alone.

Key Deadlines for SALT Planning in 2026

• April 15, 2026: Q1 estimated tax payment (California: 30% of annual liability). Property tax second installment due in many California counties (delinquent after April 10).
• June 15, 2026: Q2 estimated tax payment (California: 40% of annual liability). PTE elective tax prepayment deadline. California LLC estimated fee deadline.
• September 15, 2026: Q3 estimated tax payment (California: $0 — no Q3 payment under 30/40/0/30 schedule).
• December 31, 2026: Last day to make additional state estimated tax payments that would be deductible on the 2026 federal return.

Common Mistakes to Avoid

• Prepaying property taxes beyond the cap: If you’re already at the $40,000 SALT limit, prepaying next year’s property taxes provides no additional federal benefit.
• Ignoring the phase-down: If your MAGI exceeds $500,000 (joint), don’t assume you get the full $40,000. Run the phase-down calculation.
• Forgetting California nonconformity: California doesn’t cap SALT deductions on the state return (because SALT isn’t deductible for California purposes in the same way). But this means changes to your federal SALT strategy don’t necessarily affect your state return.
• Not evaluating PTE election vs. individual SALT: Business owners should model both scenarios before choosing a strategy. The math depends on income level, entity type, and the proportion of business vs. non-business income.

Get a Personalized SALT Strategy

The $40,000 SALT cap is a welcome improvement for California taxpayers — but maximizing it requires understanding the phase-outs, PTE election interaction, and California’s nonconformity. At The Law Office of Pietro Canestrelli, we work with homeowners, business owners, and high-income individuals across Temecula, San Diego, Riverside, San Bernardino, and throughout California to develop tax strategies that minimize both federal and state liability.

Want to know how the new SALT cap affects your situation? Contact our office for a tax planning consultation. A few strategic moves now can save thousands at filing time.