Navigating the SALT Cap: A Strategic Path for California Business Owners

For many high-net-worth individuals and business owners in the Burlingame area, the federal limitation on state and local tax (SALT) deductions has been a persistent hurdle in wealth preservation. If you are navigating the complexities of high-value real estate and significant state income tax liabilities, the Pass-Through Entity Elective Tax (PTET) offers a sophisticated mechanism to reclaim those lost deductions. At Sullivan & Company CPA Inc., we focus on clear, strategic solutions that align your business structure with your long-term financial legacy.

The PTET is essentially a workaround designed to bypass the federal cap on itemized SALT deductions. By electing to pay state taxes at the entity level, partnerships and S-corporations can transform what would have been a limited personal deduction into a fully deductible business expense at the federal level. This shift can result in substantial tax savings, particularly for those in high-tax jurisdictions like California.

The Impact of the OBBBA on SALT Limits

While the legislative landscape is always shifting, the recently enacted One Big Beautiful Bill Act (OBBBA) has introduced temporary relief. From 2025 through 2029, the federal SALT deduction ceiling has been raised. However, this does not render the PTET obsolete. On the contrary, for high-income taxpayers, the phasedown rules and the eventual 2030 reversion to the $10,000 cap make the PTET an essential component of a forward-looking tax strategy.

The following table outlines the current SALT deduction limits and the high-income phasedown thresholds under the OBBBA:

Despite these increased limits, the PTET remains a vital tool for several reasons:

• Exceeding the Threshold: Taxpayers with state tax liabilities significantly above $40,000 still face a wall of non-deductibility that the PTET helps scale.
• Favorable Interactions: Reducing the income reported on your federal K-1 can lower your Adjusted Gross Income (AGI), potentially mitigating the impact of the Net Investment Income Tax (NIIT) or avoiding phaseouts of other tax credits.
• Multi-Entity Complexity: For families managing multiple entities or complex gifting strategies, the PTET can be integrated into a broader valuation and estate planning framework.

The Mechanics of the PTET Strategy

Understanding the operational side of the PTET is crucial for timely compliance and maximizing the benefit. Here is how the process typically unfolds for California-based entities:

• The Irrevocable Election: Each year, the S-Corp or partnership must choose to “opt-in.” This election is made on a timely filed original return and cannot be undone for that specific tax year. Crucially, participation is flexible; not every partner or shareholder is required to participate.
• The Tax Calculation: In California, the entity pays a flat 9.3% tax on the share of net income belonging to the consenting owners.
• The Dual-Level Benefit: At the federal level, the tax paid by the business is treated as an expense, reducing the profit reported on your K-1. On your California personal return, you receive a nonrefundable credit for the amount paid by the business. Any excess credit can be carried forward for up to five years, ensuring that the benefit is eventually realized even if current-year liabilities are lower.

Who Qualifies for the Workaround?

Generally, S-corporations, partnerships, and LLCs taxed as such are eligible for the election. However, the strategy is not available to sole proprietorships or publicly traded partnerships. Ownership structures involving tiered partnerships or corporate owners require a more detailed forensic analysis to ensure compliance with California’s specific regulatory hurdles.

Strategic Recommendations and Next Steps

While the PTET is a powerful lever for reducing your federal tax burden, it is not a universal fix. The interplay between the OBBBA’s temporary caps and your specific income profile means that generic advice often falls short. Modeling both scenarios—itemizing under the current SALT cap versus electing the PTET—is the only way to determine the optimal path for your family office or business.

At Sullivan & Company CPA Inc., we pride ourselves on delivering clarity over jargon. We are here to help you decipher the tax code and provide defensible, actionable strategies that protect your financial legacy. If you would like a personalized model comparing the PTET versus traditional itemizing based on your current year projections, please contact our Burlingame office to schedule a consultation.

Beyond the fundamental mechanics, a nuanced understanding of the California-specific compliance environment is essential to avoid costly missteps that can disqualify an entity from these benefits. A primary consideration is the ‘pay-to-play’ provision regarding estimated tax payments. For a pass-through entity to remain eligible for the PTET election in any given tax year, it must make a mandatory installment payment by June 15th of that year. This payment must be the greater of $1,000 or 50% of the PTET paid for the prior taxable year. Failure to meet this specific deadline—even by a single day—renders the entity ineligible to make the election for that entire year, potentially costing the owners tens of thousands of dollars in lost federal deductions. For Burlingame business owners managing multiple high-priority operations, this deadline is a critical milestone that requires proactive coordination with your tax advisory team well in advance of the summer months.

The interaction between the PTET and the federal Alternative Minimum Tax (AMT) also provides a secondary layer of benefit that is frequently overlooked during high-level tax planning. Under standard itemized deduction rules, state and local taxes are treated as an ‘add-back’ item for AMT purposes, which often negates the federal tax benefit for high-income earners. However, because the PTET is deducted at the entity level as a business expense, it reduces the taxpayer’s federal gross income before it ever reaches the personal return. This structural advantage effectively shields the deduction from the AMT add-back, providing a more robust tax benefit that is not eroded by the complexities of the alternative tax system. This makes the PTET an especially attractive strategy for those who typically find themselves subject to the AMT due to high state tax or property tax liabilities.

Consider a practical scenario involving a local entrepreneur whose S-corporation generates $1,000,000 in pass-through income. Under the temporary OBBBA rules, this taxpayer might be restricted to a $40,000 federal SALT deduction on their personal return. By opting into the PTET, the corporation instead pays $93,000 in state taxes (9.3% of the qualified income). This entire $93,000 is deducted on the federal 1120-S return, directly reducing the owner’s federal K-1 income to $907,000. At a top federal marginal rate, this additional $53,000 in deductions beyond the standard SALT cap results in significant immediate federal tax savings. When combined with the five-year carryforward provision for any unused California credits, the cumulative impact on wealth preservation and cash flow is considerable.

From a valuation and forensic accounting perspective, the implementation of a PTET election also impacts the cash flow profile and net asset value of an entity. When our team at Sullivan & Company CPA Inc. conducts valuations for gift tax purposes or estate settlement, we carefully analyze how these entity-level tax payments affect the net distributable cash available to partners or shareholders. While the tax is technically an expense to the entity, it functions as a personal tax credit for the individual owners. This nuanced shift in where the tax burden is realized must be meticulously documented to ensure that your business’s financial records remain clear and defensible during any potential audit or litigation. Properly managing these documentation workflows ensures that your tax strategy remains in total alignment with your broader legacy and wealth transfer goals, providing a solid foundation for future forensic analysis if needed.

Furthermore, for families managing a diverse portfolio of multiple entities, the PTET decision is not a global mandate; it must be evaluated on an entity-by-entity basis. This allows for a highly tailored approach where the election is utilized only in the specific entities where income levels, ownership structures, and state-specific credits maximize the federal benefit. At our firm, we review each entity within your family office or business group to ensure your global tax position is optimized. We simplify these complex estate and forensic accounting issues into actionable strategies, allowing you to focus on decision-making rather than deciphering the intricacies of the tax code. By integrating these entity-level decisions into a comprehensive strategy, you gain more control over your financial legacy and the long-term preservation of your assets across generations.