California continues to refine its approach to pass-through entity taxation. With the enactment of SB 132 (Ch. 25-17), the state has extended the availability of the Passthrough Entity Tax (PTET) for an additional five years, covering tax years 2026 through 2030. The legislation also introduces important modifications to the election and prepayment rules that directly affect how businesses plan for and comply with California’s complex tax regime.
For businesses seeking to optimize tax outcomes—particularly those impacted by the federal SALT deduction cap—understanding these changes is critical. This article outlines the key provisions of SB 132, explains how they interact with federal law, and highlights how experienced tax counsel can help businesses navigate these rules strategically.
What Is the Passthrough Entity Tax Election?
Under California law, certain LLCs, partnerships, and S corporations may elect to pay a Passthrough Entity Tax equal to 9.3% of qualified net income attributable to consenting owners. Eligible owners generally include individuals, trusts, estates, and single-member LLCs.
The primary benefit of the PTET election is its treatment for federal tax purposes. Because the tax is paid at the entity level, it is fully deductible on the entity’s federal return, providing a valuable workaround for owners otherwise limited by the federal SALT deduction cap. For many business owners, particularly those with significant California-source income, this deduction can result in substantial federal tax savings.
Historically, however, the PTET election came with strict procedural requirements—most notably a June 15 prepayment deadline—that caused compliance challenges for many taxpayers.
Key Changes Under SB 132
SB 132 extends the PTET election through 2030 and introduces meaningful adjustments intended to provide flexibility while preserving compliance incentives.
- June 15 Prepayment Requirement Relaxed (2026–2030)
For tax years prior to 2026, entities were required to make a timely and precise prepayment by June 15 to remain eligible for the PTET election. Even a minor underpayment or late payment disqualified the entity entirely.
SB 132 relaxes this requirement for tax years 2026 through 2030. Entities that miss the June 15 deadline may still make the PTET election, offering relief to businesses that previously struggled with cash flow constraints or administrative timing issues.
- Late or Underpaid Prepayments Still Carry a Penalty
Although SB 132 removes automatic disqualification, it does not eliminate consequences. If an entity fails to make the full required prepayment by June 15, the PTET credit available to owners is reduced by 12.5% of the underpaid amount.
Example:
If a partnership underpays its required 2026 prepayment by $20,000, the total credit is reduced by $2,500. For two equal partners, each partner’s credit would be reduced by $1,250, directly diminishing the intended tax benefit.
This penalty functions as a late-payment cost and underscores the importance of accurate and timely tax planning, even under the more flexible regime.
- Clarification for Fiscal-Year Taxpayers
SB 132 also clarifies when fiscal-year taxpayers may claim the PTET credit. For entities with taxable years beginning between January 1, 2025, and December 31, 2025, owners must claim the credit on their 2026 California returns. This clarification helps avoid mismatches between entity-level payments and owner-level reporting.
Interaction With the Federal SALT Limitation
The PTET election remains closely tied to the federal SALT deduction limitation under IRC § 164(b). While Congress temporarily increased the SALT cap to $40,000 ($20,000 for married filing separately) beginning in 2021, the cap continues to limit deductions for many taxpayers.
SB 132 provides that California’s PTET election will remain available as long as the federal SALT limitation remains in effect. If Congress were to repeal the SALT cap entirely, California’s PTET would sunset for tax years beginning on or after January 1 of the repeal year.
Importantly, even if the PTET were repealed, unused PTET credits may be carried forward for up to five taxable years, preserving value for taxpayers who planned ahead.
Why These Changes Matter for Tax Planning
SB 132 offers welcome flexibility, but it also introduces new decision points and potential pitfalls. Businesses must now evaluate:
- Whether to elect PTET annually
- How much to prepay and when
- How penalties affect the net benefit of the election
- How entity-level decisions align with owners’ individual tax profiles
Missteps—such as underestimating income, misunderstanding owner eligibility, or misapplying credits—can materially reduce the benefit of the election.
Common Questions:
1. What is the main purpose of the SB 132 extension?
SB 132 extends California’s PTET elective tax for five additional years, covering tax years 2026 through 2030. This allows qualifying businesses to continue utilizing a state-level workaround to the federal State and Local Tax (SALT) deduction cap, which remains a critical tax-saving strategy.
2. Which entities are eligible to make the PTET election?
Eligible entities include:
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S Corporations
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Partnerships
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LLCs treated as partnerships (including multi-member LLCs)
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Note: C corporations, sole proprietorships, and single-member LLCs (unless owned by an individual/trust/estate) are generally ineligible.
3. How has the June 15 prepayment requirement changed for 2026?
Starting in 2026, the June 15 prepayment is no longer a “cliff” requirement for eligibility. Previously, missing or underpaying this deadline by even a small amount meant you could not make the PTET election for that year. Under SB 132, you can still elect into the PTET even if you miss the deadline or underpay.
4. What is the “Required Prepayment” amount?
To avoid penalties, an entity must pay the greater of:
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$1,000, or
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50% of the prior year’s PTET liability.
5. What is the penalty for missing or underpaying the June 15 deadline?
While you won’t be disqualified from voting, there is a high financial cost. The PTET credit available to each consenting owner will be reduced by 12.5% of the underpaid amount. Example: If your partnership was required to prepay $20,000 by June 15 but paid nothing, the total credit for the owners is permanently reduced by $2,500 ($20,000 × 12.5%).
6. How does the federal SALT cap interact with this California law?
The PTET election is a “SALT workaround” because the tax is paid and deducted at the entity level, reducing the income reported on the owner’s federal K-1. SB 132 is tied to the federal SALT cap; if Congress repeals the federal SALT cap, the California PTET will automatically sunset at the start of that tax year.
This blog is written as of January 2026. Recommendations and legal requirements are changing rapidly, so please continue to review our legal updates or review postings on relevant government websites.
All blogs on this site are for educational purposes only, do not constitute legal advice or opinion, and should not be applied to your situation, or any specific situation, without consultation with counsel. Strategy Law, LLP does not provide any legal advice concerning any matter discussed in a blog except upon formal engagement including, without limitation, execution of Strategy Law, LLP’s formal legal services agreement, and with respect to specific factual situations. No blog constitutes a guaranty, warranty, or prediction regarding the result of any legal matter discussed in the blog or any representation
