How the PTE Elective Tax Works

Here’s the basic mechanic. Your S-corp or partnership makes an election to pay California income tax at a flat 9.3% rate on the entity’s qualified net income, as codified in Cal. Rev. & Tax. Code Section 19900. The entity writes the check to the FTB instead of the individual owners paying it on their personal returns. Because the tax is paid at the entity level, it’s deductible as a business expense on the federal return — which means it bypasses the $10,000 SALT cap entirely, consistent with IRS Notice 2020-75.

On the owner’s side, you pick up your share of the entity-level tax as a credit on your Form 540. You claim it using Form 3804-CR. The credit is dollar-for-dollar: if the entity paid $46,500 in PTE tax and you own 50% of the company, your credit is $23,250. That $23,250 offsets your California personal income tax.

For a detailed breakdown of how the election itself works at the entity level, see our CA PTET guide.

A Real-World Example

Say you’re a 50% owner of a two-member LLC taxed as an S-corp. The company earns $500,000 in qualified California net income for 2024. The entity elects into the PTE tax and pays 9.3% on $500,000 — that’s $46,500 to the FTB.

Your share: $23,250. On your federal return, the entity deducts that $46,500 as a state tax expense (not subject to the SALT cap because it’s an entity-level payment, not a personal one). Your K-1 income drops accordingly. Then on your California 540, you claim the $23,250 PTE credit on the line for credits from Form 3804-CR.

If your total California tax before credits was $20,000, the $23,250 credit wipes it out entirely. What about the remaining $3,250? That’s where the carryforward comes in.

Excess Credit: Carryforward Rules

Starting with the 2024 tax year, excess PTE credit that exceeds your California tax liability carries forward to future years per Cal. Rev. & Tax. Code Section 19902. It does not get refunded to you immediately. This is a change from what some practitioners expected when the program launched — there was initial confusion about whether excess credits would be refundable. They’re not. But you don’t lose the excess either; it rolls forward and offsets tax in subsequent years.

In our example above, that extra $3,250 would carry forward to your 2025 return. If your 2025 California tax is $22,000, you’d apply the $3,250 carryforward first, then any new PTE credit from that year.

Who Should Use This Credit

If you own any piece of a California S-corp or partnership and your personal itemized deductions (including state tax) exceed $10,000, this credit almost certainly saves you money. The math works for most owners, but it’s especially powerful for:

• High-income S-corp shareholders — Owners with $200K+ in pass-through income who are already maxing out the SALT cap
• Multi-member LLCs — Partnerships where all members agree to the election (every consenting member’s income gets included)
• Owners with significant California tax liability — The credit directly reduces what you owe on your 540, and California’s top rate is 13.3%

The PTE election doesn’t make sense for every entity. Sole proprietors can’t use it (no entity to elect). Single-member LLCs that haven’t elected S-corp status can’t use it either. And the entity needs to make the election by the original due date of the return — you can’t go back and amend to elect retroactively. For more on how self-employment tax interacts with entity structure, see our dedicated guide.

Common Mistakes

The biggest one: the entity forgets to actually make the election. Paying estimated PTE tax doesn’t constitute an election. The entity has to affirmatively elect on its return by the filing deadline per the FTB’s PTE guidance. We’ve seen cases where a CPA paid the tax but missed the checkbox, and the credit got denied.

Another frequent issue: K-1 reporting errors. The credit amount from Form 3804-CR has to match what’s reported on the owner’s Schedule K-1. If those numbers don’t reconcile, expect a notice from the FTB.

Third: owners who try to claim the credit when they haven’t been members of the entity for the full tax year. If you joined the LLC in October, your credit is only based on your share of income for the period you were a member. The full-year credit amount on the entity’s return doesn’t all go to you.

Where This Fits on Your 540

The PTE credit appears in the credits section of your Form 540, alongside other credits like the renter’s credit and the Other State Tax Credit. After credits reduce your tax liability, you’ll reconcile against estimated payments and withholding to determine your refund or balance due. If you also have capital gains, those are taxed at ordinary rates in California — no special rate — so the PTE credit can offset that tax too.

Sources & References

• FTB — Pass-Through Entity Elective Tax
• FTB Form 3804-CR — Pass-Through Entity Elective Tax Credit
• Cal. Rev. & Tax. Code Section 19900 — PTE Elective Tax
• Cal. Rev. & Tax. Code Section 19902 — PTE Credit & Carryforward
• AB 150 — Small Business Relief Act
• IRS Notice 2020-75 — Entity-Level State Tax Deductibility
• IRC Section 164 — SALT Deduction & Cap