Advanced Tax Strategy · July 2026

Pass-Through Entity Tax (PTET):
How S-Corp & LLC Owners Beat the $10K SALT Cap

The $10,000 federal SALT deduction cap erases tens of thousands of dollars in state tax deductions for high-earning pass-through business owners. PTET is the IRS-approved mechanism that moves state income tax from a capped personal deduction to a 100% uncapped federal business deduction — and over 36 states now allow it. Here is exactly how it works, what the math looks like, and where people lose the benefit.

PTET SALT Cap S-Corporation Partnership Federal Tax Strategy
Federal SALT Deduction Cap
$10K
individual cap introduced by TCJA
States with PTET
36+
plus New York City local PTET
Federal Savings (Example)
$17,500
$500K profit / 10% state / 35% federal bracket
Cash-Basis Payment Deadline
Dec 31
must leave business account by year-end

The Problem: The $10,000 SALT Cap

The Tax Cuts and Jobs Act (TCJA), passed in 2017, introduced a hard $10,000 cap on the amount individual taxpayers can deduct in combined State and Local Taxes on federal Schedule A. The cap covers:

  • State income taxes paid on personal returns
  • Local property taxes and real estate taxes on personal residences

For W-2 employees in low-tax states, this cap has little practical impact. For high-earning pass-through business owners in states like California, New York, New Jersey, Illinois, or Massachusetts — it is a significant financial hit.

Annual Net Profit 10% State Income Tax Bill Federally Deductible (SALT Cap) Non-Deductible Amount Lost
$200,000 $20,000 $10,000 (capped) $10,000 wasted
$350,000 $35,000 $10,000 (capped) $25,000 wasted
$500,000 $50,000 $10,000 (capped) $40,000 wasted
$1,000,000 $100,000 $10,000 (capped) $90,000 wasted

In practice, the situation is worse. The $10,000 SALT cap is a shared bucket. A business owner earning $500,000 typically pays $10,000 or more in personal property taxes on their primary residence — which already fills the cap entirely. This means zero dollars of the state income tax bill produces any federal deduction.

The Real Cost of the SALT Cap at a 35% Federal Bracket

At a 35% federal marginal rate, every $10,000 in lost deductions costs $3,500 in federal income tax. A business owner with $40,000 in non-deductible state income tax pays an extra $14,000 in federal tax that they would not owe if those state taxes were fully deductible. PTET eliminates this.

How PTET Works: The 3-Step Mechanism

In late 2020, the IRS issued Notice 2020-75, officially confirming that entity-level state income tax payments by pass-through businesses qualify as ordinary and necessary business deductions — fully bypassing the individual SALT cap. Over 36 states moved quickly to enact elective PTET statutes.

The mechanism works in three steps:

1
Business Elects & Pays
The S-Corp or partnership makes an annual PTET election with the state and pays state income tax directly from the business bank account on behalf of its owners. Payment flows from the entity's FEIN, not from individual Social Security numbers.
2
Federal Business Deduction
The IRS treats the entity-level state tax payment as an ordinary business expense on Form 1120-S or 1065 — deducted in full before K-1s are generated. Net income passed to owners is already reduced. No Schedule A. No SALT cap. 100% above the line.
3
State Tax Credit Claimed
On their personal state returns, owners claim a dollar-for-dollar state tax credit equal to their pro-rata share of the PTET paid by the entity. This prevents double state taxation — the state collects the same total amount, just from the entity instead of the individual.
Why the IRS Allows This

The IRS views S-Corps and partnerships as legally distinct entities from their owners. When a business pays a tax, the IRS treats it as a business operating expense — the same way it would treat payroll taxes, professional fees, or rent. The individual SALT cap applies to taxes paid by individuals. Taxes paid by the business entity are not constrained by Schedule A limits.

The Math: A $500,000 Profit, $17,500 in Federal Savings

Here is a concrete comparison using a single-owner S-Corporation with $500,000 in net business profit, operating in a state with a 10% income tax rate, with the owner in the 35% federal marginal bracket.

Metric Without PTET With PTET Difference
Business Net Income (K-1 Box 1) $500,000 $450,000 $50,000 state tax expense deducted at entity level
Federal Taxable Income from Business $500,000 $450,000 $50,000 less taxable income
State Tax Paid $50,000 (by owner, personally) $50,000 (by business entity) Same amount — different payer
State Tax Credit on Personal Return $0 −$50,000 credit applied Dollar-for-dollar offset prevents double state tax
Net State Tax Out-of-Pocket (Owner) $50,000 $0 Paid by business; personal liability zeroed by credit
Federal Tax Savings (at 35% bracket) ~$0 (SALT cap exhausted by property tax) ~$17,500 $17,500 net savings in pocket

The $17,500 figure comes from: $50,000 (state tax paid at entity level) × 35% (federal marginal rate) = $17,500 in federal income tax eliminated. The owner's total state tax burden does not change — the state credit zeros out the personal liability. The federal government is the one writing the check via a reduced tax bill.

What About the $10K That WAS Deductible Without PTET?

Even without property taxes exhausting the SALT cap, the numbers favor PTET. Without PTET: you deduct $10,000 on Schedule A and save $3,500 in federal tax; the remaining $40,000 is lost. With PTET: you deduct all $50,000 at the entity level and save $17,500 in federal tax. PTET saves $14,000 more — even in the best-case scenario where the SALT cap isn't already eaten by property taxes.

The SALT Cap Bonus Effect: You Get Both Deductions

There is a secondary benefit to PTET that most guides overlook. When state income tax moves off your personal Schedule A and onto the business return, your entire $10,000 personal SALT cap opens up — and you can fully use it for property taxes.

Without PTET — Shared Cap
State income tax (personal)$50,000
Property taxes (personal)$12,000
Combined SALT before cap$62,000
SALT cap limit$10,000
Deductible state income tax$0
Deductible property tax$10,000
Total SALT deducted$10,000
With PTET — Cap Freed
State income tax (entity pays)$50,000 ✓ business deduction
Property taxes (personal)$12,000
Personal SALT on Schedule A$12,000 (only property tax)
SALT cap limit$10,000
Deductible state income tax$50,000 (entity level)
Deductible property tax$10,000 (Schedule A)
Total SALT deducted$60,000

Instead of competing for one $10,000 cap, both deductions operate independently. State income tax flows through the business as an uncapped deduction. Property taxes claim the full personal $10,000 SALT cap. The owner captures both — a result that is structurally impossible without PTET.

Tax Return Mechanics: Where It Shows Up Line by Line

Understanding which forms and line numbers are involved matters both for working with a CPA and for verifying that the PTET deduction flowed through correctly.

PTET Tax Form Flow

From business return to personal refund

Step 1
Business Federal Return — Form 1120-S (S-Corp) or Form 1065 (Partnership)
S-Corp: Line 12 — Taxes and Licenses. Partnership: Line 14 — Taxes and Licenses. The PTET payment is recorded here, reducing ordinary business income before K-1s are calculated and distributed to owners.
Step 2
Schedule K-1 — Distributed to Each Owner
Box 1 (Ordinary Business Income) already reflects the lower post-PTET net income. Owners do not need to make any additional deduction — the lower number is baked in. Box 17 (S-Corp) or Box 20 (Partnership) carries a footnote disclosing the owner's pro-rata share of PTET paid (often coded as Code AD or Code ZZ).
Step 3
Individual Federal Return — Form 1040, Schedule E
The lower K-1 Box 1 income flows to Schedule E, Part II and then to Schedule 1, reducing Adjusted Gross Income (AGI) above the line. No Schedule A involvement whatsoever. The SALT cap is irrelevant — the deduction already happened at the business level.
Step 4
Individual State Return — Credit Form + Add-Back
Owners file a state-specific credit form to claim the dollar-for-dollar PTET credit (e.g., California Form 3804-CR; New York Form IT-653). Most states also require a state add-back adjustment (e.g., California Schedule CA; New York Form IT-225) to add the federal PTET deduction back into state taxable income — preventing a double state benefit.
The Key Insight: AGI Reduction, Not Itemized Deduction

The PTET deduction reduces your AGI "above the line" — before the standard deduction or itemized deductions are calculated. This is structurally more powerful than a Schedule A deduction, which only helps taxpayers who itemize and only up to the $10,000 SALT cap. The PTET deduction is uncapped, automatic, and benefits all pass-through owners regardless of whether they itemize or take the standard deduction.

State-by-State Status

Which States Have PTET Laws?

State PTET laws fall into three categories. The landscape has shifted rapidly since 2020 — verify current rules annually with a CPA, as many states have modified deadlines, rates, or eligibility requirements.

Active PTET States
36+

These states have enacted elective PTET statutes and allow eligible pass-through entities to make the election.

West & Southwest: AZ, CA, CO, HI, ID, NM, OK, OR, UT
Midwest: IL, IN, IA, KS, MI, MN, MO, NE, OH, WI
South: AL, AR, GA, KY, LA, MS, NC, SC, WV
Northeast: CT, MA, MD, NJ, NY, RI, VA
Plus: New York City local PTET
No Income Tax States
9

These states impose no personal income tax, so the SALT cap has no practical effect on state income tax deductions. PTET is unnecessary here.

Alaska · Florida · Nevada · New Hampshire · South Dakota · Tennessee · Texas · Washington · Wyoming
Holdout States
5+DC

These states have not enacted PTET legislation as of this writing. Legislation is periodically introduced in some. Owners operating here have no entity-level SALT cap workaround available.

Delaware · Maine · North Dakota · Pennsylvania · Vermont · Washington D.C.
Important: Sunset Provisions

Many state PTET laws contain sunset clauses tied to the federal TCJA SALT cap. If Congress modifies or eliminates the $10,000 cap, some states may automatically repeal or modify their PTET statutes. Monitor both federal tax legislation and your state's annual tax updates before planning PTET elections for future years.

How and When to Pay: Quarterly Estimates and State Portals

PTET payments are made directly from the business bank account using the entity's Employer Identification Number (FEIN) — not the owner's Social Security number — through each state's tax portal.

Common State Payment Portals

  • California: FTB Web Pay (select "PTE Elective Tax")
  • New York: NYS Business Online Services ("PTET Estimated Payment")
  • Illinois: MyTax Illinois
  • Massachusetts: MassTaxConnect
  • New Jersey: NJ Division of Taxation Online Services

Standard Quarterly Schedule

Most states follow the same estimated payment cadence as federal estimated taxes:

Q1 Payment
Apr 15
Jan–Mar period
Q2 Payment
Jun 15
Apr–May period
Q3 Payment
Sep 15
Jun–Aug period
Q4 Payment
Dec 15
Sep–Dec (some states: Jan 15)

Payments are calculated based on the entity's estimated net profit for each period, prorated by each owner's ownership percentage. Unlike personal estimated taxes, there is no standard federal safe harbor formula for PTET — each state defines its own requirements.

The December 31 Cash-Basis Rule — Non-Negotiable

For the vast majority of small businesses operating on cash-basis accounting, a deduction is recognized in the year the payment is physically made. If you wait until March to pay PTET alongside your tax filing, that payment falls in the next calendar year — the federal deduction is deferred by a full year. PTET payments intended to reduce current-year federal taxable income must leave the business bank account on or before December 31.

Critical State Deadline Traps

California and New York: The Two Traps That Kill the Election

Two major PTET states have requirements that, if missed, permanently revoke the election for the entire tax year — with no ability to cure retroactively.

California: The June 15 Prepayment Mandate

California requires that by June 15 of each tax year, the entity must pay the greater of:

  • $1,000, or
  • 50% of the prior year's PTET liability

Missing this June 15 deadline invalidates the California PTET election for the entire year — even if the remaining payments are made correctly. There is no extension and no cure. If your prior-year California PTET was $40,000, your June 15 payment must be at least $20,000.

California: Year-One Trap

In the first year making the California PTET election, if there is no prior-year liability to reference, the minimum required prepayment is $1,000 by June 15. This is a low barrier, but it must still be paid. Many first-year filers miss this because they don't realize the election requires a mid-year prepayment to be valid.

New York: The March 15 Opt-In Deadline

New York requires a formal online PTET opt-in by March 15 of the current tax year. This is not a payment — it is an affirmative election filed through the NYS Business Online Services portal. Missing the March 15 opt-in means the entity cannot make the New York PTET election for that year, regardless of when or how much is paid.

New York City operates a separate local PTET with its own election and payment rules, in addition to the state-level election.

6 Costly Mistakes
1
Assuming Single-Member LLCs Are Eligible
Single-member LLCs filing on Schedule C as sole proprietors are ineligible for PTET. The business must be taxed as a pass-through entity with multiple parties — an S-Corporation, a partnership, or a multi-member LLC taxed as a partnership. To access PTET as a single-owner business, the entity must formally elect S-Corporation status via Form 2553 and run payroll, at which point it qualifies.
2
Expecting PTET to Lower Your State Tax Bill
PTET is completely state-neutral. The state collects the same total amount of tax — it simply collects it from the entity instead of the individual. The dollar-for-dollar state credit zeros out the owner's personal state liability. The entire benefit of PTET is federal: a lower K-1 income figure that reduces AGI and federal income tax owed.
3
Paying PTET in March Instead of Before December 31
Cash-basis businesses — virtually all small S-Corps and partnerships — recognize deductions in the year payment is made. Paying PTET at tax-filing time in March or April pushes the deduction into the next calendar year. You lose an entire year of tax savings. Payments must physically clear the business account by December 31 to count against the current-year federal return.
4
Out-of-State Partners and the Double-Taxation Risk
If a partner lives in State A but the business pays PTET to State B, State A may not allow an Other State Tax Credit (OSTC) for PTET paid to another state. The result is state-level double taxation — the owner owes income tax to their resident state with no credit for the entity's payment to the business's state. Multi-state ownership structures require careful legal analysis before making the election.
5
Expecting a Double State Benefit
Every state with PTET requires an add-back adjustment on the owner's personal state return — adding the federal PTET deduction back into state taxable income before applying the state credit. Without this add-back, the taxpayer would get a deduction at the entity level and reduce state taxable income at the personal level for the same dollars, creating an impermissible double state benefit. The state credit offsets the add-back; the system is designed to be state-revenue-neutral.
6
Missing State Opt-In and Prepayment Deadlines
Unlike most tax elections, PTET deadlines are typically not curable. Missing California's June 15 prepayment threshold or New York's March 15 opt-in permanently revokes the election for that year — there is no extension and no retroactive fix. The IRS deadline for the business return does not extend these state-level election windows. Each state's rules must be tracked independently at the start of every tax year.
Frequently Asked Questions

PTET — Common Questions

What is the Pass-Through Entity Tax (PTET)?+
The Pass-Through Entity Tax (PTET) is an elective state tax mechanism that allows eligible pass-through businesses — S-Corporations, partnerships, and multi-member LLCs — to pay state income tax at the entity level rather than passing that liability to individual owners. The IRS, under Notice 2020-75, confirmed that these entity-level state tax payments qualify as ordinary business deductions, bypassing the $10,000 federal SALT cap that limits individual deductions on Schedule A.
Who is eligible to make the PTET election?+
PTET eligibility generally requires the business to be taxed as a pass-through entity: an S-Corporation, a partnership, or a multi-member LLC taxed as a partnership. Single-member LLCs filing on Schedule C as sole proprietors are ineligible — they are not separate legal entities for this purpose. To access PTET as a single-owner business, the entity would need to formally elect S-Corporation status via Form 2553 and pay a reasonable salary, at which point the entity qualifies.
Does PTET reduce your state tax bill?+
No. PTET is state-neutral. The state collects the same total amount of tax — it simply collects it from the entity instead of from the individual owner. The state then grants a dollar-for-dollar credit to the owner on their personal return, preventing double state taxation. The benefit of PTET is entirely on the federal side: the entity-level state tax payment becomes a 100% federal business deduction, reducing federal taxable income and federal income tax owed.
How much can a business owner actually save with PTET?+
Savings depend on state tax rates and the owner's federal marginal tax rate. On a $500,000 net profit in a 10% state income tax state, the entity-level state tax payment is $50,000. At a 35% federal marginal rate, the full $50,000 deduction saves $17,500 in federal income tax. Without PTET, the $50,000 state bill would be largely non-deductible because the $10,000 SALT cap is typically exhausted by property taxes. Owners in high-income-tax states like California (up to 13.3%) or New York (up to 10.9%) see proportionally larger federal savings.
Why doesn't PTET count as double taxation?+
Because the IRS and the state are two separate taxing authorities, and each takes a different action. The IRS grants a federal deduction when the business pays state tax — reducing federal taxable income. The state issues a dollar-for-dollar tax credit to the owner against their personal state return — preventing double state taxation. The federal deduction and the state credit are not the same thing and do not cancel each other out. The state breaks even (collected from the entity rather than the individual). The federal government is the one granting a new deduction that did not exist before PTET.
On which tax return lines does PTET appear?+
On the business federal return: S-Corporation Form 1120-S Line 12 (Taxes and Licenses); Partnership Form 1065 Line 14 (Taxes and Licenses). This reduces ordinary income before K-1s are generated. On the owner's Schedule K-1: Box 1 (Ordinary Business Income) already reflects the lower post-PTET number; Box 17 (S-Corp) or Box 20 (Partnership) carries a footnote with the owner's pro-rata PTET share (Code AD or ZZ). On the individual federal return: the lower K-1 Box 1 flows to Schedule E and reduces AGI above the line — no Schedule A involvement. On the state return: owners file state-specific credit forms (e.g., California Form 3804-CR, New York Form IT-653) and add back the federal deduction to prevent a double state benefit.
Does PTET require quarterly estimated payments?+
In most states, yes. Entities generally follow a quarterly estimated payment schedule (April 15, June 15, September 15, December 15 / January 15), made from the business bank account using the entity's FEIN through state tax portals. California imposes a specific June 15 prepayment mandate — 50% of the prior year's PTET or $1,000, whichever is greater — and missing it invalidates the election for the entire year. New York requires a formal opt-in by March 15. For cash-basis businesses in all states, PTET payments must physically leave the business account by December 31 to be deductible in that tax year.
What is the December 31 cash-basis trap?+
For cash-basis businesses (most small businesses), a tax deduction is recognized in the year the payment is actually made — not the year it is accrued. If you wait until March or April to pay your PTET when you file your business return, that payment falls in the next calendar year and pushes the federal deduction forward by an entire year. PTET payments intended to reduce current-year federal taxable income must physically leave the business bank account on or before December 31 of that tax year.
Can PTET create problems for owners who live in a different state than the business?+
Yes. If a partner lives in State A but the business pays PTET to State B, the owner's resident state (State A) may not allow an Other State Tax Credit (OSTC) for PTET paid to a different state. This creates the risk of state-level double taxation — paying state income tax in both State B (via the entity) and State A (on the personal return) with no offsetting credit. Multi-state ownership situations require careful state-by-state analysis before making the PTET election.
What happens to PTET if the TCJA SALT cap expires?+
The $10,000 SALT cap was introduced by the Tax Cuts and Jobs Act (TCJA). If Congress allows the SALT cap to expire or raises it significantly, the federal tax benefit of PTET would be reduced or eliminated — since the underlying problem PTET solves would no longer exist. Many state PTET laws contain sunset provisions tied to the SALT cap. As of the current writing, the SALT cap remains in effect. Monitor federal tax legislation and your state's PTET statute annually.

The Bottom Line on PTET

PTET does not reduce your state taxes. It converts state income tax — which would otherwise be capped at a $10,000 individual deduction on Schedule A — into a 100% uncapped federal business deduction that reduces AGI above the line. The federal government absorbs the savings; the state collects the same amount via the entity instead of you personally.

For high-earning S-Corp and partnership owners in income-tax states, PTET is one of the most direct and IRS-approved federal tax reduction strategies available. On $500,000 of net profit at a 35% marginal rate in a 10% state, that is $17,500 in annual federal tax savings — and the number scales linearly with income.

The risks are procedural, not legal: missing state opt-in windows, failing California's June 15 prepayment mandate, paying after December 31, or operating in a multi-state partnership without analyzing the resident-state credit rules. Every one of these mistakes is avoidable with proactive planning at the start of the tax year.

This guide covers general principles only. PTET mechanics vary significantly by state, and multi-owner and multi-state situations add meaningful complexity. Work with a CPA familiar with your state's PTET rules before making the election.

Related: Once you elect S-corp taxation, understanding the salary-vs.-distributions split is the next critical step. See the S-corp salary and quarterly tax guide for how the two-bucket structure affects self-employment tax and FICA.

Ready to elect S-Corp status? TheLLCWiki's free Form 2553 generator walks you through the S-Corp election form — the first step to PTET eligibility for single-owner businesses.

Form 2553 →
General Information — Not Tax or Legal Advice
This guide reflects general federal and state tax principles for educational purposes. PTET laws are enacted and modified by individual states, change frequently, and apply differently depending on your entity type, state of formation, state of residence, and ownership structure. Nothing here constitutes tax, legal, or financial advice for your specific situation. Consult a licensed CPA or tax attorney familiar with your state's PTET rules before making any election.