SALT Cap Workaround: The PTET Election Saving Pass-Through Owners $5K-$50K Per Year

The Tax Cuts and Jobs Act of 2017 imposed a $10,000 annual cap on the federal deduction for state and local taxes (SALT). For high-income taxpayers in California, New York, New Jersey, Illinois, Massachusetts, and other high-tax states, this single provision often produced the largest tax increase in TCJA. State income tax payments of $50,000, $100,000, or more — fully deductible before TCJA — became deductible only up to $10,000.

For pass-through business owners, however, the states have collectively responded with a powerful workaround: the Pass-Through Entity Tax (PTET) election. By allowing the entity (rather than the owner) to pay state income tax on business income, the deduction shifts from the owner's individual return (subject to the cap) to the entity's return (no cap). Properly elected, the PTET fully restores the federal deductibility of state taxes on pass-through business income.

The $10,000 SALT Cap

Under TCJA, the SALT deduction is capped at $10,000 for both single and joint filers. The cap aggregates:

• State and local income tax (or state sales tax, if elected).

• State and local property tax.

• Foreign income taxes (for itemizing taxpayers — though most claim the foreign tax credit instead).

For a married couple in California paying $50,000 in state income tax and $20,000 in property tax, only $10,000 is deductible federally. The remaining $60,000 produces no federal benefit.

The cap is scheduled to expire at the end of 2025, returning to unlimited SALT deductibility in 2026 — though numerous proposals to extend or modify the cap continue to circulate.

The Pass-Through Entity Tax (PTET) Election

To address the cap, more than 30 states have enacted pass-through entity tax regimes. The mechanics:

1. The pass-through entity (S-corp, partnership, or LLC taxed as either) elects to pay state income tax at the entity level on its share of business income allocable to the state.

2. The entity-level tax is a federal business deduction for the entity — reducing the income that flows through to owners on their K-1s.

3. Owners receive a state-level credit for their share of the PTET paid by the entity, eliminating duplicate state taxation.

The result: the state tax is fully deductible federally (because it's an entity-level deduction, not subject to the $10,000 cap), and the owner pays no additional state tax (because of the credit).

The Math on PTET Savings

Consider an S-corporation owner with $500,000 of K-1 business income flowing to a New York resident. New York state income tax at the top brackets is approximately 6.85% on income above $1.05M for single filers (with additional NYC surcharges). For simplicity, assume an effective NY state tax of $40,000 on the $500,000 of business income.

Without PTET:

• Owner's K-1 income: $500,000 (federal deduction available)

• NY state tax paid by owner: $40,000 (federal deduction limited to $10,000 cap)

• Federal tax savings on state tax: approximately $3,200 (32% × $10,000 cap) — and only if the owner has additional itemized deductions to clear the standard deduction.

With PTET:

• Entity pays $40,000 NY PTET — fully deductible at the federal level.

• Owner's K-1 income reduced to $460,000 (federal taxable amount).

• Owner pays no NY tax on the $500,000 (offset by PTET credit).

• Federal tax savings: approximately $12,800 (32% × $40,000) — full federal deduction restored.

Net annual benefit from PTET election: approximately $9,600 for this single owner. Across multiple years and multiple owners in larger entities, the savings compound to six- and seven-figure amounts.

State-by-State Variations

Each state's PTET regime differs in important ways:

• Election timing: Some states require annual election (NY, CA); others apply automatically once enacted.

• Election deadline: Often March 15 of the tax year, with limited exceptions for late elections.

• Tax base: Some states tax all entity income; others tax only the resident owner's share.

• Tax rate: Generally tracks the highest marginal personal income tax rate of the state.

• Credit mechanics: Some states provide a credit; others provide an income exclusion or deduction.

• Owner eligibility: Some states limit PTET benefits to resident owners; others extend to non-residents.

Common PTET-Enabled States

States with PTET regimes include (non-exhaustive):

• California, New York, New Jersey, Illinois, Massachusetts, Connecticut, Maryland, Minnesota, Oklahoma, Oregon, Rhode Island, South Carolina, Wisconsin, Arkansas, Arizona, Colorado, Georgia, Idaho, Indiana, Iowa, Kansas, Louisiana, Mississippi, Missouri, North Carolina, Ohio, Pennsylvania, Utah, Virginia.

States WITHOUT income tax (Texas, Florida, Tennessee, Washington, Nevada, Wyoming, South Dakota, Alaska) have no need for PTET. New Hampshire (no wage income tax) similarly has limited applicability.

Key Considerations

1. Cash flow. PTET requires the entity to make estimated tax payments to the state — typically quarterly. This creates a working capital requirement at the entity level even though the owner ultimately receives a credit.

2. Multi-state owners. Owners with operations in multiple PTET states face complex coordination. Each state's election must be evaluated separately, and credit utilization across state returns requires careful planning.

3. Non-resident owners. Some PTET regimes do not benefit non-resident owners equally. A New York LLC with a Florida-resident partner may benefit at the entity level but provide no individual benefit to the Florida partner.

4. Federal AMT. The federal AMT generally does not impact PTET benefits, since the entity-level deduction is a regular business deduction.

5. Return-to-payor mechanism. Some states allow the owner to "back out" of PTET if it doesn't provide individual benefit. Most don't — the election is binding for the year.

Coordination With S-Corp Reasonable Compensation

For S-corporation owners, PTET applies to the K-1 distributive share — but NOT to W-2 wages. Reasonable compensation paid to the owner remains subject to standard payroll tax withholding and personal income tax (limited by the $10,000 SALT cap).

This creates an interesting planning angle: in PTET states, S-corp owners may benefit from minimizing W-2 wages (subject to reasonable compensation requirements) and maximizing K-1 distributions, since the K-1 income receives full state tax deductibility through PTET while W-2 wages do not.

Audit Risk and Documentation

The IRS issued Notice 2020-75 confirming that PTET payments are deductible at the entity level — providing critical safe harbor for taxpayers electing PTET. The Notice covered both cash- and accrual-basis pass-through entities.

However, certain implementations have drawn IRS scrutiny:

• Sham elections where PTET produces no real economic state tax obligation.

• Mismatched timing between the PTET payment and the credit claimed by owners.

• Improper allocation of PTET payments to non-business income.

Common Mistakes

• Missing the PTET election deadline (often March 15).

• Failing to make required estimated PTET payments at the entity level.

• Electing PTET when the owner is in a non-conforming state or has no state tax liability to credit.

• Confusing PTET (entity-level state tax) with the unrelated federal qualified business income deduction (§199A).

• Not coordinating PTET with multi-state entities (each state evaluated separately).

• Treating PTET as a simple election without modeling the after-tax outcome.

The 2025 Sunset and Beyond

The federal $10,000 SALT cap is scheduled to expire after 2025. If the cap expires, the PTET advantage disappears — uncapped state tax deductions become available again at the individual level. However, multiple congressional proposals would extend or modify the cap. Business owners should not assume the cap will simply sunset.

Even in a post-cap environment, PTET may still provide cash flow advantages and certain technical benefits for multi-state operations.

Bottom Line

For pass-through business owners in high-tax states, the PTET election is one of the most consequential tax planning decisions available. The mechanics vary by state, the timing requirements are unforgiving, and the modeling can be complex — but the federal tax savings frequently exceed $5,000 to $50,000+ per owner per year. Every pass-through entity in a PTET state should evaluate the election annually as part of year-end tax planning.