2026 SALT Cap and PTET Elections for Pass-Through Owners

The Tax Cuts and Jobs Act of 2017 imposed a $10,000 annual cap on the federal deduction for state and local taxes (SALT). The 2025 tax law increased that limit temporarily. For 2026, IRS Publication 505 lists a $40,400 limit ($20,200 for married filing separately), subject to an income-based reduction.

For pass-through business owners, a Pass-Through Entity Tax (PTET) election may still move qualifying state income-tax payments to the entity return. The federal and state result depends on the owner's total itemized deductions, income, ownership, resident credits, payment timing, and the particular state's rules; PTET is no longer an automatic win merely because the former $10,000 cap applied.

The 2026 SALT Limit

For 2026, the SALT deduction is limited to $40,400 ($20,200 for married filing separately). The limit aggregates:

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

• State and local property tax.

The $40,400 limit is reduced when modified adjusted gross income exceeds $505,000 ($252,500 for married filing separately), but not below $10,000 ($5,000 for married filing separately). A married couple with $70,000 of otherwise deductible state and local taxes and MAGI below the phase-down threshold could deduct up to $40,400 in 2026, assuming they itemize.

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 intended result is an entity-level federal deduction plus a state credit or exclusion for the owner. The actual benefit must be modeled because state tax bases, credit mechanics, owner eligibility, federal deduction limits, and cash timing vary.

How to Model the PTET Benefit in 2026

Compare two complete projections: one with state tax paid personally and one with the eligible tax paid by the entity. The model should include the owner's projected 2026 SALT deduction after the $40,400 limit and income phase-down, the entity's federal deduction, the owner's state credit or exclusion, itemized-deduction limits, basis and distribution effects, and required estimated payments. A PTET election can remain valuable when personal SALT exceeds the available limit, but the benefit may be smaller than it was under the former $10,000 cap.

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, 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. Nonresident owners. PTET elections, nonresident filing obligations, owner-level credits, resident credits for taxes paid to other states, and composite-return rules differ by state. Model each owner's state returns before the entity elects; do not assume that residence in a no-income-tax state eliminates the benefit of a PTET credit in the source state.

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 generally applies to eligible pass-through income rather than W-2 wages. Reasonable compensation remains subject to payroll and individual income-tax rules. Compensation should be supportable under federal reasonable-compensation standards; it should not be reduced solely to increase a PTET benefit.

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.

2026 and Beyond

The old assumption that the $10,000 cap would simply disappear after 2025 is obsolete. The increased limit and income phase-down now require an annual comparison. PTET may still help when an owner's personal SALT exceeds the usable limit, but elections, payment deadlines, resident credits, and state conformity must be checked each year.

Bottom Line

For pass-through business owners in high-tax states, PTET remains an important tax planning decision, but it should be evaluated against the owner's current-year SALT capacity rather than an outdated $10,000-cap assumption.

Primary IRS Guidance

Use IRS Publication 505 (2026) for the current SALT limit and phase-down, and IRS Notice 2020-75 for the federal treatment of qualifying entity-level state income-tax payments.