Why does paying state tax at the entity level help?

The individual deduction for state and local taxes is capped under section 164, so state income tax an owner pays personally may be only partly deductible on the federal return. When the partnership or S-corporation pays that tax itself, it is an ordinary business expense of the entity and is not subject to the individual cap, and the entity then passes less income through to its owners. The owner is made whole at the state level through a credit against state tax or an exclusion of the entity-taxed income. The net effect converts a capped personal deduction into a full deduction taken at the entity level.

Does every state offer this election?

No. The election exists only in states that have enacted a pass-through entity tax, and it is irrelevant in states that impose no individual income tax, where the owner has no state income tax to deduct. Each participating state sets its own eligibility rules, calculation, credit or exclusion mechanics, and election deadline, and those differ widely from state to state. Because both the benefit and the procedure turn on state law, the election has to be evaluated state by state and owner by owner.

What happens if I miss the election deadline?

The election is generally lost for that tax year and cannot be cured on the return afterward. State deadlines are firm and often fall early in the tax year or are tied to a required estimated payment, so a late filing usually leaves the state tax to be paid personally and deducted only within the individual cap. That is why the decision belongs in a planning conversation well before year-end rather than at filing time.

The state pass-through entity tax election and the SALT cap

The pass-through entity tax election lets a partnership or S-corporation pay state income tax at the entity level, where it stays fully deductible against federal income, instead of passing that tax to owners whose personal state-and-local deduction is capped. Owners then take a credit or exclusion on their state returns. Most states that levy income tax now offer the election, each with its own deadline and mechanics.

Verify annually — figures adjust

The One Big Beautiful Bill Act (P.L. 119-21, July 4, 2025) changed the individual state-and-local tax deduction cap with an income-based phase-down and a scheduled later reversion, which affects the value of this election; confirm the current treatment against irs.gov and your state's rules.

No capital outlay

The entity must have cash to pay the state income tax at the entity level, often through estimated payments during the year, which shifts the timing of when that tax leaves the business. The cost is otherwise administrative — the election, the entity return, and the owner-level credit reporting.

For tax year 2025

$40,000 ($20,000 married filing separately) (SALT deduction limit, 2025)
$500,000 ($250,000 married filing separately) (SALT phase-down MAGI, 2025)
$10,000 ($5,000 married filing separately) (SALT reduced-but-not-below floor, 2025)

Key points

A pass-through entity tax election lets a partnership or S-corporation pay state income tax at the entity level, deductible without the individual cap.
Owners are made whole on their state return through a credit against state tax or an exclusion of the entity-taxed income, depending on the state.
Federal deductibility generally depends on the entity actually paying the state tax, often through estimated payments during the year, rather than merely accruing it.
State election deadlines are firm, often tied to estimated payments, and a missed election is generally lost for that tax year.
The election is unavailable to sole proprietorships and single-member LLCs taxed as disregarded entities, and pointless in states with no individual income tax.

What is it?

The individual deduction for state and local taxes is capped on personal returns, so state income tax paid personally by an owner may be only partly deductible federally. The pass-through entity tax, often called the PTET, moves that state tax up to the business. The entity pays the state income tax itself, deducts it as an ordinary business expense with no cap, and passes a smaller amount of income through to owners.

Owners are then made whole at the state level, usually through a credit against their state tax or an exclusion of the entity-taxed income, depending on the state. The net effect is that state income tax on the business profit becomes a full federal deduction at the entity level rather than a capped personal one — a workaround the federal government has blessed for these entity-level taxes.

The individual cap was raised by the One Big Beautiful Bill Act, with an income-based phase-down for higher earners and a scheduled reversion to a lower cap in a later year. Those moving parts change how much the election is worth to any given owner, and the answer differs by state and by year.

The election is highly state-specific. States that offer a PTET set their own eligibility rules, calculation, and — critically — election deadlines, which are firm and vary widely. Some require the election early in the tax year; some tie it to estimated payments. This page explains the mechanism; the specifics belong to your state's rules and to a conversation about your own situation.

Statutory basis

§164 Taxes, including the deduction for state and local taxes

Who does it apply to?

Partnerships and S-corporations operating in states that offer a pass-through entity tax election and levy an individual income tax.

Owners whose personal state-and-local tax deduction is limited by the cap, so state tax paid personally is only partly deductible federally.

Multi-owner businesses where all or most owners benefit from the election and can coordinate on making it before the state deadline.

Who does it not work for?

Businesses in states that have no pass-through entity tax, or that impose no individual income tax at all, where there is nothing to elect.
Owners who miss the state's election deadline, which is firm and cannot generally be cured after the fact.
Situations where owners assume the election helps universally, when for some owners or some states the credit mechanics leave them no better or slightly worse off.
Sole proprietorships and single-member LLCs taxed as disregarded entities, which are not the pass-through entities the election applies to.

What does the IRS look at?

The PTET is administered by the states, so state revenue departments are the primary examiners, each applying its own election and credit rules.
Whether the entity made a valid election within the state's deadline and in the required manner.
Whether the entity-level tax was actually paid, since federal deductibility depends on payment rather than mere accrual in many cases.
Whether owners claimed the corresponding state credit or exclusion correctly and did not also deduct the same tax personally.
Whether the deduction is claimed in the correct year given when the entity paid the tax.

What does it cost to fund, and when does the window close?

The professional work is a CPA confirming the election makes sense for your state and your owners, and then meeting the state's election and payment deadlines, which are firm and vary by state. Because those deadlines often fall early in the year or with estimated payments, raise this well before year-end rather than at filing time.

Related strategies

Common questions

Why does paying state tax at the entity level help?: The individual deduction for state and local taxes is capped under section 164, so state income tax an owner pays personally may be only partly deductible on the federal return. When the partnership or S-corporation pays that tax itself, it is an ordinary business expense of the entity and is not subject to the individual cap, and the entity then passes less income through to its owners. The owner is made whole at the state level through a credit against state tax or an exclusion of the entity-taxed income. The net effect converts a capped personal deduction into a full deduction taken at the entity level.
Does every state offer this election?: No. The election exists only in states that have enacted a pass-through entity tax, and it is irrelevant in states that impose no individual income tax, where the owner has no state income tax to deduct. Each participating state sets its own eligibility rules, calculation, credit or exclusion mechanics, and election deadline, and those differ widely from state to state. Because both the benefit and the procedure turn on state law, the election has to be evaluated state by state and owner by owner.
What happens if I miss the election deadline?: The election is generally lost for that tax year and cannot be cured on the return afterward. State deadlines are firm and often fall early in the tax year or are tied to a required estimated payment, so a late filing usually leaves the state tax to be paid personally and deducted only within the individual cap. That is why the decision belongs in a planning conversation well before year-end rather than at filing time.

Mena Hemaia, CPA, CIA

Chief Executive Officer, Accountack — West Palm Beach, Florida

If you want to know which of these apply to your business specifically, that is a conversation about your actual numbers — not a seminar example.

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