PTET elections: getting your state tax deduction back
The short answer
The 2017 tax law capped the personal itemized deduction for state and local taxes at $10,000 — brutal for owners in high-tax states. The workaround: if your business is an S-corp or partnership, the entity itself elects to pay state income tax and deducts it as a full, uncapped business expense on its own return — a deduction the SALT cap never touches. You then get a credit or offset on your personal return so you are not taxed twice. Most income-tax states now allow this election, and for owners in the 9–13% state bracket range it is routinely a five- to six-figure federal deduction that would otherwise be capped at $10k.
Who this works for — and who it doesn't
Good fit
- S-corp or partnership owners in states with meaningful income tax (CA, NY, NJ, IL, and most others now offer it)
- Owners who itemize or would if not for the SALT cap
- Businesses with the cash flow to prepay state tax at the entity level rather than personally
Not a fit
- Sole proprietors and single-member LLCs with no entity-level return
- Owners in states with no income tax (no benefit to capture)
- Businesses that can't make the election deadline — most states require it well before year-end, some quarterly
How it works
- The entity elects PTET status in its state, usually annually and often with a hard deadline — miss it and you wait a year.
- The entity pays state income tax on its income (sometimes with required quarterly estimates) and deducts that payment in full on its federal return — no $10,000 ceiling.
- Owners get relief on their personal return: a credit against their state liability, a subtraction from state taxable income, or an exclusion — the exact mechanism varies by state and has to be checked.
- The owner's remaining SALT deduction (property tax, any non-PTET state tax) still runs into the $10,000 cap separately.
A worked example
Dana owns an S-corp generating $400,000 of pass-through income in a state with a 9% top rate.
Dana's federal effect, PTET vs. no election
At a 35% combined federal marginal rate, that is roughly $9,100 of federal tax saved — every year — simply by electing at the entity level instead of paying the identical tax personally. Illustrative only; the personal-side credit mechanics and any state add-back rules change the net number.
Common mistakes that give the deduction back
- Missing the state's election deadline, which in several states falls with the first quarterly estimate, months before the return is even prepared
- Assuming a multi-state business gets full credit in every state it operates — nonresident owner credits are inconsistent
- Not coordinating with AMT exposure, which can claw back part of the benefit for some owners
- Forgetting the entity still needs the cash to prepay the state tax, sometimes quarterly
Frequently asked questions
Does every state allow a PTET election?
No. A large majority of states with an income tax now allow it, but the mechanics, election deadlines, and estimated-payment rules vary significantly by state. You have to check your specific state and make the election on time — it is not automatic.
Does PTET help sole proprietors or single-member LLCs?
Generally no. PTET elections are built for entities that file their own return — S-corporations and partnerships (including multi-member LLCs taxed as partnerships). A Schedule C sole proprietor has no entity return to make the election on.
Do I still get a state tax credit or offset on my personal return?
Most states provide the owner a corresponding credit or subtraction on their personal return so the income is not effectively taxed twice — but the credit mechanics differ by state, and a few states only partially offset it. This has to be modeled state by state.
Is your state's PTET election worth making?
We'll check your state's rules, the deadline you're working against, and run the actual federal savings before you commit the entity to prepaying state tax.
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