The SALT Cap Workaround: How S-Corp Owners Get a Bigger Federal Deduction

Your S-Corp income is going to pay state taxes. The question is whether your current setup is giving you the highest federal deduction possible — or whether you're quietly leaving $20,000+ on the table every year.

The Problem: The SALT Deduction Cap

The Tax Cuts and Jobs Act of 2017 capped how much state and local tax (SALT) you can deduct on your federal personal return. In 2026, that cap is $40,400 — but there's a phase-out that quietly destroys the deduction for high earners.

If your income exceeds $500,500, the cap begins phasing down. By approximately $602,000, your SALT deduction is back to just $10,000 — regardless of how much you actually paid in state taxes.

That $24,050 isn't a one-time hit. It compounds year after year for every year you don't fix your setup.

The Fix: The Pass-Through Entity Tax (PTET) Election

The Pass-Through Entity Tax (PTET) is a state-level election that lets your S-Corp or partnership pay state income taxes at the entity level, rather than passing that liability through to your personal return where the SALT cap applies.

Here's why that matters:

• State taxes paid by your business are a federal business deduction
• Business deductions are not subject to the SALT cap
• You pay the exact same amount in state taxes — just from a different account
• Your pass-through income hits your personal return already reduced

The IRS explicitly blessed this strategy in IRS Notice 2020-75. This isn't a gray area. It's the intended use of the PTET framework.

A Real Dollar Example

Let's say you're a business owner with $600,000 in S-Corp pass-through income, $60,000 in state taxes owed on that income, and you're in the 37% federal bracket.

Same state tax bill. But with PTET you get a $22,200 federal deduction benefit instead of $3,700 — a difference of $18,500 in a single year, on the same income.

How to Set Up the PTET Election

The setup process varies by state, but here's the general framework:

• Confirm your entity qualifies
  The PTET election is available to S-Corporations and partnerships (including LLCs taxed as partnerships). Sole proprietors and single-member LLCs taxed as disregarded entities do not qualify.
• Find your state's PTET rules
  Search "[your state] pass-through entity tax election" and find the process on your state's department of revenue or taxation website. Each state has its own forms, deadlines, and calculation methods. Over 35 states have enacted PTET — including California, New York, New Jersey, Illinois, Massachusetts, and Connecticut.
• Make estimated PTET payments during the year
  Most states require quarterly estimated payments, similar to individual estimated tax payments. These must be paid from your business bank account to qualify as a business deduction. Mark these deadlines on your calendar — missing an estimated payment can cost you the full deduction.
• File the PTET election
  Your entity files an election to opt into the PTET regime. Some states require this before the tax year begins; others allow a retroactive election with the return filing. Getting the deadline wrong means losing the deduction for the entire year.
• Claim the PTET credit on your personal return
  When your S-Corp deducts the PTET payment on its federal return, your K-1 pass-through income is already reduced. Separately, your state provides a credit on your personal state return for the PTET paid at the entity level — so you're not taxed twice on the same income at the state level.

Who Benefits Most from PTET

PTET delivers the highest benefit when several factors align:

• Entity type: S-Corp or partnership (not sole proprietor)
• Income level: Pass-through income above $500,500 (where the SALT phase-out kicks in)
• State: You operate in a state that has enacted PTET legislation and has meaningful state income tax
• Federal bracket: 32% or 37% (higher bracket = greater benefit per dollar of additional deduction)
• State tax burden: Annual state taxes on business income well above $10,000

If you check all five boxes, the analysis almost always shows a meaningful annual tax savings — often $15,000–$30,000+ depending on income level and state.

A Note on State-Specific Rules

This strategy is highly dependent on your specific state. Rules vary significantly across:

• Election deadlines (some states require opt-in before the year starts)
• Estimated payment schedules and methods
• How the PTET is calculated (some states use different income definitions)
• How the personal credit is claimed
• Whether the election applies per-year or is ongoing

Working with a qualified CPA or tax attorney who knows your state's PTET rules is essential. Getting the election wrong — or missing the deadline — can mean losing the entire benefit for the year.

Bottom Line

This isn't a loophole. It's exactly what tax-smart business owners do, and it's exactly what states intended when they enacted PTET legislation. Same tax bill. Bigger deduction. That's the whole idea.

If you're running an S-Corp or partnership in a state with PTET and you're not using it, you're leaving real money on the table — year after year.

This article is provided for general educational and informational purposes only and does not constitute tax, legal, or investment advice. Every individual's tax situation is different. Consult with your own qualified tax advisor, CPA, or attorney before making any tax elections or financial decisions. Lindy Wealth is a registered investment adviser. Registration does not imply a certain level of skill or training.

Frequently Asked Questions