Is Your S-Corp Still Saving You Money in 2026? What the New QBI Rules Mean for Business Owners

Most business owners set up their S-Corp, saw the self-employment tax savings, and moved on. That structure has been sitting untouched ever since, sometimes for years. 

Here’s the problem: the rules just changed significantly. The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, made the Qualified Business Income (QBI) deduction permanent, expanded the income ranges that determine eligibility, and introduced a new minimum deduction floor, shifts that affect how much your current structure actually saves you. 

This isn’t a reason to panic. It’s a reason to do a mid-year review while there is still time to make adjustments that affect this tax year. 

What Is the QBI Deduction, and Why Does It Matter for S-Corp Tax Savings in 2026? 

The QBI deduction (Section 199A) allows pass-through business owners, including S-Corps, LLCs, and sole proprietors to deduct up to 20% of their qualified business income from their taxable income. 

The OBBBA didn’t increase the 20% deduction rate. That figure stayed the same in the final enacted law. What it did do is arguably more valuable for planning purposes: 

1. Made the deduction permanent, removing the uncertainty that had made long-term planning difficult 
2. Widened the phase-out ranges, so more high-income owners retain the full 20% deduction longer 
3. Added a $400 minimum deduction floor for taxpayers with at least $1,000 of active QBI 

For S-Corp owners, the real opportunity isn’t the rate itself, it’s whether your compensation structure, W-2 wages, and income levels are correctly positioned to maximize what you keep. 

If fully eligible and not limited by taxable income, W-2 wage, qualified property, or SSTB restrictions, a business owner with $400,000 in QBI could claim a 20% deduction.  

That equals $80,000 in reduced taxable income. At a 32% effective rate, it could represent roughly $25,600 in annual tax savings, but only if the structure is set up to capture the deduction fully. 

For business owners, QBI planning is not just a filing issue. It is part of a broader tax strategy for business growth that should be reviewed throughout the year. 

How the New Phase-Out Thresholds Affect Your S-Corp Tax Savings in 2026 

The QBI deduction doesn’t apply equally to everyone. Once your taxable income crosses certain thresholds, the deduction begins to phase out and for certain service businesses, it can disappear entirely. The OBBBA meaningfully expanded these ranges: 

Filing Status	2025 Phase-Out Starts	2026 Phase-Out Starts	Phase-Out Range Width
Single / Head of Household	~$197,300	~$201,750	$75,000  (up from $50,000)
Married Filing Jointly	~$394,600	~$403,500	$150,000  (up from $100,000)

What This Means in Plain Terms 

If your income previously put you in the partial phase-out zone, receiving only a fraction of the full deduction, you may now qualify for a larger deduction without changing a thing. The window stayed open longer. 

For owners of specified service businesses (law firms, consulting practices, IT service companies), this matters even more. These businesses face stricter QBI limitations at higher income levels. The wider phase-out range means some partners and owners who were losing the deduction entirely may now recapture part or all of it. 

Here is a quick summary of everything the OBBBA changed, and what stayed the same, on QBI: 

What Changed	Details for 2026
QBI rate	Stays at 20%. The 20% rate was confirmed in the final enacted law.
Permanence	QBI deduction is now permanent (previously set to expire end of 2025)
Phase-out range for single filers	Expanded from $50,000 to $75,000 above the threshold
Phase-out range or married filing jointly	Expanded from $100,000 to $150,000 above the threshold
New minimum deduction	$400 floor if you have ≥$1,000 of active QBI (indexed for inflation after 2026)
SALT cap	Increased to $40,400 for taxpayers with AGI under ~$500,000 through 2029
Bonus depreciation	100% restored permanently for qualifying assets

Three S-Corp Scenarios Playing Out Right Now 

Scenario 1: You’re Better Off Than You Think 

Your income falls in the $200,000–$350,000 range (single) or $400,000–$550,000 (married). You’ve been receiving a partial QBI deduction for years, watching it phase out before it fully kicks in. 

With the wider phase-out window, your deduction percentage may now be higher. In some cases, you may qualify for the full 20% QBI deduction when you did not before. 

Scenario 2: Your W-2 Salary vs. Distribution Split Needs Review 

S-Corp owners reduce self-employment taxes by paying themselves a “reasonable salary” and taking the rest as distributions. But QBI calculations are tied to W-2 wages paid, which creates tension. 

If your salary is too low, the IRS flags it. If it’s too high, you’re unnecessarily reducing your QBI deduction base. With the permanent 20% QBI deduction now locked in, the math on your optimal salary-to-distribution ratio deserves a mid-year look. This is why proactive tax strategy matters. By the time filing season arrives, many compensation and entity-structure decisions are already locked in. 

Scenario 3: Your Entity Structure Was Set Up for a Different Income Level 

Many business owners formed their S-Corp when they were earning $150,000–$200,000 a year. They’re now generating $600,000 or more. The structure hasn’t changed. The income has. 

At higher income levels, wage and property limitations interact with QBI in ways that weren’t a factor at lower income levels. The expanded phase-out range helps, but it doesn’t eliminate all constraints. For growing businesses, these decisions often require forecasting, cash flow analysis, and Virtual CFO advisory to understand the full financial impact. Whether a different structure could outperform your current setup is a conversation worth having with actual numbers. 

What About the SALT Deduction? One More 2026 Variable 

If your S-Corp operates in a state with a pass-through entity (PTE) tax election, the expanded SALT deduction cap, raised to $40,400 for 2026 for qualifying taxpayers under the OBBBA, creates an additional planning layer worth knowing about. 

PTE elections allow owners to deduct state income taxes at the entity level, effectively converting personal SALT exposure into a fully deductible business expense. For S-Corp owners in high-tax states, stacking a PTE election with the new $40,400 SALT cap can generate meaningful additional deductions. However, the two must be coordinated at the entity level, not left to sort out at filing time. 

The Real Cost of Not Reviewing Your S-Corp Structure in 2026 

Missed deductions do not appear as a line item on your return. They simply do not show up. That is why many business owners do not realize they have left money on the table until years later. 

For a business owner with $500,000 in qualified business income, fully optimizing QBI eligibility under the new 2026 rules could represent a 20% deduction on income that was previously partially or fully excluded from it. At a 35% effective rate, even recovering $50,000 of previously inaccessible deduction base translates to $10,000 in real annual tax savings. 

The most expensive entity structure isn’t the wrong one. It’s the right one from five years ago that nobody ever updated. 

Your 2026 S-Corp Mid-Year Review Checklist 

Use this to assess whether a review conversation makes sense: 

1. Has my annual profit grown by more than 20% since I last reviewed my entity structure? 
2. Have I confirmed my 2026 QBI projections reflect the updated phase-out thresholds? 
3. Is my W-2 salary still set correctly given my current income level? 
4. Does my state offer a PTE tax election, and am I using it? 
5. Has my CPA discussed OBBBA changes with me specifically, not just at a high level? 

If you answered “no” or “I’m not sure” to two or more of these, a mid-year strategy conversation is worth your time. 

How BTO-CPA PLLC Approaches S-Corp Tax Savings in 2026 

At BTO-CPA PLLC, tax strategy is not something we revisit only once a year at filing time. We work with business owners throughout the year to review compensation structures, model QBI scenarios under the updated thresholds, and confirm whether their entity structures are still doing the job they were built to do. 

The OBBBA changes create real planning opportunities for the business owners we serve, including law firms, IT service companies, and closely held businesses across Houston and beyond. But those opportunities require deliberate action. They do not happen automatically. 

Ready to review your S-Corp tax position? Explore our Tax Strategy & Planning services or schedule a strategy call with BTO-CPA PLLC. We will review your compensation structure, QBI position, and entity setup before year-end.