The QBI Deduction: A 20% Discount on Business Income
Section 199A lets pass-through business owners deduct up to 20% of their profit — and the OBBBA made it permanent. But SSTB rules and W-2 wage limits can quietly erase it. Here is how to keep it.
A guide by Taxstra Tax & Accounting — CPA-led tax strategy for business owners
Quick Answer
The qualified business income (QBI) deduction under Section 199A lets owners of pass-through businesses — sole proprietorships, partnerships, S corporations, and most LLCs — deduct up to 20% of qualified business income from taxable income. The One Big Beautiful Bill Act (OBBBA) made the deduction permanent. For 2025, the full deduction applies below taxable income of $197,300 (single) or $394,600 (married filing jointly); above those thresholds, phase-outs and W-2 wage limits apply, and specified service businesses (SSTBs) can lose the deduction entirely. Starting in 2026, the OBBBA widens the phase-in ranges to $75,000 (single) and $150,000 (joint), keeping more upper-income owners partially eligible. You claim it on Form 8995 or 8995-A — no separate entity or election required.
Introduction: The "Pass-Through" Revolution
How Congress leveled the playing field between small business and Big Corp
When the Tax Cuts and Jobs Act (TCJA) was passed in 2017, the headlines screamed about the Corporate Tax Rate dropping from 35% to 21%. But that only helped "C-Corporations" (like Apple, Google, and massive conglomerates).
Small business owners—solopreneurs, S-Corps, LLCs, and Partnerships—screamed foul. "What about us?" they asked. We don't pay corporate tax; our income "passes through" to our personal returns, where it is taxed at rates up to 37%.
Congress responded with Section 199A: The Qualified Business Income (QBI) Deduction.
The premise is simple but powerful: If you have "Qualified Business Income" (profit from a trade or business), you are potentially allowed to deduct 20% of that income from your taxes. This isn't a deduction because you spent money. It's a "phantom" deduction. It is simply free money from the government to level the playing field between small business and Big Corp. The deduction was scheduled to expire after 2025 — the One Big Beautiful Bill Act (OBBBA) made it permanent.
For a business owner making $500,000 in profit, this could mean a $100,000 deduction. At a 35% tax rate, that is $35,000 in actual cash savings every single year.
The Catch: Complexity
While the concept is simple, the execution is arguably the most complex chapter in the current tax code. The deduction is subject to a maze of income thresholds, 'Specified Service' exclusions, and W-2 wage limitations. One wrong move—like paying yourself too little salary, or being classified in the wrong industry Code—can wipe out the entire benefit.
The Three Categories of Taxpayers
Find your income bucket before anything else
To understand if you qualify, you must first place yourself in one of three income buckets. These thresholds are adjusted annually for inflation — the base thresholds below are the 2025 figures, with the wider 2026 phase-out ranges enacted by the OBBBA.
| Income Bucket | Taxable Income | What It Means |
|---|---|---|
| Bucket 1: Below the Threshold — The "Safe Zone" | Single: < $197,300 | Married: < $394,600 (2025) | If your total taxable income is below these numbers, congrats. You get the full 20% deduction. It doesn't matter if you are a doctor, a lawyer, or a dog walker. It doesn't matter if you pay wages or not. The complex rules generally do not apply to you. |
| Bucket 2: The Phase-Out Zone — The "Warning Zone" | Single: $197,300 – $272,300 | Married: $394,600 – $544,600 (2026 ranges per OBBBA) | In this range, complexity ramps up. The W-2 Wage limits begin to kick in. If you are an SSTB (Service Business), your deduction starts getting mathematically shaved down to zero. Starting in 2026, the OBBBA widened this zone from $50K/$100K to $75K (single) / $150K (married) above the threshold — meaning more high earners keep a partial deduction. |
| Bucket 3: Above the Threshold — The "Danger Zone" | Single: above the phase-out range | Married: above the phase-out range | Here, the gloves are off. 1) If you are an SSTB, you get $0 deduction. 2) If you are a standard business, your deduction is capped by your W-2 Wages or Property Basis. |
The SSTB Minefield: Are You "Specified"?
The professions Congress excluded at high incomes
The IRS decided that certain high-income professionals shouldn't get this tax break if they make too much money. They created the category "Specified Service Trade or Business" (SSTB).
If you are in Bucket 3 (High Income) AND you are an SSTB, you lose the deduction entirely.
Who is an SSTB?
- Health: Doctors, Nurses, Dentists, Chiropractors, Psychologists.
- Law: Attorneys, Paralegals.
- Accounting: CPAs, Enrolled Agents, Bookkeepers.
- Actuarial Science: Actuaries.
- Performing Arts: Actors, Musicians, Directors (but not broadcasters).
- Consulting: Those who provide professional advice and counsel.
- Athletics: Athletes, Coaches, Team Owners.
- Financial Services: Financial Advisors, Investment Bankers, Wealth Managers.
- "Any trade where the principal asset is the reputation or skill of employees": This is the catch-all "Famous People" clause, mostly applying to celebrity endorsement deals.
The "Consulting" Exception
This is where we fight. The IRS definition of "Consulting" is somewhat narrow. It usually means advice and counsel. It may NOT include sales, brokerage, or embedded services. We have successfully argued that certain engineering consultants or software architects are actually ensuring product delivery, NOT just giving advice, thus removing the SSTB taint.
High income + SSTB? There are still moves to make.
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The "Guardrails": W-2 Wages and Property
The caps that apply to high earners who are not SSTBs
If you are NOT an SSTB (e.g., an Architect, Engineer, Manufacturer, Construction Company, Real Estate Investor), you can make $10 Million a year and still get the deduction.
However, Congress added a guardrail to ensure you are actually contributing to the economy. For high earners, your deduction is capped at the GREATER of:
- A50% of W-2 Wages PaidDoes your business hire people? If you pay $200k in wages, your max deduction limit is $100k. This encourages hiring.
- B25% of Wages + 2.5% of Property BasisThis was written specifically for Real Estate Investors who often have zero employees but millions in assets. You get credit for 2.5% of the unadjusted purchase price of your buildings.
Case Study: The Tale of Two Architects
Same profit, wildly different deductions
Scenario: Two architects, Alice and Bob, each own their own firms. Both are single. Both make $400,000 in Net Profit. Both are in the "High Income" bracket.
Alice's Firm: She has no employees. She is a design genius working solo. She pays $0 in W-2 wages (except to herself, which doesn't count for the limit in the same way).
Result: Her QBI Deduction is limited to 50% of Wages ($0). Deduction = $0. She pays tax on the full $400k.
Bob's Firm: Bob is less brilliant but hires two junior drafters, paying them $80,000 each ($160k total wages).
Result: His tentative QBI deduction is 20% of $400k = $80,000. His wage limit is 50% of wages ($160k * 50% = $80,000) — just enough to allow the full amount. Deduction = $80,000.
By hiring staff, Bob saved roughly $28,000 in taxes compared to Alice.
Advanced Strategy: Aggregation
Combining businesses to rescue the deduction
What if you own multiple businesses? Say you own a profitable Software Company (High Profit, Low Assets) and a Commercial Building (Low Profit, High Assets).
Standing alone, the Software Company might lose its deduction because it lacks W-2 wages or property basis. The Commercial Building might have huge basis (2.5%) but no profit to deduct against.
The Solution: We can elect to "Aggregate" these businesses if they share common ownership and operations. We combine the profit, the wages, and the property into one big pot. The high assets of the building can "rescue" the high profit of the software company, unlocking the full deduction for both.
What the OBBBA Changed for 2026
Permanence, wider phase-outs, and a new minimum deduction
The QBI deduction was originally scheduled to disappear after 2025 — every plan built on it had an expiration date. The One Big Beautiful Bill Act changed three things:
- It's permanent. No more sunset. Entity structuring, salary optimization, and retirement-plan decisions built around QBI now hold for the long term.
- Wider phase-out ranges starting in 2026. The phase-in range above the income threshold widens from $50,000 to $75,000 for single filers and from $100,000 to $150,000 for joint filers. Translation: SSTB owners and wage-limited businesses keep a partial deduction at income levels where the old rules would have zeroed them out.
- A new minimum deduction. Taxpayers with at least $1,000 of QBI from a business in which they materially participate get a minimum deduction of $400 (inflation-adjusted going forward) — a floor for small and side businesses.
The practical upshot: if you gave up on QBI in a prior year because your income was "too high," the 2026 math deserves a fresh look — especially for physicians and other SSTB owners in the newly widened phase-out zone.
How to Claim It: Form 8995 vs. 8995-A
No election, no separate entity — just the right form
There is no application and no election to make. You claim the QBI deduction on your Form 1040 using one of two forms:
- Form 8995 (Simplified): If your taxable income is below the threshold (Bucket 1), this is a short, half-page computation. Most taxpayers use this one.
- Form 8995-A: Required above the threshold — this is where SSTB status, the W-2 wage and property (UBIA) limits, and any aggregation elections get computed, schedule by schedule.
The deduction reduces taxable income, not adjusted gross income — you get it whether or not you itemize. Where owners actually lose money is upstream of the form: a salary set without QBI in mind, a rental that was never documented as a trade or business, or businesses that should have been aggregated and weren't. The form just reports the outcome of planning that either happened or didn't.
QBI FAQ
Common questions about the Section 199A deduction
Are You Losing Your 20%?
For High-Income Earners, QBI is not automatic. It requires aggression. We can restructure your entity, optimize your salary, or utilize Defined Benefit plans to reduce your taxable income below the phase-out threshold.
Find Out What You're Overpaying in Taxes
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