Section 199A QBI Deduction for Active Traders — How OBBBA Made It Permanent

What §199A Actually Is

Section 199A of the Internal Revenue Code was created by the Tax Cuts and Jobs Act in 2017. It allows owners of pass-through businesses — sole proprietorships, partnerships, S-Corporations, and certain trusts and estates — to deduct up to 20% of qualified business income (QBI) from their taxable income.

The deduction was originally scheduled to expire after the 2025 tax year. The One Big Beautiful Bill Act (OBBBA), signed into law in July 2025, made §199A permanent — meaning it continues indefinitely for 2026 and beyond.

The Big OBBBA Clarification for Traders

Before OBBBA 2025, there was significant uncertainty in the trader-tax community about whether §475 mark-to-market election income qualified for the §199A QBI deduction. Section 475 converts capital gains and losses on trading positions to ordinary income/loss — a powerful election for active traders, but the QBI eligibility question was open.

OBBBA 2025 explicitly clarified that §475-elected trader income qualifies as QBI. This removes the prior uncertainty and materially strengthens the case for §475 election for TTS-qualifying taxpayers:

• §475 ordinary income → eligible for the 20% QBI deduction
• §475 ordinary losses → fully deductible (no $3,000 capital loss cap)
• §475 trades → exempt from the §1091 wash sale rule

Combined, OBBBA made the §475 election — for a trader who actually qualifies for TTS and intends to keep trading actively — one of the highest-leverage trader-tax moves available in 2026.

Who Qualifies for §199A as a Trader

The §199A QBI deduction is not automatic for anyone holding stocks. It requires both:

1. Trader Tax Status (TTS) — the IRS must recognize your trading as rising to the level of a trade or business. The relevant factors include frequency, volume, intent (short-term price profit), and time commitment. Casual investors and infrequent traders generally don't qualify.
2. Qualified Business Income (QBI) — income from a qualifying trade or business. For traders, this typically means either §475-elected ordinary trading income, or Schedule C trading-business income, or pass-through K-1 income from an S-Corp/partnership that holds the trading activity.

Even if both are met, the Specified Service Trade or Business (SSTB) classification kicks in above income thresholds — and trading is generally SSTB.

The 2026 SSTB Income Thresholds

Section 199A treats trading and dealing in securities, partnership interests, or commodities as an SSTB. SSTB classification doesn't kill the deduction outright — but it triggers a phase-out at specific income levels.

Filing Status	Full Deduction Below	Phase-Out Range	Deduction Lost Above
Single	~$191,950	$191,950 – ~$241,950	~$241,950
Married Filing Jointly	~$383,900	$383,900 – ~$483,900	~$483,900
Head of Household	~$191,950	$191,950 – ~$241,950	~$241,950

Thresholds adjust annually for inflation. 2026 figures above are typical-case estimates; confirm current figures with a CPA before relying on them for tax planning.

What this means in plain English

• If your total taxable income is below the threshold (single ~$191K / MFJ ~$384K) — you typically claim the full 20% QBI deduction on qualifying trader income.
• If you're in the phase-out range (next $50K single / $100K MFJ) — the deduction scales down for SSTB activities like trading.
• If you're above the upper threshold — SSTB taxpayers (including most active traders) generally lose §199A entirely.

Worked Example — §199A on $100K Trading Income

Same trader. Same $100,000 of qualifying trading-business income for the year. Filing single. Two scenarios based on total taxable income:

Scenario	Total Income	§199A Deduction	Approx. Tax Saved (~30% rate)
Below threshold	$100,000 single	$20,000 (full 20%)	~$6,000
Mid phase-out	$220,000 single	~$8,000 (~partial)	~$2,400
Above threshold	$300,000 single	$0 (SSTB excluded)	$0

Why §199A + §475 Election Pair So Well

OBBBA's clarification that §475-elected trader income qualifies as QBI is the single biggest reason §199A matters to active traders in 2026. Three layers stack:

1. §475 ordinary income treatment — converts capital gains to ordinary, unlocking unlimited loss deduction in down years
2. §199A QBI deduction — up to 20% off that ordinary income in profitable years (subject to thresholds)
3. No wash sale rule on §475 trades — eliminates one of the biggest tax-drag mechanics for active traders

For a TTS-qualifying trader expecting ongoing high trading volume and total income below the SSTB threshold, this combination meaningfully reduces effective tax rate vs the default capital-gains treatment.

When §199A Is NOT the Right Focus

Honest caveat: §199A doesn't help every trader. Cases where it typically doesn't apply or doesn't move the needle:

• Investors and casual traders without TTS — capital gains income is not QBI.
• High-income traders above the upper SSTB threshold — generally locked out of §199A entirely on trading income; entity-strategy planning matters more here.
• Futures-only traders with consistently profitable §1256 60/40 treatment — keeping the 60% long-term capital gains rate often beats ordinary-income-plus-§199A; CPA models both paths.
• Net-loss years — §199A is a deduction on positive QBI; in a loss year, there's no QBI to deduct against.

The Practical 2026 Trader Playbook

What most actively-trading TTS-qualifying taxpayers should typically consider in 2026, in priority order:

1. Confirm or establish TTS — without it, almost none of this applies. A CPA documents the frequency / volume / intent / time-commitment test before any election is filed.
2. Evaluate §475 election — strongest case yet in 2026 given OBBBA's clarification. Note the timing: existing traders elect via statement attached to prior-year return by April 15; new traders use Form 3115.
3. Model total taxable income vs SSTB threshold — if you're trending near or above the threshold, entity-strategy planning (S-Corp split, reasonable salary, retirement-contribution timing) starts to matter more than §199A itself.
4. Document QBI carefully — books and records that cleanly separate trader-business activity from investment activity make the §199A claim defensible in an audit.
5. Coordinate with state tax — most states conform to federal AGI but treatment of the federal §199A deduction varies; your CPA accounts for this.

Frequently Asked Questions

What is the §199A QBI deduction and how does it apply to traders?

Section 199A allows pass-through business owners — including active traders with trader tax status (TTS) — to deduct up to 20% of qualified business income (QBI) from their taxable income. For active traders, this typically means reducing the taxable portion of trading-business income by up to 20%, on top of normal trading-expense deductions. OBBBA 2025 made §199A permanent and clarified §475-elected trader income qualifies as QBI.

Do all traders qualify for the §199A QBI deduction?

No. A trader generally must have established trader tax status (TTS), and the trading activity must rise to the level of a "trade or business" for federal tax purposes. Investors and casual traders generally do not qualify. Even for qualifying traders, above income thresholds the SSTB limitation can reduce or eliminate the deduction. A CPA models eligibility before claiming.

What are the 2026 income thresholds for §199A?

For 2026, the §199A SSTB phase-out thresholds are approximately $191,950 for single filers and $383,900 for married-filing-jointly (these adjust annually for inflation). Below the thresholds, most qualifying traders can claim the full 20% deduction. Within the phase-out range, the deduction phases out for SSTB activities like trading. Above the upper threshold, SSTB traders generally lose the QBI deduction entirely.

How did OBBBA 2025 change §199A for traders?

Two material changes. First, OBBBA 2025 made §199A permanent — it was scheduled to expire after 2025; OBBBA codified it for the indefinite future. Second, OBBBA clarified that §475 mark-to-market-elected trader income qualifies as QBI. Combined, this materially strengthens the case for a §475 election for actively trading TTS-qualifying taxpayers.

Is trading classified as a Specified Service Trade or Business (SSTB)?

Yes — trading and dealing in securities is generally classified as an SSTB under §199A. SSTB status doesn't prevent the deduction outright, but it triggers the phase-out at the income thresholds. Below threshold, SSTB traders get the full 20%; within the phase-out range, it scales down; above the upper threshold, SSTB taxpayers generally lose §199A entirely. This is why high-income traders sometimes restructure (e.g. S-Corp split) to manage what counts as SSTB income versus reasonable salary — a CPA models the math.

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