OBBBA Made the QBI Deduction Permanent: What's New in Section 199A

#What QBI is (refresher)

The Qualified Business Income deduction was created by TCJA in 2017. It lets eligible pass-through business owners (sole proprietors, partnerships, S-corp shareholders) deduct 20% of qualified business income on their personal return — effectively reducing the marginal tax rate on business income from up to 37% down to about 29.6% for owners who fully qualify.

For an S-corp owner making $200K of net business income, the QBI deduction at 20% = $40,000 off taxable income, which at a 32% marginal rate = ~$12,800 in tax savings annually.

Who qualifies:

• Pass-through entities: sole proprietorships (Schedule C), partnerships (Form 1065), S-corporations (Form 1120-S)
• NOT C-corporations (they get the 21% corporate rate instead)
• NOT W-2 wages or investment income

The complexity:

• “Specified service trade or business” (SSTB) limitations apply at higher incomes — doctors, lawyers, consultants, accountants, athletes, performing artists, and financial advisors face reduced or no QBI deduction above the phase-out thresholds
• Non-SSTB businesses (most other industries) face a W-2 wages + qualified property limitation above the phase-outs
• Below the thresholds, the 20% deduction applies cleanly

This complexity is why most ETS S-corp clients have always benefited significantly from QBI but the deduction has historically been the biggest source of tax-return preparation complexity.

#What OBBBA changed

#Change 1: Permanence

This is the headline. The QBI deduction was scheduled to expire at the end of 2025. OBBBA removed the expiration date from IRC §199A(i), making the deduction permanent indefinitely.

For ETS clients running pass-through businesses, this eliminates years of planning uncertainty. The “do I S-corp-elect before QBI sunsets?” conversation is gone. The “should I switch to C-corp to lock in the 21% rate before QBI disappears?” conversation is gone.

S-corp + LLC pass-through structures now have a stable tax landscape into the foreseeable future.

#Change 2: Expanded phase-out thresholds

For 2025, OBBBA increased the income thresholds at which QBI limitations begin:

Filing status	Pre-OBBBA threshold (2024)	Post-OBBBA threshold (2025)
Single	$197,300	$247,300
Head of household	$197,300	$247,300
Married filing jointly	$394,600	$494,600

Below these thresholds, the full 20% deduction applies without W-2/qualified-property limitations and without SSTB exclusions. Above these thresholds, the limitations + SSTB exclusions begin (with full phase-out at $50K above the threshold for single filers, $100K for MFJ).

For ETS clients in the income range affected by the change (single filers earning $197K-$247K, MFJ filers earning $394K-$494K), this is a meaningful expansion of the “clean” QBI deduction. Many SSTBs (specifically physicians, dentists, attorneys, financial advisors) who were partially phased out under pre-OBBBA thresholds now get the full deduction.

#Change 3: New $400 minimum deduction

OBBBA added a new minimum QBI deduction for taxpayers with at least $1,000 in aggregate qualified business income from all active qualified trades or businesses where the taxpayer materially participates.

The deduction is the greater of:

• The regular QBI deduction (20% of qualified income, subject to limitations)
• $400

For very small side-business owners earning just over $1,000 of QBI, this floor ensures at least a $400 benefit. Not life-changing, but cleans up edge cases.

#What this means for ETS-client planning

The OBBBA QBI changes affect ETS clients differently by segment:

1. S-corp owners with net income above ~$80K (the original break-even threshold for S-corp election): QBI was already a key part of the S-corp value proposition. Permanence removes the “should I lock in benefits before sunset?” pressure. S-corp election decisions can now be made on longer time horizons. S-corp election mechanics unchanged; the after-tax math just got more stable.

2. Single-member LLC owners with net income approaching the SSTB threshold: For physicians, dentists, attorneys, and other SSTBs in the $197K-$247K (single) or $394K-$494K (MFJ) range — the expanded phase-out thresholds mean you may now qualify for the full QBI deduction where you previously didn’t. Worth re-running the math.

3. Pass-through partnership members: QBI flows through K-1s. Permanence simplifies long-horizon partnership planning. The W-2 wages + qualified property limitation above the thresholds still applies for non-SSTB businesses.

4. C-corp founders considering switch to S-corp: The C-corp vs. pass-through decision was complicated by QBI uncertainty. With QBI permanent, the pass-through case is now stronger for businesses that don’t need C-corp specifically (i.e., not VC-track, not retaining large profits inside the entity, not pursuing QSBS).

5. Side-hustle / small-business owners with limited QBI: The new $400 minimum floor helps very small operators. Mostly cleanup at the edges.

#What didn’t change

#Common planning moves

For ETS clients in pass-through structures, three OBBBA-driven moves to revisit:

Move 1: Re-evaluate S-corp election timing. If you’re an LLC or sole prop near the ~$80-100K net income threshold and were waiting to S-corp-elect until QBI was sorted, the wait is over. Net income consistently above the threshold? Time to file Form 2553.

Move 2: Re-examine SSTB phase-out positioning. If you’re a physician, dentist, lawyer, or other SSTB owner with income near the new $247K/$494K thresholds, model where you actually land. Income management between W-2 and S-corp distribution can affect whether you stay under the threshold and get full QBI vs. partial-or-zero QBI above.

Move 3: Reconsider C-corp election (if you previously elected). Some businesses S-corp-converted to C-corp during the QBI uncertainty (locking in 21% corporate rate). With QBI permanent, those conversions may be worth revisiting — but revocation triggers a 5-year wait and built-in-gains tax. Don’t reverse without modeling.

#Common questions

When does the QBI permanence take effect? Tax years beginning after December 31, 2025. For most filers, that’s the 2026 tax year onward. The 2025 tax year was the last year QBI was still scheduled to expire — OBBBA’s signing in mid-2025 retroactively eliminated the sunset.

Does QBI apply to rental real estate? Sometimes. Real estate activity must rise to the level of a “trade or business” under Section 162 to generate QBI. The IRS provides a safe harbor (Rev. Proc. 2019-38) for rental real estate enterprises that meet specific operational requirements (250 hours of rental services per year, separate books per enterprise, contemporaneous records). Pure passive triple-net lease rentals typically don’t qualify.

Can I claim QBI if I’m a W-2 employee? No. Pure W-2 wages aren’t qualified business income. If you have a side business in addition to your W-2 (1099 consulting, side LLC, etc.), the side-business income is QBI-eligible.

What about REIT dividends and PTP income? Both qualify for the QBI deduction at the same 20% rate, but they’re calculated separately from regular business QBI (Section 199A(b)(7) treatment).

Does the SSTB limitation still apply above the threshold? Yes. OBBBA didn’t change the SSTB rules — it just raised the threshold at which they begin. Specified service businesses (medical, legal, accounting, consulting, financial services, performing arts, athletics) still face reduced QBI deduction above the phase-out threshold + complete phase-out at $50K (single) / $100K (MFJ) above the threshold.

Can I aggregate businesses for QBI purposes? Yes, under Regs. §1.199A-4 aggregation rules. Common ownership + same tax year + similar trades/businesses required. Useful for owner-operators with multiple LLCs or for managing the W-2 wages + qualified property limitations.

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If you run a pass-through business and haven’t re-modeled QBI in light of OBBBA’s permanence + expanded thresholds, the Discovery call is the right next step. We map QBI into your overall tax-planning picture as part of every Tax Analysis engagement.