If you run a sole proprietorship, partnership, S-corporation, or single-member LLC, the 20-percent qualified business income deduction is probably the largest line item on your personal tax return. For eight years it has lived on borrowed time, scheduled to disappear after 2025. That sunset is now gone. The One Big Beautiful Bill Act, signed into law on July 4, 2025, made Section 199A permanent, added a brand-new $400 minimum deduction for the smallest active businesses, and widened the phase-in range that determines who gets the full deduction and who gets sliced by the wage-and-capital limit.
If you waited until December to think about QBI, you were probably leaving money on the table. With permanence on the books, the planning calculus changes — multi-year wage tuning, real estate purchases timed for unadjusted basis, S-corporation conversions, and aggregation elections all become long-horizon decisions instead of one-shot bets against the calendar. Here is what changed, what stayed the same, and how to plan for it in 2026 and beyond.
What OBBBA Actually Changed
The headline is permanence. Section 199A no longer expires on December 31, 2025. The 20-percent rate, the SSTB carve-outs, the wage-and-capital limitation, and the REIT and PTP dividend components all survive intact. But four smaller changes effective for tax years beginning after December 31, 2025 deserve specific attention.
The 20-percent rate is permanent
This is the simple, important part. The deduction equals 20 percent of QBI, capped at 20 percent of taxable income reduced by net capital gains. Nothing about that formula changed. What changed is your planning horizon: you can now structure a real estate purchase, an S-corporation election, or a deferred compensation arrangement around QBI without worrying that the rule disappears the year after you act.
A new $400 minimum deduction
Starting in 2026, any taxpayer with at least $1,000 of QBI from an active qualified trade or business in which they materially participate is entitled to a minimum deduction of $400. Both numbers are indexed for inflation after 2026.
This is small dollars but real strategic value. It means a side-hustle consultant with $2,000 of net Schedule C income still gets $400 off taxable income, even though the standard 20-percent calculation would yield only $400 by coincidence. More important, it removes the previous edge case where rounding and a slightly negative aggregation killed the deduction entirely for very small operators. The "active" and "material participation" requirements are critical — passive rental income outside a real-estate-professional posture does not qualify for the floor.
Phase-in ranges widened
The wage-and-capital limit and the SSTB cliff both phase in across an income band above the threshold amount. OBBBA stretched that band:
- Single filers, heads of household, MFS: phase-in range expands from $50,000 to $75,000.
- Married filing jointly: phase-in range expands from $100,000 to $150,000.
For 2026, the threshold amount is roughly $201,750 single and $403,500 MFJ (these are inflation-adjusted each year). With the wider band, the top of the phaseout for joint filers moves up from approximately $503,500 to $553,500. For single filers it stretches from $251,750 to about $276,750.
What this means in practice: SSTB owners — health professionals, lawyers, accountants, consultants, financial advisors, performing artists, and the catch-all "reputation or skill" category — get a longer runway before the deduction starts to evaporate. And non-SSTB owners with low W-2 wages relative to QBI now have a wider band in which the wage limit only partially bites.
Existing limits otherwise preserved
OBBBA did not change the wage-and-capital test itself, the SSTB list, the aggregation rules, or the REIT and PTP dividend treatment. If you understood the architecture before, the architecture you understood still applies.
The Three Tiers of QBI Math
Whether you are a freelancer in Brooklyn or an S-corporation owner in Dallas, your QBI deduction lands in one of three tiers based on taxable income.
Tier 1 — Below the Threshold
Taxable income under roughly $201,750 (single) or $403,500 (MFJ) in 2026. Computation is simple: 20 percent of QBI from each qualified trade or business, regardless of SSTB status or W-2 wages paid. You file Form 8995, the short version. Most small-business owners live here.
Tier 2 — Inside the Phase-In Range
Taxable income up to roughly $276,750 (single) or $553,500 (MFJ) in 2026. Now the wage-and-capital limit and SSTB rules apply pro rata, scaling in across the $75,000 or $150,000 band. You file Form 8995-A. Math gets messier: you compute the full deduction and the wage-limited deduction, take a fraction of the difference based on where in the band you sit, and subtract.
Tier 3 — Above the Phase-In Cap
Above approximately $276,750 single or $553,500 MFJ in 2026. SSTBs are zeroed out — no QBI deduction at all on service-business income. Non-SSTBs are subject to the full wage-and-capital limit: the deduction is the lesser of 20 percent of QBI or the greater of (a) 50 percent of W-2 wages allocable to the trade or business, or (b) 25 percent of W-2 wages plus 2.5 percent of the unadjusted basis immediately after acquisition (UBIA) of qualified property.
The wider phase-in matters most for taxpayers who sit between the old $494,600 MFJ ceiling and the new $553,500 MFJ ceiling. Those taxpayers — many of them in the $450,000 to $550,000 joint-income zone — went from zero QBI deduction in Tier 3 (if SSTBs) to a partial deduction in Tier 2 starting in 2026.
Planning Levers That Now Matter for Years, Not Months
With permanence, the time horizon for QBI planning stretches from "this December" to "the next decade." That changes which levers are worth pulling.
Reasonable compensation for S-corporation owner-operators
The classic S-corp owner-operator question: how much W-2 wage do I pay myself? Too little and the IRS reclassifies distributions as wages. Too much and you sacrifice QBI on the wage portion (because W-2 wages are not QBI). With the wider phase-in band, more S-corp owners now land in Tier 2 where the wage-and-capital limit applies partially. The optimal wage is generally the smallest amount that (a) is defensible as reasonable compensation, and (b) produces enough W-2 wages to satisfy the 50-percent-of-wages or 25-percent-wages-plus-2.5-percent-UBIA limit.
For a non-SSTB owner with $400,000 of pre-wage net business income, no employees, no real property, and joint taxable income of $480,000, the calculation pivots almost entirely on owner wages. Pay $80,000 in wages and your QBI is $320,000; the wage limit produces 50 percent of $80,000 equals $40,000, which is far less than 20 percent of $320,000 equals $64,000. The wage limit bites. Pay $160,000 in wages and the wage limit becomes 50 percent of $160,000 equals $80,000, which now exceeds 20 percent of $240,000 equals $48,000. The wage limit no longer bites, but the deduction shrank. Optimal wage tuning exists somewhere in between — and now, with permanence, it's worth modeling annually.
UBIA: real property and equipment as a QBI lever
The second prong of the wage-and-capital limit — 25 percent of W-2 wages plus 2.5 percent of UBIA of qualified property — is the one most small businesses ignore. UBIA is the unadjusted basis of depreciable tangible property used in the qualified trade or business at the close of the tax year, computed before any Section 179 expensing or bonus depreciation. The recovery period must not have ended (generally 10 years from placed-in-service date, or longer if the property's depreciable recovery period is longer).
For a real-estate-heavy operation — a self-storage facility, a small medical building, a restaurant that owns its land and structure — UBIA can carry the wage-and-capital limit even when payroll is modest. Plan acquisitions to land before year end. Document basis allocation between land (which does not count) and depreciable structure (which does). Cost-segregation studies that accelerate depreciation do not reduce UBIA, because UBIA is the unadjusted basis.
Aggregation election under Reg. 1.199A-4
If you own multiple trades or businesses that satisfy common-ownership and common-tax-year tests, you can elect to aggregate them and apply the wage-and-capital limit to the combined pool. Aggregation helps when one entity has high QBI but low wages and another has low QBI but high wages or UBIA. The election is made on the tax return, with disclosure on Form 8995-A Schedule B. Once made, it is binding in subsequent years and must be made by all owners consistently. Aggregation will not let you combine SSTB and non-SSTB activities — those stay separate.
Specified Service Trade or Business positioning
The SSTB list is famously fuzzy: health, law, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage, investment management, dealing in securities or commodities, and "any trade or business where the principal asset is the reputation or skill of one or more of its employees or owners." Engineering and architecture are explicitly excluded.
Two planning moves matter:
- Cracking and packing. Where an SSTB owner also runs a non-SSTB ancillary business (real estate leased to the SSTB, a separate equipment-rental entity, an administrative services entity), the non-SSTB business can preserve its QBI deduction at Tier 3. Be careful: the regulations contain anti-cracking rules for businesses with 50-percent-or-more common ownership where one provides "substantially all" of its property or services to an SSTB.
- De minimis carve-out. If a trade or business has gross receipts of $25 million or less, an SSTB element representing less than 10 percent of gross receipts is disregarded. Above $25 million, the threshold drops to 5 percent. This is how a mixed operation with a small consulting arm can avoid being tarred as an SSTB across the entire entity.
REIT and PTP dividends
The QBI deduction has a second component most owners forget: 20 percent of qualified REIT dividends and qualified publicly-traded partnership income, regardless of taxable income or W-2 wages. If you hold REIT positions in a taxable brokerage account, your Form 1099-DIV Box 5 reports the qualifying dividends. They feed directly into your Form 8995 or 8995-A and produce a deduction even at high income levels. Do not overlook this — for retirees with significant REIT exposure, it can be a meaningful number.
Where Recordkeeping Wins or Loses the Deduction
QBI math depends on getting four numbers right: net business income from each trade or business, W-2 wages allocable to each, UBIA of qualified property, and whether each activity is an SSTB. If your books are messy, the deduction is a guess — and a guess that the IRS can challenge.
Three recordkeeping habits make a difference:
- Trade-or-business segregation. If you run multiple activities in one entity, your books need to track each one's revenue, expenses, payroll, and property separately. Without segregation you cannot defend an aggregation election, and you cannot prove that an ancillary line of business is not an SSTB.
- Wage allocation. When employees split time between qualified and non-qualified work, payroll records need to substantiate the allocation. Owner-officer compensation in an S-corp needs reasonable-compensation documentation tied to industry comparables.
- Fixed asset register with placed-in-service dates and original basis. UBIA is computed from original cost, not book value. Your fixed asset register has to retain the unadjusted basis and original placed-in-service date for every depreciable asset until its recovery period ends.
This is where plain-text accounting earns its keep. A ledger that records every transaction in human-readable form, with property and payroll categorized at the source, gives you something you can defend in an audit and re-query when a planning question comes up mid-year.
Common Mistakes That Shrink the Deduction
A few patterns show up repeatedly in returns that leave QBI on the table.
- Guaranteed payments to partners. Guaranteed payments from a partnership are not QBI to the recipient. Restructure as priority distributions tied to capital where the underlying economics allow it.
- Net losses across activities. A QBI loss in one trade or business offsets QBI from others before the 20 percent is applied. If you have a loss-making startup activity, project whether suspending the deduction year-to-year produces a worse outcome than recharacterization.
- Wage classification on rentals. Self-rentals — leasing a building you own to your own operating business — can qualify as a trade or business under the self-rental rule. Pure triple-net leases generally do not rise to a trade-or-business level absent substantial owner involvement; the safe-harbor under Rev. Proc. 2019-38 requires 250 hours of rental services and contemporaneous records.
- Married couples filing separately. The MFS threshold is the single-filer threshold, not half the joint threshold. Couples close to the joint phase-out sometimes do worse by filing separately than by filing jointly.
- Not filing Form 8995 at all. The deduction is not automatic. If your software does not generate Form 8995 or 8995-A, the deduction does not appear on Line 13 of Form 1040.
A Decision Framework for 2026
If you are a pass-through owner trying to translate all of this into action, the rough order of operations looks like:
- Estimate where your taxable income will land — below threshold, inside phase-in, or above. This determines whether you file Form 8995 or 8995-A and which limitations apply.
- If you are in Tier 1, your work is mostly clean recordkeeping and confirming the deduction appears on the return.
- If you are in Tier 2, model wage levels, UBIA additions, and retirement plan contributions to find the combination that maximizes the deduction net of other taxes.
- If you are in Tier 3 and your activity is an SSTB, ask whether deferred compensation, defined-benefit pension contributions, or charitable bunching can pull taxable income back into Tier 2.
- If you are in Tier 3 and your activity is non-SSTB with binding wage limits, evaluate raising owner wages, adding W-2 staff, or acquiring qualified property to add UBIA.
- If you own multiple businesses, evaluate the aggregation election with disclosure on Form 8995-A Schedule B.
Keep Your Financial Records Audit-Ready From Day One
Whether you are tuning S-corporation owner wages, layering an aggregation election across multiple entities, or substantiating UBIA on a property purchase, the QBI deduction rewards clean books and punishes vague ones. Beancount.io provides plain-text, version-controlled accounting that gives you a complete, transparent record of every transaction — exactly the kind of audit trail that a Form 8995-A defense requires. Get started for free and see why developers, accountants, and small-business owners are switching to plain-text accounting.