Form 8995-A + AI Agent Skill: Full QBI Deduction Guide 2026

Hi, I'm Slava, CEO and co-founder of Jupid. After scaling Anna Money to $40M ARR and working with 60,000+ small business owners, I've watched a specific pattern repeat: a doctor, lawyer, or consultant crosses a taxable-income threshold, opens TurboTax expecting their usual 20% QBI deduction, and ends up with a number that looks nothing like what they remember. That's Form 8995-A doing its job — and most people fill it in wrong.

Official IRS resources: Form 8995-A (PDF) · Instructions (PDF) · About Form 8995-A

The simple QBI form (Form 8995) is six lines. Form 8995-A is four pages plus four schedules (A, B, C, D). The reason for the difference is that once your taxable income passes a threshold or your business is a "specified service trade or business" (SSTB), the §199A deduction is no longer 20% of qualified business income — it's the lesser of multiple competing limits, with phase-ins, W-2 wage tests, and basis-of-property caps stacked on top.

This guide walks Form 8995-A line by line, explains when the SSTB phaseout applies, shows the W-2 wage / unadjusted basis (UBIA) limitation in full, and ends with two worked examples — a single-physician sole proprietor in the SSTB phase-in zone and an MFJ S-corp software consultant well above the threshold but with enough W-2 wages to take the full deduction.

What Is Form 8995-A?

Form 8995-A — officially "Qualified Business Income Deduction" — is the long form of the §199A computation. It's used by any taxpayer whose taxable income (before the QBI deduction) exceeds the inflation-adjusted threshold OR who has income from a specified service trade or business (SSTB) in or above the phase-in zone. It replaces the simplified Form 8995 in those cases.

Legal Basis: IRC §199A — Qualified Business Income Deduction. Made permanent by the One Big Beautiful Bill Act (OBBBA) of 2025; previously scheduled to sunset after tax year 2025 under TCJA. Treasury regulations: §1.199A-1 through §1.199A-6.

Who Files Form 8995-A?

You file Form 8995-A if any of the following is true:

• You file Form 1040 (or 1040-SR, 1040-NR, 1041) AND
• You have qualified business income, qualified REIT dividends, or qualified PTP income from a Schedule C, Schedule E (rental rising to a §162 trade or business), partnership K-1, S-corp K-1, or qualifying real estate enterprise AND
• Your taxable income before the QBI deduction exceeds the threshold for your filing status, OR
• You have any income from an SSTB and your taxable income is in or above the phase-in zone

Who Files Form 8995 Instead (the short form)?

• Taxable income before QBI is at or under the threshold ($197,300 single / $394,600 MFJ for 2024; $241,950 / $483,900 for 2025), AND
• Not a patron of an agricultural or horticultural cooperative

Who Skips QBI Entirely?

• W-2 employees — wage income is not QBI
• C-corp shareholders — C-corp income is taxed at the corporate rate, not §199A
• Capital gains, dividends (other than qualified REIT dividends), interest income — not QBI
• Foreign-source income that doesn't qualify as a US trade or business

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Executive Summary: 2026 Key Numbers

The §199A thresholds and phase-in ranges are inflation-adjusted yearly. The 2025 figures below come from Rev. Proc. 2024-40. The 2026 figures (for returns filed in 2027) are typically published by the IRS in October-November 2025 — verify against the current Revenue Procedure before filing a 2026 return.

Legal Basis: IRC §199A(b), §199A(d), §199A(e), §199A(f); Treas. Reg. §1.199A-1 through §1.199A-6. 2025 figures from Rev. Proc. 2024-40, Section 3.27.

Permanence: The 20% QBI deduction was made permanent by the One Big Beautiful Bill Act (OBBBA) signed into law in 2025. It was originally scheduled to expire December 31, 2025 under TCJA's individual provisions sunset.

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What Is an SSTB?

A Specified Service Trade or Business (SSTB) is any business in the following fields, listed verbatim from IRC §199A(d)(2)(A) and Treas. Reg. §1.199A-5(b)(2):

• Health (physicians, dentists, pharmacists, nurses, veterinarians, physical therapists, psychologists)
• Law (lawyers, paralegals, mediators)
• Accounting (CPAs, enrolled agents, bookkeepers, tax preparers)
• Actuarial science
• Performing arts (actors, musicians, directors)
• Consulting (any business providing professional advice and counsel)
• Athletics (athletes, coaches, team managers)
• Financial services (financial advisors, wealth managers, retirement planners)
• Brokerage services (stockbrokers — not real estate or insurance brokers)
• Investing and investment management
• Trading and dealing in securities, partnership interests, or commodities
• Any trade or business where the principal asset is the reputation or skill of one or more employees or owners (the "celebrity" provision)

Critical exclusions (these are NOT SSTBs):

• Architecture and engineering — explicitly carved out by IRC §199A(d)(2)(A)
• Real estate brokerage and insurance brokerage — only securities brokerage is SSTB
• Software development, manufacturing, retail, e-commerce — not SSTB

If your business is an SSTB and your taxable income is at or above the threshold, the §199A deduction phases down. If your taxable income exceeds the top of the phase-in range, your QBI deduction from the SSTB is zero.

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How Form 8995-A Is Organized

The form has four pages and four schedules:

You complete the schedules as needed, then carry totals forward through Parts I-IV. The bottom-line number on Part IV Line 39 flows to Form 1040 Line 13 (Qualified Business Income Deduction).

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Part I — Identifying Your Trades or Businesses

Part I collects basic information about each qualified trade, business, or aggregation. You list up to three on the main form; additional businesses go on continuation pages.

Line 1, columns (a)-(c)

For each business, enter:

• (a) Trade, business, or aggregation name
• (b) Check if SSTB (specified service trade or business)
• (c) Taxpayer Identification Number (EIN if the business has one; SSN otherwise)

If you elected to aggregate multiple businesses under Treas. Reg. §1.199A-4 (Schedule B), enter the aggregation as a single line.

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Part II — Determining Adjusted QBI per Business

Part II is the per-business calculation. You complete it once per row from Part I.

Line 2 — Qualified business income (loss) from the trade, business, or aggregation

For each business, enter the QBI. QBI is the net amount of qualified items of income, gain, deduction, and loss from the qualified trade or business. Sources:

• Schedule C net profit (Line 31), reduced by the deductible portion of self-employment tax, self-employed health insurance, and self-employed retirement contributions allocable to that business
• K-1 from S-corp or partnership (Box 17 or 20 with code Z, AA, or AB depending on year)
• Schedule E rental real estate that rises to a §162 trade or business (or qualifies under the §1.199A-1(b)(14) rental real estate safe harbor)

QBI does NOT include:

• Reasonable compensation paid by an S-corp to the owner (W-2 wages are not QBI)
• Guaranteed payments to a partner
• Capital gains/losses
• Dividends (other than qualified REIT dividends, handled separately on Part IV)
• Interest income not allocable to a trade or business

Line 3 — Multiply Line 2 by 20%

Tentative QBI deduction at the maximum rate. This is the upper bound before any limit applies.

Line 4 — Allocable share of W-2 wages from the trade, business, or aggregation

W-2 wages paid by the business in the calendar year ending in the tax year. For a Schedule C, these are wages on Line 26 paid to W-2 employees. For an S-corp, this includes the owner's reasonable compensation (which is itself W-2 wages). For a partnership, guaranteed payments are NOT W-2 wages; only actual W-2 wages paid to employees count.

Line 5 — Multiply Line 4 by 50%

The "50% W-2 wages" limit (one of the two options in IRC §199A(b)(2)(B)).

Line 6 — Multiply Line 4 by 25%

First half of the alternative limit.

Line 7 — UBIA of qualified property

Unadjusted Basis Immediately after Acquisition of qualified property — generally, the original purchase price of depreciable tangible property that's still within its depreciable period (the longer of 10 years or its MACRS recovery period). Land doesn't count. Computed per business; if you have multiple businesses, allocate.

Line 8 — Multiply Line 7 by 2.5%

Second half of the alternative limit.

Line 9 — Add Lines 6 and 8

The "25% W-2 wages + 2.5% UBIA" alternative limit.

Line 10 — Greater of Line 5 or Line 9

The W-2 / UBIA limit is the greater of the two formulas. This protects capital-intensive businesses (like real estate, which has lots of UBIA but few wages) and labor-intensive businesses (which have lots of wages but little UBIA).

Line 11 — Smaller of Line 3 or Line 10

The W-2 / UBIA limit applies. This is the adjusted QBI for this business before any phase-in reduction.

Line 12 — Phased-in reduction (from Schedule A, if applicable)

If your taxable income is in the phase-in zone AND the business is SSTB, complete Schedule A and enter the result here. Otherwise, $0.

Line 13 — Subtract Line 12 from Line 11

Adjusted QBI for this business after phase-in reduction (if any).

Line 14 — Total adjusted QBI

If you have multiple businesses, sum each business's Line 13 here. This is your aggregate qualified business income before the overall taxable-income cap.

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Schedule A — SSTB Phase-In Computation

Schedule A is only used if (a) the business is SSTB AND (b) your taxable income is in the phase-in zone. If you're below the threshold, you file Form 8995 (the short form). If you're above the top of the phase-in range, your SSTB QBI deduction is zero — skip the schedule and report $0 for that business.

The phase-in window is:

• Single / HoH / MFS: $50,000 wide ($241,950 to $291,950 for 2025)
• MFJ / QSS: $100,000 wide ($483,900 to $583,900 for 2025)

Schedule A Line-by-Line

Line 1 — Trade or business name (must match Part I).

Line 2 — Taxable income before QBI deduction (from Form 1040 Line 11 minus Line 12, before Line 13).

Line 3 — Threshold for filing status ($241,950 single / $483,900 MFJ for 2025).

Line 4 — Subtract Line 3 from Line 2. The amount by which taxable income exceeds the threshold.

Line 5 — Phase-in range ($50K single / $100K MFJ).

Line 6 — Divide Line 4 by Line 5. This is the phase-in percentage (the share of QBI you LOSE). Truncate or round per the instructions; Form 8995-A instructions specify computing to at least four decimal places.

Line 7 — Applicable percentage = 1 − Line 6. The share of QBI you KEEP.

Lines 8-12 — Apply Line 7 to QBI, W-2 wages, and UBIA, recomputing the W-2/UBIA limit on the reduced amounts.

Line 13 — Phase-in reduction = the amount Line 11 (Part II) was reduced by applying the applicable percentage.

This number flows back to Part II Line 12.

Worked snippet: Single filer with $275,000 taxable income, SSTB business with $90,000 QBI.

• Excess over threshold = $275,000 − $241,950 = $33,050
• Phase-in % = $33,050 / $50,000 = 0.661 (66.1% lost)
• Applicable % = 1 − 0.661 = 0.339 (33.9% kept)
• Reduced QBI for SSTB calc = $90,000 × 0.339 = $30,510
• Tentative deduction on reduced QBI = $30,510 × 20% = $6,102 (before W-2/UBIA limit)

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Schedule B — Aggregation of Trades or Businesses

You can ELECT to combine ("aggregate") multiple trades or businesses for the W-2 wage / UBIA limit if all of the following are true (Treas. Reg. §1.199A-4(b)):

1. Same person or group owns at least 50% of each business (directly or by attribution)
2. Common ownership exists for the majority of the tax year, including the last day
3. All businesses use the same tax year
4. None of the businesses is an SSTB
5. The businesses share at least two of three factors:
   • Provide products, property, or services that are the same or customarily offered together
   • Share facilities or significant centralized business elements (e.g., personnel, accounting, legal, manufacturing, purchasing, HR, IT)
   • Operate in coordination with or reliance upon other businesses in the aggregated group

Why aggregate? If one business has high QBI but low W-2 wages (would be limited) and another has low QBI but high W-2 wages, aggregating lets the wages of the second cover the first.

Once elected, aggregation is binding for that year and all later years unless circumstances materially change. You report it consistently every year on Schedule B.

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Schedule C — Loss Netting and Carryforward

If any of your businesses has a negative QBI (a QBI loss), Schedule C tells you how to allocate that loss across the positive-QBI businesses before applying the W-2/UBIA limit.

The rule: net the QBI losses against positive-QBI businesses proportionally based on the relative amounts of positive QBI. If the total net QBI is still negative, the full negative amount carries forward to next year as a "qualified business loss carryover" (QBI Line 16 next year).

Important: A QBI loss carryforward reduces next year's QBI dollar-for-dollar. It does NOT reduce ordinary taxable income directly — that's a different concept. The §199A deduction can never be negative.

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Schedule D — Special Rules for Patrons of Agricultural or Horticultural Cooperatives

This applies only to farmers and other patrons of cooperatives. The §199A(g) DPAD (Domestic Production Activities Deduction for cooperatives) computation lives here. If you're not a cooperative patron, skip Schedule D entirely.

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Part III — Phased-in Reduction

Part III on the main form is essentially a summary of Schedule A — used when there's an SSTB phase-in. If Schedule A wasn't needed (no SSTB or above the top of phase-in), Part III is blank.

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Part IV — Determining Your QBI Deduction

Part IV combines all your businesses and applies the overall taxable-income cap.

Line 27 — Total QBI component

Sum of every business's Line 13. (Or carry from Schedule C if you had loss netting.)

Lines 28-31 — Qualified REIT dividends and PTP income

• Line 28 — Qualified REIT dividends (1099-DIV Box 5) and qualified Publicly Traded Partnership (PTP) income (from K-1).
• Line 29 — Qualified REIT/PTP loss carryforward from prior years (negative; reduces Line 28).
• Line 30 — Add Lines 28 and 29. If negative, enter zero (the loss carries to next year on Line 29 instead).
• Line 31 — 20% of Line 30. The REIT/PTP component of the QBI deduction. Note: REIT/PTP income is NOT subject to the W-2/UBIA limit, even if you're above the threshold. This is one of the few unambiguous wins of the §199A regime.

Line 32 — Add Line 27 and Line 31

Combined QBI deduction before the overall taxable-income cap.

Line 33 — Taxable income before QBI deduction

From Form 1040 Line 11 (AGI) minus Line 12 (standard or itemized deduction). Do NOT subtract Line 13 — that's what we're computing.

Line 34 — Net capital gains

Net long-term capital gains (from Schedule D Line 16) plus qualified dividends (Form 1040 Line 3a). The §199A deduction can't reduce the income that's already taxed at preferential capital-gains rates.

Line 35 — Subtract Line 34 from Line 33

Taxable income excluding net capital gains.

Line 36 — Multiply Line 35 by 20%

The overall taxable-income cap on the QBI deduction.

Line 37 — Smaller of Line 32 or Line 36

The §199A deduction is the lesser of (a) the QBI-component-plus-REIT/PTP total, or (b) 20% of taxable income excluding net capital gains. This prevents the deduction from sheltering capital-gains-taxed income.

Lines 38-39 — Patron reduction and final deduction

If you completed Schedule D as a cooperative patron, Line 38 captures any reduction. Line 39 is the final QBI deduction — flows to Form 1040 Line 13.

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Worked Example #1 — Dr. Patel, Single, Family Medicine SSTB in Phase-In

Dr. Patel is a single 38-year-old family-medicine physician operating as a sole proprietor. Her 2025 numbers:

• Schedule C net profit: $300,000 (medical practice — SSTB)
• W-2 wages paid by the practice (to a nurse + receptionist): $80,000
• UBIA of qualified property: $50,000 (medical equipment, computers — within depreciable period)
• Self-employment tax (Schedule SE): $22,632; deductible half = $11,316
• Self-employed health insurance: $9,000
• SEP-IRA contribution: $25,000 (20% of net SE earnings approximately)
• No W-2 income, no other adjustments

Schedule 1 + Form 1040 (before QBI)

Wait — Dr. Patel is just under the $241,950 single threshold. Let me adjust the example so she's actually in the phase-in zone, which is what the example calls for.

Adjusted scenario: Dr. Patel has interest income of $36,000 from a brokerage account. Her taxable income before QBI is now $275,684. Round to $275,000 for the worked numbers below.

QBI Calculation

QBI for the medical practice (Schedule C net profit reduced by allocable adjustments):

• Schedule C profit: $300,000
• Less: ½ SE tax allocable: $11,316
• Less: SE health insurance allocable: $9,000
• Less: SEP-IRA contribution: $25,000
• QBI = $254,684

(Note: there's ongoing debate about whether the ½ SE-tax adjustment must reduce QBI. The IRS position in Treas. Reg. §1.199A-3(b)(1)(vi) is yes. Some practitioners disagree. We follow the regs.)

Form 8995-A Schedule A (SSTB Phase-In)

Form 8995-A Part II (with Schedule A applied)

Apply 33.9% to QBI, W-2 wages, and UBIA:

• Reduced QBI: $254,684 × 0.339 = $86,338
• Reduced W-2 wages: $80,000 × 0.339 = $27,120
• Reduced UBIA: $50,000 × 0.339 = $16,950

Phase-in reduction calculation: tentative deduction at 20% × reduced QBI = $86,338 × 20% = $17,268, reapply W-2 limit on reduced amounts (50% × $27,120 = $13,560; 25% × $27,120 + 2.5% × $16,950 = $6,780 + $424 = $7,204; greater = $13,560). Smaller of $17,268 and $13,560 = $13,560. So Line 13 = $13,560 (the W-2 limit binds after the phase-in).

Form 8995-A Part IV

Form 1040 Line 13 = $13,560 for Dr. Patel. Without Form 8995-A, she might have entered $50,937 (20% × $254,684) and triggered an IRS notice.

The phase-in cost her roughly $37,000 of deduction — but the W-2 wage limit also bound, dropping the final number further. Lesson: above-threshold SSTB filers benefit from hiring W-2 staff (the receptionist + nurse mattered) and from holding more depreciable property.

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Worked Example #2 — Marcus, MFJ S-Corp Software Consultant Above Threshold

Marcus runs a software consulting S-corp (NOT an SSTB — software development is explicitly carved out of the consulting SSTB definition). He files MFJ with his spouse, who has $40,000 in W-2 wages from her employer.

His 2025 numbers:

• S-corp K-1 ordinary business income: $400,000 (this is QBI)
• Marcus's reasonable compensation as S-corp employee: $150,000 W-2 (this is NOT QBI but IS counted as W-2 wages of the business)
• W-2 wages paid by the S-corp to other employees: $200,000
• Total W-2 wages of the business: $350,000 ($150,000 owner + $200,000 staff)
• UBIA of qualified property: $80,000 (laptops, servers)
• Spouse's W-2: $40,000
• Joint taxable income before QBI deduction: $550,000 (above the $483,900 MFJ threshold but under the top of the $583,900 phase-in)

Why Marcus Doesn't Go Through Schedule A

Marcus's business is not an SSTB (software is excluded). Schedule A applies only to SSTBs in the phase-in zone. Marcus skips Schedule A entirely. Above the threshold, the W-2 wage / UBIA limit applies in full (not phased in).

Form 8995-A Part II for Marcus

The W-2 wage limit ($175,000) is well above the tentative 20% deduction ($80,000), so it doesn't bind. Marcus gets the full 20%.

Form 8995-A Part IV for Marcus

Form 1040 Line 13 = $80,000 for Marcus. He saves roughly $26,400 in federal tax (at his 33% effective marginal rate including SS/Medicare on the consulting income) compared with not claiming QBI.

Lesson: for non-SSTB owners above the threshold, the W-2 wage / UBIA limit is the binding constraint. Marcus's S-corp paying him $150,000 in reasonable comp — which most owners try to minimize for SS/Medicare reasons — actually helps him here, because that $150,000 counts toward the 50% W-2 wage test. Pure passthrough income with no employees and no UBIA gets you nothing above the threshold.

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Common Mistakes to Avoid

Mistake #1: Filing Form 8995 When You Should File Form 8995-A

Problem: Taxable income before QBI exceeds the threshold (e.g., $260,000 single in 2025, above the $241,950 cutoff), but the filer uses the simplified Form 8995 because their software defaults to it.

Impact: The simplified form ignores the W-2/UBIA limit and the SSTB phase-in. Above the threshold, that's almost always wrong — the IRS receives the K-1 / Schedule C data and computes its own §199A and sends a CP2000 notice with the corrected (lower) deduction plus interest.

Solution: Run the threshold check first. If taxable income before QBI > $241,950 single / $483,900 MFJ for 2025, you MUST use Form 8995-A.

Mistake #2: Treating S-Corp Owner W-2 as Both QBI and W-2 Wages

Problem: The S-corp pays the owner $150,000 as reasonable compensation. The owner reports the $150,000 as wages on Form 1040 Line 1 (correct) AND includes the $150,000 in QBI on Form 8995-A Line 2 (wrong).

Impact: Inflated QBI; potential audit and penalty. Per Treas. Reg. §1.199A-3(b)(2)(ii)(H), reasonable compensation paid by an S-corp to a shareholder is NOT QBI.

Solution: Subtract owner's W-2 reasonable comp from K-1 box 1 amount before computing QBI. The W-2 wages remain in the W-2 wage total for the W-2/UBIA limit.

Mistake #3: Forgetting the SE-Tax / SE-HI / SE-Retirement Adjustments to QBI

Problem: Sole proprietor enters Schedule C Line 31 net profit as QBI without subtracting the deductible portion of SE tax, self-employed health insurance, and SEP-IRA / Solo 401(k) contributions allocable to that business.

Impact: Inflated QBI by 5-15%. The IRS regulation (Treas. Reg. §1.199A-3(b)(1)(vi)) is explicit that these reductions apply.

Solution: Compute QBI = Schedule C profit − ½ SE tax − SE health insurance − retirement contributions, all allocable to the same business.

Mistake #4: Counting Land or Non-Depreciable Property in UBIA

Problem: Real estate investor includes the cost of land in UBIA when applying the 2.5% UBIA limit.

Impact: Inflated UBIA, inflated W-2/UBIA limit, overstated deduction. Land doesn't count because it's not depreciable.

Solution: UBIA includes only depreciable tangible property (buildings yes, land no; equipment yes, intangibles no) within its depreciable period — defined as the longer of 10 years or the MACRS recovery period from when the property was first placed in service.

Mistake #5: Skipping the Net-Capital-Gains Cap (Line 36)

Problem: Filer with $400,000 taxable income and $300,000 of long-term capital gains computes 20% × $400,000 = $80,000 and claims that as the QBI cap. They should compute 20% × ($400,000 − $300,000) = $20,000.

Impact: Overstated deduction by $60,000. The §199A deduction can't reduce income already taxed at preferential capital-gains rates.

Solution: Always subtract net capital gains (LTCG + qualified dividends) on Line 34 before applying the 20% cap.

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How Jupid AI Helps with Form 8995-A

Form 8995-A is exactly the kind of computation where small mistakes compound: get QBI wrong by $5,000, miss the SSTB flag, forget the SE-tax adjustment, and the deduction shifts by $10,000+. The math depends on cleanly built numbers from Schedule C, Schedule SE, and the K-1 — which is where most of the error actually creeps in.

What makes Jupid different:

✅ Automatic transaction categorization — Connect your bank accounts and we sort every transaction into the right Schedule C line with 95.9% accuracy. Schedule C Line 31 (the input to QBI) is computed continuously through the year, not reverse-engineered in April.

✅ WhatsApp/iMessage AI accountant — Ask "Am I above the QBI threshold?" or "Is my consulting business an SSTB?" and get a sourced answer based on your YTD numbers. No app to open.

✅ Real-time AGI and taxable-income tracking — See where you sit relative to the §199A threshold and phase-in window all year, not just at filing. That matters for SEP-IRA contribution sizing, year-end W-2 bonus decisions, and reasonable-comp planning for S-corp owners.

✅ Documentation kept automatically — UBIA support, W-2 wage reconciliation, and the SE-tax / SE-HI / SE-retirement allocations stay tied to the underlying transactions. When the IRS asks for substantiation, the records exist.

Example conversation:

• You: "I'm a consultant making $290,000. Do I get the QBI deduction?"
• Jupid: "Consulting is an SSTB. At $290,000 single taxable income, you're in the phase-in zone (top is $291,950 for 2025). Your applicable percentage is about 3.9% — so your QBI deduction is roughly 3.9% × 20% × QBI. You'll want Form 8995-A Schedule A. Want me to draft it?"

Try Jupid →

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Action Checklist: Filing Form 8995-A

Throughout the year:

• Track Schedule C profit / S-corp K-1 income in real time
• Track W-2 wages paid by each business (for the wage limit)
• Maintain UBIA records — purchase date, original basis, recovery period for each depreciable asset
• Categorize each business as SSTB or not (and document why)
• Watch taxable income relative to the §199A threshold

Before filing:

• Compute taxable income BEFORE the QBI deduction
• Compare to threshold ($241,950 single / $483,900 MFJ for 2025)
• If under threshold AND no SSTB issues → file Form 8995 (short form), not 8995-A
• If above threshold OR SSTB in phase-in → file Form 8995-A
• Reduce Schedule C profit by ½ SE tax + SE health insurance + SE retirement contributions to get QBI
• For S-corp owners: subtract reasonable comp from K-1 box 1 before computing QBI

While filling out the form:

• Identify each trade or business (Part I)
• Decide whether to aggregate (Schedule B) — usually only worth it if W-2/UBIA limit binds
• Complete Schedule A only for SSTBs in the phase-in zone
• Compute W-2/UBIA limit per business (Part II Lines 5-10)
• Net any QBI losses across positive-QBI businesses (Schedule C of Form 8995-A)
• Apply overall taxable-income cap (Part IV Lines 33-37)
• Carry Line 39 to Form 1040 Line 13

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Resources and Citations

IRS Forms and Instructions

• Form 8995-A — Qualified Business Income Deduction
• Form 8995-A Instructions — Line-by-line guidance with Schedule A through D
• Form 8995 — Simplified version (below threshold, no SSTB phase-in)
• About Form 8995-A — IRS landing page with archive of past revisions
• Form 1040 — Where the QBI deduction lands (Line 13)
• Schedule C — Source of QBI for sole proprietors

IRS Publications

• Publication 535 — Business Expenses (also covers QBI background)
• Tax Topic 651 — Qualified Business Income Deduction — IRS plain-language overview
• FAQs on §199A — IRS Q&A on common QBI issues

Tax Code & Regulations

• IRC §199A — Qualified Business Income Deduction (the statute)
• IRC §199A(d)(2) — Definition of SSTB
• IRC §199A(b)(2) — W-2 wage / UBIA limitations
• Treas. Reg. §1.199A-1 — Operational rules
• Treas. Reg. §1.199A-2 — W-2 wages and UBIA computation
• Treas. Reg. §1.199A-3 — QBI definition and adjustments
• Treas. Reg. §1.199A-4 — Aggregation rules
• Treas. Reg. §1.199A-5 — SSTB definition and rules
• Treas. Reg. §1.199A-6 — Special rules for cooperatives

Inflation-Adjusted Numbers

• Rev. Proc. 2024-40 — 2025 §199A thresholds ($241,950 / $483,900) and phase-in widths ($50,000 / $100,000)
• One Big Beautiful Bill Act of 2025 — Made §199A permanent (was scheduled to sunset 12/31/2025 under TCJA)

Companion Guides

• Schedule C Instructions Guide 2026 — Sole proprietor profit feeding QBI
• Form 1040 Guide 2026 — Where Form 8995-A Line 39 lands

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Final Thoughts

Form 8995-A is the part of the §199A regime that decides whether the QBI deduction is a flat 20% gift or a heavily-conditioned subsidy. Three patterns produce most of the wins (and most of the losses):

1. Know the threshold and watch it all year. The difference between filing Form 8995 (short, easy) and Form 8995-A (long, conditional) is one number — taxable income before QBI. Track it.
2. For SSTB owners in the phase-in zone, your applicable percentage is binary leverage. Every dollar of additional taxable income through the $50K (single) / $100K (MFJ) window costs you 0.4% / 0.2% of your SSTB QBI deduction. Year-end retirement contributions, charitable bunching, and HSA contributions all matter.
3. For non-SSTB owners above the threshold, W-2 wages are your friend. S-corp reasonable comp counts. Hiring W-2 staff (vs. 1099 contractors) counts. Capital-intensive businesses use UBIA instead. Plan the ratio.

If your 1040 Line 13 number is suspicious — too round, suspiciously high, or just guessed by software — that's the line worth a careful re-walk. Form 8995-A rewards arithmetic carefulness more than almost any other piece of the individual return.

Use This with Your AI Agent

If you're using Claude, ChatGPT, or another AI agent to help fill out Form 8995-A, we've published an open-source skill that gives the agent exact line-by-line instructions, validation checks, ask-don't-guess prompts, and worked examples — the same logic Jupid uses internally.

→ jupid-tax/jupid-skills on GitHub — forms/form-8995-a/SKILL.md

For Claude Code: cp -r jupid-skills/forms/form-8995-a ~/.claude/skills/. For the Anthropic SDK, load SKILL.md into the system prompt and the references/ files on demand. For browser-automation runtimes, filing.md covers the e-file or paper-file workflow.

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Disclaimer

This article provides general information about tax filing and should not be considered tax advice. The §199A QBI deduction has nuanced rules that depend on facts and circumstances; SSTB classification in particular has been the subject of multiple regulatory clarifications and PLRs. Tax laws change frequently, and individual circumstances vary significantly. The 2026 figures shown are projections subject to IRS confirmation in late 2025. For advice specific to your situation, consult with a qualified tax professional.

Tax Year: 2026 (forms covering tax year 2025 income, filed by April 15, 2026) Last Updated: April 28, 2026