Schedule A of Form 8995-A is the worksheet you use when your business is a specified service trade or business (SSTB) and your taxable income falls inside the phase-in range where the qualified business income deduction shrinks but has not disappeared. It scales your QBI, W-2 wages, and property basis down by an applicable percentage, then feeds those reduced numbers back into Form 8995-A for the final deduction. If your income is below the threshold, you don’t need this schedule at all. If it’s above the ceiling, there’s nothing left to calculate.
When You Actually Need Schedule A
Two things must both be true. Your business has to be an SSTB under Internal Revenue Code Section 199A, and your taxable income before the QBI deduction has to land inside the phase-in range for your filing status.
Below the threshold, ignore the SSTB rules and use the simplified Form 8995 instead. Above the top of the phase-in range, income from an SSTB gets no deduction, so Schedule A produces nothing. The schedule only matters in the middle zone, where a partial deduction is still available.
For 2025, the threshold is $197,300 for single filers and heads of household and $394,600 for married filing jointly.1Internal Revenue Service. Instructions for Form 8995-A For 2026, the thresholds increase to approximately $201,750 and $403,500 based on inflation adjustments. The phase-in range extends $75,000 above the threshold for non-joint filers and $150,000 for joint filers.2Office of the Law Revision Counsel. 26 USC 199A – Qualified Business Income That puts the 2026 upper limits at roughly $276,750 and $553,500.
What Counts as an SSTB
Section 199A names these fields specifically: health, law, accounting, actuarial science, performing arts, consulting, athletics, financial services, and brokerage services. Businesses involving investing, investment management, trading, or dealing in securities or partnership interests also qualify. Engineering and architecture are explicitly carved out, even though they are skill-based professions.1Internal Revenue Service. Instructions for Form 8995-A
One boundary worth knowing: a business with $25 million or less in gross receipts avoids SSTB treatment entirely if less than 10 percent of its gross receipts come from specified service activities. Above $25 million in receipts, the cutoff drops to 5 percent.3eCFR. 26 CFR 1.199A-5 – Specified Service Trades or Businesses and the Trade or Business of Performing Services as an Employee This is a cliff, not a sliding scale. Cross the line and the whole business is treated as an SSTB, not just the service portion.
What to Gather Before You Start
For each SSTB, pull together:
- The business name and TIN exactly as they appear on the entity’s return or your Schedule K-1.4Internal Revenue Service. Schedule A (Form 8995-A) – Specified Service Trades or Businesses
- Qualified business income or loss. Partners and S corporation shareholders take this from Schedule K-1; sole proprietors take it from Schedule C.
- W-2 wages the business paid subject to federal income tax withholding. Guaranteed payments to partners and distributions to S corp shareholders don’t count.1Internal Revenue Service. Instructions for Form 8995-A
- The unadjusted basis immediately after acquisition (UBIA) of qualified property: equipment, furniture, buildings, and vehicles at their original purchase price, not their depreciated value.1Internal Revenue Service. Instructions for Form 8995-A
- Your taxable income before the QBI deduction. You need this to work out the applicable percentage.
If your numbers come from a K-1, verify them against the entity’s own records. K-1 errors are common, and the figures on your return are your responsibility.
Filling In Schedule A
The schedule has two parts. Part I covers SSTBs that are not publicly traded partnerships. Part II covers SSTBs that are PTPs. Most filers use only Part I. Each part gives you one column per business; attach additional copies if you have more SSTBs than columns.
Lines 1 Through 4: Your Raw Numbers
Enter the business name on Line 1a and its TIN on Line 1b. Line 2 takes your QBI or loss for that SSTB. Line 3 takes W-2 wages, and Line 4 takes UBIA of qualified property.4Internal Revenue Service. Schedule A (Form 8995-A) – Specified Service Trades or Businesses These are unadjusted figures. The schedule reduces them next.
Lines 5 Through 8: The Applicable Percentage
The applicable percentage sets how much of your SSTB activity still qualifies. Start at 100 percent, then subtract the ratio of your excess income to the phase-in range.2Office of the Law Revision Counsel. 26 USC 199A – Qualified Business Income
The mechanics: take your taxable income before the QBI deduction and subtract the threshold for your filing status. Divide the result by $75,000 for non-joint filers or $150,000 for joint filers. Subtract that percentage from 100 percent. What’s left is your applicable percentage. Sit at the midpoint of the phase-in range and you land at 50 percent, meaning half your SSTB QBI, wages, and property basis still count.
Lines 9 Through 13: Applying the Percentage
Multiply the applicable percentage by your QBI (Line 2), your W-2 wages (Line 3), and your UBIA (Line 4). The reduced results are what the tax code treats as eligible. Transfer them to the corresponding lines on Form 8995-A, where they combine with any non-SSTB business figures in the broader deduction calculation.
A quick check on your arithmetic: if your applicable percentage is 60 percent and your QBI is $200,000, the adjusted QBI line should read $120,000. If it doesn’t, go back to your taxable income and threshold math before moving on.
If You Have a Loss in Another Business
A net loss in one business reduces the QBI available from your profitable ones. That netting happens on Schedule C of Form 8995-A (Loss Netting and Carryforward), not on Schedule A.5Internal Revenue Service. Schedule C (Form 8995-A) – Loss Netting and Carryforward Schedule C combines losses, compares them against total business income, and allocates the reduction proportionally across your profitable businesses. Anything left over carries forward as a QBI loss to the following year.
Complete Schedule C first if you have both profits and losses. The QBI you enter on Schedule A Line 2 should already reflect that netting.
Each SSTB Stands Alone
Section 199A lets owners of multiple businesses aggregate them, pooling QBI, wages, and property so a wage-heavy business can support the deduction for a wage-light one. SSTBs are excluded from that. You cannot combine an SSTB with a non-SSTB, and you cannot aggregate two SSTBs with each other.2Office of the Law Revision Counsel. 26 USC 199A – Qualified Business Income Own a consulting practice and a manufacturing company? Each gets its own column and its own deduction calculation. The manufacturer’s wages will not help your consulting income.
Where the Numbers Go From Here
Schedule A is an attachment to Form 8995-A, and Form 8995-A is an attachment to your Form 1040. The chain runs Schedule A to Form 8995-A to Form 1040, Line 13. Make sure the business name and TIN match on every form. Mismatches are an easy way to draw an IRS notice.
Most tax software fills in Schedule A automatically once you enter your business income and mark the activity as an SSTB. If you’re filing on paper, place Schedule A behind Form 8995-A in the return packet and mail it to the IRS service center for your state, using the address listed in the Form 1040 instructions.
Records and Penalty Exposure
Keep every worksheet, K-1, payroll record, and property acquisition document that supports your Schedule A math. Income tax records generally need to be held for three years from the filing date, but employment tax records, including the wage data central to this schedule, must be kept at least four years after the tax is due or paid, whichever is later.6Internal Revenue Service. Employment Tax Recordkeeping Holding everything for four years is the safer default.
Mistakes on Schedule A carry sharper consequences than most other worksheet errors. Taxpayers claiming the Section 199A deduction face a lower trigger for the substantial understatement penalty: 5 percent of the tax required to be shown on the return, or $5,000, whichever is greater. That’s half the 10 percent threshold that applies to other taxpayers.7Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty on Underpayments A small math error on the applicable percentage or an overstated QBI figure can put you in penalty territory faster than you might expect. Recheck the percentage arithmetic and reconcile K-1 amounts to the source entity’s records before you file.