What is the qualified business income (QBI) deduction?

The qualified business income (QBI) deduction is a tax benefit that allows pass-through business owners to deduct up to 20% of their qualified business income. Introduced by the Tax Cuts and Jobs Act (TCJA) of 2017, this provision also extends to 20% of qualified real estate investment trust (REIT) dividends and publicly traded partnership (PTP) income.

What is the QBI deduction under Section 199A?

The QBI deduction, also known as the QBID or Section 199A deduction, is a tax write-off that lets eligible business owners reduce their personal taxable income by up to 20% of their qualified business income.

The qualified business income deduction was introduced in the Tax Cuts and Jobs Act (TCJA) of 2017 and was originally scheduled to expire at the end of 2025. However, the One Big Beautiful Bill Act, passed in July 2025, made the QBI deduction permanent as of 2026.

The primary goal of this deduction is to support small business growth by reducing the tax burden on business owners. By allowing you to keep more of your earnings, the deduction frees up capital you can reinvest back into your operations, whether that's hiring new employees, purchasing equipment, or expanding your services.

Who qualifies for the qualified business income deduction?

Eligibility for the QBI deduction is limited to pass-through entities and self-employed individuals. A pass-through entity is a business structure where profits and losses flow through to the owner's personal tax return rather than being taxed at the business level. C corporations are not eligible.

If you own a qualifying pass-through entity, you can potentially deduct up to 20% of your qualified business income, directly reducing the amount of income subject to federal taxes. The deduction is also available if you earn qualified REIT dividends or publicly traded partnership income.

Sole proprietors and single-member LLCs

If you're a sole proprietor or single-member LLC, you report your business income on Schedule C and claim the QBI deduction directly on your personal return (Form 1040). Since there's no separate business-level tax return, the calculation flows straight from your net business income to your deduction.

Partnerships and multi-member LLCs

Partnerships and multi-member LLCs pass QBI through to each partner via Schedule K-1. Each partner then claims their share of the deduction on their individual tax return. The partnership itself doesn't take the deduction. It's calculated at the partner level based on each partner's allocated share of income.

S corporations

S corporation shareholders receive their QBI allocation through Schedule K-1, similar to partnerships, but there's one important distinction. Wages you pay yourself as an S corp shareholder-employee are W-2 income, not QBI. Only the remaining business income that passes through to you qualifies for the deduction.

Trusts and estates

Certain trusts and estates may also qualify for the QBI deduction. Income passed through to beneficiaries is taxed at the beneficiary level, and the deduction applies to the beneficiary's share of qualified business income from the trust or estate.

What counts as qualified business income?

Qualified business income is the net amount of ordinary income, gain, deduction, and loss from a qualified trade or business operated within the United States. Distinguishing between qualifying and non-qualifying income helps you complete an accurate tax return and avoid penalties.

Ordinary business income and deductions

Ordinary business income includes your taxable net income from domestic businesses operated as one of the qualifying entity types listed above. This covers revenue from selling goods or services minus your allowable business deductions such as rent, supplies, and marketing costs.

Self-employment income

Self-employment income from a trade or business qualifies for the QBI deduction. If you're a freelancer, independent contractor, or gig worker filing Schedule C, your net earnings from self-employment count as QBI (though the deduction itself doesn't reduce your self-employment tax).

Rental income

Rental income may qualify if the rental activity rises to the level of a trade or business under IRC Section 162, which allows deductions for ordinary and necessary expenses incurred in operating a business. The IRS also offers a safe harbor for certain rental real estate enterprises.

REIT dividends and PTP income

Qualified REIT dividends and publicly traded partnership income receive their own 20% deduction calculation, separate from your other business income. This applies mainly to sectors such as energy, finance, and real estate.

Treatment of guaranteed payments

Guaranteed payments to partners are generally not QBI. These are payments made to partners regardless of the partnership's income, similar to a salary. If you receive guaranteed payments, you'll need to exclude them from your QBI calculation.

What income does not qualify for the QBI deduction?

Several categories of income are explicitly excluded from the QBI deduction, even if they're connected to your business activities.

Capital gains and losses

Gains or losses from the sale or exchange of capital assets, including stocks, bonds, real estate investments, and other appreciated property, don't count as QBI.

Interest and dividend income

Investment income such as dividends, interest, annuities, and royalties not derived in the ordinary course of a trade or business is excluded. These are considered portfolio-type returns, not business income.

W-2 wages and reasonable compensation

Compensation you receive as an employee doesn't qualify. This includes W-2 wages, tips, bonuses, and other forms of employee compensation. For S corporation shareholder-employees, the reasonable compensation you pay yourself is W-2 income and must be excluded from your QBI.

Foreign-sourced business income

Only domestic business income qualifies for the QBI deduction. If you earn income from business activities conducted outside the United States, that income is excluded from your QBI calculation.

What is a specified service trade or business (SSTB)?

A specified service trade or business (SSTB) is a category of business defined under IRC Section 199A(d)(2) that faces additional restrictions on the QBI deduction at higher income levels.

List of SSTB professions

Under the tax code, an SSTB is a trade or business that provides services in any of the following fields:

• Health
• Law
• Accounting
• Actuarial science
• Performing arts
• Consulting
• Athletics
• Financial services
• Brokerage services
• Investing and investment management, trading, or dealing in securities, partnership interests, or commodities

SSTBs also include any business where the principal asset is the reputation or skill of one or more owners or employees.

How SSTB classification affects your deduction

While SSTBs are eligible for the QBI deduction, they face a complete phase-out once your taxable income exceeds the upper income threshold. Non-SSTB businesses, by contrast, remain eligible at higher income levels. They're just subject to the wage and property limitations. This distinction makes SSTB classification one of the most important factors in determining your deduction at higher income levels.

QBI deduction phase-out thresholds and income limits

Your taxable income determines whether you can claim the full 20% deduction, a reduced amount, or no deduction at all. These are the thresholds for tax year 2026. Starting in 2026, they'll be adjusted annually for inflation.

Income thresholds for single and joint filers

If your taxable income falls below $201,750 (single) or $403,500 (married filing jointly) for tax year 2026, you can generally claim the full 20% QBI deduction without additional limitations. No wage or property tests apply at these income levels.

How the phase-out range works

The phase-out creates a sliding scale effect. As your income rises through the phase-out range, the deduction gradually decreases. If you're halfway through the range, you'll get roughly half the benefit. For SSTB owners, the deduction phases out entirely at the upper threshold. For non-SSTB owners, the wage and property limitations fully apply above the upper threshold.

W-2 wage and property basis limitations

Once your income exceeds the phase-out thresholds, your QBI deduction is limited to the greater of:

• 50% of W-2 wages paid by the business, or
• 25% of W-2 wages plus 2.5% of the unadjusted basis immediately after acquisition (UBIA) of qualified property

Qualified property includes tangible assets used in the business that haven't been fully depreciated, such as equipment, buildings, and machinery. These limitations tie the deduction to the tangible contributions your business makes through employment and capital investment.

How to calculate your QBI deduction

The QBI deduction can be one of the most valuable tax breaks for business owners, but calculating it requires working through several steps and limitations.

1. Determine your qualified business income

Start by calculating your net income from each eligible business you own. For sole proprietors, determine your business income and expenses on Schedule C, then calculate your adjusted gross income on Form 1040. For partnerships and S corporations, use the QBI amounts reported on your Schedule K-1.

2. Apply the 20% deduction

Multiply your QBI by 20% to get your tentative deduction amount. For example, if your QBI is $150,000:

$150,000 * 20% = $30,000

If your taxable income stays below the phase-out thresholds, this is typically your deduction with no additional calculations needed.

3. Calculate any wage or property limitations

When your taxable income exceeds the phase-out thresholds, apply the wage and property test. Your deduction is limited to the greater of:

• 50% of W-2 wages paid by the business, or
• 25% of W-2 wages plus 2.5% of UBIA of qualified property

Here's a quick example. Say your business generates $100,000 in QBI and pays $80,000 in W-2 wages. Your business also owns equipment with a UBIA of $200,000. Your tentative 20% QBI deduction would be $20,000.

Under the wage and property test:

• Option 1: 50% of $80,000 = $40,000
• Option 2: 2 5% of $80,000 + 2.5% of $200,000 = $20,000 + $5,000 = $25,000

Since $40,000 is greater, that becomes your limitation. Your $20,000 tentative deduction stays intact because it's less than the $40,000 limit.

4. Apply the taxable income cap

Your final deduction can't exceed 20% of your taxable income minus net capital gains. This overall cap prevents the deduction from eliminating too much of your tax liability. Compare your tentative deduction (after any wage/property limitations) to this cap, and take the lesser amount.

QBI losses and carryforward rules

If your business generates a net loss instead of a profit, the QBI deduction works differently.

How QBI losses reduce future deductions

When your qualified business has a loss for the year, you can't claim a QBI deduction for that business. Instead, the loss becomes a qualified business loss (QBL) that carries forward to reduce your QBI in future tax years. The carryforward loss reduces your positive QBI before you apply the 20% rate, which can significantly lower your deduction in the following year.

How long QBI losses carry forward

QBI losses carry forward indefinitely until they're fully used up. There's no time limit on when you need to apply them. Each year, you'll reduce your current QBI by any remaining carryforward losses before calculating your deduction.

If you own multiple businesses, losses from one business reduce your total QBI from all businesses before applying any limitations. This makes careful planning across all your business activities important for maximizing the benefit.

How to claim the QBID on your tax return

Claiming the QBI deduction requires filing the correct IRS form alongside your individual tax return.

When to use Form 8995

Form 8995 is the simplified version for taxpayers whose taxable income falls below the phase-out thresholds ($201,750 single, $403,500 married filing jointly for 2026). If you have straightforward QBI from one or more businesses and no SSTB complications, this is the form you'll use. It's a single page and walks you through the basic 20% calculation.

When to use Form 8995-A

Form 8995-A is the detailed version required when your income exceeds the phase-out thresholds, you own an SSTB, or you need to apply the wage and property limitations. This form includes additional schedules for calculating phase-out amounts, aggregating businesses, and handling carryforward losses.

Reporting QBI from multiple businesses

If you own multiple businesses, you'll calculate QBI separately for each one. However, you can aggregate certain businesses on your tax return if they meet specific IRS requirements, such as being commonly controlled and providing products or services that are the same or customarily offered together.

QBI aggregation can work in your favor by combining a high-wage business with a low-wage business, potentially increasing your overall deduction. You must make this election and apply it consistently in future years.

Examples of QBI calculations

These examples show how the QBI deduction affects business owners' taxable income, with scenarios for incomes both below and above the applicable thresholds.

Example of income below the threshold

This example demonstrates the simplicity of the QBI deduction when the taxpayer's income is below the specified thresholds with no additional limitations.

Here's how to calculate the QBI deduction for Jane, a single-filing taxpayer:

1. Determine the qualified business income

After allowable deductions, Jane's taxable income is $80,000.

2. Apply the 20% deduction rate

20% of $80,000 = $16,000

3. Identify applicable thresholds

A single-filing taxpayer in 2026 has a taxable income threshold of $201,750, with a phase-out range up to $276,750.

Since Jane's taxable income is $80,000, it falls well below the income threshold and does not require any further tests. She can deduct $16,000 from her taxable income.

Example of income above the threshold

When taxable income exceeds the threshold, the calculation becomes more complex due to the wage and property test. This example explains how these limitations impact the deduction.

Here's how to calculate the QBI deduction for John, a joint-filing taxpayer:

1. Determine the qualified business income

QBI includes the net income after deductions. In this case, it's $500,000.

2. Apply the 20% deduction rate

20% of $500,000 = $100,000

3. Identify applicable thresholds

A married filing jointly taxpayer in 2026 has a taxable income threshold of $403,500, with a phase-out range up to $553,500. Since John's taxable income is $500,000, it falls within this range, so he'd have to apply additional limitations.

4. Apply the wage and property test

This limitation is the greater of 50% of W-2 wages paid by the business, or 25% of W-2 wages plus 2.5% of the unadjusted basis immediately after acquisition (UBIA) of qualified property. So, if John's W-2 wages are $150,000 and his UBIA is $0:

• 50% of W-2 wages: 50% * $150,000 = $75,000
• 25% of W-2 wages plus 2.5% of UBIA: 25% * $150,000 = $37,500

$75,000 is the greater amount, reflecting the wage and property test's emphasis on tying the deduction to tangible contributions such as wages paid and investments.

5. Determine the QBI deduction

The QBI deduction is the lesser of:

• 20% of QBI ($100,000), or
• The wage and property limitation ($75,000)

Therefore, in this scenario, John's QBI deduction is limited to $75,000.

These two examples illustrate how income thresholds and limitations influence the final deduction amount. While Jane's case is straightforward, John's demonstrates how higher income levels require applying the wage and property test, which reduces the allowable deduction.

For more complex cases, such as SSTBs with multiple income streams and phase-out thresholds, it helps to consult IRS guidelines, use tax planning tools, or talk to a tax professional to ensure accurate calculations and compliance.

Common reasons you may not get a QBI deduction

If you expected a QBI deduction but didn't receive one (or received less than anticipated), several common issues could be the cause:

• You operate as a C corporation: C corporations pay corporate income tax and don't pass income through to owners, so they're not eligible for the pass-through deduction
• Your income exceeds the phase-out thresholds and you're in an SSTB: If your taxable income is above $276,750 (single) or $553,500 (married filing jointly), SSTB owners are completely ineligible for the deduction
• You have a QBI loss carryforward reducing your current deduction: Prior-year losses carry forward and reduce your current QBI before the 20% rate applies, which can shrink or eliminate your deduction
• Your taxable income is zero or negative: The QBI deduction can't create or increase a net loss. If your overall taxable income is negative, there's no deduction to claim.
• Reasonable compensation is reducing your QBI: For S corporation owners, the wages you pay yourself are W-2 income, not QBI. If your reasonable compensation is high relative to total business income, your remaining QBI, and your deduction, will be smaller.
• Your deduction hit the taxable income cap: The QBI deduction can't exceed 20% of your taxable income minus net capital gains, which may limit your deduction below the expected 20% of QBI

Future of the qualified business income tax deduction

The QBI deduction is now permanent. While it was originally set to expire at the end of 2025, the One Big Beautiful Bill Act, signed into law on July 4, 2025, eliminated the sunset date. Starting in 2026, the deduction's income thresholds will adjust annually for inflation.

The legislation also introduced a minimum deduction provision beginning in 2026, which provides a baseline deduction amount for qualifying taxpayers with sufficient QBI. The minimum deduction is $400 for active business owners who have at least $1,000 of QBI for the year from a qualified trade.

This provision is designed to ensure that more small business owners benefit from the deduction regardless of how the wage and property limitations apply to their situation.

Maximize your QBI deduction with automated expense tracking and categorization

Qualifying for the QBI deduction requires meticulous expense tracking and proper categorization. But manual processes make it easy to miss deductible expenses or misclassify transactions that could reduce your qualified business income. Ramp's accounting automation software ensures every expense is captured, coded correctly, and categorized in real time so you can maximize your deduction without the manual work.

Ramp's AI learns your accounting patterns and automatically codes transactions across all required fields as they post. You'll see a 67% increase in zero-touch codings compared to rules-only automation, which means more expenses are classified correctly without human intervention. This precision matters for QBI calculations: properly categorized expenses reduce your taxable income and increase your deduction eligibility.

Here's how Ramp helps you capture every deductible dollar:

• Real-time expense capture: Ramp automatically collects receipts and matches them to transactions, eliminating the risk of lost documentation that could disqualify legitimate deductions
• Accurate categorization: AI codes expenses to the correct GL accounts and dimensions, ensuring business expenses are properly separated from non-deductible items
• Audit-ready records: Every transaction includes complete documentation, approval history, and proper coding so you can substantiate deductions during tax prep or an audit

Try a demo to see how Ramp helps businesses track expenses with the accuracy needed to maximize tax deductions.