The Qualified Business Income (QBI) deduction, also known as the Section 199A deduction, has been a cornerstone of tax savings for small business owners and self-employed individuals since its introduction by the Tax Cuts and Jobs Act (TCJA) of 2017. Initially set to expire after December 31, 2025, the QBI deduction has now been made permanent under the new tax bill passed in July 2025. This change ensures that taxpayers can continue to benefit from this deduction indefinitely, with some additional updates introduced in the legislation.
In this article, we will explore the QBI deduction in detail, including its components, eligibility requirements, limitations, key updates, and examples of how it applies in the 2025 tax year.
What is the QBI Deduction?
The QBI deduction allows eligible taxpayers to deduct:
- Up to 20% of their Qualified Business Income (QBI) from a domestic business operated as a sole proprietorship, partnership, S corporation, trust, or estate.
- Up to 20% of qualified Real Estate Investment Trust (REIT) dividends and qualified Publicly Traded Partnership (PTP) income.
The deduction is calculated as the lesser of:
- 20% of QBI plus 20% of qualified REIT dividends and PTP income, or
- 20% of the taxpayer’s taxable income (calculated before the QBI deduction) minus net capital gains.
Income earned through a C corporation or as an employee is not eligible for the QBI deduction.
Key Updates
The new tax bill not only made the QBI deduction permanent but also introduced several updates to enhance its accessibility and applicability. Here are the key changes:
1. Permanent Deduction: The QBI deduction is now a permanent feature of the tax code, ensuring that eligible taxpayers can continue to claim it beyond 2025 without concern for expiration.
2. Increased Thresholds for W-2 Wage and UBIA Limitations: The taxable income thresholds for applying the W-2 wage and unadjusted basis immediately after acquisition (UBIA) limitations have been increased and will now be adjusted annually for inflation. For the 2025 tax year, the thresholds are $400,000 for married filing jointly, and $200,000 for all other filing statuses.
3. Expanded Eligibility for Specified Service Trades or Businesses (SSTBs): The phase-out rules for SSTBs have been relaxed. Taxpayers with taxable income up to $500,000 (married filing jointly) or $250,000 (all other filing statuses) can now claim the full deduction, even if their income is derived from an SSTB.
4. Simplified Aggregation Rules: The new bill simplifies the rules for aggregating multiple trades or businesses for purposes of calculating the QBI deduction. Taxpayers can now aggregate businesses more easily, provided they meet basic criteria such as common ownership and operational interdependence.
5. Enhanced Deduction for Agricultural and Horticultural Cooperatives: Patrons of agricultural and horticultural cooperatives can now claim an enhanced QBI deduction, with a higher percentage of cooperative income qualifying for the deduction.
Eligibility Requirements for the QBI Deduction
To claim the QBI deduction in 2025 and beyond, taxpayers must meet the following criteria:
1. Qualified Business Income (QBI)
QBI includes the net amount of qualified items of income, gain, deduction, and loss from a qualified trade or business conducted within the United States. It excludes:
- Income earned as an employee
- Guaranteed payments to partners
- Investment income such as capital gains, dividends, and interest (unless earned in the ordinary course of a trade or business)
2. Eligible Taxpayers
The deduction is available to:
- Individuals
- Trusts
- Estates
3. Taxable Income Thresholds
For 2025, the taxable income thresholds (before the QBI deduction) are:
- $400,000 for married filing jointly
- $200,000 for all other filing statuses
If taxable income exceeds these thresholds, additional limitations and phase-outs apply, particularly for SSTBs.
How the QBI Deduction Applies to Different Types of Businesses
The QBI deduction applies differently depending on the type of business and the taxpayer’s taxable income. Below is a breakdown:
1. Sole Proprietorships: Sole proprietors report their business income on Schedule C of Form 1040. The QBI deduction is calculated based on the net profit from the business, subject to limitations.
2. Partnerships and S Corporations: Partners and S corporation shareholders receive their share of QBI, W-2 wages, and the unadjusted basis immediately after acquisition (UBIA) of qualified property on Schedule K-1. They use this information to calculate their individual QBI deduction.
3. Trusts and Estates: Trusts and estates with QBI can also claim the deduction, provided they meet the eligibility requirements.
4. Specified Service Trades or Businesses (SSTBs): SSTBs include fields such as health, law, accounting, consulting, and financial services. Under the new rules, more taxpayers with SSTB income can qualify for the deduction due to the relaxed phase-out thresholds.
Limitations and Phase-Outs
The QBI deduction is subject to several limitations:
1. W-2 Wage and UBIA Limitations
For taxpayers with taxable income above the threshold, the 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 UBIA of qualified property.
2. Specified Service Trades or Businesses (SSTBs)
For SSTBs, the deduction phases out once taxable income exceeds the threshold. Under the new rules, the phase-out ranges are:
- $400,000 to $500,000 for married filing jointly
- $200,000 to $250,000 for all other filing statuses
3. Overall Taxable Income Limitation
The total QBI deduction cannot exceed 20% of the taxpayer’s taxable income (before the QBI deduction) minus net capital gains.
Key Takeaways
- Permanent Tax Savings: The QBI deduction is now a permanent feature of the tax code, providing long-term benefits for eligible taxpayers.
- Enhanced Accessibility: The 2025 updates make the deduction more accessible, particularly for SSTBs and taxpayers with higher incomes.
- Plan Strategically: Taxpayers should work with a tax professional to maximize their QBI deduction, especially if they are near the income thresholds or have multiple businesses.
The QBI deduction remains a powerful tool for reducing taxable income, and the new updates ensure that it will continue to benefit taxpayers for years to come.
