How the QBI Deduction’s Permanent 20% Rate and New $400 Minimum Work in 2026

When the Tax Cuts and Jobs Act passed in 2017, it introduced the Qualified Business Income deduction—a 20% reduction on pass-through business income that was always supposed to expire after 2025. This temporary status created uncertainty for small business owners, who didn’t know whether to plan for the deduction’s return. In July 2025, Congress made it permanent with the One Big Beautiful Bill Act. Starting with the 2026 tax year, business owners no longer need to worry that this deduction will vanish.

The QBI deduction is now a stable, long-term benefit for owners of sole proprietorships, partnerships, S corporations, and most limited liability companies. For small and mid-sized business owners, understanding how to claim it—and what triggers limitations on it—can save thousands in taxes each year. The 2026 tax year brings higher income thresholds and a new $400 minimum deduction that expand benefits to more owners. Unlike business expense deductions, which reduce the profit you report from your business, the QBI deduction reduces your taxable income after profit is calculated, offering a second layer of tax relief.

Why permanence matters: from temporary to permanent

For eight years, business owners operated under an expiration date. The 2017 Tax Cuts and Jobs Act created the QBI deduction as a temporary measure set to sunset at the end of 2025. For pass-through business owners, this meant the deduction was valuable but uncertain.

The One Big Beautiful Bill, signed July 4, 2025, permanently extended the QBI deduction. The law specifies that this extension applies to tax years beginning after December 31, 2025, making the 2026 tax year the first to benefit from the permanent status. Permanence eliminates the need for business owners to assume expiration and allows tax planning to build on the assumption that the deduction will remain available. The legislation kept the deduction at 20% rather than raising it to 23%, as some proposals had suggested, but made meaningful changes to how much income owners can claim the deduction on.

2026 income thresholds at a glance
For 2026, single filers get the full 20% QBI deduction on income up to $201,750; married couples filing jointly get it on income up to $403,500. The deduction then phases out: single filers see it disappear entirely at $276,750, while married couples see it completely phased out at $553,500. The $400 minimum deduction guarantees a benefit for owners with at least $1,000 in qualified business income who materially participate.

How the 20% deduction works and who qualifies

The basic calculation is straightforward: if you qualify, you can deduct 20% of your qualified business income (QBI), which is essentially your business profit after expenses. The deduction reduces your personal taxable income, though it cannot exceed the lesser of 20% of your QBI or 20% of your taxable income for the year. This is separate from your business expense deductions; it’s a deduction you claim on your personal tax return after calculating how much you made from the business.

Eligibility depends on business structure. The deduction applies to owners of sole proprietorships, partnerships, S corporations, and most limited liability companies taxed as partnerships or S corporations. Pass-through entities—businesses where income passes through to owners’ personal tax returns—all qualify. Owners of C corporations cannot claim the deduction because C corporations are taxed separately at a flat 21% rate. W-2 employees of any company also cannot claim it; the deduction is only for business owners.

The deduction only applies to income from your active business, not passive investment income or capital gains. If you own rental properties and report them on Schedule E, rental income from those properties generally does not qualify, unless the rental activity rises to the level of a trade or business under a safe harbor or similar test. Dividend income from stocks or mutual funds does not qualify. However, if you own a stake in a partnership, LLC, or S corporation that is actively engaged in business, your share of that entity’s income qualifies for the deduction. To claim the deduction, most taxpayers file Form 8995 with their tax return, though higher-income or more complex situations require Form 8995-A.

The 2026 income thresholds and phase-out structure

For the 2026 tax year, there are two key income levels that determine how much of the deduction you can claim. Below the first threshold, you get the full 20% deduction with no additional limitations—the calculation is simple, and the law does not require you to track employee wages or business property. Above the second threshold, the deduction phases out entirely, and in between, it gradually shrinks based on your W-2 wages and property in the business.

For single filers and heads of household, the full deduction applies if your taxable income is $201,750 or less. For married couples filing jointly, that threshold is $403,500. These amounts represent significant increases from the 2025 levels and reflect inflation adjustments mandated by the law. Below these thresholds, you qualify for the full deduction without worrying about whether you pay yourself or have significant business assets.

The phase-out does not end abruptly. Instead, it begins at $201,750 for single filers and $403,500 for married couples, and the deduction gradually reduces until it phases out entirely at $276,750 for single filers and $553,500 for married couples filing jointly. The width of this phase-out range—the span between where limitations start and where the deduction disappears—is $75,000 for single filers and $150,000 for married couples. This phase-out range is wider in 2026 than in prior years. That wider range means more owners can still claim the deduction even as their income rises above the initial threshold, rather than seeing the deduction eliminated entirely at a lower income level.

The wage and property test for high-income owners

Once your taxable income exceeds the initial threshold, the law imposes a wage and property test to limit the deduction. The limitation requires that your QBI deduction cannot exceed the greater of two calculations: 50% of W-2 wages you paid to employees in your business, or 25% of W-2 wages plus 2.5% of the original cost of qualified business property.

This test sounds technical, but its practical effect is clear. A business owner who pays employees W-2 wages can claim a higher deduction than an owner who pays themselves through business profit distributions. Similarly, an owner who has invested in equipment, real estate, or other business property can claim a higher deduction than one who operates a service business with minimal assets. The test rewards businesses that create W-2 jobs and require capital investment.

For example, consider a manufacturing business with $500,000 in qualified business income where the owner is the only employee (no W-2 wages to others) and owns a small office with $100,000 of depreciable property. Above the income threshold, the wage test would limit the deduction to 50% of $0 (zero), and the property test would limit it to $0 plus 2.5% of $100,000, which equals $2,500. The greater of these two amounts is $2,500, so the deduction would be limited to roughly $2,500 rather than $100,000. This limitation does not apply if the owner stays below the $201,750 (single) or $403,500 (married) thresholds.

The One Big Beautiful Bill expanded the phase-in range—the span over which the wage and property limitations gradually apply—to $75,000 for single filers and $150,000 for married couples. This increase from the prior $50,000 and $100,000 ranges makes the limitations less restrictive for higher-income owners. Instead of the limitations applying fully across a narrow income band, they now apply more gradually across a wider income range, meaning more of the deduction survives the phase-out.

Permanence eliminates the need for business owners to assume expiration and allows tax planning to build on the assumption that the deduction will remain available.

Specified service businesses and additional limits

Owners of certain types of businesses face stricter limitations. Specified service trade or business (SSTB) owners—including accounting firms, law firms, consulting practices, healthcare practices, financial services firms, and similar professions—face complete deduction phase-out above the upper threshold, unlike non-SSTB businesses.

An SSTB owner’s deduction phases out entirely once taxable income exceeds the upper threshold ($276,750 for single filers, $553,500 for married couples). A non-SSTB owner in the same income bracket can still claim a reduced deduction if they have sufficient W-2 wages or property. This disparate treatment reflects Congress’s concern that high-earning professionals might restructure their business to claim the 20% deduction. The limitation effectively requires SSTB owners to stay below the thresholds to claim any QBI deduction.

What qualifies as an SSTB? The law defines it as any trade or business where the principal asset is the reputation or skill of employees or owners, or where the business is performing services (as opposed to selling products or managing property). Accounting, law, consulting, and healthcare clearly qualify. The rules around this distinction matter significantly for higher-income owners in professions.

The new $400 minimum deduction and small business relief

Beginning with the 2026 tax year, the law guarantees a minimum QBI deduction of $400 for any taxpayer with at least $1,000 of qualified business income from a trade or business where they materially participate. Material participation means the owner is actively involved in running the business on a regular, continuous, and substantial basis—not a passive investor who owns a stake but is not involved in operations.

This minimum provision changes the mathematics for very small business owners. A business owner with exactly $1,000 in QBI would normally qualify for a 20% deduction of $200. Instead, the law guarantees them a $400 deduction, which represents a 40% effective deduction rate on their income. For a business owner generating $5,000 in QBI, the normal 20% deduction would be $1,000, but if other limitations reduced this below $400, the minimum deduction kicks in. This floor ensures that the smallest business owners see real tax benefit from the provision.

After 2026, this minimum deduction adjusts annually for inflation in $5 increments. If inflation pushes the minimum from $400 to $405 in a future year, it adjusts. This inflation adjustment ensures that over time, the minimum deduction keeps pace with rising prices and incomes. For a new or struggling business owner, this guaranteed floor may represent the most valuable part of the entire QBI deduction structure. This policy choice reflects a view that even very small business owners should benefit from the deduction.

Maximizing the deduction through expense tracking

The QBI deduction calculation starts with qualified business income, which is your total business revenue minus all business expenses you can deduct. This means that meticulous expense tracking directly increases the deduction available to you. When you deduct a business expense—office supplies, equipment, vehicle costs, meals during business travel—you reduce your business income and thus reduce the amount of income subject to the 20% deduction calculation.

A business owner with $100,000 in gross revenue and $30,000 in deductible expenses has $70,000 in QBI; their 20% deduction is $14,000. That same owner who properly tracks and deducts $40,000 in expenses has $60,000 in QBI and a $12,000 deduction. The second owner has lower qualified business income but lower tax liability because more expenses reduce the income subject to the QBI deduction. The deduction effectively stacks on top of expense deductions, making expense documentation critical. Pass-through business owners should work with a tax professional or accountant to ensure they claim all qualifying business expenses, as these directly increase the QBI deduction available.

Photo: Carol M. Highsmith · Public domain · via Wikimedia Commons