The QBI Deduction Explained (Section 199A) for Business Owners

The Qualified Business Income (QBI) deduction lets many owners of pass-through businesses deduct up to 20% of their qualified business income, a significant break that lowers taxable income before you even calculate what you owe. It comes from Internal Revenue Code Section 199A, and if you run an LLC, S-Corp, partnership, or sole proprietorship, it may already apply to you.

What "qualified business income" means

QBI is generally the net income from a qualified trade or business operated in the U.S. It does not include:

• W-2 wages you pay yourself as an S-Corp owner
• Capital gains or losses
• Interest and dividend income not tied to the business
• Income earned outside the United States

Because your S-Corp salary is not QBI, how you split salary versus distributions directly changes how large your deduction is, which is one reason entity and compensation planning matter so much.

Who qualifies

At lower and middle income levels, most pass-through business owners can claim the full 20% with few restrictions. As taxable income rises above the IRS thresholds (which are adjusted annually), two limitations phase in:

• The W-2 wage / property limit caps the deduction based on the wages your business pays and the value of qualified property it owns.
• The SSTB limit phases out the deduction for "specified service trades or businesses", fields like law, accounting, consulting, health, and financial services, once income exceeds the threshold.

Because these thresholds and rules are adjusted by the IRS and by recent tax legislation, it is worth confirming your eligibility and the current limits each year rather than assuming.

Why it interacts with everything else

The QBI deduction does not sit in a vacuum. Your entity type, your reasonable salary, your retirement contributions, and even your Augusta Rule payments all move your taxable income, and therefore your QBI deduction, up or down. Optimizing one number in isolation can quietly shrink another. That is why we model them together in a single tax planning engagement instead of one deduction at a time.

A simple example

Suppose your S-Corp produces $200,000 in profit and you take a reasonable salary of $80,000. The remaining $120,000 of qualified business income could support a QBI deduction of up to $24,000 (20%), subject to the income and wage limits above. Set the salary too high and you shrink the QBI base; too low and you invite an audit. The balance is the strategy.

Get it right, every year

The QBI deduction is one of the most valuable, and most misunderstood, breaks available to business owners. See how it fits alongside the other moves in our guide to how business owners reduce taxes.

If you want your salary, entity, and QBI deduction coordinated so you keep the maximum, book a free 15-minute strategy call. We work with business owners across Coppell, Dallas, Plano, and all of DFW.