Optimizing the Qualified Business Income (QBI) Deduction as an S-Corporation Owner
Updated September 5, 2026.
The qualified business income deduction may reduce taxable income for an eligible S corporation shareholder. Its value depends on the type of business, the shareholder’s taxable income and the applicable limits. It is not a reason to set the owner’s salary at a fixed percentage of profit.
Apply the rules for the actual tax year
Section 199A generally allows a deduction of up to 20% of qualified business income, subject to limitations. Wages paid to an S corporation shareholder are not QBI. A separate overall limit generally refers to taxable income less net capital gain.
For 2026, the phase-in range for the wage/property limitations and specified service business restrictions begins at taxable income of $403,500 for married couples filing jointly and ends at $553,500. For single filers, it runs from $201,750 to $276,750. These are taxable-income thresholds, not business revenue. Other filing statuses have their own applicable thresholds.
Reasonable compensation comes first
An S corporation must pay reasonable compensation for services before making non-wage distributions to a shareholder-employee. The owner’s duties, time, experience and comparable pay matter. A blanket salary target of 28.6% of profit does not establish reasonable compensation or the best tax outcome.
Increasing wages can reduce QBI while affecting the wage limitation, payroll taxes and retirement-plan contributions. Wages paid to other employees and qualified property can also change the calculation. For a specified service trade or business, income limits can restrict or eliminate the deduction regardless of the owner’s preferred salary.
Model the whole return
Have the CPA compare the deduction with compensation requirements, household taxable income, business classification and other relevant limits. Revisit the calculation when the company’s profits or the owner’s circumstances change. The useful decision is the result on the complete return, after the applicable rules have been applied.
Sources for this update: IRS 2026 inflation adjustments; IRS S corporation compensation.
Ascent Wealth Strategies provides strategies for financial/estate and/or tax planning. These strategies do not constitute tax or legal advise. Consult legal or tax professionals for specific information regarding your individual situation.
Clear Creek Financial Management, LLC dba Ascent Wealth Strategies is a Registered Investment Advisor. This case study is solely for informational purposes. Advisory services are only offered to clients or prospective clients where Clear Creek Financial Management, LLC and its representatives are properly licensed or exempt from licensure. Past performance is no guarantee of future returns. Investing involves risk and possible loss of principal capital. No advice may be rendered by Clear Creek Financial Management, LLC unless a service agreement is in place.
