by Ayesha
For business owners, closely held partners, and S-corporation shareholders operating within the premier commercial submarkets of Middle Tennessee—including the rapidly growing corporate centers of Franklin, Brentwood, and downtown Nashville—tax efficiency is a core component of business value. Navigating business revenue requires a deep understanding of corporate tax integration.
*Note - Always consult your tax advisor for help specific to your circumstances.
Following major legislative overhauls, the Section 199A Qualified Business Income (QBI) deduction has been made permanent, bringing structural modifications to phase-in ranges and calculations. When integrated with the newest retirement plan updates under the SECURE Act 2.0, closely held businesses have access to a powerful framework to shield operational revenue from top marginal tax brackets.
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1. Advanced Optimization of the Section 199A QBI Deduction
The Section 199A deduction allows eligible non-corporate taxpayers—including sole proprietorships, partnerships, S-corporations, and pass-through LLCs—to deduct up to 20% of their Qualified Business Income (QBI) directly from their federal taxable income.
IRS
Navigating the Thresholds and Wage/Property Limitations
For business owners with taxable income below the statutory baselines, the calculation is direct: a straight 20% deduction on net qualified business profits. However, once taxable income enters the phase-in brackets, the deduction faces strict tests based on W-2 wages paid and the unadjusted basis of qualified business property (UBIA).
The Specified Service Trade or Business (SSTB) Risk
The tax code enforces strict limits on owners of a Specified Service Trade or Business (SSTB)—which includes fields where the principal asset is the reputation or skill of its employees, such as law firms, medical practices, financial consulting groups, and specialized accounting agencies.
- The Phase-Out Cliff: Once an SSTB owner's individual taxable income crosses the threshold, their QBI deduction begins to phase down drastically.
- The Strategic Workaround: To preserve this 20% tax shield, high-earning service professionals must aggressively lower their individual taxable income back below the phase-out thresholds. The most effective method to achieve this reduction is through custom-designed, employer-sponsored retirement plans.
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2. Integrating SECURE Act 2.0 Corporate Retirement Shells
By implementing a qualified workplace retirement plan, a profitable Middle Tennessee business can achieve a dual financial benefit: reducing the owner's individual taxable income to maximize their QBI deduction, while accumulating tax-deferred wealth outside the corporate entity.
Comparing Advanced Retirement Architectures
Choosing the correct corporate retirement plan depends on your business's cash flow consistency, employee headcount, and desired annual contribution velocity.
| Retirement Plan Structure | Maximum Annual Contribution Limits | Business Entity Requirements | Primary Tax Optimization Advantage |
| Solo 401(k) / Individual 401(k) | Up to $68,000 (plus an $8,000 catch-up if age 50+). | Restricted to owner-only businesses or businesses employing only a spouse. | Allows maximum contribution velocity through dual employee deferrals and corporate profit-sharing. |
| SEP IRA (Simplified Employee Pension) | Up to 25% of net adjusted business profit, capped at a maximum of $68,000. | Suitable for solo operations or firms with low employee headcount. | Simple administrative setup with flexible, non-mandatory annual corporate contributions. |
| Safe Harbor 401(k) | $24,500 employee deferral base; up to $72,000 total defined contribution maximum. | Required for firms with employees looking to bypass annual non-discrimination testing. | Automatically satisfies IRS fairness rules via mandatory company contributions, protecting high-earning partners. |
| Defined Benefit / Cash Balance Plan | Actuarially calculated; can exceed $290,000+ annuallybased on age. | Highly profitable firms with stable cash flow and older primary partners. | Creates massive current-year deductions, dropping high-earning service providers back below SSTB limits. |
3. The 2026 High-Earner Roth Catch-Up Mandate
A critical operational change facing profitable business owners is the implementation of the SECURE Act 2.0 Roth Catch-Up Mandate.
OneDigital
- The Rule: If an employee or business owner's prior-year FICA wages (reported in Box 3 of Form W-2) exceeded $150,000, any catch-up contributions made to a 401(k) or 403(b) plan must be made on an after-tax Roth basis.
Employee Fiduciary - The Operational Impact: Corporate payroll systems must be calibrated to track these wage triggers. If a business owner earns over $150,000 and their company's retirement plan does not feature a Roth contribution option, the plan cannot legally allow any catch-up contributions for high earners until a Roth feature is added.
OneDigital
4. Case Study: Maximizing a Medical Practice Deduction in Franklin, TN
To see how these rules function together, consider a hypothetical medical practice operating as an S-corporation in Franklin, Tennessee. The practice is owned by two physicians who file married joint returns, and it generates $500,000 in net pass-through Qualified Business Income.
By working closely with an experienced wealth planner and a corporate CPA, the practice installs an integrated retirement framework. This strategy shifts business income out of immediate taxation, protects the owners' QBI deductions, and establishes a robust, compounding wealth engine outside the business entity.
5. Q&A
Question: What is the maximum business contribution limit for a SEP IRA?
Answer: The maximum annual contribution limit for a SEP IRA is capped at 25% of the business's net adjusted profit (or 20% for self-employed individuals), up to a maximum statutory cap of $68,000. These contributions are made exclusively by the employer and can be adjusted annually based on the company's financial cash flow.
Question: How does the SECURE 2.0 Roth catch-up rule affect high-earning business owners?
Answer: The SECURE Act 2.0 Roth catch-up mandate requires that any retirement plan participant whose prior-year FICA wages exceeded $150,000 must make their age-50+ catch-up contributions on an after-tax Roth basis. If the sponsoring business does not offer a Roth option within its corporate retirement plan, high earners are barred from making any catch-up contributions until a Roth structure is formally adopted.
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Regulatory Alignment & Professional Standards: William Bevins is a fee-based financial planner operating in Franklin, Tennessee. He holds the CERTIFIED FINANCIAL PLANNER™ (CFP®) and Certified Trust and Fiduciary Advisor (CTFA) designations. Wealth planning and business consulting services are provided with a commitment to transparency, regulatory compliance, and a strict fiduciary standard. All insights presented are for structured educational purposes and do not represent guaranteed market returns or specific legal advice.
