Retirement Plans for Insurance Agents: Sheltering Trail Commission Income

By Yarik Yarosh, CPA ·September 5, 2026 ·3 min read

Written by Yarik Yarosh, CPA (US & Canada) September 5, 2026 · FL CPA license AC61704 · CPA Ontario

Insurance agents with a growing book of business face a tax problem that gets worse every year: renewal commissions (trail commissions) are fully taxable SE income, but the agent performs little active work to earn them. The policies auto-renew, the carriers pay the trail, and the income stacks on top of new-business commissions. Retirement plan contributions are one of the most effective ways to shelter this income.

✓Key takeaway

Solo insurance agents (no employees) can use a Solo 401(k): $23,500 employee deferral + approximately 20-25% employer contribution (based on S-Corp salary or net SE income), maximum $70,000 combined for 2025, plus catch-up for age 50+ ($7,500) or ages 60-63 ($11,250 under SECURE 2.0). Agents with employees (CSRs, admin staff) must use a SEP IRA (equal percentage), Safe Harbor 401(k) (3-4% employer match/contribution), or SIMPLE IRA. Older agents (55+) with high renewal income ($200,000+) can add a defined benefit plan allowing $150,000-$350,000/year in deductible contributions. Because insurance is an SSTB, the retirement contribution serves a dual purpose: it shelters income from tax AND can reduce taxable income below the QBI phase-out threshold ($191,950 single / $383,900 MFJ), preserving the QBI deduction. A $23,500 Solo 401(k) deferral can move an agent from inside the QBI phase-out range to below it, preserving a $30,000+ QBI deduction.

How do retirement contributions affect the SSTB threshold?

For insurance agents near the QBI phase-out range, retirement contributions can preserve the QBI deduction:

Hypothetical example

Round numbers. An insurance agent filing MFJ has $400,000 in taxable income before retirement contributions. The SSTB phase-out range for MFJ is $383,900-$533,900 (widened by the OBBBA).

At $400,000 taxable income: the agent is $16,100 into the $150,000 phase-out range. The QBI deduction is reduced by approximately 10.7%. If the full QBI would be $25,000, the available QBI is approximately $22,300.

If the agent contributes $23,500 to a Solo 401(k): taxable income drops to $376,500, which is BELOW the phase-out threshold. The full QBI deduction ($25,000) is available, saving $6,000 at 24%.

The retirement contribution cost the agent nothing in cash (it is a transfer to their own retirement account), reduced taxable income by $23,500, and preserved $2,700 in additional QBI deduction. Total tax savings from the $23,500 contribution: $5,640 (income tax) + $2,700 x 24% = approximately $6,288 in combined income tax and QBI savings.

Illustrative numbers only, not a real client and not advice for your facts.

What about the defined benefit plan for high-income agents?

Insurance agents age 55+ with consistent high income ($200,000+ in renewal and new-business commissions) can establish a defined benefit plan. The contribution is actuarially determined based on the agent’s age, the plan’s targeted benefit at retirement, and the investment returns.

For a 58-year-old agent earning $300,000: a defined benefit plan can allow contributions of $200,000-$300,000 per year for the 7 years until retirement at 65. Combined with a Solo 401(k) ($23,500 + employer), the total annual shelter can exceed $250,000.

The defined benefit plan requires consistent annual funding (the contribution is mandatory, not discretionary) and annual actuarial costs ($2,000-$5,000). Agents with volatile income should be cautious: if income drops in a future year, the mandatory contribution can create a cash flow problem.

What about agents with employees?

An agent who employs a customer service representative (CSR), an office manager, or other staff cannot use the Solo 401(k). The plan must cover eligible employees.

Safe Harbor 401(k): The employer makes a 3% nonelective contribution ($1,200 for an employee earning $40,000). The agent defers $23,500 plus receives the employer contribution. This is the lowest-cost option for the employer.

SEP IRA: The employer contributes the same percentage for the agent and all employees. At 15% for the agent ($45,000), the agent must contribute 15% for the CSR ($6,000). More expensive than the Safe Harbor 401(k) for the same agent contribution.

Related guides:

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Cite this page

Yarik Yarosh, CPA. "Retirement Plans for Insurance Agents: Sheltering Trail Commission Income." Blue Cloud CPA, September 5, 2026. https://bluecloudcpa.com/guides/insurance-agency-retirement-plans-trail-commissions

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.