Income alone does not determine which retirement arrangement fits a business owner. Employees, related businesses, existing plans, compensation and funding obligations can change the answer. For an owner with real estate, separate the cash available to fund contributions from compensation or earned income recognized by the retirement rules.

This guide helps define a professional review. It does not recommend a financial product or promise a deduction.

Start with the people and businesses

Before requesting an illustration, assemble an ownership chart and employee census. Identify other businesses owned by you or family members, existing arrangements and employees working across entities. Related-employer rules can require businesses and plans to be considered together.

  • Workforce: Ask what age, service, hours, compensation and employment-history records are needed, including part-time staff.
  • Ownership: Identify operating companies, property entities, ownership percentages and changes.
  • Existing plans: Include plans sponsored by each business and participation through another employer.
  • Business outlook: Describe hiring, acquisitions, a possible sale, fluctuating profits and cash needed for property repairs or debt service.

A separate LLC or payroll does not by itself establish that a business can be ignored. See the controlled-group and affiliated-service-group guide. Provide employee and financial records through an agreed secure channel.

Confirm qualifying compensation separately from cash

For an S corporation shareholder-employee, distributions do not create contribution capacity. The calculation uses qualifying compensation under the plan and applicable rules. Do not assume every amount on a W-2 is treated identically for every purpose.

A self-employed individual uses adjusted net earnings from self-employment, not gross receipts or the bank balance. Rental receipts are not automatically qualifying earned income merely because the owner manages property. Ask the reviewer to identify the income classification, compensation definition and required adjustments.

Before changing wages, coordinate compensation support, payroll costs, plan limits, employee costs and tax effects. See S corporation plan design and IRS S corporation guidance.

Compare requirements instead of selecting by income band

  • One-participant 401(k): Intended for an owner with no employees, or the owner and spouse. Eligible staff cannot simply be excluded. Review the IRS owner-only plan guidance.
  • 401(k) and profit sharing with employees: Ask about eligibility, testing or safe-harbor rules, employer contributions, vesting, administration and payroll integration. The owner's contribution does not establish workforce cost.
  • SEP or SIMPLE IRA: Evaluate eligibility, employer obligations, limits and interaction with other plans. Simpler administration does not mean employees can be omitted.
  • Defined benefit or cash balance: Obtain actuarial analysis of benefits, coverage, funding obligations and deductible amounts. A large illustration is not a guaranteed annual deduction. See cash balance feasibility questions.

When more than one arrangement is proposed, require an explanation of combined limits and testing. Do not add two advertised maximums and assume the total is available.

Separate traditional, Roth and employer contributions

Roth contributions do not provide the same current income exclusion as pre-tax employee deferrals, and tax-free distribution treatment depends on applicable conditions. Not every contribution should be described as a current deduction.

Some plans permit designated Roth contributions. SECURE 2.0 also permits Roth treatment under SEP and SIMPLE IRA arrangements; availability, reporting and treatment depend on the actual arrangement and contribution type. Ask what the plan supports. See the IRS SECURE 2.0 reporting explanation.

Use the correct year's limits for the participant and plan. The IRS annual limits page separates contribution, compensation and catch-up rules. A published maximum is not a personalized calculation.

Model the commitment alongside property needs

Request owner and employee contributions, administration and actuarial fees, payroll effects and other required costs. Separate money placed in retirement accounts from professional fees and projected tax effects. Include a lower-profit scenario and planned building purchases, repairs, debt payments and reserves.

Defined-benefit funding obligations can persist when business conditions change. Ask who determines PBGC coverage and premiums rather than assuming a small professional practice is exempt. See PBGC coverage guidance.

Ask how hiring, a sale, freeze or termination would affect the arrangement. This is a request for documented analysis, not a recommendation to open, fund or terminate a plan.

Use a separate deadline for each task

Adoption, employee elections, payroll withholding, deposits, employer funding, notices and annual filings are different tasks. No single December 31 or tax-return deadline covers every arrangement.

Some adoption or employer-contribution opportunities can extend beyond year-end. That does not make all salary deferrals retroactive or postpone every funding obligation. Ask the administrator for a dated action list identifying applicable rules and any specific exception.

Withheld employee contributions have separate deposit requirements. Do not treat the employer's tax-return deadline as their general deposit deadline. See Publication 560 and IRS contribution guidance.

Name the coordinator and deliverables

You can retain your CPA while obtaining specialist plan-design help. Confirm which tasks each provider performs and whether they are included in the quote.

  • Owner: Supplies complete census and ownership information and approves business decisions.
  • Tax advisor and preparer: Coordinate compensation, modeled tax effects, deduction reporting and entity or owner returns within their scopes.
  • Plan administrator or TPA: Handles assigned documents, eligibility, testing, communications and filings.
  • Enrolled actuary: Performs required defined-benefit calculations and certifications.
  • Payroll provider: Implements approved instructions, reconciles records and coordinates reporting.
  • Named coordinator: Maintains the deadline list and confirms that documents, payroll, funding and reporting agree.

Identify exclusions, ongoing administration, correction support and the advisory period. Tax advice does not automatically include investment management, administration or every annual filing. Compare retirement and exit advisory scope, pricing and the engagement scorecard.

Frequently asked questions

Can I use a Solo 401(k) when my business has employees?

A one-participant 401(k) is designed for an owner with no employees, or the owner and spouse. Eligible employees cannot simply be excluded. Ask the administrator to review the workforce and related businesses before treating the arrangement as owner-only.

Do rental income and S corporation distributions increase retirement contribution capacity?

Not automatically. S corporation distributions do not create contribution capacity. Rental cash flow and qualifying compensation are separate questions; the reviewer must determine the income classification and the applicable compensation or earned-income calculation.

Does every retirement contribution reduce current taxable income?

No. Treatment depends on the contribution type, plan and applicable rules. Roth contributions do not provide the same current income exclusion as pre-tax employee deferrals, and employer deductions require their own analysis.

Can I wait until my tax-return deadline to complete every plan task?

No. Adoption, elections, payroll deposits, employer funding, notices and filings have separate deadlines. Some work may be possible after year-end, but a specific rule must support it. Obtain a written deadline list from the responsible professionals.

Discuss Your Retirement-Plan Review

Start with a general description of your businesses, workforce, existing plans, property commitments and decision. Arrange secure intake before sending employee or financial records.

Schedule a Discovery Call

General information, not individualized tax, legal or investment advice. Editorial policy.

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