For many employers, the decision has become even more important due to the growing number of state-sponsored retirement savings mandates. Businesses in many states may be required to offer a qualified retirement plan or participate in a state retirement program if they meet certain employee thresholds. Understanding your options can help you comply with these requirements while selecting a plan that better aligns with your business goals. Learn more about state retirement program requirements in TRA’s State Retirement Plan Mandate Guide.

However, comparing today’s small business retirement plans can be challenging. Between 401(k) plans, SIMPLE IRAs, SEP IRAs, profit sharing plans, Safe Harbor 401(k) plans, and Solo 401(k) plans, each option offers different contribution opportunities, administrative requirements, costs, compliance considerations, and levels of flexibility.

This guide compares the most common employer-sponsored retirement options to help small business owners and retirement plan advisors evaluate the available choices and determine which solution may be the best fit for their organization, workforce, and long-term objectives.

The Retirement Advantage, Inc. (TRA)^® helps employers and advisors evaluate retirement plan options, implement customized plan designs, and navigate ongoing administration and compliance requirements through its Plan Administration Services, Plan Design Services, and Third-Party Administration Services.

Key Takeaways: Comparing Small Business Retirement Plans

• 401(k) plans typically offer the highest flexibility and employee participation opportunities.
• SIMPLE IRAs can provide a lower-cost solution for smaller employers seeking straightforward administration.
• SEP IRAs are often attractive for owner-only businesses and companies looking for simplified employer-funded contributions.
• Profit sharing plans offer flexibility in employer contributions and can be combined with 401(k) plans.
• Choosing the right plan depends on business goals, employee demographics, contribution objectives, and budget considerations.

Why Offer a Retirement Plan?

Small business retirement plans provide value beyond employee benefits.

They can help employers:

• Attract and retain talent
• Reduce taxable income
• Support owner retirement savings
• Improve employee financial wellness
• Enhance overall benefits packages

Many small business owners initially focus on costs but later discover that an effective retirement plan can become a valuable business and recruitment tool.

What Are the Most Common Small Business Retirement Plans?

Most small employers evaluating retirement plans will compare four primary options:

1. 401(k) Plans
2. SIMPLE IRAs
3. SEP IRAs
4. Profit Sharing Plans

Each serves a different purpose and may be appropriate depending on company size, workforce characteristics, and employer objectives.

What Is a 401(k) Plan?

A 401(k) plan allows employees to make salary deferral contributions through payroll deductions while giving employers the option to provide matching, profit sharing, or other contributions.

401(k) plans are among the most flexible retirement plan options available because they can be customized to support a wide range of employer goals.

Benefits include:

• Employee salary deferrals
• Employer matching contributions
• Profit sharing contributions
• Roth contribution options
• Loan provisions (when allowed)
• Flexible plan design structures

Many growing small businesses choose 401(k) plans because they allow both employees and business owners to save for retirement while maintaining considerable flexibility.

Learn more about TRA’s 401(k) Plan Options.

What Is a SIMPLE IRA?

A SIMPLE IRA, or Savings Incentive Match Plan for Employees, is designed specifically for smaller employers seeking a retirement plan with minimal administrative complexity.

Employees contribute through payroll deductions, while employers generally provide either:

• A matching contribution, or
• A non-elective contribution for eligible employees

Advantages of SIMPLE IRAs include:

• Simple administration
• No annual nondiscrimination testing
• Lower administrative costs
• Easy implementation

Businesses seeking straightforward retirement benefits often consider SIMPLE IRAs as an alternative to a traditional 401(k) plan.

What Is a SEP IRA?

A SEP IRA, or Simplified Employee Pension, allows employers to make retirement contributions directly to employee accounts.

Unlike a 401(k) or SIMPLE IRA, employees do not make salary deferral contributions. Instead, all contributions come from the employer.

SEP IRAs are often attractive for:

• Sole proprietors
• Self-employed professionals
• Small family businesses
• Organizations with limited staff

Their simplicity makes them appealing, though they may be less attractive for businesses seeking employee contribution opportunities.

What Is a Profit Sharing Plan?

A profit sharing plan allows employers to make discretionary contributions to employees based on company profitability or business objectives.

Despite the name, a business does not have to generate profits every year to make a contribution.

Benefits include:

• Flexible annual contribution decisions
• Potential tax advantages
• Customized allocation options
• Ability to reward employees

Profit sharing plans are often paired with 401(k) plans, creating a powerful retirement savings solution that benefits both employees and business owners.

TRA routinely administers plans that utilize discretionary profit sharing contributions, Safe Harbor contributions, and customized allocation formulas, including pro rata, integrated, and new comparability designs.

Learn more about TRA’s Plan Design Services.

Retirement Plan Comparison: Which Option Is Best?

How Should Small Business Owners Choose?

The best retirement plan often depends on answering a few key questions.

Do Employees Need the Ability to Contribute?

If employee contributions are important, a 401(k) plan or SIMPLE IRA may be the better fit.

Is Administrative Simplicity a Priority?

Businesses seeking fewer administrative requirements may prefer a SIMPLE IRA or SEP IRA.

Does the Owner Want Maximum Flexibility?

401(k) and profit sharing plan designs generally provide the most flexibility for contribution strategies and long-term planning.

Is Workforce Retention a Key Objective?

Employers competing for talent often find that 401(k) plans offer the most competitive employee benefit structure.

Why Work With a Retirement Plan Specialist?

Selecting a retirement plan involves more than choosing a product.

Plan design, compliance requirements, employee demographics, ownership structures, contribution goals, and future growth plans all influence which solution makes the most sense.

TRA provides a comprehensive suite of retirement plan administration, compliance, consulting, and fiduciary services, including plan design consulting, new plan setup, compliance testing, Form 5500 preparation support, plan document services, payroll integration support, advisor coordination, and ongoing plan sponsor consulting.

By working with a retirement plan specialist, business owners and advisors can evaluate available options and build a strategy that aligns with both business objectives and retirement goals.

Why Small Businesses Choose TRA

Retirement plans become more complex as businesses grow. Compliance obligations, government reporting, plan design decisions, and administrative responsibilities can require significant time and expertise.

TRA helps businesses simplify those responsibilities through:

• Retirement Plan Administration Services
• Third-Party Administration (TPA) Services
• Plan Design Consulting
• ERISA 3(16) Fiduciary Services
• Compliance Testing
• Form 5500 Preparation Support
• Ongoing Plan Sponsor Consulting

TRA has administered retirement plans since 1996 and currently serves more than 10,000 retirement plans nationwide.

In Conclusion: Finding the Right Small Business Retirement Plan

There is no one-size-fits-all solution when it comes to small business retirement plans.

A SIMPLE IRA may work well for a small employer seeking simplicity. A SEP IRA may appeal to a business owner looking for streamlined employer contributions. A profit sharing plan can provide flexibility, while a 401(k) plan often delivers the broadest range of benefits, customization options, and employee engagement opportunities.

The key is choosing a plan that aligns with your business goals, workforce needs, and long-term growth strategy. With the right guidance and administration support, small business owners can create a retirement plan that delivers value today and helps build financial security for years to come.

FAQs About Small Business Retirement Plans

What is the best retirement plan for a small business?

The best plan depends on your goals, employee demographics, contribution objectives, and budget. Common options include 401(k) plans, SIMPLE IRAs, SEP IRAs, and profit sharing plans.

What is the difference between a SIMPLE IRA and a 401(k)?

A SIMPLE IRA generally offers easier administration and lower costs, while a 401(k) plan provides greater flexibility, higher customization potential, and additional plan design options.

Is a SEP IRA only for self-employed individuals?

No. SEP IRAs can be used by businesses with employees, but they are especially popular among sole proprietors and small businesses seeking simplified administration.

Can a profit sharing plan be combined with a 401(k)?

Yes. Many employers combine profit sharing contributions with a 401(k) plan to maximize flexibility and retirement savings opportunities. Learn more about TRA’s Plan Design Services.

Which retirement plan requires the least administration?

SEP IRAs and SIMPLE IRAs are generally considered the easiest plans to administer compared to traditional 401(k) plans.

Do small business retirement plans provide tax benefits?

Yes. Many retirement plans offer tax advantages for both employers and participants, including deductible employer contributions and tax-deferred savings opportunities.

How can TRA help?

TRA works with advisors and employers to evaluate retirement plan options, design customized solutions, provide compliance support, and deliver ongoing Retirement Plan Administration Services to help businesses achieve their retirement plan objectives. TRA also offers Third-Party Administration Services and ERISA 3(16) Fiduciary Services for employers seeking additional administrative support.