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Accounting Lions

Retirement plans

Retirement plan setup, matched to your actual income.

Self-employed retirement plans look the same on paper and behave wildly differently in practice. SEP-IRA, Solo 401(k), or SIMPLE IRA — the right answer depends on your income, your structure, your spouse's involvement, and whether you have employees. We run the math, recommend the plan, file the paperwork.

What this is

Setting up the plan and filing the paperwork — not picking the investments.

Self-employed and owner-operator retirement plans give you a tax-advantaged way to save for retirement that scales with your income. SEP-IRA is the simplest. Solo 401(k) is the most flexible (especially for high earners who want Roth contributions). SIMPLE IRA is for businesses with employees who want a lower-cost option than a traditional 401(k). Each has its own contribution limits, deadlines, and paperwork rhythm. We help you pick the right plan for your situation, file the setup paperwork, and calculate annual contribution maxes. We don't pick investments — that's your advisor's job, and we refer when you don't have one.

The plan types

Which plan fits which situation.

Most self-employed owners end up in one of three plans, depending on income, complexity tolerance, and whether employees are involved.

Retirement plans

SEP-IRA (simplest)

Contribute up to 25% of net self-employment earnings, capped at $70,000 in 2025. No annual filing. Contribution deadline extends to your tax filing deadline including extensions. Best for high-income solo earners who want simplicity.

Retirement plans

Solo 401(k) (most flexible)

For self-employed with no employees (spouse OK). Allows BOTH employee deferrals AND employer profit-sharing — up to $77,500 in 2025 for those 50+. Roth option available. Must be open by December 31 to count for that year.

Retirement plans

SIMPLE IRA (with employees)

For businesses with up to 100 employees. Lower contribution limits than 401(k) but much simpler to administer. Required employer match. Annual deadline October 1 for setting up a new plan to apply to that year.

Retirement plans

Cash balance + defined benefit (high earners)

For owners 50+ earning $300K+ who want to contribute $100K-$300K/year. Custom-actuary plans. We coordinate with a third-party administrator.

Retirement plans

Backdoor Roth IRA

For owners whose income exceeds Roth contribution phase-out. Non-deductible traditional IRA contribution + Roth conversion. We coordinate the timing to avoid pro-rata complications.

Retirement plans

Spousal coverage

Spouse can be added to most plans if they're a legitimate employee or co-owner. Doubles your household contribution capacity in many cases.

The deadline trap

Some plans must exist by December 31. Others give you until April.

SEP-IRA contributions can be made up to the tax filing deadline (including extensions) — meaning you can decide in October to fund the prior year's SEP. Solo 401(k) is different: the plan must EXIST by December 31 of the year you want to contribute for. So a December 30 phone call to set up a Solo 401(k) for that year is fine; a January 2 phone call is too late. SIMPLE IRA has its own October 1 deadline for new-plan setup. We track all three. The 65-day rule and other extensions exist but apply narrowly — easier to set up the plan early and decide funding amounts at filing time.

Common questions

What people ask us about this.

The best plan is the one that exists by December 31.

Most retirement-plan mistakes happen in January — missed setup windows, wrong plan, contributions that exceed limits. Set it up before year-end.