SEP-IRA vs Solo 401(k): Which Retirement Plan Wins for Self-Employed?
Self-employed professionals choosing between a SEP-IRA and a Solo 401(k) are making a decision that can mean the difference of $20,000-$40,000 per year in retirement contributions at the same income level. The Solo 401(k) wins on almost every dimension for those earning $75,000 or more - but the IUL completes what neither can provide.
Full Feature Comparison Matrix
Every key difference explained clearly
| Feature | IUL Insurance Best | Roth IRA | Traditional 401(k) |
|---|---|---|---|
| Contribution Limit Annual maximum | Unlimited* | $7,000/yr | $23,500/yr |
| Income Limits Eligibility restrictions | ✓ None | Phase-out $146K+ | ✓ None |
| Tax on Withdrawals | ✓ Tax-free via loans | ✓ Tax-free | ✗ Fully taxable |
| Required Minimum Distributions At age 73 | ✓ None | ✓ None | ✗ Yes |
| Early Access (before 59.5) | ✓ No penalty via loans | Contributions only | ✗ 10% penalty |
| Market Downside Protection 0% floor | ✓ 0% floor guaranteed | ✗ No protection | ✗ No protection |
| Death Benefit To heirs | ✓ Income-tax-free | ✗ No | ✗ No |
Our Verdict: Who Should Choose What
High Earners ($200K+)
IUL is often the best choice
Roth IRA income limits make it inaccessible or limited. IUL has no income limits and no contribution caps.
Average Earners with Room in Roth
Max Roth IRA first, then IUL
Roth IRA is simpler and lower cost. Once maxed, IUL provides additional tax-free accumulation capacity.
Those Needing Early Retirement Access
IUL has a clear edge
IUL policy loans are available at any age with no penalty. 401(k) and traditional IRAs impose a 10% penalty before 59.5.
Estate Planning Focus
IUL wins on death benefit
IUL provides an income-tax-free death benefit to heirs, which qualified accounts do not offer.
The Bottom Line
The Solo 401(k) is the better plan for most self-employed professionals earning $75,000 or more. It allows $20,000-$26,000 more in annual contributions at the same income, offers a Roth election without income limits, includes a loan provision, and preserves the backdoor Roth strategy by keeping assets outside the IRA pro-rata calculation. Add IUL for tax-free income beyond what either qualified plan can provide in retirement.
IUL Advantage: For high earners and those who've maxed out qualified accounts, IUL offers unlimited contributions, no RMDs, and tax-free income through policy loans - advantages that no qualified retirement account can match.
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