A Fidelity SEP-IRA is one of the most cost-efficient retirement accounts for self-employed individuals and small business owners. The 2026 contribution limit is $70,000 with no account minimum and access to Fidelity ZERO index funds at 0% expense ratio — making ongoing costs essentially zero.
What Is a SEP-IRA?
A SEP-IRA (Simplified Employee Pension Individual Retirement Account) is a retirement account designed for self-employed individuals, freelancers, sole proprietors, and small business owners. Contributions are made by the employer (which is you, if self-employed) and are tax-deductible.
2026 SEP-IRA Contribution Limits
| Detail | Amount |
|---|---|
| Maximum contribution | $70,000 |
| Percentage limit (W-2 employees) | 25% of compensation |
| Effective rate (self-employed) | ~20% of net self-employment income |
| Catch-up contribution (age 50+) | None — SEP-IRAs have no catch-up |
| Contribution deadline | Tax filing deadline + extensions (Oct 15, 2027) |
| Source | IRS Notice 2025-82 |
How to Calculate Your SEP-IRA Contribution (Self-Employed)
The IRS requires a two-step adjustment for self-employed taxpayers:
- Subtract half of self-employment tax from net self-employment income
- Multiply by 20% (the self-employed equivalent of the 25% W-2 rate)
Worked example — freelancer earning $150,000 net:
- Half of SE tax: $150,000 × 7.65% = $11,475
- Adjusted net SE income: $150,000 − $11,475 = $138,525
- SEP contribution: $138,525 × 20% ≈ $27,705
| Net SE Income | Approximate SEP Contribution (20%) |
|---|---|
| $50,000 | ~$9,293 |
| $100,000 | ~$18,587 |
| $150,000 | ~$27,705 |
| $200,000 | ~$36,941 |
| $280,000+ | $70,000 (maximum) |
Exact figures depend on SE tax calculation. Consult a tax professional for your specific situation.
SEP-IRA vs Solo 401(k): Which Is Better?
| Feature | SEP-IRA | Solo 401(k) |
|---|---|---|
| Contribution limit (2026) | $70,000 | $70,000 + $23,500 employee salary deferral |
| Catch-up (age 50+) | None | $7,500 additional salary deferral |
| Roth option | Limited (SECURE 2.0 allows Roth SEP) | Yes (Roth Solo 401k) |
| Employees allowed | Yes, but must cover them | No (you + spouse only) |
| Setup complexity | Very simple | More complex |
| IRS filing required | No (under $250,000) | Form 5500-EZ (over $250,000) |
Key insight: If you’re self-employed with no employees and want to maximize contributions, a Solo 401(k) generally allows higher total contributions because you can make both employee salary deferrals ($23,500 in 2026) AND employer profit-sharing contributions (up to 25% of compensation). A SEP-IRA allows only the employer portion.
For simplicity with employees, or when just getting started, a SEP-IRA is often the easier first step.
SEP-IRA Tax Benefits
- Contributions are tax-deductible — reduce your adjusted gross income
- Growth is tax-deferred — no taxes on dividends, interest, or capital gains inside the account until withdrawal
- Withdrawals in retirement are taxed as ordinary income
- Required Minimum Distributions begin at age 73 (same as Traditional IRA)
- No income limit — SEP-IRA contributions are not phased out at any income level
Deadline Flexibility: A Key SEP-IRA Advantage
Unlike a 401(k) which must be established by December 31, a SEP-IRA can be opened and funded as late as your tax filing deadline including extensions.
For 2026 contributions:
- Standard deadline: April 15, 2027
- With extension: October 15, 2027
This means you can file a tax extension, evaluate your 2026 earnings in September, calculate your optimal SEP contribution, and still make the 2026 contribution — one of the most flexible retirement account rules for small business owners.
Why Open a SEP-IRA at Fidelity?
Fidelity is a top choice for SEP-IRAs because:
- $0 account minimum — open with any amount
- $0 commissions on stock and ETF trades
- Fidelity ZERO funds — 0.00% expense ratio inside the SEP-IRA
- Fractional shares — invest any dollar amount in any US stock or ETF
- Same platform as your other Fidelity accounts — consolidated view
Investment Options Inside a Fidelity SEP-IRA
| Investment Type | Details |
|---|---|
| Fidelity ZERO funds | FZROX, FZILX, FZIPX — 0.00% ER |
| iShares/Vanguard ETFs | $0 commission |
| Individual stocks | $0 commission, fractional shares available |
| Bonds and CDs | Fidelity fixed income marketplace |
| NTF mutual funds | Thousands of no-transaction-fee funds |
Tax Savings Example: Fidelity SEP-IRA in Action
Scenario: Freelance consultant, single, $180,000 net self-employment income, 2026 tax year:
- Approximate SEP contribution: $180,000 × 20% = $33,882 (after SE tax adj.)
- Federal tax bracket: 32%
- Federal tax savings: $33,882 × 32% = $10,842
- State tax savings (at 5% average): $33,882 × 5% = $1,694
- Total estimated 2026 tax savings: ~$12,536
That $33,882 invested in FZROX (0.00% ER) for 20 years at 7% grows to approximately $131,100 — entirely in a tax-deferred account.
Fidelity SEP-IRA vs Fidelity Solo 401(k)
Fidelity offers both a SEP-IRA and a Self-Employed 401(k) (Solo 401(k)):
| SEP-IRA | Solo 401(k) | |
|---|---|---|
| Max contribution (2026) | $70,000 | Up to $93,500 (with salary deferral) |
| Roth option | No (at Fidelity) | Yes |
| Employees | Yes, must cover them | No |
| Setup | Instant online | More paperwork |
For self-employed individuals without employees who want to maximize contributions, the Fidelity Solo 401(k) typically allows higher total contributions because of the employee salary deferral component. The SEP-IRA is simpler to set up and administer.
How to Open a Fidelity SEP-IRA
- Go to fidelity.com → “Open an Account” → “Small Business Retirement” → “SEP-IRA”
- Complete the application (Social Security number or EIN, business information)
- Sign the IRS Form 5305-SEP adoption agreement (Fidelity provides this)
- Link your business checking account
- Contribute any amount up to your 2026 limit (deadline: Oct 15, 2027 with extension)
The account opens within 1–3 business days.
Managing Employees in a Fidelity SEP-IRA
If you have eligible employees, you must contribute the same percentage to their SEP-IRA accounts as you contribute to your own. Eligible employees are those who:
- Are at least 21 years old
- Have worked for you in at least 3 of the last 5 years
- Have earned at least $750 (2026 threshold) from you during the year
Fidelity can open SEP-IRA accounts for each eligible employee as part of the plan setup.
Bottom Line
A Fidelity SEP-IRA is one of the best choices for self-employed investors who want low-cost index fund investing with zero trading commissions. The 0% ZERO funds and fractional shares make it easy to invest every dollar of your contribution at minimal cost.
For the full Fidelity overview, see the Fidelity Review 2026. For the general IRA comparison, see the Fidelity IRA guide.
The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy