SEP IRA for Self-Employed 2026: Contribution Limits & Solo 401(k) Comparison

What Is a SEP IRA?

A Simplified Employee Pension (SEP) IRA is a retirement account designed for self-employed individuals and small business owners. It allows you to make tax-deductible contributions for yourself (and any employees) with minimal administrative burden.

Key Features

• High contribution limits: Up to $70,000 in 2026
• Tax-deductible: Contributions reduce your taxable income
• Simple setup: No annual IRS filings required
• Flexible: No requirement to contribute every year
• Immediate vesting: All contributions are immediately owned by the recipient

How It Works

Step	What Happens	Tax Impact
1. Setup	Open SEP IRA at any brokerage	None
2. Contribution	Employer contributes (you as self-employed)	Tax deduction
3. Investment	Full investment flexibility	Tax-deferred growth
4. Withdrawal	After age 59½	Taxed as income

SEP IRA vs Traditional IRA

Feature	SEP IRA	Traditional IRA
2026 contribution limit	$70,000 (or 25% of net earnings)	$7,000
Who contributes	Employer only	Individual
Administrative requirements	Minimal	Minimal
Roth option	No	Yes (Roth IRA)
Employee coverage	Must include eligible employees	N/A

2026 Contribution Limits

Maximum Contribution

For 2026, you can contribute the lesser of:

• 25% of compensation (or net self-employment income)
• $70,000 (the annual maximum)

For self-employed individuals, "compensation" means net self-employment income minus half of self-employment tax.

Income Required to Max Out

Contribution Goal	Net SE Income Needed
$10,000	$40,000
$20,000	$80,000
$50,000	$200,000
$70,000 (max)	$280,000+

Note: The effective contribution rate is actually about 20% of net self-employment income due to the calculation method (explained below).

No Catch-Up Contributions

Unlike 401(k)s and regular IRAs, SEP IRAs don't offer catch-up contributions for those 50 and older. The $70,000 limit applies regardless of age.

Who Qualifies for a SEP IRA?

Eligible Business Structures

• Sole proprietors: Freelancers, consultants, gig workers
• Self-employed individuals: Independent contractors
• Partnerships: Each partner can have a SEP
• LLCs: Single-member or multi-member
• S-Corps and C-Corps: Corporation makes contribution

If You Have Employees

Here's the catch with SEP IRAs: if you have eligible employees, you must contribute for them at the same percentage as yourself.

Employee eligibility requirements (all must be met):

• At least 21 years old
• Worked for you in at least 3 of the last 5 years
• Earned at least $750 in compensation during the year

Example: SEP with Employees

Person	Compensation	Your Contribution (15%)
You (owner)	$150,000	$22,500
Employee 1	$50,000	$7,500
Employee 2	$40,000	$6,000
Total	—	$36,000

The employee contribution requirement is why many small business owners with employees prefer a Solo 401(k) instead.

Calculating Your Contribution

The SEP IRA contribution calculation for self-employed individuals is more complex than it appears.

The Formula

For self-employed individuals, you can contribute up to 25% of "net self-employment earnings," which means:

1. Start with net profit from Schedule C (or partnership K-1)
2. Subtract the deductible portion of self-employment tax
3. Subtract the SEP contribution itself

Because you subtract the SEP contribution from the calculation, the effective rate is about 20% (specifically, 18.587%), not 25%.

Simplified Calculation

Use this formula for a quick estimate:

SEP Contribution = Net SE Income x 0.9235 x 0.25

Or approximately: Net SE Income x 0.20 (20%)

Example Calculations

Net SE Income	Approximate SEP Maximum
$50,000	$10,000
$100,000	$20,000
$150,000	$30,000
$200,000	$40,000
$300,000	$60,000
$350,000+	$70,000 (max)

Detailed Example

Consultant with $120,000 net self-employment income:

Step	Calculation	Amount
Net SE income	From Schedule C	$120,000
SE tax calculation base	$120,000 x 0.9235	$110,820
Self-employment tax	$110,820 x 15.3%	$16,955
Deductible SE tax	$16,955 / 2	$8,478
Net earnings for SEP	$120,000 - $8,478	$111,522
SEP contribution (25%)	$111,522 x 0.25	$27,881

SEP IRA vs Solo 401(k)

The Solo 401(k) is the main alternative for self-employed individuals without employees. Here's how they compare:

Side-by-Side Comparison

Feature	SEP IRA	Solo 401(k)
2026 total limit	$70,000	$70,000
Employee contribution	No	Yes ($23,500)
Employer contribution	Yes (25%)	Yes (25%)
Catch-up (50+)	No	Yes ($7,500)
Roth option	No	Yes
Loans	No	Yes
Setup complexity	Very simple	Moderate
Annual filing	None	Form 5500-EZ if over $250K
Employees allowed	Yes (with contributions)	No (except spouse)

Contribution Advantage: Solo 401(k)

The Solo 401(k) often allows higher contributions at lower income levels:

Net SE Income	SEP Maximum	Solo 401(k) Maximum
$50,000	$10,000	$33,500
$75,000	$15,000	$38,500
$100,000	$20,000	$43,500
$150,000	$30,000	$53,500
$200,000	$40,000	$63,500

The Solo 401(k) includes a $23,500 employee contribution plus 25% employer contribution.

When to Choose SEP IRA

• Simplicity is paramount: No annual filings, easy setup
• You have employees: Solo 401(k) isn't an option
• High income: At $350K+, both max out at $70K
• Last-minute decision: Can open and fund until tax deadline

When to Choose Solo 401(k)

• Lower income: Can contribute more at income under $200K
• Want Roth option: SEP has no Roth
• Age 50+: Catch-up contributions available
• Want loan provision: Can borrow from Solo 401(k)
• Doing backdoor Roth: SEP creates pro-rata issues

Setup and Deadlines

Opening a SEP IRA

Setting up a SEP IRA is simple:

1. Complete IRS Form 5305-SEP (or brokerage's equivalent)
2. Open a SEP IRA account at your chosen brokerage
3. Provide form to employees (if any)
4. Make contributions

Many brokerages handle steps 1-2 together in their online application.

Contribution Deadlines

Business Type	Tax Deadline	With Extension
Sole proprietor (Schedule C)	April 15, 2027	October 15, 2027
Partnership/LLC (K-1)	March 15, 2027	September 15, 2027
S-Corp	March 15, 2027	September 15, 2027
C-Corp	April 15, 2027	October 15, 2027

For 2026 contributions, you have until your 2026 tax filing deadline (including extensions).

Key Advantage: Retroactive Establishment

Unlike a Solo 401(k), you can establish AND fund a SEP IRA after year-end. This means you can wait until you know your exact income before deciding to open and contribute to a SEP IRA.

Example Timeline

Date	Action
December 2026	Complete your business year
January 2027	Calculate net self-employment income
February 2027	Open SEP IRA
March 2027	Make contribution (designate for 2026)
April 15, 2027	File taxes, claim deduction

Investment Options

A SEP IRA offers the same investment flexibility as a traditional IRA.

Available Investments

• Stocks: Individual shares of companies
• ETFs: Exchange-traded funds
• Mutual funds: Actively or passively managed
• Bonds: Individual or funds
• REITs: Real estate investment trusts
• CDs: Certificates of deposit
• Options: At some brokerages

Where to Open a SEP IRA

Provider	Minimum	Key Features
Fidelity	$0	Zero-fee index funds, excellent research
Vanguard	$0	Low-cost index funds, investor-owned
Schwab	$0	Strong customer service, broad selection
TD Ameritrade	$0	Great trading platform, now part of Schwab

Sample SEP IRA Portfolio

For a diversified approach:

Asset Class	Allocation	Example Fund
US Total Stock Market	50%	VTI or FSKAX
International Stocks	25%	VXUS or FZILX
US Bonds	20%	BND or FXNAX
REITs	5%	VNQ or FSRNX

Adjust based on your age and risk tolerance. Younger investors might hold 80-90% stocks, while those near retirement might shift toward 40-50% bonds.

Your Action Plan

If You're New to Self-Employment Retirement

1. Estimate your net self-employment income for the year
2. Calculate potential SEP contribution (income x 0.20)
3. Compare with Solo 401(k) contribution potential
4. Decide which account type fits your situation
5. Open account before tax filing deadline

Decision Framework

Your Situation	Recommendation
First year self-employed, uncertain income	Wait and open SEP after year-end
Income under $100K, want max contribution	Solo 401(k) allows more
Have employees you must cover	SEP IRA (or SIMPLE IRA)
Want simplicity above all	SEP IRA
Want Roth option	Solo 401(k)
Income over $350K	Either works, consider mega backdoor with Solo 401(k)

Annual Process

1. Track net self-employment income throughout year
2. In January, calculate final numbers
3. Determine contribution amount
4. Make contribution before tax deadline
5. Report on tax return (Schedule 1, Line 16)

If You Already Have a SEP IRA

1. Review this year's contribution amount
2. Compare to Solo 401(k) to see if you're leaving money on the table
3. Check investment allocation
4. If doing backdoor Roth, consider switching to Solo 401(k) to avoid pro-rata issues

Tax Savings Example

Self-employed consultant earning $150,000:

Item	Amount
Net SE Income	$150,000
SEP Contribution	$30,000
Federal Tax Savings (24% bracket)	$7,200
State Tax Savings (5% example)	$1,500
Total Tax Savings	$8,700

That $8,700 in tax savings plus tax-deferred growth makes the SEP IRA a powerful wealth-building tool for the self-employed.

Being self-employed has many challenges, but retirement savings shouldn't be one of them. The SEP IRA makes it easy to save significant amounts with minimal paperwork. Whether you choose a SEP or Solo 401(k), the important thing is to start saving—your future self will thank you.

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This article is for informational purposes only and does not constitute tax, legal, or investment advice. Self-employment tax rules are complex. Consult with a qualified tax professional or financial advisor for guidance specific to your situation. Investment returns are not guaranteed, and you may lose money.