Quick Answer
Your maximum SEP-IRA contribution is 25% of your net self-employment earnings after reducing for the deductible portion of self-employment tax. For someone earning $100,000 in freelance income, the maximum contribution would be approximately $18,587, not $25,000.
Best Answer
Priya Sharma, Small Business Tax Analyst
Best for freelancers who want to understand the step-by-step calculation process
How to calculate your maximum SEP-IRA contribution
The SEP-IRA contribution limit isn't simply 25% of your gross freelance income. You must first calculate your net self-employment earnings, then reduce that by half of your self-employment tax. This adjusted amount becomes the base for your 25% contribution calculation.
According to [IRS Publication 560](https://www.irs.gov/pub/irs-pdf/p560.pdf), the maximum SEP-IRA contribution is the lesser of $70,000 (for 2026) or 25% of your net self-employment earnings.
Step-by-step calculation example
Let's walk through a real example with $100,000 in freelance income:
Step 1: Calculate net self-employment earnings
Step 2: Apply the 25% rate
However, there's an additional adjustment needed because the contribution reduces the income it's based on.
Step 3: Final adjustment calculation
SEP-IRA contribution limits by income level
Key factors that affect your contribution
What you should do
1. Calculate your net Schedule C profit first
2. Subtract half of your self-employment tax
3. Apply the 20% rate (not 25%) for the practical maximum
4. Consider making contributions quarterly to spread the cash flow impact
5. Use our deduction finder to identify other business expenses that could increase your contribution room
[Use our deduction finder →](https://gigworktax.com/tools/deduction-finder)
Key takeaway: Your actual SEP-IRA contribution rate is about 20% of net self-employment earnings, not 25% of gross income. A $100,000 freelancer can typically contribute around $17,371, not $25,000.
Key Takeaway: Your actual SEP-IRA contribution rate is about 20% of net self-employment earnings after adjusting for self-employment tax, not 25% of gross income.
SEP-IRA contribution limits by income level showing the relationship between earnings and maximum contributions
| Net Freelance Income | Net SE Earnings (after SE tax adjustment) | Maximum SEP-IRA Contribution | Effective Rate |
|---|---|---|---|
| $50,000 | $42,426 | $8,485 | 17.0% |
| $75,000 | $64,639 | $12,928 | 17.2% |
| $100,000 | $86,853 | $17,371 | 17.4% |
| $150,000 | $131,279 | $26,256 | 17.5% |
| $350,000 | $306,532 | $61,306 | 17.5% |
More Perspectives
Priya Sharma, Small Business Tax Analyst
Best for high-income freelancers who want to maximize retirement contributions strategically
Strategic considerations for high earners
As a high-earning freelancer, you're likely bumping against the $70,000 annual SEP-IRA limit before hitting the 25% calculation limit. This creates opportunities for additional retirement planning strategies.
When you hit the $70,000 ceiling
If your net self-employment earnings exceed $280,000 (after SE tax adjustment), you'll hit the $70,000 contribution limit rather than the 25% limit. At this income level, you should consider:
Tax optimization strategies
According to [IRS Publication 560](https://www.irs.gov/pub/irs-pdf/p560.pdf), you can combine SEP-IRA contributions with other tax strategies:
Cash flow management
High SEP-IRA contributions create significant cash outflows. Consider:
Key takeaway: High earners should evaluate whether a Solo 401(k) or defined benefit plan offers better contribution limits than a SEP-IRA, especially above $280,000 in net earnings.
Key Takeaway: High earners should evaluate whether a Solo 401(k) or defined benefit plan offers better contribution limits than a SEP-IRA, especially above $280,000 in net earnings.
Priya Sharma, Small Business Tax Analyst
Best for freelancers with variable income who need flexible contribution strategies
Managing contributions with variable income
Irregular freelance income makes SEP-IRA planning challenging because your contribution limit changes with your annual earnings. Unlike W-2 employees who can predict their 401(k) space, freelancers must adapt throughout the year.
Monthly tracking approach
Set up a system to track your potential contribution space:
Timing flexibility advantage
SEP-IRA contributions can be made up until your tax filing deadline (including extensions), giving you until October 15, 2027, for 2026 contributions. This lets you:
Building contribution consistency
Even with variable income, you can create sustainable retirement saving habits:
Key takeaway: Variable income freelancers should track contribution capacity monthly and use the flexible timing rules to optimize contributions after seeing their full year's earnings.
Key Takeaway: Variable income freelancers should track contribution capacity monthly and use the flexible timing rules to optimize contributions after seeing their full year's earnings.
Sources
- IRS Publication 560 — Retirement Plans for Small Business
- IRS Publication 334 — Tax Guide for Small Business
Related Questions
Reviewed by Priya Sharma, Small Business Tax Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.