Quick Answer
You can set up and fund a SEP-IRA until your tax filing deadline, including extensions. For 2026 taxes, that's April 15, 2027, or October 15, 2027 with an extension. This allows contributions up to 25% of self-employment income or $69,000, whichever is less.
Best Answer
Priya Sharma, Small Business Tax Analyst
Best for established freelancers who want to maximize retirement savings
When can you set up and fund a SEP-IRA?
Unlike traditional and Roth IRAs, SEP-IRAs have an extended deadline that aligns with your tax filing deadline. You can establish and fund a SEP-IRA until April 15, 2027 for the 2026 tax year, or October 15, 2027 if you file an extension.
This flexibility makes SEP-IRAs incredibly powerful for freelancers who have a strong income year and want to reduce their tax liability at the last minute.
Example: $120,000 freelance income in 2026
Let's say you earned $120,000 in freelance income in 2026. After the self-employment tax deduction adjustment (multiplying by 0.9235), your adjusted self-employment income is $110,820.
Your maximum SEP-IRA contribution would be:
If you're in the 24% tax bracket, this $27,705 contribution saves you $6,649 in federal taxes, plus state taxes if applicable.
SEP-IRA vs. other retirement options comparison
Key factors for SEP-IRA contributions
What you should do
1. Calculate your maximum contribution using your net self-employment income
2. Ensure you have enough cash flow to make the contribution by the deadline
3. Open the account with a reputable provider (Vanguard, Fidelity, Schwab)
4. Make the contribution and keep records for tax filing
5. Consider using our deduction finder to identify other retirement savings opportunities
[Use our deduction finder to calculate your maximum SEP-IRA contribution →]
Key takeaway: SEP-IRAs offer the latest setup deadline of any retirement plan—you can establish and fund one until your tax filing deadline, making them perfect for last-minute tax planning with contributions up to $69,000 annually.
*Sources: [IRS Publication 560](https://www.irs.gov/pub/irs-pdf/p560.pdf), [IRC Section 408(k)]*
Key Takeaway: SEP-IRAs can be set up and funded until your tax filing deadline including extensions, allowing contributions up to 25% of self-employment income or $69,000.
SEP-IRA deadlines compared to other retirement accounts
| Retirement Account | Setup Deadline | Funding Deadline | 2026 Contribution Limit |
|---|---|---|---|
| SEP-IRA | Tax filing deadline + extensions | Tax filing deadline + extensions | 25% of income or $69,000 |
| Solo 401(k) | December 31, 2026 | Tax filing deadline + extensions | Up to $69,000 + catch-up |
| Traditional/Roth IRA | Tax filing deadline | Tax filing deadline | $7,000 + catch-up |
More Perspectives
Priya Sharma, Small Business Tax Analyst
Best for high-income freelancers who need maximum retirement contributions
Why high earners should prioritize SEP-IRAs
If you're earning $100K+ as a freelancer, the SEP-IRA's extended deadline becomes a crucial tax planning tool. You can literally wait until April 15th (or October 15th with an extension) to decide whether to establish one based on your final income numbers.
Example: $200,000 freelance income strategy
With $200,000 in net freelance income (after the SE tax adjustment of $184,700), your SEP-IRA contribution would be capped at the annual limit of $69,000—not the 25% rule ($46,175). This $69,000 contribution could save you:
Strategic timing considerations
For high earners, the timing flexibility lets you:
1. Wait for final profit numbers: You might have December client payments or year-end expenses that affect your contribution capacity
2. Coordinate with other retirement accounts: Balance SEP-IRA contributions with Solo 401(k) contributions if you have both
3. Optimize across tax years: If you expect lower income next year, maximize this year's contribution
4. Plan for estimated taxes: High earners paying quarterly estimates can adjust Q1 payments based on the SEP-IRA contribution
Key takeaway: High-earning freelancers can use the SEP-IRA's flexible deadline to make large tax-deductible contributions up to $69,000 based on final income calculations, potentially saving $20,000+ in taxes.
*Sources: [IRS Publication 560](https://www.irs.gov/pub/irs-pdf/p560.pdf)*
Key Takeaway: High-earning freelancers can contribute up to $69,000 to a SEP-IRA until tax deadline, potentially saving $20,000+ in taxes on six-figure incomes.
James Okafor, Self-Employment Tax Specialist
Best for first-year freelancers learning about retirement options
SEP-IRA basics for new freelancers
As a new freelancer, you might be surprised to learn you can set up a retirement account even after the year ends. The SEP-IRA is perfect for first-year freelancers because you can wait to see your actual income before deciding to establish one.
Example: $45,000 first-year freelance income
Say you made $45,000 in your first year freelancing. After the self-employment tax adjustment ($41,558), your maximum SEP-IRA contribution would be:
$41,558 × 25% = $10,390
If you're in the 22% tax bracket, this saves you $2,286 in federal taxes plus any state tax savings.
Why the deadline matters for beginners
Many new freelancers don't realize they can:
Getting started steps
1. Calculate your net self-employment income from Schedule C
2. Apply the SE tax adjustment (multiply by 0.9235)
3. Calculate 25% of that adjusted amount for your maximum contribution
4. Choose a provider and open the account before your filing deadline
5. Make the contribution and claim the deduction on your return
Key takeaway: New freelancers can establish a SEP-IRA until their tax filing deadline, allowing them to reduce first-year tax liability with contributions up to 25% of their freelance income.
*Sources: [IRS Publication 560](https://www.irs.gov/pub/irs-pdf/p560.pdf)*
Key Takeaway: New freelancers can set up a SEP-IRA until tax filing deadline to reduce their first year's tax liability with contributions up to 25% of freelance income.
Sources
- IRS Publication 560 — Retirement Plans for Small Business
- IRC Section 408(k) — Individual retirement accounts
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.