Solo 401(k) Contribution — Tax Deduction Guide 2026
Self-employed can contribute as both employee and employer to Solo 401(k).
Eligibility
Self-employed with no employees (except spouse)
Tax Savings Calculator
Estimated Tax Savings
$1,100
At the 22% tax bracket, a $5,000 deduction saves you $1,100 in taxes.
Savings by Tax Bracket
Requirements
- 1$23K employee + 25% employer
- 2$69K total max
- 3No other employees
Common Mistakes to Avoid
- !Having non-spouse employees
- !Not considering Roth option
Required Tax Forms
Solo 401(k) Contribution by State
State rules and tax rates affect the value of this deduction. Check your state for localized guidance:
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Frequently Asked Questions
What is the Solo 401(k) Contribution?
Self-employed can contribute as both employee and employer to Solo 401(k).
Who is eligible for the Solo 401(k) Contribution?
Self-employed with no employees (except spouse)
How much can I save with the Solo 401(k) Contribution?
The average tax savings is $18,000 per year. The maximum deduction is $69,000. Your actual savings depend on your tax bracket and qualifying amount.
What forms do I need for the Solo 401(k) Contribution?
You'll need to file Form 5500-EZ to claim this deduction.
What are common mistakes with the Solo 401(k) Contribution?
Common mistakes include: Having non-spouse employees; Not considering Roth option. Always double-check requirements before filing.
Is the Solo 401(k) Contribution worth claiming?
With average savings of $18,000, the solo 401(k) contribution is highly valuable. Make sure you meet all eligibility requirements.
Related Calculators
Traditional IRA Contribution
Avg savings: $1,540/year
401(k) Contribution
Avg savings: $5,060/year
SEP-IRA Contribution
Avg savings: $15,000/year
SIMPLE IRA Contribution
Avg savings: $3,520/year
Retirement Savings Credit (Saver's Credit)
Avg savings: $500/year
Roth IRA Conversion Strategy
Avg savings: $5,000/year