Solo 401k Contribution Limits

Understand the annual limits for your Solo 401k contributions

Quick summary of contribution limits for 2024 and 2025. Select a specific year below for detailed guidelines and examples.

Under Age 50

Contribution Type20242025
Employee Contribution$23,000$23,500
Total Contribution Limit$69,000$70,000

Age 50 and Older

Contribution Type20242025
Employee Contribution$23,000$23,500
Catch-up Contribution+$7,500+$7,500
Total Employee Contribution$30,500$31,000
Total Contribution Limit$76,500$77,500

Age 60-63

Note: For 2025, ages 60–63 have a catch-up limit of $11,250 per SECURE 2.0

Contribution Type20242025
Employee Contribution$23,000$23,500
Catch-up Contribution+$7,500+11,250
Total Employee Contribution$30,500$34,750
Total Contribution Limit$76,500$81,250

Detailed Year Guides

Select a year to view comprehensive contribution guidelines, including employer contributions, calculation methods, and practical examples: