401k Max Contribution 2025 Calculator Single. For 2025, the 401 (k) limit for employee salary deferrals is $23,000, which is above the 2025 401 (k) limit of $22,500. Save on taxes and build for a bigger retirment!

Please note that this calculator is only intended for sole proprietors (or llcs taxed as such). Note that your annual contribution is also subject to.