You can make payroll deduction contributions on a pre-tax basis, a Roth after-tax basis, or both. Pre-tax contributions will be deducted from your paycheck before federal and state taxes are calculated, which lowers the amount of taxes withheld, saving you money every pay period. Roth contributions are taxed before they are invested in your account, allowing you to withdraw savings tax-free during retirement.

You can contribute up to $24,500 for 2026, per IRS limits. If you will be age 50 to 59 or age 64 and older by the end of the current calendar year, you can make an additional $8,000 “catch-up” contribution. If you will be age 60 to 63 by the end of the year, a higher “catch-up” limit applies to you. You can make up to $11,250 in catch-up contributions for 2026.