Payroll Processing Deadlines for Employee Retirement Contributions: A Year-End Guide for Finance Offices
As the year comes to a close, employees have a limited window to make final contributions to their workplace retirement accounts. Whether participating in a 401(k), 403(b), governmental 457(b), or the federal Thrift Savings Plan (TSP), understanding payroll deadlines is essential to making the most of annual contribution limits.
For employees hoping to increase their retirement savings before year-end, the most important date is December 31, 2026. However, the actual deadline may be earlier depending on an employer's payroll schedule.
Key Retirement Contribution Deadlines
Here are the dates employees should keep on their calendars:
December 31, 2026 – Final Workplace Retirement Contributions: Employee contributions to 401(k), 403(b), 457(b), and TSP accounts must come from compensation paid during the calendar year. Employees should contact their payroll or benefits office to determine the last paycheck that can include a 2026 contribution.
April 15, 2027 – Traditional and Roth IRA Contributions: Unlike workplace retirement plans, eligible employees can generally make contributions to an IRA for the 2026 tax year through April 15, 2027. This deadline does not extend if an employee files a tax extension.
Know Your 2026 Contribution Limits
The IRS sets annual limits on how much employees can contribute to retirement accounts. For 2026, the limits include:
401(k), 403(b), Governmental 457(b), and TSP: $24,500 for employees under age 50.
Employees age 50 and older: An additional $8,000 in catch-up contributions may be available.
Employees ages 60–63: Eligible participants may qualify for a higher catch-up limit of $11,250.
Traditional and Roth IRAs: $7,500, with an additional $1,100 catch-up contribution for individuals age 50 and older.
Plan eligibility, income restrictions, and individual plan provisions may affect the amount an employee can contribute.
Check Your Payroll Schedule Before Year-End
Employees who want to increase their retirement contributions should not wait until the final week of December. Payroll processing cutoffs, holiday schedules, and contribution election changes can affect when deductions take effect.
Contact your payroll or benefits office early to confirm the last eligible paycheck, review your year-to-date contributions, and submit any necessary changes.
Taking a few minutes to review these deadlines can help employees avoid missed contribution opportunities and make the most of their retirement savings before the year closes.
