New: Fidelity may offer their members hardship withdrawals to employees impacted by COVID-19. Employees can go to this section of Fidelity’s website to find out more information here.


Two voluntary retirement savings plans offer a way to increase your retirement income through regular, planned investing. You determine how much to save each month based on a percentage of your gross salary. Monthly contributions are made to your account through payroll deduction and can be made on either a pre-tax or post-tax basis.


The information on this website and in the Oregon Public Universities TDI 403(b) Guide is intended to assist in the administration of the plan, and it includes a summary of common TDI 403(b) Plan provisions. In case of conflict between this website or guide and the official plan documents of the TDI 403(b) and Oregon state law, the official plan documents, Oregon state law, and federal regulations will govern.

Eligibility to Participate

  • Available to Faculty (unclassified), Postdoctoral Scholars, Clinical Fellows, and Staff (classified) of the Oregon Public Universities
  • Student employees are not eligible


  • TDI (Tax-Deferred Investment 403(b) Plan). Participants manage their accounts and can invest with Fidelity or TIAA.  Choose between mutual funds and annuity products.  Plans include pre-tax and post-tax Roth accounts. More information
  •  OSGP (Oregon Savings Growth 457 Plan). This is a deferred compensation account that is managed for you by the Public Employees Retirement System (PERS) and contributions can be made on either a pre-tax or post-tax Roth basis. More information
  • You can participate in the TDI, OSGP or both plans

Contribution Limits

  • Monthly limits
    • Minimum of 1% of gross salary or $25 per month
    • Maximum of 85% of gross salary, remember to leave enough gross salary to cover taxes and optional deductions
  • Yearly limits
    • 2020 IRS maximum $19,500; maximum if age 50+ $26,000
    • Maximum contributions up to the IRS limit for the calendar year. Maximum contribution amounts are found on the enrollment forms and are based on age (under 50 or 50+).
    • Maximum contributions are considered separately for the TDI 403(b) and OSGP plans. You can contribute the IRS maximum to both the TDI 403(b) and OSGP if you participate in both plans.


Changes During the Year

TDI (403b) Enrollment

  • Effective date: if the form is received by the 10th of the month, it will be effective that month
  • Enrollment is a two step process
    • Create an account online with the vendor you have selected to invest with (Fidelity or TIAA)
    • Complete the Salary Reduction Agreement Form via DocuSign, or
    • Complete the paper form and return to Employee Benefits
      • Fax:  (541) 737-0541
      • Campus mail:  236 Kerr Administration Building
      • US Mail:  236 Kerr Administration Building, Corvallis, OR 97331-8578
      • Scan and email: (do not include your SSN or birthdate on form if emailing)

OSGP Enrollment

  • Effective date is the month after OSGP receives the enrollment/change form
  • To enroll complete and mail enrollment forms directly to OSGP