403(b) plan participants who receive more than certain levels of adjusted gross income cannot contribute to both a traditional deductible IRA and your employer’s 403(b) plan.
However, if you are participating only in a 457(b) plan and no other plan (e.g., a state pension plan), you may be able to contribute to both a traditional deductible IRA and your employer’s 457(b) plan. Consult with your financial professional regarding your specific situation.