Hope someone can help me with this. I work for city government and contribute to a 457b plan. The retirement plan checkbox is not checked on my W2. I checked with our payroll people and asked why and they referenced that it is excluded specifically in the W2 instructions. I've also seen on this forum that with a 457b and the box not checked and no other plans, you can deduct your IRA contribution up to the allowed amount from taxes. My financial planner insists I can't because I contribute to the 457b plan. Can anyone tell me why a 457b is different or point me to documentation that supports this? I've seen that it is considered a "non-qualified" plan but what does that mean? Thanks in advance for any help!