What forms do I need for SSDI in Illinois?
By Hogan Smith
Updated 08/05/2025
If you're applying for Social Security Disability Insurance (SSDI) in Illinois, having the right forms ready is essential. Submitting complete and accurate documentation can help avoid delays or denial. Here's a breakdown of the key forms you'll need.
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Primary Forms Required for SSDI
These are the most common forms you'll need to start your application:
SSA-16: Application for Disability Insurance Benefits
This is the main application form. It collects your basic info, work history, and disability details.
SSA-3368: Adult Disability Report
This form asks about your medical condition, treatments, doctors, medications, and how your disability affects your ability to work.
SSA-827: Authorization to Disclose Information to SSA
This allows Social Security to request your medical records directly from your doctors or hospitals.
Other Forms You Might Need
Depending on your situation, SSA may also request:
- SSA-3373: Function Report – Describes how your condition affects daily activities
- SSA-3380: Third Party Function Report – Filled out by someone who knows you well
- Work History Report: Sometimes requested to better understand your job duties
- Self-Employment Information: If you’ve worked as a freelancer or business owner
The SSA will notify you which forms are needed based on your application details.
Where to Get These Forms
- Online at SSA.gov: All forms are downloadable or fillable online
- Local SSA Office: You can visit your local office in Illinois for in-person assistance
- By Mail: SSA may send forms after you begin your application
Tips for Completing SSDI Forms
- Be detailed and honest in your responses
- Use consistent information across all forms
- Don’t skip sections — unanswered questions can delay your claim
- Provide dates, names, and medical sources whenever possible
How Hogan Smith Can Help
Completing SSDI forms on your own can be overwhelming. At Hogan Smith, we guide Illinois residents through the application and appeal process — making sure every form is complete, accurate, and submitted on time.
We can help:
- Ensure all forms are filled out properly to avoid denial
- Collect and organize medical records and employment history
- Prepare additional documents like function reports or appeal forms
- Represent you if your initial claim is denied
Contact Hogan Smith Today
Need help getting your SSDI paperwork in order? Let Hogan Smith take the pressure off. Let’s move your claim forward — with confidence.
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