1. Submitting Incomplete Medical Evidence

One of the most frequent reasons SSDI claims are denied is lack of sufficient medical documentation. The Social Security Administration (SSA) needs detailed records showing:

• Your diagnosis
• Treatments you’ve received
• Your response to treatment
• How your condition limits your ability to work

If you fail to submit complete and up-to-date records from all treating providers, the SSA may conclude there’s not enough proof to support your claim.

2. Missing Application Deadlines

Deadlines are strict in the SSDI process. In New Hampshire, you must:

• Respond to SSA requests for information within the given timeframe
• File appeals within 60 days of receiving a decision

Missing a deadline can mean starting your application over, losing months—or even years—of potential benefits.

3. Continuing to Work Above SGA Limits

If you earn more than the SSA’s Substantial Gainful Activity (SGA) threshold (for 2025, $1,550 per month for non-blind applicants), your claim could be denied automatically. Even part-time or remote work that exceeds SGA limits can jeopardize your eligibility.

4. Inconsistent Statements

Any inconsistencies between your written application, medical records, and what you say during an interview or hearing can raise red flags. For example:

• Telling your doctor you can walk long distances, but telling the SSA you can’t
• Listing different onset dates of disability in various documents

Consistency is key for credibility.

5. Not Following Prescribed Treatment

If you don’t follow your doctor’s treatment recommendations without a valid reason (such as cost or severe side effects), the SSA may assume your condition isn’t as disabling as you claim.

6. Handling the Process Without Legal Help

While you can file an SSDI claim on your own, navigating the rules, gathering evidence, and meeting deadlines can be overwhelming. Many applicants make avoidable mistakes simply because they’re unfamiliar with the system.