Social Security

How the date of attack affects your SSDI refund

What does your SSDI attack date really mean for your case? Some applicants missed out on a few months of payback simply because they didn’t understand how the date was chosen. I will explain what the start date means for your SSDI case and how the judge determines it based on your work history, status and age. You will understand how time, rules and evidence merge to shape the outcome of the claim. Check out my video to hear the rest.

Your SSDI attack date is not just a paperwork, but a game-changing decision that determines how much and when you will get it. It shapes your qualifications, determines the distance you will receive payments, and even affects your benefits to begin. Do it right, and you can ensure the financial support you deserve. Get it wrong, you may get less than you should.

So, what exactly is the start date and why is it so important? Let's break it down.

What does the start date mean

The start date refers to the day when you are unable to work due to a disability condition. While it is usually assumed that this date is consistent with the application date, it is not always the case. For SSDI, the start date can be before the application date. However, for SSI, it is impossible to set the start date earlier than the application date.

The start date was initially called the “so-called onset date” because it was not officially recognized until the judge included it in a written decision. The judge determines the final date of onset based on medical evidence, work history and other factors raised during the case.

There are different types of conditions that lead to disability.

In some cases, due to degradation, the gradual decline of individual work ability. In other cases, sudden injuries or medical events (such as car accidents) mark a clear and immediate date of onset.

After the start date, you can still apply for benefits.

For example, individuals who filed in 2025 can claim the date of the attack in 2024. In this case, reimbursement can be granted, but the Social Security Bureau only allows up to traceable payments within 12 months prior to the application date. In addition, there is a five-month waiting period before the SSDI benefits begin. The result is that the maximum retrospective salary usually covers about 17 months, including the waiting period.

Even if a person's start date has passed for several years, they are still eligible for Medicare After meeting the requirement of 29 months from the date of disability. However, it is not recommended to delay the application process. The system has already involved long wait times and rapid application helps avoid further delays.

Effects of age.

The judge can also adjust the date of the attack based on the applicant's age. The thresholds for social security rules vary between ages (including 50, 50 and above, 55 years old and above) and the thresholds for 60 years old and above. The judge sometimes changes the onset date to be consistent with the birthday that converts the claimant into a more favorable age category for approval.


Your start date is not official until the judge confirms it in writing.


Ultimately, the start date is defined as a day when you can no longer work due to disability conditions. The applicant initially claims it, but must be confirmed by an administrative law judge. The goal of legal representatives is to ensure the most favorable starting date of returns and benefits.

If you need help understanding how this applies to your situation or how to navigate your SSDI case, you can contact us at (800) 419-7606. We are here to help you.



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