Can ! Really cancell my SSDI.?

Hi. No, you can't "cancel" Social Security disability (SSDI) benefits. The only way that you can voluntarily end SSDI entitlement prior to your full retirement age (FRA) is by withdrawing your original application for SSDI benefits. And, you'd only be allowed to withdraw your application if you repay any and all of the benefits you received as a result of applying for benefits.

If the reason that you want to end your SSDI benefits is so that you can return to work, you wouldn't need to withdraw your application. If you're drawing SSDI and if you return to work, your benefits may need to be suspended or terminated depending on how long you work and how much you earn (https://www.ssa.gov/pubs/EN-05-10095.pdf). If that's the case, then you just need to make sure that you keep Social Security informed of your work and earnings so that they can suspend or terminate your benefits if necessary.

Best, Jerry