I am 63 and worked in the U.S for 12 years. I collect SSDI now for a long time. What happens to my income at age 65. I am a Canadian citizen

Hi. Nothing will change as a result of you turning age 65. When you reach full retirement age (FRA), which if you were born in 1958 would be age 66 & 8 months, your Social Security disability (SSDI) benefits will automatically convert to regular Social Security retirement benefits. However, your benefit rate will almost certainly remain the same after the conversion occurs.

Best, Jerry