How Long After Accutane Can I Get a Salicylic Gel Peel?

I suggest you wait at least 6 months before you consider any procedure that affects the superficial layers of skin including light chemical peels and laser resurfacing procedures. Although sal acid peels are among the lighter peels, if done too soon after discontinuation of accutane, you place yourself at increased risk of scarring.
Good luck.

I would recommend waiting at least a year after finishing Accutane before considering any kind of resurfacing treatment. Peels, laser treatments, and dermabrasion are all types of skin resurfacing, so I would wait a year to prevent scarring.

After Accutane treatments you should wait at least 6 months before undergoing elective surgical treatments.  Gives the proposed peel which will burn your skin, you might be well advised to wait a full year.