Welcome to the boards
In the abstract, yes, Xanax in any dose is potentially habit forming / addictive. The risk increases with length of time using it, number of doses per day, size of dose, etc. Small doses prescribed for short periods of time are generally not severely dangerous with regard to precipitating addiction, but there is no magic cut-off of a non-addictive dose/time/regimen. Generally the "least addictive" benzodiazepine (the class of drugs Xanax belongs to) is considered to be Klonopin. When concerned with the possibility of addiction, most physicians I have known prefer Klonopin in low doses over short times.
Xanax is one of the most addictive benzodiazepines because it is considered a highly potent benzodiazepine, as well as a short acting one. The combination of short acting and potent are a key combination in precipitating addiction. I was first given Xanax 1 mg in my physicians office when I was 16 after my heart rate went up to 240 and my SpO2 (oxygen) went down to 78% from 99% during a panic attack in the waiting room. He prescribed two more for errant panic attacks, as well as meds for heart, bp, etc. Within 6 months I had gotten him to give me 30 Xanax 1 mg a month as well as 30 Valium 5 mg. At this point I was hooked, and to this day I am dependent on either Xanax, Valium, or Klonopin - though I long ago took control of my misuse and now take them for legitimate general / social anxiety as well as thanatophobia (debilitating fear of death).
My advice though would be if you stick to the lowest dose and the fewest doses per day you can manage, then stop taking them the minute you are able, you probably should be ok. For the past 4 years up until a few months ago I took Klonopin 1 mg two - three times daily and I wasn't and am not clinically addicted in the true definition of the word (if I stop taking them I don't experience benzodiazepine withdrawal syndrome, nor do I experience cravings or exhibit drug seeking behavior).