Hi. I wanted to know what the sin is regarding a tattoo. Is a sin while you are getting the tattoo, or is it a sin every second you have a tattoo.

The sin is having the tattoo done. However, having the tattoo upon oneself is a constant reminder of the sin. Nonetheless, one is not required to have the tattoo removed. שו"ע יו"ד סי' קפ סע' ב, שו"ת מראה הבזק ח"המ סי' ע"ח, מאמר של הרב בקשי דורון תחומין כ"ב) )