I've had mine for a month, touch up free and its still looks fresh. My friend didn't have his touched up and now, after a year, its COMPLETELY gone. My tattoo guy, has had his for 20 years.
I've head of people's fading completely away the day after they got it.
It all depends on your body.
Oh, and by the way, it doesn't hurt anywhere near as bad as people say its does.
I have many tattoos, including my inner lip