Yes, it hurts. How much depends on many factors.
There are supplements that can reduce the pain, Quite a few of them if you are skilled in homeopathics and herbs. They tend to work best when taken 2 weeks to 3 days before laser tattoo removal and continue for 5 days after. Numbing cream is also an option, but needs time to penetrate. The most important thing that you have control over is the ability to relax. If you can relax into the pain, its intensity diminishes.
Expect the worst pain, and whay you feel will be less than you were prepared for.
Most people say “it was not as bad as they feared”.