Start here
Everything on this site is organised around one fact: kickboxing has no single rulebook. That sounds like trivia and it is the most practically useful thing a beginner can know, because the first real decision you make — which gym to walk into — is a decision about which code you will spend years learning.
First, find out which code your gym teaches
Ask directly: do you fight under K-1 rules, low-kick rules, American full contact, or Muay Thai? A good gym will answer immediately. The answer determines what you will be good at.
Under American full-contact rules nothing may be thrown below the waist, so you will never learn to check a leg kick — and you will find that out uncomfortably the first time you spar somewhere that permits them. Under K-1 rules you will learn knees but only a second of clinch. Under Muay Thai you will learn elbows and a clinch game you cannot use in most kickboxing promotions.
None of these is wrong. But they are different sports, and it is worth choosing on purpose rather than by postcode.
Learn four things properly before you learn forty badly
Stance and movement first — being balanced while moving is the foundation everything else sits on. Then the jab and cross. Then the lead round kick and the teep. That is the whole list for your first months, and it is deliberately short.
The fighters you admire have spent decades on approximately these four techniques. Nobody at the top of this sport uses many combinations; they use a handful, from both stances, at a speed that makes the choice invisible.
Three sessions a week beats six for two weeks
Motor learning consolidates between sessions rather than during them, so frequency and consistency matter more than intensity at this stage. The most common failure is going too hard in month one and stopping in month two.
Expect to feel uncoordinated for a while. Everyone does. The people who look natural in the gym have simply been there longer.
When to start sparring, and how hard
Light technical sparring can begin once you can hold a stance and defend simple attacks, often around two months in. Hard sparring should not.
There is no training benefit to being hit hard as a beginner that outweighs the cost, and a gym that puts new students into competitive sparring in their first month is telling you something about how it treats people. Ask about this before you join. A gym that names its sparring intensity out loud before each round — flow, technical, situational, competition — is a gym that has thought about it.
Buy almost nothing
Hand wraps, one pair of gloves, a mouthguard. Add shin guards when you start partner kick drills and a groin guard before any sparring. That is the complete list for ninety days.
Do not buy specialised gear for a code you have not chosen yet. Savate shoes are the legal striking surface in one sport and banned in every other one covered here, and competition gloves are usually specified by the promotion rather than by you.