The bike is ready. The kid is ready. Between them and the grid stands a stack of paperwork, and none of it is racing. Every series does it a little differently and every season changes something, so this is a process map rather than a form-by-form walkthrough — the shape of the job, so nothing surprises you in the week before round one.

Find the governing body first
Junior minimoto in Ontario runs under the series you are racing — the regional MiniSBK paddock and the national FIM MotoMini Canada grid we cover on this site each have their own membership and licensing requirements layered on the venue and sanctioning structure above them. Step one is always the same: find the current season's rulebook and licensing page for the series your rider will actually enter, and read it with a calendar open. The rulebook is where the truth lives; paddock folklore about what was needed three years ago is where September surprises come from. When the two disagree, the rulebook wins. Check it again a week before your first round.
The usual stack
The stack, in rough order, looks like this. A series or club membership for the family, bought once per season. A competition licence or racing membership for the rider — the class your kid races in, including any novice or beginner designation, usually changes both the requirements and the fee. A parental consent and acknowledgement-of-risk form, which for a minor is not optional anywhere and usually needs renewing each season. A medical form or medical declaration, occasionally requiring a doctor's signature depending on the class — the kind of thing that takes three weeks if you discover it in the parking lot, and ten minutes if you read the rulebook in February. And proof of identity or age, because kids' classes are age-gated and clerks do check.
Novice requirements
Most structures have a novice gate of some kind: a riding assessment, a school certificate, a supervised first event, or a signature from a series official who has watched your rider on track. The purpose is not bureaucracy — it is making sure a first-time rider can hold a line safely in traffic, and it is the same test in spirit whether the series runs it as a formal observation day or a first-practice check. Find out what your series requires for the novice step before you plan the season around its first round, because the calendar does not move for paperwork.
The habits that save seasons
Three habits and you never think about this again. Do it early: licence and membership processing is not instant, and the early-bird deadline is often the cheap one. Keep a folder — digital or physical — with memberships, consents, medicals, and the rulebook PDF from this season, and bring it to every round; the rider whose paperwork is provable walks through registration while others fill out forms in the rain. And re-check every season, every time, because this is exactly the layer that changes year to year. Paperwork before podiums. It is the only part of racing where being boring is the whole skill.