Membership is not required to participate in any of the activities of Kannon Do. There are two kinds of membership at Kannon Do: Signatory and Voting. Signatory members express their heartfelt connection to Kannon Do and an affinity with its practice by signing the Membership Book on the altar. It is customary to have one or more members of Kannon Do witness the signing.

A voting member is a signatory member who additionally supports and strengthens the activities of Kannon Do through regular financial contributions totaling at least $360 in the previous year (See Financial Support.) Contributions do not have to be donated monthly; they can be made, e.g., in a one-time annual contribution if that is more convenient. Voting members are eligible to vote in the election of Kannon Do board members. In cases of financial hardship and special circumstance, the board may waive the financial contribution requirement, or arrange for payment in-kind, to enable the individual to be a voting member.