The Earth Party will never tax anyone. Money taken under threat is force, and the Party has no access to force. Anything it wants to build must be funded voluntarily.
That follows from the principle at the heart of the Blueprint: force and betterment are never held by the same hand. The body that may use force, the Protectorate, may do nothing but protect the Law. The body that works to improve life may use nothing but persuasion and consent.
So government stays small by its nature. It makes no law, because law can't be made, only discovered. (The Republic of the Earth.) Each level decides only what belongs to its own scale: what a village can decide, no city should decide for it.
In the meantime, the Take Back Your Rights Plan works to remove the rules of the legacy governments that have no rational basis at all, peacefully, one rule and one office at a time.