Rules differ from country to country, so the way you set up your event's finances and accounting system depends on where you live. You may set up a nonprofit. If you do so, do not call it anything related to TED, TEDx or TEDx[name]. You need to pick a separate name for your nonprofit. (You can also consider running your TEDx event through an existing non profit.)
How do I set up accounting and finances for my TEDx event?
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