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Important thing here is that events working with us can offer tax deductions to donors through our 501(c)(3) tax status. Most sponsors for high school events want to see some sort of non-profit status when giving and it takes over a year and thousands of dollars to create a new entity in the US. With Hack Club Bank, they can get set up under our parent entity in under a week.
"takes over a year and thousands of dollars to create a new entity in the US" This is a very misleading statement. 4 years ago I setup a 501(c)3 non profit and was able to get state and federal recognition, as well as all licensing necessary handled in a 4 month period from start to finish for under $400. What it does take is persistence and patience.
I'm happy you were able to get your status so quickly. It took us about a year. The filing fee for the 1023 alone is $600.
The IRS has an overview of the expected timelines at https://www.irs.gov/charities-non-profits/charitable-organiz..., though they often get backlogged by months. The filing instructions for the 1023 are also a fun read: https://www.irs.gov/pub/irs-pdf/i1023.pdf