I have done several of these. you may want to get assistance or outsource this but here is how it is done, at least in Ohio

1. File with Secretary of state, setting up the non-profit corporation

2. Obtain an EIN

3. File Form 1023, online: https://www.irs.gov/charities-non-profits/applying-for-tax-exempt-status

Then annually

- File Form 990, 990-EZ or 990N

- In Ohio, there is also annual Ohio Attorney General Charitable Law filing