You do not always have to obtain an EIN when you start a business, but you may be required to get one, or there may be reasons you want one.
Snail Mail Fillable PDF: https://www.irs.gov/pub/irs-pdf/fss4.pdf
Applying online: https://www.irs.gov/businesses/small-businesses-self-employed/get-an-employer-identification-number
Do you need an EIN: https://www.irs.gov/businesses/employer-identification-number#whoneedsanein Need help doing this for your business?
Find a local bookkeeper or use our service: https://calendly.com/coeurbridge
If you prefer to learn by video: https://youtu.be/dOxmvkiww1k