You need to sign in to a web account.

If you have an (Individual) Business Account that's been set up for use with a specific business, you need to sign in to it before you can apply for license for a that business.

  Sign in

If you have never requested that an (Individual) Business Account be created for you, you'll need to do that first.

(After your (Individual) Business Account has been created, you can then request that it be added to a business.)

  Request That Website Account be Applied to a Business