An EIN is a nine-digit tax identification number the IRS issues to business entities. Think of it like a Social Security Number, but for your company instead of you personally.
For Pakistani and NRP founders, this number is the difference between receiving USD from a US client today and explaining to that client why your US account still isn't set up. Every day without an EIN is a day your entity sits idle. That's real money and real time.
Worth noting: even single-member LLCs with zero employees and no current revenue need an EIN if they're foreign-owned. The IRS requires it for entity identification at the federal level, full stop.