Definition
What is an EIN (Employer Identification Number)?
EIN (Employer Identification Number) is a 9-digit number issued by the IRS to US business entities. It's the US tax ID — like a Social Security Number but for businesses. Required for tax filings, US bank accounts, hiring, contracts, payment processors.
Who needs it
Who needs an EIN?
Required for:
- All US corporations and partnerships
- Multi-member LLCs
- Single-member LLCs that hire employees or have foreign owner
- Any entity filing employment, excise, alcohol/tobacco/firearms tax returns
- Trusts, estates
- Required for US bank account, Stripe, payroll, IRS filings
How to get
How to get an EIN.
Process:
- Form your US entity first
- Complete Form SS-4
- If you have SSN: apply online (irs.gov/businesses/employer-id-numbers) — instant
- If no SSN: fax Form SS-4 to +1 855-641-6935 — 1-4 weeks
- Or call IRS Business & Specialty Tax Line: +1 267-941-1099 (international)
- Receive CP575 letter with EIN. Save it.
Cost
EIN cost.
- EIN itself is FREE — IRS does not charge
- Beware sites charging $200-500 for 'EIN service' — these resell IRS service
- BQP includes EIN in our $999 US incorporation package