Quick answer

Form SS-4 is the EIN application path; Form 8822-B is the usual IRS business address, location, or responsible-party update path after an EIN exists. Tax Paperwork does not decide control, nominee, ownership, merger, dissolution, or authority disputes.

Source and advice boundary

This page is education-only and not tax, legal, accounting, filing, payment, mailing, faxing, upload, confirmation, or representation advice. IRS.gov and current official instructions control Form 8822-B mechanics.

What to check next

Use current IRS Form SS-4, Form 8822-B, and responsible-party sources to separate new EIN facts from post-EIN update facts before preparing any draft.

Tax Paperwork can help organize public-preview draft context for some narrow workflows, but the user remains responsible for official-source review, professional advice when needed, and customer-controlled submission records.

Common risk

The common mistake is treating a draft, checklist, payment receipt, upload receipt, mailing receipt, or third-party summary as IRS confirmation. Keep records, but verify official channel rules and follow-up through IRS.gov, official correspondence, or qualified professional help.

Official source starting points

Last updated June 24, 2026.