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.

Sources and limits

This page is for orientation 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 a narrow browser-local draft preview where supported. You remain responsible for checking official sources, getting professional advice when needed, and keeping customer-controlled submission records.

Common risk

A 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.