Still adrift? Here’s a minimalist roadmap: SSN? Check your card or W-2. ITIN? Look for IRS notice CP565. EIN? Check your business formation papers or IRS confirmation letter. If all else fails, call the IRS—they’re surprisingly friendly if you catch them during off-peak hours (Wednesday mornings, after 10 AM).
And for the love of spreadsheets, never share your TIN on a public call or unencrypted email. Scammers love TINs like moths love porch lights. Stay savvy.
