A revenue officer is an IRS field collection employee. Revenue officers can file liens and levy property after the required notices. If one shows up, how you respond matters.
What to do
Be polite. Get the officer's name and contact information. Do not guess at numbers. Tell the officer you will have a representative contact them, and then follow through.
Know who you are talking to
A revenue officer is not a special agent. A special agent carries a badge and investigates crimes, and should give you a rights statement. If the person at your door identifies as a special agent with IRS Criminal Investigation, read special agents at your door and stop talking.
Fraud indicators in collection
Revenue officers are trained to look for fraud too. The IRS fraud manual, IRM 25.1.2, applies to collection employees as well as examiners.
General information only, not legal advice. Reading this page does not create an attorney-client relationship. Laws and IRS procedures change; the sources cited were reviewed on the date shown above.