A revenue officer assignment puts a trained federal collector on your case personally - and the relationship runs on a defined set of authorities and rights. Knowing exactly where the lines sit is the difference between a managed case and a record built from your own unguarded answers.
What You May Refuse
You are not required to answer questions on your doorstep, at your business counter, or anywhere else without preparation - confirm identity, take the card, state that a representative will make contact, and stop. You are not required to admit anyone into your home; absent a court order, entry runs on your consent. And once you invoke representation, questioning is supposed to stop: the officer deals with counsel after the power of attorney posts, and the contact rules protect you. None of this is obstruction - officers work with represented taxpayers constantly, and procedure is their native language.
What You Must Eventually Do
The officer holds real authority: deadlines for missing returns and financial statements are enforceable, and blown ones convert directly into levies the file already justifies. Summons power backs document demands. So the rights strategy is never silence forever - it is silence at the door, then a managed response: deadlines met, the Form 433 built deliberately because it sets your payment and asset exposure for years, returns filed in a sprint, and every communication routed through counsel on the record.
The Investigation Inside the Investigation
In business cases, a second proceeding runs alongside: the trust fund investigation identifying who gets personally assessed for withheld payroll taxes - built from bank records and the Form 4180 interview that nobody should sit for unprepared. The interview-prep procedure has its own chapter on this site. The summary right worth memorizing: you are entitled to representation at every step, the officer expects experienced taxpayers to use it, and the cases that end well are the ones where counsel arrived before the first deadline, not after the first levy. If the card is in your door, that is today's call.