Verify the notice and record the requested action
Plan around the deadline in your actual noticeSave the complete notice and envelope. Look up its CP or LTR number on IRS.gov and confirm the tax form, year or period, questioned items, contact details, response method and due date. Not every IRS letter is an audit. If a message seems suspicious, use independently verified IRS contact information before sending records or money. Create a dated action list from the actual notice, not a generic thirty-day assumption.