You can find the CP or LTR number on the right corner of the letter. For questions about a specific Notice of Federal Tax Lien, contact the Centralized Lien Operation or Collection Advisory Group as directed above.Please fill out this form and let us know how we can be of service. The State of New York has attempted to collect the overdue above debt which has not been paid. This scheme involves a letter threatening an IRS lien or levy. The scammer mails the letter to a taxpayer. Payoff letter and payment must be made at closing. Find out how much you'll pay in New York state income taxes given your annual income. Customize using your filing status, deductions, exemptions and more. "IRS Private Letter Ruling Causes.