Here is a warning from the Oneonta Police Department:

With tax day just passing, the City of Oneonta Police Department has received reports from citizens regarding phone calls being received stating they are behind or in trouble with the Internal Revenue Service. In general these typos of calls are not authorized by the IRS and can be classified as a scam. Do not offer any personal or financial information to anyone over the telephone with out first being absolutely certain who is on the line. The IRS does not collect funds by telephone transaction. If you receive a call similar, hangup immediately and do not give any personal information.