According to CoinDesk, the US Internal Revenue Service (IRS) announced on Friday that it has begun writing letters to taxpayers, suggesting that they pay back any taxes that may be outstanding, or submit a revised return for the assets they hold. In a newsletter, the agency said it began mailing so-called "educational letters" from last week. According to the statement, there are three versions of this letter. The US Internal Revenue Service also said that by the end of this month, it would issue such letters to “more than 10,000 taxpayers” and added that “the names of these taxpayers were obtained through various compliance efforts being carried out by the IRS”. Chuck Rettig, head of the US Internal Revenue Service (IRS), said in a statement: "taxpayers should take these letters seriously, review their tax filings, and modify past tax returns when appropriate. Single, reimbursement of taxes, interest and fines."