Date: September 27, 2021 Contact: newsroom@ci.irs.gov Charles Windsor of Missouri was sentenced to 18 months in prison today. Additionally, Windsor was ordered to pay restitution in the amount of $304,296. The defendant had previously been found guilty during a four-day jury trial in May. The evidence during the trial proved Windsor was the owner of a St. Louis County company that produced mass mailers for its customers. During the years 2013 and 2014, large sums of money, which were business receipts, were deposited into Windsor's personal bank account. These funds were payments from only one client. All other business receipts from other company customers were deposited in Windsor's business account. Many of the sales which were deposited into Windsor's personal account were not reported on his tax returns. This methodology caused the gross receipts to be underreported on Windsor's tax documentation in years 2013 and 2014. Thus, Windsor assisted in the preparation of personal tax returns that were fraudulent. The Internal Revenue Service investigated this case which was prosecuted by Assistant United States Attorney Anthony Box.