Longtime MMA promoter and manager Monte Cox was today sentenced to three months’ prison time and one year of probation on a single federal charge of filing a false tax return.

A clerk for the U.S. District Court in Davenport, Iowa, confirmed the sentence to MMAjunkie. Cox is also be required to pay a special assessment of $100. He will self-report to prison – likely a minimum-security facility – at a to-be-determined date.

Cox pled guilty to the charge this past October and was due in court in February before the case was delayed to July. He faced up to three years in prison for allegedly under-reporting income from his management and promotion businesses over a four-year period.

According to the government, Cox under-reported his income by $1,109,197 between 2007 and 2010. He denied wrongdoing, but struck a plea bargain (read it here) that requires him to pay the IRS.

“I think a lot of people think I didn’t pay any taxes, when in reality, I paid $300,000 for those years,” he previously told MMAjunkie. “(The IRS is) just saying that I needed to pay more.”

The industry veteran declined comment on the sentence when reached today by MMAjunkie. Cox owns the Extreme Challenge MMA promotion in Iowa and manages UFC heavyweight Ben Rothwell. He is also the former manager of current welterweight champ Robbie Lawler, among others.