BRIDGEPORT — A city man was sentenced Tuesday to serve four years in prison for preparing false tax returns, according to a news release from John Durham, U.S. Attorney for Connecticut.

Rolando Russell, 62, of Bridgeport, was sentenced to 50 months in federal prison, followed by one year of supervised release.

Court documents showed Russell prepared about 1,820 federal tax returns from 2013 to 2016 through a tax return preparation practice he ran in Bridgeport, Durham said. The returns claimed a total of about $11.26 million in refunds. Durham said the IRS issued about $10 million on those refunds.

An investigation showed many of the tax returns Russell prepared included false Schedule C forms — used for profit or loss from business. Durham said there were false un-reimbursed employee expenses and false charitable contribution on the forms.

Russell’s false filings led to at least $1.5 million in losses to the IRS, Durham said. The judge ordered Russell to pay restitution of $1,501,000.

Many of Russell’s clients who filed tax returns for the 2013 through 2016 tax years will need to have their filings amended, Durham said. IRS notices are being sent to impacted clients.

Russell pleaded guilty to two counts of aiding and assisting the filing of a false tax return on April 26, 2010.

He was released on a $100,000 bond and was ordered to report to prison on Oct. 16.