VANCOUVER - Two brothers have been sentenced to more than four years each in prison for what a British Columbia judge says was "industrial scale" tax fraud.

Vancouver residents Fareed Raza and Saheem Raza were both found guilty of fraud over $5,000 in December 2015 for issuing fake donation receipts in exchange for cash donations that were not passed on to charity.

The court found that Fareed, who is 42, and 35-year-old Saheem prepared their clients' taxes and issued false receipts worth more than the amount of money the clients provided.

When the taxpayers were audited by the Canada Revenue Agency, the Razas issued letters confirming the donations.

B.C. Supreme Court Justice Elliott Myers says in a sentencing decision released Tuesday that the Razas issued more than 1,700 false donation claims and defrauded the federal and provincial governments of about $4.9 million in taxes between December 2002 and June 2011.

Myers says in his decision that the fraud was "significant" and "on an industrial scale," and he sentenced each of the brothers to 51 months in prison.