The Canada Revenue Agency has paid out another $5-million refund to a single taxpayer, this time to a B.C. businesswoman, despite what it now alleges was a bogus return that included "illogical" and "falsified information."

According to court records obtained by CBC's the fifth estate and Radio-Canada, the seven-figure refund was paid out last May to Teresa Wallace. The documents say she typically made $54,000 a year with her hemp and grain processing business in Silverton, 95 kilometres north of Nelson in the West Kootenay region.

Two months after releasing the funds, a CRA affidavit shows the agency believed it had made a huge mistake after realizing it had failed to examine the legitimacy of the requested refund — even though it had been red-flagged for manual review.

"Here we go again. I mean, how many times do you have to learn a lesson?" said a source familiar with the inner workings of the agency who was granted confidentiality because they are not authorized to discuss the case publicly.