The figures are contained in the public broadcaster's annual report, to be published on July 3. According to reports, it will show the cost of BBC One is £1.4bn, nearly £600m more than it reported last year.
In the company's previous annual figures, spending on the channel was reported as £840m but on a revised basis this figure would have been £1.295bn.
The BBC Trust has included costs of news-gathering, marketing and other overheads in the BBC One budget for the first time.