The company previously thought the charge would total $750 million at most.
For the current quarter, which ends June 30, the charges will total $1.2 billion and force the company to take a loss.
The companies are expected to take charges totaling $400 million to start the venture.
In all, the net charges totaled nearly $7 billion of the loss that year.
It took special charges totaling $325 million after taxes in the quarter.
Additional charges totaling $15 million will be spread across the last three quarters of the year.
In the period last year, one-time charges totaled 30 cents a share.
Apple will take charges totaling $250 million over the next three quarters to pay for the job cuts.
The pretax special charges in the most recent quarter totaled $184.8 million.
The size of the one-time charge has not been determined, but the company said the charge could total $155 million, or $3.90 a share.