WASHINGTON (AP) -- The struggling U.S. Postal Service on Thursday reported an annual loss of a record $15.9 billion and forecast more red ink in 2013, capping a tumultuous year in which it was forced to default on billions in payments to avert bankruptcy.
The financial losses for the fiscal year ending Sept. 30 were more than triple the $5.1 billion loss in the previous year. Having reached its borrowing limit, the mail agency is operating with little cash on hand, putting it at risk in the event of an unexpectedly large downturn in the economy.
"It's critical that Congress do its part and pass comprehensive legislation before they adjourn this year to move the Postal Service further down the path toward financial health," said Postmaster General Patrick Donahoe, calling the situation "our own postal fiscal cliff."
Much of the red ink in 2012 was due to mounting mandatory costs for future retiree health benefits, which made up $11.1 billion of the losses. Without that and other related labor expenses, the mail agency sustained an operating loss of $2.4 billion, lower than the previous year.
Donahoe said the post office has been able to reduce costs significantly by boosting worker productivity. But he said the mail agency has been hampered by congressional inaction on a postal overhaul bill that would allow it to eliminate Saturday mail delivery and reduce its $5 billion annual payment for future health benefits.
"We cannot sustain large los ses indefinitely. Major defaults are unsettling," said Donahoe, who made clear that the Postal Service would now be profitable had Congress acted earlier this year.
Earlier this year, the post office defaulted on two of the health prepayments for the first time in its history.
The Postal Service, an independent agency, does not receive tax money for its day-to-day operations but is subject to congressional control.
The Senate passed a postal bill in April that would have provided financial relief in part by reducing the annual health payments and providing a multibillion-dollar cash infusion, basically a refund of overpayments the Postal Service made to a federal pension fund. The House, however, remains stalled over its own legislation that would allow for aggressive cuts, including an immediate end to Saturday delivery.
Overall, the post office had operating revenue of $65.2 billion in fiscal 2012, down $500 million from the previous year. Expenses climbed to $81 billion, up from $70.6 billion, largely due to the health prepayments.
The post office also has been rocked by declining mail volume as people and businesses continue switching to email and other online options in place of letters and paper bills. The number of items mailed in the last year was 159.9 billion pieces, a 5 percent decrease. Much of the decline came in first-class mail.