Congratulations. Every American household is on the hook for $668,621.

Congratulations. Every American household is on the hook for $668,621. That is what the average household now owes in federal debt combined with personal debt. Taxpayers owe an additional $55,000 from new government debt incurred in the last year alone. USA Today reported:

Taxpayers are on the hook for an extra $55,000 a household to cover rising federal commitments made just in the past year for retirement benefits, the national debt and other government promises, a USA TODAY analysis shows.

The 12% rise in red ink in 2008 stems from an explosion of federal borrowing during the recession, plus an aging population driving up the costs of Medicare and Social Security.

That's the biggest leap in the long-term burden on taxpayers since a Medicare prescription drug benefit was added in 2003.

The latest increase raises federal obligations to a record $546,668 per household in 2008, according to the USA TODAY analysis. That's quadruple what the average U.S. household owes for all mortgages, car loans, credit cards and other debt combined.

"We have a huge implicit mortgage on every household in America — except, unlike a real mortgage, it's not backed up by a house," says David Walker, former U.S. comptroller general, the government's top auditor.