The impasse in Japan's parliament has raised fears among investors that the world's third largest economy is being driven towards a "fiscal cliff".
"The government running out of money is not a story made up. It's a real threat," Finance Minister Jun Azumi told a news conference, making a last-ditch appeal for cooperation by opposition parties to pass the bill.
"Failing to pass the bill will give markets the impression that Japan's fiscal management rests on shaky ground," he said.
Unless the bill clears the current parliamentary session that ends next week, the government will start suspending or reducing some state spending to avoid running out of money for as long as possible, the finance ministry said.
Noda's ruling Democratic Party passed the deficit-financing bill through the lower house on Tuesday. But the opposition boycotted the vote, signalling the bill has little chance of clearing the opposition-controlled upper house.
Under the proposed contingency for suspending some spending, the finance ministry said government bond redemptions and interest payments on outstanding debt would not be affected as they will be made in full using reserves set aside for this purpose.
All state spending will be targeted, except for those that will severely effect public livelihood such as police, national security and disaster relief.
Subsidies to local governments and state-run universities will be cut by half from the originally planned amount until the bill passes parliament, the finance ministry said.
That may affect ¥4.1 trillion ($64.9 billion) in payment to local governments expected and may potentially disrupt money market flows, if the shortfall in disbursements is big.
In an attempt to ease the strain on markets, the Bank of Japan offered to supply a combined ¥2.4 trillion of one-month and four-month funds starting next Tuesday (local time), of which ¥1.9 trillion was taken up.
That was the biggest amount offered on a single day under the central bank's asset-buying and loan programme since it was put in place in October 2010.
The upper house has passed a censure motion against Noda, piling more pressure on him to make good on his promise earlier this month to call an election to parliament's lower house.
Several ruling party and opposition lawmakers have suggested that Noda would probably wait out the stalemate until the current parliament session ends on Sept. 8 and call a snap vote during an extra session in October to secure the deficit financing bill's passage.
The term "fiscal cliff" is commonly associated with around $500 billion in expiring U.S. tax cuts and spending cuts that could kick in automatically next year, triggering a "significant recession", according to the Congressional Budget Office.
