Birmingham Citizens Advice Bureau will use its reserves to keep going for another month after losing all its core funding.
Yvonne Davies, chief executive of the CAB, said the organisation needed about £50,000 a month in core funding to keep going, and that this could be funded from reserves only until the end of April.
The CAB, which is the largest in the country, was told in February that it was losing all of its £600,000 annual grant from Birmingham City Council, which paid all its core costs and allowed it to lever in another £2.4m to provide specialist advice services.
It warned that all five of the centres it runs were at risk of closure, putting 45 jobs on the line.
Davies told Third Sector that the organisation had put in bids to the government’s £100m Transition Fund and Birmingham City Council’s own transition pot, but could not get more than a month’s worth of funding from the local authority.
"We’ve been told more funding might be available in August, but we don’t expect it to come that quickly," she said. "We’ve not had much success attracting general funding from other sources."
She said that a decision would be made at the end of next month.
"We can limp through April, but we can’t limp through May," she said. "If we’ve not got a promise of more money, I’ll have to recommend to the trustees that we stop providing general services. We will carry on providing specialist advice, but there will be no walk-in centres to channel people to them."