The UK Government has admitted it made an error in calculating how much six councils would receive for so-called Discretionary Housing Payments (DHP).
The payments, made by local authorities, are meant to help ease the problems being faced by people hit by the bedroom tax.
But an error by the Department of Work And Pensions means six Scottish council's are having to re-think their budgets.
A spokesman for Glasgow City Council said it is still unsure how the error will affect their budget and has passed the matter on to Cosla, the body which represents all of Scotland's councils.
He said: "We have been in discussions with Cosla on this matter as it affects other local authorities as well.
"We are unclear how this situation has arisen and we cannot say with any certainty at this stage how this will affect Glasgow.
"We are looking for clarification from the DWP as soon as possible."
Cosla's spokesman added: "Cosla is aware of the error in the DHP calculation for the six Scottish councils.
"Whilst this error is regrettable, the DWP has agreed to honour the allocation for 2013/14 for the councils affected.
"The six councils will however, need to revise their plans for 2014/15 and Cosla is working with the Scottish Government to look at ways to ease the impact on the affected councils.
"Evidence from councils indicates that DHP funding across all councils is woefully inadequate.
"Cosla has and will therefore continue to lobby hard for additional funding support to be provided more generally by DWP to allow councils to assist those who are most in need of financial assistance."
A DWP spokesman said: "No council will have any shortfall. We are making up the difference for councils who would have received less and letting authorities keep extra funds they wrongly received.
"In future years, councils will have the right allocation to support their residents who need extra help during the benefit reforms."
The other councils affected are Inverclyde, Argyll and Bute, Comhairle nan Eilean Siar (Western Isles), Dumfries and Galloway and Borders.
The mistake first came to light when Inverclyde Council announced it was facing a shortfall of nearly £118,000 over two years.
The Labour-run authority said it would be dipping into its reserves to cover the costs.