Government departments other than Justice are being asked to come up with half of the money for an increase in Garda pay.

Up to €25m will have to be cut from their budgets in order to pay for the Labour Court deal.

When the Labour Court proposals were first issued, the Department of Justice said the extra money needed to cover the cost would come from within its own budget.

However, it has now been agreed that the bill will be split between the Department of Justice, and the rest of the public service.

Under the revised 2017 Budget to be published tomorrow, €25m will be reassigned to the Garda pay budget from elsewhere within the Department of Justice.

But the other €25m will be taken off the other Departments of State, meaning all of them will have to scale back in other areas in order to meet the extra pay bill arising from the Labour Court deal.

The ongoing cost from 2018 onwards will be met from within the Justice budget alone.