The Finance Minister will meet the Central Bank's Governor today to try to push banks to cut their variable rate mortgages.
Michael Noonan's talks with Patrick Honohan come after claims borrowers are being charged far more than they should.
However, he could face some resistance after a Central Bank official warned it would be "undesirable" for the institution to control rates.
Ireland's top lenders are returning to profit and the ECB interest rates are at a record low.
All sides of the Dáil now believe it's time for the banks to offer some relief to variable rate mortgage borrowers.
Taoiseach Enda Kenny says expects the banks to "do better" to give customers lower interest rates.
Minister Noonan says the purpose of the meeting is to see if the banks can be encouraged to decrease variable rates for customers, who are paying up to 3-thousand euro more than the EU average.
However, the Central Bank's Chief Economist Gabriel Fagan has dampened expectations of putting pressure on the banks.
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