AIB units, EBS and Haven, are to increase the interest rates they charge on certain variable rate mortgages.
All Haven variable rates will rise by 0.35%, bringing them to between 3.1% and 3.5%.
Haven's fixed rate mortgages will remain unchanged.
The increase will mean that a monthly repayment on a new €100,000 Haven variable rate mortgage for a private dwelling with a loan-to-value of 50-80% over a 25-year term will increase by €18.35 to €489.96.
It is the first time that Haven variable rates have increased since the European Central Bank began hiking rates last July.
The changes will take place from May 18.
The bank said that Haven will continue to offer lower green mortgage fixed rates to customers buying their home with an energy rating of B3 or higher.
Separately, EBS is increasing its variable rate for existing buy-to-let borrowers, also by 0.35% with the increase taking effect on the same date.
It had previously increased rates for variable mortgages on private dwellings and they will remain unchanged on this occasion.
Haven’s fixed mortgage rates will remain unchanged.
The change will result in a monthly repayment on an existing €100,000 EBS but to let variable rate mortgage over a 25-year term rise from €990.42 to €1,007.88.
AIB said EBS continues to offer a lower green mortgage fixed rate to customers buying their private dwelling home with an energy rating of B3 or higher.
The moves by the bank are the latest increases in rates in the market as lenders adjust to the changing environment.
