A fixed rate gives more certainty over your repayments for an agreed period, which can make budgeting easier, but changing or ending the mortgage early may involve restrictions or break costs. A variable rate can move up or down as the lender changes its pricing, so repayments may be less predictable but you may have more flexibility. The better option depends on your finances, how long you expect to keep the mortgage and your tolerance for repayment changes. Compare the full terms with your lender and check current information with the Central Bank of Ireland or a regulated mortgage adviser.