don't be surprised if when you come off fixed that there are no decent ECB tracking mortgage rates available - they are just too expensive for Banks to hedge/fund. It was all fine when ECB was at 2.00% for 2 years - stability, but not anymore, and unlikely to return to those times. You may find that fixed will give you the certainty you want, with a minimal margin. While not suggesting you go with them, NIB's internet site has an LTV calculator where the advanced option allows you to see the underlying Fixed Rate "cost of funds", which is a bit like the bank's cost of borrowing to lend to you for the fixed. NIB call it a reference rate, and it changes weekly on a monday
Just watch this reference rate week to week to see the development in rates. Currently falling as ECB expected to cut rates...
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