Access to money - breaking Fixed Term v Instant Access?

Many Fixed Term accounts say that you can have access to your money before the Term ends, but there may be penalties and lost of interest for doing so. What are the normal penalties - it's hard to find anywhere in a bank's terms & conditions that gives exact figures.

How would I figure out:
If I had €100k savings but might need it at any time to buy a house, would it better to open a Fixed Term account @3.5%, but then take it out if it was needed and pay the interest penalties?

OR open an Instant Access Account @ 2.5%.

I keep sticking with the Instant Access Accounts, but the interest on them is considerably lower than the Fixed Terms.

It all depends on the bank. They all have different breakage clauses. Which bank are you looking at?

I was looking at PTSB and EBS in this instance.

Whatever information you get from your bank make sure they give this to you written. (specially if they say tehy dont charge you penalty fees)

Look at PTSB they have 50k+ 2 months fixed 3.75% AER. You might get better off having a bit of work but can avail of the current raising interest rates cause the banks are desperate for cash.