interest rates ISA/SAVING Acconts

Rabbit53

Can anyone explain why the interest on an ISA is always lower than an ordinary savings account.  For example I year fixed rate ISA 1.1%.  Same bank, I year fixed rate savings account 1.4%.    OK, I know the ISA is tax free but why would that affect the rate as the banks do not deduct tax on any of them.  I also understand that the banks have to report the tax to HMRC but that is mainly for the Fixed account.   Thanks.  

Ultrasonic

You'd be better asking this question in the savings section of the forum.

Rabbit53

Thank you.  I saw my error after posting the question and have put it the savings section as well.