This month we see no difference at all with the 2 year fixed rate tax free cash isa bonds, Coventry BS is still number 1 with an interest rate of 3.5%, Made a little mistake 2 year ISA from Aldemore should have been listed here: Aldermore ISA interest rates with an interest rate of 3.11%.
The best 2 year Tax Free cash ISA bonds:

#	Financial Institution	Rate	Term	Transfer in*	Min^ £
1	Coventry Building Society CS 2 Year Fixed Rate ISA (9) 31.05.2012`	3.5%	2 Years	NO	5,100
2	Lloyds TSB Two Year Fixed Rate Cash ISA	3.1%	2 Years	YES	30,000+
3	Halifax Fixed Rate Halifax ISA Saver	3%	2 Years	YES	500
4	Kent Reliance Building Society limited edition direct cash ISA - fixed rate to 30 June 2012	3%	2 Years	YES	100
5	Newcastle Building Society Fixed Rate Options Bond (Issue 44)	2.95%	2 Years	YES	500

*The account lets you transfer your current ISA in. Read more about ISA transfers: ISA Transfers information.
^Minimum needed to get best interest rate.
`you have to invest the full ISA allowance of £5,100 into this fixed term ISA Bond.

Labels: 2 years, fixed rate, Interest Rates, ISA