Hi Is it possible to split an existing ISA value, of £10,000 into two investments of say £5000 each and invest in two...

The ISA rule states that previous years contributions can be partly transferred, but current years must be transferred in full.
So if your current years contribution is ?5000 or less, or the ?10000 is from previous years, you can do this.

What I am not sure is why you want to split this between 2 providers? Wouldn't it be easier to keep it together for easier management?

Hi,

I'm afraid you can only transform a cash ISA into an investment ISA, not vice-versa, so I'd suggest opening a cash ISA and an investment ISA this year and leaving your investment ISA from previous years as it is.

Hi,

Yep, you can transfer previous tax year's ISAs into as many ISAs as you want.

I generally say that the maximum number of cash ISAs a person can have is:

?Value of previous tax years' ISAs + 1 (the 1 being the current tax year).

And you can transfer as much of your cash ISA into an investment ISA as you want, if you so wish (though not vice versa).