Newcastle BS "CustomISA" calculator

david72

Newcastle Building Society surely deserve a small tip of the hat, and a wink and a smile, for their punningly-tiled (and possibly slightly gimmicky) "CustomISA" calculator, which lets you assign ISA contributions among as many of their ISA accounts as you like for different purposes (easy-access/limited-access/fixed-term, etc), and calculate how much interest you would earn.

I don't know whether this is just a continuation of a "portfolio ISA" setup that they possibly might have offered in previous years(?), or if they are being one of the (very?) few financial service providers to actually be capable of letting you open and fund multiple ISA accounts with themselves as part of the new ISA rules (hurrah, if so), but it is a welcome way to highlight how you could split your savings for different purposes. 

(Their ISA interest rates aren't currently in the top table, but some of them aren't so far behind comparable accounts, and some people might find it useful or easier to have different ISAs for different purposes with the same provider.)