Transfer from funds or use cash?

[icantwaitforsummer]

In April is it better that I take 20k from my all world fund and transfer it over to my ISA, or put 20k from my cash savings that I will have accumulated by April?

That depends.

Cash. Your investment should grow over time, whereas cash won't. If you have more than you can transfer to an ISA you're still better off investing than not investing.

That's assuming it really is spare and you can afford not to touch it for the foreseeable.

Cash unless that will be all your cash and you would then have no emergency fund. First poster pretty much nailed as it entirely depends on your situation.

I don’t need it for anything it is the last little bit of inheritance that is just sitting there, as my ISA is full for this year.

So is it better sitting in a 4.6% savings account until April, or putting in to a fund for the next 8months, and then withdrawing it in April to put into the ISA?

If you have a date you want to take it out then cash now. Imagine if trump does something again next March and the market drops out, you would need to allow it time to recover again