Edit: Please vote the options so that we can decide which tag to keep
If we were to merge those, I prefer financial-literacy.
The other option is to use financial-education
I think the meanings are different, as literacy is the end result of education. But, unless I am not looking correctly, no questions have either tag, so this discussion my be moot.
Edit - I'll look more to see what post have those tags, not sure what went wrong. I get to https://money.stackexchange.com/questions/tagged/financial-education which doesn't show any posts.
Edit - Now that I see the questions, I agree, the distinction is too subtle, these two tags should be merged. I'll put my vote in for financial-literacy.