"helpful for you" or "helpful to you"

Solution 1:

"Helpful to you" is correct if you only mean that something is helpful to somebody. It really depends on the context.

Dictionaries give these examples:

1) helpful to do something

----It's very helpful to bring a dictionary in my English class.

2) helpful for/in doing something

----Reading a lot of books is helpful for writing your own books.

3) helpful for someone to do something

----It's helpful for me to take a bus instead of the subway.

4) helpful to someone

----The movie, "Frozen," is helpful to children because it gives true love another meaning.

I hope this will help you. Good day! :)