How to say "这归功于你" in English?
1、It should be credited to you.
2、It's all your credit
are the both is correct?

Question

Answer

这次能取得胜利，这（全）归功于你

We couldn't won this time without you. 
You are credited with making us successful.

It's sort of compliments. When you want to thank someone for what he contributed to a achievement, especially when it couldn't be successful without him.

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Thanks to you。

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牛逼  6666666666
简直了

Answer

Thanks to you.
This is all thanks to you.