YOU SAID:

My birthday is on the 27th of January every year since I was born in 2005

INTO JAPANESE

私の誕生日は、2005年に生まれてから毎年1月27日です。

BACK INTO ENGLISH

My birthday is January 27 every year since I was born in 2005.

INTO JAPANESE

2005年に生まれて以来、私の誕生日は毎年1月27日です。

BACK INTO ENGLISH

Since I was born in 2005, my birthday is January 27 every year.

INTO JAPANESE

2005年に生まれたので、私の誕生日は毎年1月27日です。

BACK INTO ENGLISH

Since I was born in 2005, my birthday is January 27 every year.