Wishing you a very happy birthday brother-in-law.

How to say happy birthday to my brother in law. Once I got married I have found that out myself. It is an absolute honor to have you as a part of our family. Our family get-togethers have gotten a lot more entertaining since you joined the family.

Watching you and my sister interact always makes me so happy. You may not be a blood relative to me but you will always be part of the family to us. Happy birthday to the best brother-in-law.

Happy birthday little brother. Throw away the word in-law. I love the way you both care about each other so much.

Wishing you a very happy birthday. Happy birthday to you my brother in law. Love you so much.

My brother-in-law you are a true surprise in my life. You my extended brother. I was not expecting you to be as accepting and cool as you were but I cannot thank you enough.

Happy birthday dear brother in law. Happy Birthday to the best Brother-in-law in the whole wide world. This will remind him of the bond that you share and will go a long way in making the birthday card a bit more special.