Poodle

I guess my input is more of a question than an answer... That being said I just filled out my dependency form for adding my veteran husband. I receive my rating above 30% in June of 2016 but just now filed for dependent benifits first, because I didn't know I could get them because he was a veteran as well. I was wondering if my date of marriage was many years before I filed a claim do I get backpay from June of 2016 or from When I did the claim. Thank you for your time