Yes, this can be claimed as a tax deductible expense. However, you need to demonstrate that your parents and/or grandparents do not have sufficient income themselves and depend on your support. You will need to complete the attached form and have it certified in the country where your parents/grandparents live. Download the application here: Unterhaltserklaerung…Details
Our blog has basic information to get you started to understand tax items related to your situation.