Assalamu Alaykum. I bought a flight ticket for my mom and gave some money in cash to my father. Both of them told me that they will pay me later, but I'm not sure if I will accept their money or give it to them as a gift .1) If I give it to them as a gift (the ticket and the cash) do I have to pay khums over it or is it counted as my yearly expenses? The amount of money I invested in those gifts are a lot higher than my usual expenses because I don't really spend a lot of money.2) If I give it to them as a loan, do I have to pay khums over it this year or when they pay me back?

1- it's count your yearly expense
2- pay khums when u get it back