529 and gift taxes
Given our daughter graduated college with excess 529 funds, my husband & I closed and transferred the remaining $25,000 from her 529 to our younger son's 529 account in 2021. Is that $25,000 now considered a gift (for gift tax purposes) to our son for 2021? He is in college now, and in 2021, we contributed $4000 to his 529 and pulled about $10,000 of 529 funds to pay for room and board as allowed. Do we need to file a gift tax return citing a gift of $39,000 (25,000+4,000+10,000)? (assuming the transfer is a gift, along with our annual contribution, and room & board) or would our gift be $29,000 because while paying room and board is considered a gift, those 529 funds used to pay room and board had already been counted earlier as a gift to him when first transferred into the 529?