If I transfer my character from Xbox 360 to XBone will my GTA money in my 'cash' section transfer to my Xbox One character?
On the Rockstar website regarding transfers you can find this:
"All earned in-game money will transfer. Purchased in-game money that has not yet been spend will only transfer within a same console family (e.g.Xbox 360 to Xbox One)"
I'm pretty sure this includes cash.
But even though I recommend putting all your cash on your bank account before transferring, 'just in case' especially when you have a lot of cash.