Currently, in the main cities, you will have access to a bank that will allow you to share items and gold between the characters in your account.
The banker will allow you to manage your gold with the following commands:
Additionally to this, there is a room accessible that will let you use a persistent storage chest to store items. Do not store gold here as it can glitch and not save properly.
The chest in this area is only accessible by you and the area is only accessible by you and created for you. Once you leave the area will be destroyed but the items in the chest will be saved. This is important, so do not drop anything on the floor as it won't be there once you come back.