On the Knights of Noromath server, many areas have storage which is persistent and stores items across resets. For storing gold, there is a banking system and several NPCs able to accept deposits on behalf of players. Taxes are automatically collected by these NPCs, as well.
Most of the very best persistent storage opportunities are within the area castles. Those with a base of operations or who establish themselves in an area may also receive persistent storage set up if deemed appropriate.