The head of the alliance can convert the moon into a bank station that collects taxes from alliance members and tribute from everyone else in the alliance. The desired taxes are set by the head, but the maximum percentage of tax is limited to the level of the bank divided by 2. The percentage of tribute is half of the bank's level. It can only be built by the head of the alliance and automatically becomes the center of the alliance network. As the alliance can withdraw resources from the bank no more than once a week, it is a tidbit for the enemies.

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Each level of the orbital bank increases the structure of the satellite by 100%. The owner of such satellite cannot destroy the building. The bank cannot be destroyed by nuclear weapons or Lexx. A bank orbital station can only be destroyed by destroying the satellite itself. In this case, 66% of the resources accumulated in the bank will fall into debris. Points for constructions on this object are not taken into account by statistics.
The Planetary Bank could be destroyed in a normal battle on the planet. When a planetary bank is destroyed, all the accumulated resources fall on the planet and 66% of them are removed by attacker. You can destroy a bank on your own in 3 days. Technologies of structure improvement increase the strength of buildings as well as with the construction bank levels its shield grows (250 000 base + 100% with each level).

Capitalization
Bank is able to profit from accumulated resources at the rate of 0.1% per week. For example, in a month the bank will increase the amount of metal by 0.4%.