The basic unit of legal tender in the Imperium is the Imperial credit. Individual
worlds may issue their own currencies, and those currencies may or may not
be acceptable on other worlds. Similarly, corporations and megacorporations may issue scrip,
and its acceptance outside of the corporate environment is a matter of conjecture.
But Imperial credits are accepted everywhere in the Imperium and in many
locations outside of it.
For very large amounts of money, the megacredit (often abbreviated MCr)
represents a total of one million credits. Less commonly used is the
kilocredit (abbreviated kCr) which represents a total of one thousand credits.
Imperial credits are almost impossible to counterfeit because of their
unique method of manufacture. Plastic fibers are combined under high temperature
and pressure and extruded as a rectangular bundle of great length. The different
colored fibers form the pattern of the bill. It is not printed on but actually
made a part of the structure of the note. The bundle is sliced to paper
thinness, and a 14-digit alphanumeric (letter/number combination) is added
for uniqueness. Credit bills are issued in 10, 20, 50, 100, 500, 1000, and
10,000 credit denominations. Plastic coins, manufactured in a similar manner
in various shapes, are issued in quarter, half, one, and five credit denominations.
Imperial credits can be bulky in large enough quantities. Bills measure
75 millimeters x 125 millimeters; 1000 bills stand 50 millimeters high
and weigh 500 grams.