Same or similar entry in other lexica. The headword here is the gloss at epsiloniota 295.
The eisphora, though attested in several Greek states and also in the Ptolemaic empire (see in brief P.J. Rhodes in OCD(4) s.v.), is known in most detail as a property tax from classical Athens. Fawcett [below] surveys recent work both on this and on the Athenian taxation system as a whole.