@WernR - from my understanding of aid money it _could_ be immediate aid, as in famine aid, or development aid, as in infrastructural help.
since both concepts are possible, perhaps Hilfsgelder is neutral enough to cover both meanings (instead of Nothilfe for the one, and Entwicklungshilfe for the other)

Im Deutschen scheint doch eine Transferleistung eher zwischen Staaten stattzufinden, wäre also aid money, während im Englischen transfer payments vom Staat an bedürftige Individuen geleistet werden (siehe Quelle oben).

"Development aid is distinguished from humanitarian aid as being aimed at alleviating poverty in the long term, rather than alleviating suffering in the short term (Foreign aid, on the other hand, includes both development aid and humanitarian aid." (Wikipedia, s.v. aid money)

Hier noch was zum Thema Entwicklungshilfe / Nothilfe