Noun
Income that is not reported to a government in order to evade taxes.
Synonym: dirty money
(India) Money that is obtained illegally, especially that which circulates in the underworld. [from 19th c.]
Synonyms: dirty money, (US) boodle
Antonym: white money
In India, the government faces the issue of combating black money stashed overseas.
Most of India's 300 odd news channels are making losses and are dependent on dubious cross holding, black money and dodgy private equity investors, both foreign and Indian. Mohammad Hamid Ansari
Black money is so much a part of our white economy, a tumour in the centre of the brain - try to remove it and you kill the patient. Rohinton Mistry
Besides carrying a jail term of up to 10 years, the Black Money Act has provisions for a 120 per cent tax and penalty on undisclosed foreign assets and income. Source: Internet