/ɪˈliːɡəl ˈɪnˌkʌm/ – Phrase
Definition: thu nhập bất chính, thu nhập bất hợp pháp.
A more thorough explanation: Illegal income refers to money or financial gain obtained through activities that are prohibited by law, such as criminal activities like drug trafficking, fraud, or money laundering. This type of income is not reported to tax authorities and is obtained through unlawful means.
Example: The defendant was charged with tax evasion for failing to report his illegal income from the sale of stolen goods.