Income declaration scheme: voluntary disclosure of undisclosed income attracts specified tax, surcharge and penalty under prescribed procedure. The Income Declaration Scheme, 2016 authorises voluntary declaration of undisclosed income to the Principal Commissioner or Commissioner in a prescribed form, prescribes who may sign declarations for different classes of declarants and allows authorised representatives for absent or incapacitated declarants. It prohibits multiple declarations in respect of the same income. The Chapter prescribes levy of tax on declared undisclosed income with an associated surcharge and penalty, excludes declared income from total income for assessment finality, disallows refunds of declared amounts, provides wealth tax exemption for disclosed assets, and grants rulemaking and difficulty removal powers to the Central Government and CBDT.