Some tax protesters argue that filing of Federal income tax returns or payment of taxes is " voluntary " ( in the sense of " not a legal obligation " ) based on language in the text of numerous court cases, such as the following : " Our system of taxation is based upon voluntary assessment and payment, not upon distraint " ( from the U . S . Supreme Court case of " Flora v . United States " .)
42.
On January 10, 2008, Edgardo Urieta, Sandiganbayan chief of the Sheriff and Security Services Office released the two-page report ( based on thirteen-page Banco de Oro to the Sandiganbayan Special Division ) which discovered intact due to the 2001 levy by BIR distraint-P 1.107 billion ( $ 1 = P 41 ) account of Joseph Estrada : P500 million-" promissory note and chattel mortgage "; 450 million shares of Waterfront Philippines valued at P 427.5 million; and 300 million shares of Wellex Industries worth P 84 million; cash deposits in a common trust fund investment account of P 95.76 million.
