20Instruments and returns to include all relevant information

### 20 Instruments and returns to include all relevant information > > (1)  A taxpayer and any tax agent of the taxpayer must include in an instrument that is liable to tax or in a statement that is produced to the Commissioner together with the instrument before the payment of tax, all information necessary for a proper assessment of the tax liability of the taxpayer in respect of the instrument. > > > > Penalty:  In the case of – > > > > > > (a) a body corporate, a fine not exceeding 100 penalty units; or > > > > > > > (b) in any other case, a fine not exceeding 20 penalty units. > > > (2)  A taxpayer and any tax agent of the taxpayer must include in a return required to be lodged with the Commissioner under a taxation law, in addition to the information required under that taxation law, any further information necessary for a proper assessment of the tax liability of the taxpayer in respect of the return or the matters to which the return relates. > > > > Penalty:  In the case of – > > > > > > (a) a body corporate, a fine not exceeding 100 penalty units; or > > > > > > > (b) in any other case, a fine not exceeding 20 penalty units. > > > (3)  It is a defence in proceedings under this section – > > > > > > (a) for a taxpayer to prove that he or she reasonably relied on – > > > > > > > > > > (i) another person who was liable or required with the taxpayer to pay the tax or lodge the return; or > > > > > > > > > > > (ii) a tax agent (whether engaged by the taxpayer or that other person) – > > > > > > > > to ensure that the requirements of this section are satisfied; or > > > > > > > (b) for a tax agent to prove that he or she reasonably relied on information supplied by the taxpayer or by another person who was liable or required with the taxpayer to pay the tax or lodge the return.