Western Australian Numbered Acts (1) If the
Commissioner suspects on reasonable grounds that a tax liability exists, the
Commissioner may make an assessment on the basis of that suspicion and the
Commissioner’s estimate of the amount of the liability.
(2) If a tax liability
exists, but the Commissioner is not satisfied with the adequacy or reliability
of information available to make an assessment, the Commissioner may make an
assessment on the basis of the Commissioner’s estimate of the amount of
the liability.