"The decision of the High Court in Mason and Anor v The State of
NSW [1959] HCA 5; (1958-59) 102 CLR 108 dealt with a comparable circumstance
where the plaintiffs challenged the validity of a NSW road tax law
and sought to recover the moneys previously paid by them to the
State of NSW as money had and received. The High Court held the
NSW road tax law to be invalid and ordered the return of all money
paid by the plaintiffs. Payment of the moneys by the plaintiffs
was held to be involuntary because of the relevant NSW law's
onerous penalty provisions which, if it was a valid law, would
have threatened the viability of the plaintiffs' businesses, if
imposed to the extent possible.
Section 12A of the Sales Tax Procedure Act acknowledges the
application of common law recovery rights to circumstances not
covered by the Sales Tax Assessment Acts and Regulations. That
Section was enacted, following the decision of the High Court in
DFC of T v Ellis and Clark Ltd (1934) 52 CLR 111 to limit the
common law rights of citizens not party to the proceedings to
recover moneys paid by them in respect of second-hand goods, which
were held to be outside the ambit of the sales tax legislation.
Those paying 'tax' on second-hand goods at that time would have
needed to rely on common law recovery rights as Section 26 of the
Act would not have been applicable to them, their transactions
being beyond the scope of the sales tax law.
In recent times, the Courts have not tolerated well the retention
by Government organizations of moneys to which they were not
legally entitled.
For example, in the decision of the House of Lords in R v. Tower
Hamlets London Borough Council, Ex parte: Chetnik Developments Ltd
(1988) 2 WLR 654, Lord Bridge (with whom Lords Fraser, Brandon,
Ackner and Goff agreed) remarked at p 664 that:-
'...it emerges from these authorities that the retention of
moneys known to have been paid under a mistake of law...is
not regarded by the courts as a 'high-minded thing' to do,
but rather as a 'shabby thing' or a 'dirty trick' and hence
is a course which the court will not allow one of its own
officers, such as a trustee in bankruptcy, to take.'
This decision was quoted with approval in the unreported decision
of Justice Davies of the Federal Court in The Collector of Customs
v. LNC (Wholesale) Pty Limited nos G1444 and 1445 of 1988,
judgment handed down on November 21, 1989 (copy enclosed)."