Almost $40,000 was spent by Brisbane City Council in an attempt to stop ratepayers fraudulently using waste vouchers, but it seems residents have found another way to beat the system.

The council is now reassessing if they will provide waste vouchers to ratepayers in the future.

On Friday, a search by Fairfax Media showed 41 listings of Brisbane City Council waste vouchers for sale on Gumtree.

Prices on the listings ranged from free, or $1 per voucher to $60 for three sheets of vouchers.