Selling a Property in Portugal The first step to take when you actually decide to sell your property in Portugal is to clear all your civic municipal dues and municipal council taxes as your property will risk being auctioned to the highest bidder if you elude these taxes. If you live in an apartment; you may have to pay service charges and final maintenance. It is also essential to pay all utility arrears in full before the sale; this includes; telephone, electricity, water, gas, insurance and other bills.