When searching for your dream home in Spain and your compare prices, be aware that the advertised prices are not end-prices. You always have to add on the Purchasing Tax.
There are different taxes and fees when buying a property in Spain, but the one that has the biggest impact on the final price is the Purchasing Tax. It is different from one autonomous region in Spain to the next and also depends on whether you buy a new build home from a builder or a resale property from a private seller.
When purchasing a new build you pay VAT (IVA, Impuestos de Valor Añadido) and when purchasing a resale you pay the so-called ITP (Impuesto de Transmisiones Patrimoniales).
In the Comunidad Valenciana and hence the Privince of Alicante, both taxes are 10% over the purchasing price right now. The ITP-Tax is paid on the completion day through the Notary’s office to the Inland Revenue (Hacienda), whereas the IVA is paid to the builder at every single stage-payment.
So always keep in mind that you have to add the respective purchasing tax to the asking price.