Do prices include VAT?

Only applies to EU users:

The prices shown do not include tax, tax will be calculated on checkout, based on your location and VAT ID.

It is also written at the bottom of the invoice:

Company or private person outside EU (No Sujeto. Art. 17.Tres Ley 20/1991, de 7 de Junio.)

Company in EU (Inversión Sujeto Pasivo. Art. 19 Ley 20/1991, de 7 de Junio.)

Private person in EU (tax will be added in checkout and shown on invoice)