Pues me temo que en el asunto del IVA, Liberto, la opinión mayoritaria no es la que comentas. Es lo que pasa con el Derecho, que no es una matemática cartesiana y puede llegar a haber tantas opiniones como abogados :-)

Si echáis un vistazo a este hilo https://bitcointalk.org/index.php?topic=66774.0 explican el asunto del IVA cobrando en bitcoins. El IVA se devenga, como dice la normativa, con la entrega de bienes o prestación de servicios, independientemente del método de pago. Pego la parte del post en que se ocupan de este asunto.

since Bitcoin is not considered a currency a purchase with bitcoins will be considered barter. In barter, one should look each transaction separately so that if e.g. a customer (private individual) buys a table from a company and pays with bitcoins these 2 transactions should be considered:

 1. The customer bought a table from the company
 2. The company bought some bitcoins from the customer

I the first transaction VAT is added by the company and recorded as output VAT. In the second transaction there is no VAT since the purchase is from a private individual. Later when the company wants to get rid of the bitcoins this will be considered a sale of bitcoins (regardless of whether they are exchanged for some currency or if something is bought using them) and then VAT should be added to the sale and recorded as output VAT.

Igualmente en https://en.bitcoin.it/wiki/Tax_compliance son de la misma opinión.

La única manera legal de vender sin IVA sería hacerlo a un residente de fuera de la Unión Europea

Saludos,