Are you are one of those retired residents in Spain getting income coming from your country of origin and think that due to that you pay your taxes there, you are free of submitting any income tax in Spain? If you are in this situation I must tell that you are not doing your things correct.
If you are tax resident in Spain, you will be liable to pay Spanish taxes on your income and assets and will need to file a Spanish tax return.
One thing that Im frequently asked relates to tax residency. People living in Spain think that because they are paying their taxes back in their countries of origin, they are in peace with the tax office in Spain, but this is not truth..
You can only be treated as tax resident in one country or another, and due to this you will just pay your income tax just in one country.