The Spanish tax years runs from January to December, with tax returns for the previous year being submitted between April and June. As in previous years, the above message is doing the rounds, purportedly from the Agencia Tributaria advising about a refund of tax due. It asks for bank details to make the refund. f you have submitted your tax return and receive such a message, please note that it’s false. The tax authorities already have your information from the submitted tax return and will refund any monies due to the account whose details they hold. These messages are a scam timed to coincide with this period. Please don’t get caught out.