Posted: Sun May 16, 2021 8:54pm
Hi Jill68,
When you say you've de-registered from Spanish "citizenship", do you mean "residency"?
The Spanish tax year runs from 1 January to 31 December; as you didn't leave Spain until the end of January 2020, it's possible that you have some residual tax liability in Spain for the first month of the 2020 tax year - for which you would need to complete the Modelo 100, income tax return, by the end of June 2021.
If you can provide more information, we may be able to offer a more accurate response.
Kind regards,
Kim