Modelo 210 obligation for Polish residents
If you spend fewer than 183 days in Spain and your tax centre is in Poland, you are a non-resident for Spanish IRNR purposes. You must submit Modelo 210 for each property: imputed income when not renting, rental income declarations when letting, and capital gains on sale. AEAT does not send reminders — missing filings trigger surcharges from 5% to 20% plus interest.