Tax period to which income is attributable
Regulation: Article 100.7 LIS
The allocation of positive income in the tax base will be carried out in the tax period that includes the day on which the non-resident entity in Spanish territory has concluded its fiscal year which, for these purposes, It cannot be understood to last longer than twelve months.
In the case of permanent establishments , the imputation will be made in the tax period in which the income is obtained.