The Income Tax Return, or Modelo 100, is the document through which individuals report all their income, expenses, and personal and family circumstances to the Spanish Tax Agency for the year.
Its purpose is to determine whether you have paid more or less tax than you should have during the previous fiscal year (from January to December) and, as a result, whether your return results in a refund (the Tax Agency gives you money back) or an amount due (you must pay the difference).
It includes income earned as an employee or self-employed worker, savings income, grants or subsidies received, as well as applicable deductions and reductions depending on your personal situation (such as having children or dependants, housing expenses, etc.).
What income must I include?
You must declare all income received during the year, including:
- Salaries and wages from employment in Spain
- Income as a self-employed worker or from economic activities in Spain
- Capital income: bank interest, dividends, rental income, etc.
- Public subsidies, grants, or benefits
- Other income such as capital gains (sale of assets, investments, etc.)
- Income obtained abroad: salary or fees for work performed abroad, interest, dividends from foreign accounts… For more information, check our FAQ on foreign income.