Plain English: annual income tax return
Definition
Filing is not required solely because someone is tax-resident: each year's rules set income thresholds and also identify groups that must file regardless of amount. AEAT's Renta services can incorporate tax data, but the taxpayer must check, complete, and correct that information before submission. The approved form, campaign dates, and direct-debit cutoff change by tax year, so use the current Modelo 100 procedure and annual filing guidance.
- Check the filing rules for the exact tax year and all income types before deciding no return is required.
- Review prefilled tax data against your own records; it is not an approval of completeness.
- Confirm the campaign and payment dates on the current procedure page before submitting.
Example: a prefilled draft that omits foreign income still needs correction before you submit it.
Where this appears
Modelo 100 can appear in Spanish forms, appointment screens, official letters, PDF instructions, receipts, or portal status messages. This term usually appears in tax returns, invoices, payroll, or AEAT correspondence. Use the definition to understand the public concept, then verify the exact treatment on the official tax source or your own notice.
Use the term as a clue, not the whole answer. A public definition can explain the usual meaning, but a personal document may change the deadline, office route, evidence required, or risk of ignoring the message.
What to check next
Match the office
Check whether the term belongs to AEAT, Seguridad Social, Policía Nacional, Extranjería, city hall, DGT, health services, a bank, or another provider.
Find the source of truth
Use the official source, related guide, or related glossary terms before paying a fee, booking a cita, submitting a form, or responding to a notice.
Keep personal decisions inside Ask Guiri
If this term appears in your own PDF, screenshot, letter, rejection, fine, or deadline, the surrounding text matters. That case-specific reading should happen inside Ask Guiri.