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Change of details in the RETA (self-employed)

Retroactive registration: 60 days. After that, contributions are not recognised.

If you are self-employed in the RETA and need to change your contribution bracket/base by earnings, activity/IAE, address, mutual insurer or bank account, this is the procedure. You do it in Import@ss or by appointment at TGSS.

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Fuente oficial enlazada6 steps7 documents
Plazo
Immediate online (changes that affect contributions take effect on day 1 of the next month)
Coste
Free
Oficial
Fuente oficial

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  • Prepares your case file and documentation
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What the agency does

INSS / TGSS

  • Receives and reviews your application
  • Issues the resolution or official document

Guía completa

What you need at hand
  1. Cl@ve PIN/Permanente, certificado digital or DNIe. 2) NAF (your Social Security number). 3) Forecast of earnings if you're changing bracket. 4) IBAN if you change direct debit. 5) Modelo 036/037 if you change activity/IAE. 6) Mutua details and coverages if you touch that.
Documentation
  • DNI/NIE and NAF.
  • Modelo 036/037 (AEAT) if you modify activity, epígrafe IAE or tax address.
  • IBAN of an account in your name for the fee.
  • Forecast of annual net earnings (to choose bracket).
  • Mutua details and cese de actividad/contingencias if you will change them.
  • For the counter: TA.0521 filled in and signed.
Step by step
  1. Go to https://importass.seg-social.es/ and log into your Área personal.
  2. Menu Trabajo autónomo > Modifica tus datos. Choose what's relevant (bracket, activity/IAE, address, contact, mutua/coverages, account).
  3. Bracket by earnings: enter annual forecast, effective date (always day 1 of the next month) and sign. Save the receipt.
  4. Activity/IAE: file 036/037 at AEAT first; then in Import@ss enter epígrafe and CNAE and the date. Sign and save.
  5. Direct debit: enter IBAN (you as holder), confirm and download the receipt.
  6. Check in your area that the change appears and, if it affects contributions, check the payment next month.
  7. If you go in person: book cita at https://importass.seg-social.es/citas, bring DNI/NIE, TA.0521 and, if applicable, the 036/037.
Hacks that save you time
  • Do changes mid-month: you avoid the change slipping to the next month by hours.
  • Bracket changes: plan ahead, you have up to 6 per year. Don't waste them on panicked moves.
  • Always save the PDF receipt and the reference number. It saves you if something breaks.
  • If Import@ss fails, try Chrome/Edge on a PC and close other open sessions.
Common mistakes that can set you back
  • Changing activity at AEAT and forgetting to do it in RETA the same day.
  • Entering an IBAN where you aren't the holder: the direct debit won't be accepted and you'll get surcharges.
  • Assuming the mutua switches whenever you want: almost always only in annual windows.
  • Not checking the payment after changing bracket: adjustments and nasty surprises follow.
  • Trusting mobile only: the site sometimes breaks; use a computer if you see odd errors.
  1. 1.Go to Import@ss (https://importass.seg-social.es/) and access your Área personal with Cl@ve, certificado or DNIe.
  2. 2.Go to Trabajo autónomo > Modifica tus datos. Choose what you change: bracket by earnings, activity/IAE, address, contact, mutua/coverages or bank account.
  3. 3.If you change bracket by earnings: enter your annual forecast, set the effective date and sign. Download the receipt.
  4. 4.If you change activity/IAE: first file Modelo 036/037 at the AEAT (same day is ideal) and then enter the new epígrafe and CNAE in Import@ss with the effective date.
  5. 5.If you change the direct debit: enter the IBAN (an account in your name), confirm and save the receipt. Check the change in 'Domiciliaciones' in your area.
  6. 6.If you prefer in person: book an appointment at https://importass.seg-social.es/citas, bring DNI/NIE, the TA.0521 and, if applicable, a copy of the 036/037. They register the change and give you a receipt.
  • DNI/NIE and Social Security number (NAF)
  • Cl@ve PIN or Permanente, certificado digital or DNIe to log into Import@ss
  • Modelo 036 or 037 from the AEAT if you change activity/IAE heading or tax address
  • IBAN of the account (that you are the holder of) if you modify the direct debit
  • Forecast of annual net earnings to adjust the contribution bracket
  • Details of the mutua colaboradora and coverages (contingencias profesionales and cese de actividad), if you change mutua/coverages
  • If you go in person: form TA.0521 (Alta, baja o variación en el RETA) completed and signed

¿Qué necesito para completar Variación Datos RETA sin que me lo rechacen?

Variación Datos RETA es gratuito en INSS / TGSS y se puede presentar por cuenta propia. El punto que interrumpe el trámite es que hace falta Cl@ve activa, y si no está dada de alta el registro previo puede tardar días. Además, hay que aportar 5 documentos a lo largo de 4 pasos, y la sede rechaza el envío completo si un solo dato no coincide con el que consta en el registro. GovEasy reúne y comprueba los 5 documentos antes de tocar la sede, para que el envío no se rechace por un dato descuadrado, y si no tienes la identificación digital o la cita, un gestor colegiado del marketplace la gestiona y lo presenta por ti.

  • Cl@ve activa (PIN o permanente)
  • GovEasy (extensión + gestor colegiado)
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  1. Understand
  2. Prepare
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Your next step

1.Go to Import@ss (https://importass.seg-social.es/) and access your Área personal with Cl@ve, certificado or DNIe.

  • We validate documentation before submission
  • Your progress is saved: continue any time
  • We alert you about deadlines and status changes

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