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Registering with the tax office (Hacienda)Article 4 of 5 · 2 min read

Keeping your Hacienda details current after life changes

Explains which life changes you must tell the Spanish tax office about, where to report them, and how to change the bank account for refunds and direct debits. For anyone who has moved, married, had a child or changed bank.

Key rules

  • Marriage or birth: Report these in your Renta, not through a census update.
  • Basque Country and Navarra: Use your regional treasury's forms, not the national ones.

Marriage and births go in your Renta, not the census

You do not normally need to update your tax census after a marriage or a birth. You report these in your Renta return, where marital status, children and their dates of birth affect your allowances and whether you can file jointly.

The Renta draft may already show a spouse or child, because the tax office gets some family data from public records and from your earlier returns. It can miss recent changes, so check every family detail before you confirm. Children's NIFs are usually issued automatically.

Joint or separate filing:

  • Married couple: you choose each year between one joint Renta and two separate ones; joint or individual filing compares them.
  • Registered partner or unmarried partner: no joint Renta; each partner files separately and declares the children in their own return.

Changes you must report to the census

These changes go to the tax census (the tax office's register of who you are and where you live):

  • Tax address. Use modelo 030 within three months if you have no business activity; the self-employed and companies use modelo 036 or 037 within one month.
  • Name, identification data or legal representative: within one month of the change.
  • Starting, changing or stopping a business or professional activity, including VAT, IAE and withholding details. File before the activity starts; report later changes within one month.

If you have no business or professional activity, use modelo 030. If you are self-employed or run a business, use modelo 036 or 037. If you live in the Basque Country or Navarra, report the change to your regional treasury, with its forms, within the same deadlines.

Updating your bank details

A census update does not change your bank account. Where you give your IBAN depends on what the account is for:

  • Income tax refund. Enter the IBAN when you file the Renta. The account must be in your own name.
  • Direct debit. Give the IBAN when you file the return or form you are paying. You can set up or cancel the direct debit within the deadline for that payment.
  • Other cases. The tax agency's online office lets you register an account for refunds in some specific procedures.

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