Как видим, разные ИИ дают разные и порой совершенно противололожные ответы на этот вопрос.
Open AI
1. Obligation to keep your identification documents up to date
If you are a permanent resident (residencia de larga duración) in Spain, you do have a legal obligation to keep your personal data current with the immigration authorities (Oficina de Extranjería or Comisaría de Policía). This includes:
New passport details (number, issue date, expiry date)
Any changes in nationality, address, or civil status.
So yes — technically, you are supposed to inform Extranjería when your passport changes, not just at the next renewal.

2. In practice
However, in practice:
Many permanent residents simply wait until the next renewal of their TIE (tarjeta de residencia) to show the new passport, and the authorities usually accept that without penalty.
If you need to travel, register for something official, or renew your NIE certificate before then, it’s better to update your passport in the system first.

3. If you decide to update now
You can update your passport information by:
Making an appointment with Policía Nacional – Extranjería (cambio de datos en tarjeta de extranjero).
Bringing:
Your new passport and old passport (if available)
Your current TIE card
EX-17 form (if requested for data update)
A photocopy of everything
They will record the new passport number in your immigration file; your TIE remains valid until renewal.
Summary
Option Allowed? Notes
Update new passport now at Extranjería

Recommended (best practice) Keeps your records current. Useful if you travel or need official paperwork.
Wait until next renewal

Common practice (usually no issue) Acceptable if you don’t have urgent bureaucratic dealings before renewal.
So: you are supposed to inform them, but most people wait until renewal, and authorities generally accept that — as long as your residency remains valid and you can present both passports if asked.
Мне интересно, на практике, кто то уже получал новую 5 лтнюю тархету приходя в полицию сразу с новым паспортом?