There seems to be a lot of confusion on the time that you need to spend in Spain while you still have your temporary residencia (when you have been legally registered as resident for less than 5 years), now that UK is not longer part of EU and the citizens are 3rd country citizens.
I have
compiled some information that might be helpful for you.
With regards to your residencia, if you got it under the Withdrawal
Agreement or before was a thing,it is called temporary because you are not
considered permanent resident until you have been legally registered in Spain
for 5 years, but the residencia you have gives the right to live in Spain
permanently.
Residencia is
thought for people that live here. In order to be able to renew your residencia
in 5 years time, you are supposed to spend in Spain at least 4 of the next 5
years.
This is the general rule for all 3rd country citizens.
They started
stamping passports in Jan 2021, so they will be able to start checking how long
you spend in Spain and how long you spend out of Spain. When you apply for the
permanent residencia in 5 years time you will have to produce current passport
and previous one (the one you have now) and they will count the days. If you
have not been in Spain for long enough they will not renew the residencia.
If they do not stamp the passport they will also register your entry in the country electronically, so it is the same.
The Withdrawal Agreement did not require physical presence in the host state (Spain in this case) at the end of the transition period – temporary absences that do not affect the right of residence and longer absences that do not affect the right of permanent residence are accepted.
Those protected
by the Withdrawal Agreement who have not yet acquired permanent residence
rights – if they have not lived in Spain for at least five years – will be
fully protected by the Withdrawal Agreement, and will be able to continue
residing in the host state (Spain) and acquire permanent residence rights in
the host state (Spain) after accumulating five years of residence.
Source:https://ec.europa.eu/info/relations-united-kingdom/eu-uk-withdrawal-agreement/citizens-rights_en
This takes you to our law: Real Decreto
557/2011, de 20 de abril, por el que se aprueba el Reglamento de la Ley
Orgánica 4/2000, sobre derechos y libertades de los extranjeros en España y su
integración social, tras su reforma por Ley Orgánica 2/2009, about the rights
and freedom for foreigners in Spain and their right to live here permanently
The article 148
of this law, which you can find in our Spanish National Gazzette, where our
laws are published officially:
https://www.boe.es/buscar/act.php?id=BOE-A-2011-7703
Article 148.
Assumptions.
1. Foreigners
who have resided legally and continuously in Spanish territory for five years
shall have the right to obtain a long-term residence permit.
Likewise,
foreigners who prove that they have resided continuously in the European Union
during that period, as holders of a Blue-EU Card, will have the right to obtain
said authorization, provided that in the two years immediately prior to the
application, said residence is has produced in Spanish territory.
2. The
continuity referred to in the previous section will not be affected by absences
from Spanish territory of up to six continuous months, provided that the sum of
these does not exceed the total of ten months within the five years referred to
in section 1, except that the corresponding departures had been made
irregularly.
In the event of
absences for work reasons, the continuation of residence will not be affected
by absences from Spanish territory of up to six continuous months, provided
that the sum of these does not exceed the total of one year within the required
five years.
In the case of requesting
a long-term residence permit based on the provisions of the second paragraph of
the previous section, the continuity of residence as a holder of a Blue-EU Card
will not be affected by absences from the European Union of up to twelve
continuous months, provided that the sum of these does not exceed the total of
eighteen months within the required five years of residence.
This means that
in the next 5 years you would only be allowed to be out of Spain a maximum of
18 months (if due to work), but no more than that.
Also, you can not spend out of Spain more than 6 months in any of the given years. This also means you will become fiscal resident in Spain, whether you would like it or not. You would need to speak with a financial advisor or accountant if you have not done so.
Have a good day!





























