As I’m sure most people are aware Brexit has caused issues for many people. If you was resident in Italy before 31st December 2020, it is much easier for you than new people moving to Italy from the UK.
Vademecum For British citizens and their families residing in Italy before 31st December 2020
https://www.interno.gov.it/sites/default/files/2020-12/vademecum_brexit_en.pdf
The Withdrawal Agreement provides that UK nationals and their family members have the right to receive a new residence document in electronic format. The document states that it was issued based on the Withdrawal Agreement and allows you to exercise the rights recognized by the said Agreement.
The electronic residence document is valid for 5 years (bearing the title “residence card”) or 10 years (bearing the title “permanent residence card”) if the right of permanent residence is acquired (legal and uninterrupted residence in Italy for 5 years, including periods of stay before or after 31st December 2020).
The electronic residence document is issued by the Police Headquarters (Questura) of the province where the UK national resides. On the Questura website, a dedicated electronic channel allows you to book an appointment to submit your application.
UK nationals registered in the population register (iscritti in anagrafe) by 31st December 2020, starting from 1st January 2021, are invited to report in person to the Immigration Office of the Police Headquarters (Questura)in the province of residence to request the electronic residence document.
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