Extract from the U.K. government’s website. Full information on pensions and benefits for those residing in the EU/EEA before December 31 and those arriving after January 1. 2021.
“UK State Pension
You can carry on receiving your UK State Pension if you move to live in the EU, EEA or Switzerland and you can still claim your UK State Pension from these countries.
Your UK State Pension will be increased each year in the EU in line with the rate paid in the UK.
You can also count relevant social security contributions made in EU countries to meet the qualifying conditions for a UK State Pension.
This guidance is for UK nationals, however these rules on the State Pension apply to everyone regardless of your nationality and regardless of when you moved. (Gov.UK Benefits and pensions for UK nationals in the EEA and Switzerland, 24 December 2020).”
Information to date on Social Security Coordination.
Relocating to Spain in the Future? Social Security Coordination