I’m a Nigerian living in Germany with German permanent residence. I have been married to my Polish wife for 2 years. She has my surname on all her documentation. We are living together as a married couple. Can we be allowed into the United Kingdom in February 2020 after the January 31st, 2020 official Brexit date?
Will we be allowed into the United Kingdom in February 2020 after the January 31st, 2020 official Brexit date?
Yes. Under the withdrawal agreement, the UK will continue to participate in the free movement of persons during the transition period. In addition to that, you and your wife will be eligible to apply for the new EU Settlement Scheme.
As a Nigerian citizen, you will need a visa to enter the UK unless your permanent residence is based on your wife's Polish nationality. If that is the case, your card is an "Article 20 card" (usually called, loosely, an "Article 10 card"). More information is available from the UK government at Entering the UK as the holder of an Article 10 or 20 residence card.
If you need a visa, you can get a standard visitor visa, but more likely you'll want to get an EU family permit or an EEA settlement scheme family permit.