The 'Lover' hitmaker and her actor boyfriend marked the US holiday in his native country.
A source said: ''She arrived on Thursday from New York and spent the weekend there.''
Before she headed over to the UK, Taylor marked the holiday with her annual Friendsgiving party - inviting the likes of Gigi Hadid, Martha Hunt and Antoni Porowski.
An insider added to E! News of the bash: ''It's an annual tradition for Taylor to get together with close friends and do this. Many have been at her gathering in years past. This year was intimate and casual, but they all had a great time.''
Taylor and Joe keep their relationship largely out the spotlight and Taylor previously revealed she prefers it that way as she doesn't want her romance ''up for discussion''.
She said: ''I've learned that if I do, people think it's up for discussion, and our relationship isn't up for discussion. If you and I were having a glass of wine right now, we'd be talking about it - but it's just that it goes out into the world. That's where the boundary is. And that's where my life has become manageable. I really want to keep it feeling manageable.''
Meanwhile, Taylor previously confessed she found love ''throughout all the noise'' and her new relationship status helped her pen a more romantic new album.
She said: ''I think there was a bit of a bait-and-switch that happened with this album when we put out 'Look What You Made Me Do' and we're like, 'Guys, this album is gonna be one thing.' And when the album came out, it's legitimately an album about finding love throughout all the noise. It starts with the noise and how that makes all you feel, and how it makes you feel when people are saying things about you that you feel, like, aren't true and living your life sort of in defiance of that.''
What's new in the music world this week?
Watch three incredible live performances from Discovr.TV.
Don't miss the K-pop titans' return to Europe.
Listen to Alex Bayly performing 'Animal'.
Two weeks ahead of Independent Venue Week, Dry Cleaning made 'Britain's Best Small Venue 2015' (NME) the second port of call on their 2020 tour.
'Leave Home' was released on this day (January 10th) in 1977.
For their last gig of the year, The Libertines came back to their adopted hometown of Margate to finish off their latest tour.
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