well, a google search should say that wrinkles start showing as soon as 20-25. i don't think comparisons to celebrities are that useful since we're a community of people that are unlikely to perform self care, especially with expensive products.
but sure --
here's a photo of taylor at 25:
https://time.com/3623558/taylor-swift-tweeted-snarky-25th-birthday-wish/
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it's also questionable about whether she's had plastic surgery or not with some differences in nose from ages 25-27
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and here's a final comparison of age 19:
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and age 32
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it's possible that she's had a brow lift or some other procedure as well. eyes don't just naturally perk upwards as you age
anyhow, it's deeply questionable as to whether she's had any plastic surgery or not. i won't say it's certain she's had any permanent procedures, but you can't certainly say that she hasn't.
what's 100% clear is that she's at least had temporary procedures done like botox to remove wrinkles which is common among all celebrities. taylor looks great anyhow, and anything she may have done was done very nicely and naturally.