Taylor is the best-selling Female Artist in 2017! Her album "reputation" sold 2,981,000 in equivalent sales in 2017! Globally, "reputation" sold two million copies in its first week! A week prior to the album’s release, pre-orders for it were reported to be over 400,000 units in the United States alone.

According to Nielsen SoundScan, the album sold roughly 700,000 copies during its first day in the country and 1.05 million within four days of release, becoming 2017’s biggest-selling album in the US! The album ultimately became Swift’s fifth N°1 Album on the US Billboard 200 when it debuted atop the chart with 1.238 million album-equivalent units, 1.216 million of that in traditional sales, becoming her fourth album to sell a million copies in the country in its first week. As a result, Swift became the only act to have four albums sell over a million copies there within a week since Nielsen Soundscan began tracking sales in 1991. "reputation" also had the largest album opening in the United States since Adele’s ’25’ in 2015, as well as the 10th largest overall sales week in the US for an album since Nielsen SoundScan tracked its sales, and became the first album since "25" to sell a million copies there within a week. "reputation" has since sold a total of 2,336,000 copies in the US, and has been certified 3× Platinum by the Recording Industry Association of America (RIAA).

"reputation" is Swift’s fifth Album to top the Canadian Albums Chart, entering at N°1 with 80,000 copies among 81,000 consumption units. It had the country’s largest opening for an album since Drake’s "Views" in 2016. "reputation" became the first album since "Damn" to spend three consecutive weeks atop the Canadian charts and gave the singer her second-longest run at N°1 behind "1989". The album sold over 65,000 copies in the United Kingdom within three days, and opened atop the UK Albums Chart with 84,000 copies, becoming Tay’s third album to reach the top of the Official UK chart. "reputation" also had the UK’s fifth-biggest album opening sales week of 2017. The album has been certified Gold by the British Phonographic Industry (BPI). In Australia "reputation" had the third largest opening of the year with first week sales of 54,976 copies behind Sheeran’s "Divide" and Pink’s "Beautiful Trauma", giving Tay her fourth N°1 Album on the ARIA Albums Chart. "reputation" stayed atop the chart for another week and was certified Platinum by the Australian Recording Industry Association (ARIA), giving the singer her fifteenth week at N°1. "reputation" also debuted at N°1 in Ireland and New Zealand, and was certified gold by the Recorded Music New Zealand (RMNZ) for shipments of 7,500 units. The album also topped the charts in Austria, Belgium, the Netherlands, New Zealand, Norway, Scotland and Switzerland.

"reputation's" lead single, “Look What You Made Me Do”, broke several major records, including the record for the most plays in a single day on Spotify. It hit N°1 on the US Billboard Hot 100 with the biggest sales and streaming figures of the year, becoming the fifth song by Swift to top the chart and also the first solo N°1 by a woman with 84.4 million streams since Adele’s “Hello” in 2015 and the second biggest after “Harlem Shake” (103.3 million). Its accompanying music video was viewed 43.2 million times on YouTube in its first 24 hours, the most in any video in history breaking the record of 36 million views of “Gentleman” in 2013.

”Look What You Made Me Do” topped the charts in Australia, Canada, Croatia, the Czech Republic, Greece, Ireland, Israel, Japan, Lebanon, Malaysia, the Netherlands, the Philippines, Slovakia, Spain, the United Kingdom, and the United States. It has also received Platinum certifications in Australia, Brazil, Canada, Italy, and the United States. The music video was directed by Joseph Kahn and became the most-watched music video within 24 hours. In September, Swift released a second song titled “…Ready for It?”. Commercially, “…Ready for It?” reached the top 10 in Australia, Canada, Hungary, Malaysia, New Zealand, Scotland, the United Kingdom, and the United States as well as the top 20 in Ireland and Lebanon. On October 20, 2017, Swift released a third song off the Album entitled “Gorgeous”. The song has reached top ten in Australia, Canada, Hungary, and Malaysia as well as the top twenty in United Kingdom, United States, Ireland, New Zealand, and Scotland.