The second leg of the Eras extravaganza, after sell-out shows in Melbourne, takes off at Accor Stadium in Olympic Park with four shows from Friday to Monday.
Friday is set to be a hot one in Sydney's west, with temperatures expected in the 30s after peaking at 36C during the day.
Ticket prices for the sold-out shows range from $79.90 for the cheap seats up to $1249 for the top VIP packages and dance floor tickets for $380.
Taylor Swifties are expected to pump $80 million into the Sydney economy over four shows. (Joel Carrett/AAP PHOTOS)
More than 320,000 fans are going, with close to a third coming from outside NSW, providing Sydney with an economic boon of more than $80 million, according to Destination NSW.
The average concert-goer is expected to spend about $1,300 each, including about $200 each on merchandise, according to experts at the University of Technology Sydney.
Thousands of Swifties were already parting with their hard-earned cash at merchandise pop-ups on Wednesday and Thursday, with many queuing for hours.
Local businesses are also cashing in with multiple venues running Swiftie parties while Oz Jetboating is running sing-along jet boat rides.
Sydney-based gelato brand Messina launched a special "Blank Space Baby" flavour while inner-city cafe The Tea Cosy is offering "Shake it Off" milkshakes.
Swift, 34, landed in Sydney alongside her support act Sabrina Carpenter on Monday after playing three shows at the Melbourne Cricket Ground, which drew the biggest audience of the superstar's career.
She was spotted at Italian restaurant Pellegrino 2000 in Surry Hills with Carpenter by fans on Tuesday night and as  Sydney Zoo in western Sydney on Wednesday.
Her partner and NFL superstar Travis Kelce, also 34, arrived in Sydney on her private jet on Thursday morning, sending fans around the world into a frenzy.
The couple went to Sydney Zoo later in the day - the 2nd visit in 24 hours for Swift.
Swift is expected to rake in about $27 million for each of her seven Australian shows and will personally pocket about $5 million per show.
Swift's partner and NFL superstar Travis Kelce joined her in Sydney on Thursday. (Joel Carrett/AAP PHOTOS)
The Eras Tour as a whole, which began in March 2023 and will finish in December, is already the best-selling concert tour ever and the first to surpass $1 billion in ticket sales.
According to US business magazine Forbes, Swift became a billionaire in 2023, based on her Eras tour earnings and the value of her music catalogue.
After her Australian tour finishes on February 26 she will play six shows in Singapore followed by a European run starting in May.
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