The theatrical event will initially take place in more than 100 countries, including New Zealand, over the last weekend of the school holidays.
“Looks like it’s time to brush off that Eras Tour outfit or orange cardigan”, wrote the 35-year-old pop icon.
“Tickets are on sale … [and] dancing is optional but very much encouraged.”
Tickets are available at releasepartyofashowgirl.com, with initial sales only for US theatres.
However, tickets for showtimes in New Zealand will go on sale on Tuesday, according to the AMC Theatres website.
Taylor Swift and Travis Kelce announced their engagement last month.
Swift, who announced her engagement to Super Bowl-winning Kansas City Chiefs tight end Travis Kelce last month – prompting Prime Minister Christopher Luxon to invite them to wed or honeymoon in New Zealand – released her last album The Tortured Poets Department in April last year.
The multiple Grammy Award winner and woman behind hits such as Anti-Hero, Cruel Summer and Shake It Off also criss-crossed the globe for her record-breaking Eras Tour last year, playing 149 shows to more than 10 million people.