The two golfers went back to the 18th hole for the playoff. Kim two-putted from just inside 30 feet for par. Taylor, who landed in sand on his second and third shots, couldn't manage to save par with a 17-foot shot from the greenside bunker, handing the win to Kim.
Kim fired a 2-under 70 Sunday to pull into a tie with Taylor, who posted a 4-under 68, at 12-under 276.
The win was Kim's third on the PGA Tour and first since 2008 -- when he took both the Wachovia Championship and the AT&T National. He goes into The Masters with considerable momentum.
Taylor's tough loss meant no invitation for him to The Masters in his hometown of Augusta, Ga.
Sharing third place were Charl Schwartzel (67) and Graham DeLaet (68) at minus-11, while Shaun Michael carded a 7-under 65 and finished fifth at 10-under 278.