What is the max CA SDI for 2021? 1.22K viewsOctober 10, 2022Banking and Finance 0 Sam Smith11.38K March 29, 2021 0 Comments Spread the loveSpread the love 1 Answer ActiveVotedNewestOldest 0 Blogolu28.38K Posted March 31, 2021 0 Comments Spread the loveSDI Rate. The SDI withholding rate for 2021 is 1.20 percent. The taxable wage limit is $128,298 for each employee per calendar year. The maximum to withhold for each employee is $1,539.58. Spread the love Login