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Tax Rates for 2018

The Employee Social Security rate remains 6.2%, as in 2017. The taxable wage limit for this tax is $128,400. The maximum Social Security tax that an employee will pay in 2018 is $7,960.80.

All wages are still subject to the 1.45% Medicare tax rate. Additionally, wages over $200,000 are subject to an additional 0.9% Medicare tax, for a total Medicare Tax of 2.35% on wages over $200,000.

California State Disability Tax

The State Disability Insurance (SDI) rate is 1% of annual earnings up to the California taxable wage limit, up from 0.9% in 2017. The California taxable wage limit is $114,967. The maximum tax withholding for California State Disability is $1,149.67.