Interest Rate

Interest is charged on all delinquent (overdue) taxes (Unemployment Insurance, Employment Training Tax, State Disability Insurance, and Personal Income Tax withholdings).

The interest rate is set according to section 19521 of the California Revenue and Taxation Code. The interest rate is adjusted semiannually based on the short-term federal rates in January and July of each year.

Interest is compounded daily on:

  • All unpaid tax.
  • Interest.
  • Certain penalties.

Interest is required because there is no provision in the California Unemployment Insurance Code to waive or cancel interest.

Use the daily interest factors in this table to calculate the interest due on delinquent amounts.

Interest Due on Delinquent Amounts Based on Date
Delinquency Date Interest Rate Daily Interest Factor
01/01/20 to 06/30/20 5% 0.000137
07/01/19 to 12/31/19 6% 0.000164
01/01/19 to 06/30/19 5% 0.000137
07/01/18 to 12/31/18 4% 0.000110
01/01/18 to 06/30/18 4% 0.000110
07/01/17 to 12/31/17 4% 0.000110
01/01/17 to 06/30/17 4% 0.000110

For assistance, call our toll-free number 1-888-745-3886 or visit your local Employment Tax Office.