For Insurers

Captive insurers - 2021 premium tax filing instructions

Filing requirements

All eligible captive insurers that are registered in the State of Washington are required to file an annual online tax form, as provided by this office, even if no business was actually transacted within Washington during that time. Alternate filing methods are not accepted.

Due date

The completed online form and payment must be received by the Office of Insurance Commissioner (OIC) on or before March 1 following the end of the calendar year. When the due date falls on a Saturday or Sunday, the form and payment are considered timely if received the next business day.

  Caution: Do not mail a paper version of the form or any attachments to our office.

Completing your premium tax form

Tax is generally due on all premiums, unless specifically exempted on the tax form. A registered eligible captive insurer is not liable for premium tax on moneys received as a reinsurer or on insurance placed through a surplus lines broker or other intermediary that collects and remits premium tax. If you have questions, please contact us. 

The Washington tax rate is 2%. Calculations will be completed automatically.

Selecting "Print" will print your form exactly as it appears on the screen, even if you have not saved your work.

The "Save progress" button does not check for errors.

 Remember: Save your work before moving away from the form; your work is not automatically saved.

Premium Reporting section

Captive Premiums should be entered in this section, broken out by line of business. 

Exemptions and Deductions

Identify any exemptions or deductions applicable for your entity.

Renewal Fee

The renewal fee paid in March applies to registration July - June beginning in the current calendar year. Renewal fees paid on the tax form due March 1, 2022 apply to registration July 2022 - June 2023.

If your company is no longer active in Washington and this is your final return, enter $0 as the Annual Registration Renewal Fee. 


All fields in this section are populated from other areas of the the tax form.

Declaration and final submission

Review the declaration and, if necessary, update the contact information.

The contact information listed here is the insurance commissioner's only point of contact for premium tax purposes; please make sure the information is accurate.

Enter the name and title of the officer that has examined the form and declares that to the best of this officer’s knowledge and belief, the information is entirely true, accurate and complete.

Submit your form to the insurance commissioner by clicking "Final Submission."