An SR-22 is not an insurance policy but a certification proving you meet Washington's minimum liability coverage requirements after certain violations such as DUI. It's filed by you or your insurer and doesn't affect rates directly; however, the underlying violations can lead to higher premiums.
For those needing SR-22, State Farm offers a competitive annual rate of $483, making it the most affordable option. The next best is Farmers, with a yearly premium of $542. Both rates are for minimum coverage insurance policies.
For drivers not owning a car but still requiring SR-22, the two cheapest non-owner insurance options are State Farm at $473 per year and GEICO at $492 annually.