Non-standard carriers don't all price DUI the same way. Some credit your pre-conviction driving record, others apply flat conviction multipliers regardless of your history before the DUI — knowing which carrier uses which model changes your rate by 40% or more.
Non-Standard Carriers Use Two Pricing Models for DUI: Conviction Multiplier vs. Blended History
Non-standard carriers in California split into two pricing camps after a DUI. Conviction-multiplier carriers apply a flat rate increase based solely on the DUI itself — typically 150–200% over their base non-standard rate — regardless of whether you had 10 clean years before the conviction or three prior speeding tickets. Blended-history carriers factor in your full driving record: they still penalize the DUI heavily, but they credit accident-free years and no prior violations, often resulting in rates 30–50% lower than multiplier carriers for drivers with otherwise clean records.
The difference matters because most DUI drivers quote only one or two carriers and assume all non-standard pricing works the same way. Bristol West and Dairyland typically use blended-history models in California. The General and GAINSCO lean toward conviction multipliers. Progressive and Kemper fall somewhere in between, varying by underwriting tier and county risk score.
You won't know which model a carrier uses from their website or quote form. The pricing structure reveals itself only in the final premium, which is why drivers with identical DUI convictions in the same zip code can see quotes ranging from $210/mo to $340/mo depending on which carriers they approach and whether those carriers credit pre-conviction history or ignore it entirely.
Conviction Class Changes the Base Multiplier Before Any Other Factor Applies
California separates DUI convictions into standard first-offense (VC 23152), aggravated first-offense (BAC ≥0.15%, minor in vehicle, injury, or property damage), and repeat-offense. Non-standard carriers apply different base multipliers to each class before layering on your individual profile. A standard first-offense DUI typically triggers a 150–180% rate increase. An aggravated first-offense can trigger 200–250%. A second-offense DUI within 10 years often moves you into assigned-risk territory where California Automobile Assigned Risk Plan rates apply, currently averaging $380–$520/mo for minimum liability.
Most carriers treat refusal cases (implied-consent refusal to submit to chemical testing) as equivalent to aggravated DUI for pricing purposes, even if the criminal charge was reduced or dismissed. The DMV suspension is identical, the SR-22 filing period is identical, and underwriting models treat refusal as high-consequence behavior regardless of court outcome.
Conviction class also determines how long the DUI surcharge persists. Standard first-offense surcharges typically decline after year three if no new violations occur. Aggravated and repeat-offense surcharges hold closer to full strength for five years, and some carriers won't reduce the multiplier until the SR-22 filing period ends and you move back to a standard policy.
Find out exactly how long SR-22 is required in your state
SR-22 Filing Adds a Separate Underwriting Fee, Not Just the $25 State Filing Cost
California charges $25 for the SR-22 filing itself, processed through the DMV. That's the state fee. Non-standard carriers add their own SR-22 underwriting fee on top of the DUI rate increase, ranging from $15 to $50 per policy term depending on carrier and payment plan. GAINSCO and The General typically charge $15–$25 per six-month term. Bristol West and Dairyland charge $25–$35. Direct Auto and Safe Auto can charge $40–$50, particularly for monthly payment plans where the administrative load is higher.
The SR-22 underwriting fee is separate from the policy premium and usually non-refundable even if you cancel mid-term. Some carriers itemize it on the declaration page; others bury it in the total premium without a line-item breakout. If you're comparing quotes and one carrier is $18/mo cheaper but doesn't show an SR-22 fee while another does, ask explicitly whether the SR-22 fee is included or will be added at binding.
SR-22 filing also restricts you to six-month policy terms at most carriers. California allows 12-month auto policies for standard drivers, but non-standard carriers issuing SR-22 policies almost universally limit terms to six months to preserve their ability to re-underwrite and non-renew if another violation occurs during the filing period.
County Risk Scores Interact with DUI Multipliers Differently Across Carriers
California allows carriers to apply county-level risk adjustments based on theft rates, uninsured motorist density, and collision frequency. Los Angeles, Alameda, Sacramento, and Fresno counties carry higher risk scores than rural counties. For standard drivers, county risk might shift rates by 10–15%. For DUI drivers in the non-standard market, county multipliers stack on top of conviction multipliers, and some carriers apply both at full strength while others cap the combined effect.
Dairyland and Bristol West typically cap combined multipliers at 250% of base rate, meaning a high-risk county won't push a DUI driver's rate beyond that ceiling even if the conviction multiplier and county score would mathematically exceed it. The General and GAINSCO don't publish caps, and drivers in Los Angeles County with a DUI often see effective combined multipliers near 300%. Acceptance Insurance applies county scores before conviction multipliers, which results in lower combined increases in high-risk counties — a reversal of the usual stacking pattern.
If you live near a county line, moving your garaging address across the border can change your premium by $40–$80/mo with the same carrier and the same DUI on record. Carriers verify garaging address against vehicle registration and will cancel for material misrepresentation if the address doesn't match where the car is actually kept overnight, but legitimate address changes during your SR-22 period are common and worth requoting when they happen.
Payment Plan Structure Changes Effective Annual Cost by 8–14% in the Non-Standard Market
Non-standard carriers charge installment fees for monthly payment plans, typically $5–$12 per month on top of the base premium. A policy quoted at $1,260 for six months paid in full becomes $1,320–$1,380 if paid monthly, an 8–14% effective increase. The General and Safe Auto charge $8–$10/mo installment fees. GAINSCO and Direct Auto charge $10–$12. Bristol West charges $5–$7, among the lowest in the non-standard market.
Some carriers also require a larger down payment for DUI-SR-22 policies than for standard non-standard policies. Down payments range from 15% to 35% of the six-month premium, with higher percentages common for aggravated or repeat-offense convictions. A $1,200 six-month policy might require $180 down (15%) for a standard first-offense DUI or $420 down (35%) for a second-offense DUI, with the balance spread across five monthly payments plus installment fees.
Paying in full eliminates installment fees and sometimes unlocks a paid-in-full discount of 3–5%, but most DUI drivers are managing court fines, DMV reinstatement fees, DUI education costs, and possible ignition interlock lease payments simultaneously. Monthly payment plans cost more over six months but preserve cash flow during the highest-expense phase of DUI compliance.
Coverage Selection Has Asymmetric Impact on Non-Standard DUI Premiums
California requires 15/30/5 liability minimums, and most non-standard carriers will write DUI-SR-22 policies at state minimum. Increasing liability limits from 15/30/5 to 50/100/25 raises premiums by 18–28% in the non-standard market, a steeper increase than the 12–18% standard drivers see for the same limit change. Non-standard carriers price higher limits as additional risk exposure on top of an already high-risk profile.
Adding comprehensive and collision coverage to a DUI policy costs 40–60% more than the same coverage would cost a standard driver on the same vehicle. A 2018 Honda Civic with $500 deductibles might add $85/mo for comp and collision on a standard policy. The same coverage on a DUI-SR-22 policy adds $125–$145/mo. Some carriers won't offer collision coverage at all on vehicles older than 12 years or worth less than $5,000 when the policyholder has an active DUI.
Uninsured motorist coverage is mandatory in California unless you sign a written waiver, but it's priced as an add-on in non-standard policies. UM coverage typically adds $15–$30/mo to a DUI-SR-22 policy. Signing the waiver saves the premium but leaves you uncovered if you're hit by an uninsured driver, common in California counties with uninsured motorist rates above 15%. Most DUI drivers waive UM to keep premiums under $200/mo, but that creates a coverage gap mainstream carriers would never allow on a standard policy.
Rate Decreases During the SR-22 Filing Period Are Rare but Possible Under Specific Conditions
California requires three years of SR-22 filing after a DUI, measured from the conviction date or the reinstatement date depending on whether your license was suspended. Most non-standard carriers hold DUI surcharges flat for the first two years, then begin reducing them in year three if no new violations occur. The reduction is typically 10–15% in year three, with the full surcharge dropping off only after the SR-22 filing period ends and you move to a standard or preferred-risk policy.
Some carriers offer step-down pricing at each six-month renewal if you remain violation-free and complete DUI education or install an ignition interlock device as required by court order. Dairyland and Bristol West have formalized step-down schedules; other carriers apply reductions at underwriter discretion. A step-down might reduce your premium by $20–$40 per term, modest but meaningful over three years.
Switching carriers mid-filing-period can also unlock savings if your current carrier uses a conviction-multiplier model and you move to a blended-history carrier that credits your pre-DUI driving record. You'll pay a new SR-22 filing fee and possibly a cancellation fee on your old policy, but if the new carrier's rate is $60/mo lower, the switch pays for itself in the first term. The SR-22 filing transfers with you as long as there's no coverage gap — even one day without active SR-22 on file resets your three-year clock to zero in California.
