California left turn law lives in three Vehicle Code sections: one tells you where to position your car, one requires a signal for the last 100 feet, and one makes you yield to oncoming traffic and pedestrians until the turn is genuinely safe. Breaking any of them is a $35 base fine that climbs to roughly $240 after state surcharges, plus one point on your driving record.
How to Make a Legal Left Turn
Before the turn, move your vehicle as close as practical to the left edge of the farthest left lane going your direction. Don’t start the turn before you actually enter the intersection, and finish it in a lane that’s lawfully open to traffic on the street you’re entering.1California Legislative Information. California Code VEH 22100
You can’t change direction on a roadway unless it’s safe and you’ve signaled.2California Legislative Information. California Code VEH 22107 The signal has to run continuously for the last 100 feet before the turn.3California Legislative Information. California Code VEH 22108 At city speeds that’s two to three seconds of blinker time. Officers write tickets for failing to signal even when the turn itself was otherwise legal.
A left-turning driver must yield to every oncoming vehicle close enough to be a hazard, and must keep yielding until the turn can be made with reasonable safety.4California Legislative Information. California Code VEH 21801 Waiting a long time doesn’t shift the duty. Neither does a light turning yellow. You yield until it’s safe.
Pedestrians get a second layer. Any driver must yield to a pedestrian in a marked or unmarked crosswalk and must slow or take other action to protect them.5California Legislative Information. California Code VEH 21950 During a left turn, that means checking the crosswalk on the street you’re turning onto, not just the one you’re leaving.
Left Turns at Traffic Signals
Green Light vs. Green Arrow
A solid green circle lets you turn left, but you yield to oncoming traffic and to pedestrians already in the intersection. This is an unprotected turn, and it’s where most left-turn collisions happen. A green arrow is protected: oncoming traffic has a red, and you proceed as the arrow directs. Even then, watch for pedestrians who entered the crosswalk during an earlier phase.
Left on Red
California allows exactly one kind of left turn on a red light. From a one-way street onto another one-way street, you may turn left on a steady red after a full stop, yielding to pedestrians and to any vehicle that’s an immediate hazard. A posted sign can prohibit the turn entirely.6California Legislative Information. California Code VEH 21453 If either street isn’t one-way, left on red is illegal.
No Left Turn Signs
Cities and counties can post signs that prohibit left turns at specific intersections, or require them where the layout demands it. Once an official sign or control device is up, disobeying it is a separate violation.7California Legislative Information. California Code VEH 22101 These show up often near schools, freeway on-ramps, and high-accident spots.
What an Improper Left Turn Actually Costs
The base fine for an improper left turn under VEH 22100, or for ignoring a turn-restriction sign under VEH 22101, is $35.8California Courts. Uniform Bail and Penalty Schedules That’s not what you pay. California stacks assessments and fees on top:
- Penalty assessments of roughly $29 per $10 of base fine (or fraction), which on $35 runs about $116.
- A 20% state surcharge, adding $7.
- A $40 court security fee per infraction conviction.
- A $35 criminal conviction assessment for an infraction.
- A $10 administrative assessment for DMV record maintenance.
The real cost lands around $240. In a highway construction zone, the base fine doubles to $70, which pushes the total higher.8California Courts. Uniform Bail and Penalty Schedules
The Point on Your Record
An improper left turn adds one point to your DMV record, and that point often matters more than the fine. Four points in 12 months, six in 24, or eight in 36 lets the DMV presume you’re a negligent operator and suspend your license.9California Legislative Information. California Code VEH 12810.5 Well below those thresholds, insurers see the point and typically raise premiums 10% to 30%, which over a three-year cycle usually costs more than the ticket.
Traffic school can keep the point off your public record. If you hold a standard noncommercial license, the ticket involved a noncommercial vehicle, and you haven’t attended traffic school in the past 18 months, the court will generally let you take a state-licensed course. Finish it and insurers don’t see the point.10California Courts. Traffic School You still pay the fine, plus a traffic school fee, but the insurance math usually favors doing it.
Who’s at Fault in a Left-Turn Collision
Because the Vehicle Code puts the duty to yield on the left-turning driver, that driver is almost always presumed at fault when a crash happens during the turn.4California Legislative Information. California Code VEH 21801 Insurance adjusters and courts start from the assumption that you failed to wait for a safe gap. The presumption isn’t absolute, but overcoming it takes strong evidence that the other driver did something unusual: ran a red light, drove at a dramatically unsafe speed, or was in a lane they shouldn’t have been in. Dashcam footage is the single most persuasive piece of evidence in these disputes.
Fighting an Improper Left-Turn Ticket
Most drivers pay. A few situations are worth contesting.
A necessity defense applies when you turned to avoid an immediate danger, like swerving to dodge a car that ran a red light or an object in the road. The hazard has to have been sudden and the turn the only reasonable response. Courts aren’t moved by arguments that the turn was simply more convenient.
You can also challenge the officer’s observations. If the officer wasn’t positioned to clearly see your lane position or the signal phase, that undercuts the reliability of their testimony. Dashcam or intersection camera footage that contradicts their account is the strongest evidence. Request city or county camera footage quickly, because it may be overwritten within days.
Faded or obstructed signs are another viable defense. If a “No Left Turn” sign was hidden behind vegetation or knocked down, you can argue there was no reasonable way to know the turn was prohibited. Photos from the day of the ticket, or shortly after, make the case.