Uninsured motorist (UM) coverage pays your own medical bills, lost wages, and pain-and-suffering damages when an at-fault driver has no insurance, or not enough to cover your losses. With roughly one in four Oklahoma vehicles uninsured, carrying UM/UIM coverage protects you more reliably than hoping every other driver on the road carries adequate insurance.
An estimated 26% of vehicles on Oklahoma roads are uninsured — one of the highest rates in the country. Even when the at-fault driver does carry insurance, state law only requires liability coverage that meets Oklahoma’s 25/50/25 minimum policy limits (47 O.S. § 7-103(2)(b)), which is often not enough to pay for a serious injury. When you’re hit by a driver who has no insurance, or insufficient coverage to pay for your damages, your own UM/UIM coverage steps in up to the limits of your policy. Would you rather rely on every other driver having adequate insurance, or protect yourself?
This article covers what UM/UIM coverage does, what it costs, and how to choose the right amount. If you’ve already been in a crash with an uninsured driver, see our guide on what to do after being hit by an uninsured driver for the steps to take right now.
Key Takeaways
- Oklahoma law requires insurers to offer UM/UIM coverage on every auto policy (36 O.S. § 3636), but you can reject it in writing — many drivers do so without realizing it.
- An estimated 26% of Oklahoma drivers carry no insurance at all, and many more carry only the state minimum.
- UM/UIM coverage generally costs around $10 a month, far less than most drivers expect.
- Since November 1, 2014, Oklahoma policies generally cannot “stack” UM/UIM limits across multiple vehicles unless your insurer expressly agrees to it.
- The deadline to pursue a UM/UIM claim depends on whether you’re suing the at-fault driver or making a claim under your own policy — they run on different clocks.
2024 Update: Oklahoma’s Uninsured Vehicle Enforcement Program
Oklahoma’s Uninsured Vehicle Enforcement Program lets law enforcement — including police and district attorneys — identify uninsured vehicles on public roads using automatic license plate reader systems. The penalty for driving uninsured has increased from $100 to $250, and repeat violations or continued non-compliance can lead to driver’s license suspension and vehicle impoundment.
The enforcement program targets uninsured drivers after the fact; it doesn’t compensate you if an uninsured driver has already hit you, and it does nothing to stop an out-of-state or unregistered vehicle from hitting you tomorrow. Carrying your own UM/UIM coverage is still the only protection you control directly.
How Uninsured/Underinsured Motorist Coverage Works
Oklahoma’s minimum coverage requirements have remained at $25,000 per person/$50,000 per accident for bodily injury and $25,000 for property damage since 2004. If an at-fault driver carries only the state minimum — or nothing at all — the gap between what they owe and what they can pay falls on you unless you have UM/UIM coverage of your own.
Here’s how the numbers typically play out after a $60,000-damages crash caused by a driver carrying only the state-minimum $25,000 in bodily injury liability coverage:
| Your UM/UIM coverage | From at-fault driver’s insurer | From your UM/UIM insurer | You still owe |
|---|---|---|---|
| None | $25,000 | $0 | $35,000 |
| $25,000 | $25,000 | $25,000 | $10,000 |
| $50,000 | $25,000 | $35,000 | $0 |
Note: in Oklahoma, you can often settle with the at-fault driver’s liability carrier before resolving your UIM claim, as long as you follow your own policy’s notice requirements first.
Why UM/UIM Coverage Is Worth Adding to Your Policy

What UM/UIM Coverage Includes
- Uninsured Motorist (UM): Pays medical expenses, lost wages, and pain and suffering when an uninsured driver hits you.
- Underinsured Motorist (UIM): Activates when the at-fault driver has insurance, but not enough of it to cover your damages.
Advantages of UM/UIM Coverage
- Financial security — helps you avoid paying an at-fault driver’s share of your own damages out of your own pocket.
- Passenger protection — covers family and friends riding in your vehicle, not just you.
- Customizable limits — you can typically raise or lower your coverage to fit your budget and risk tolerance.
Cost of UM/UIM Coverage
UM/UIM coverage is generally one of the more affordable additions to an auto policy, often adding roughly $10 a month for meaningful protection — far less than most drivers assume before they ask for a quote.
Stacking UM/UIM Coverage
For policies issued, renewed, or reinstated after November 1, 2014, Oklahoma law does not allow stacking — combining UM/UIM limits across multiple vehicles or policies — unless your insurance carrier expressly agrees to provide it (36 O.S. § 3636). Don’t assume you can combine limits from every car on your policy; ask your agent in writing whether your policy permits stacking before you count on it. The Oklahoma Supreme Court’s Coates decision addressed how UM benefits and stacking rights interact — see how the Coates ruling affects UM stacking rights for more detail.
Tips for Choosing the Right UM/UIM Coverage Amount
- Match your liability limits. Most agents recommend buying UM/UIM coverage equal to your bodily injury liability limits, since that’s the most protection you can extend to yourself and your passengers.
- Count your passengers. If you regularly drive family members or carpool, higher limits protect everyone riding with you, not just the policyholder.
- Weigh the 1-in-4 risk. With an estimated 26% of Oklahoma vehicles uninsured, the odds of an at-fault driver carrying no coverage at all are meaningfully higher here than in many other states.
- Ask about “economic-only” options. Some insurers offer a lower-cost UM/UIM option that pays medical bills and lost wages but excludes pain-and-suffering damages — confirm which version you’re being quoted before you compare price.
The Real Cost of Skipping UM/UIM Coverage

Skipping UM/UIM coverage doesn’t just mean paperwork — it means the entire financial gap from the crash lands on your household. A court judgment against a driver who couldn’t afford insurance in the first place is often worth little more than the paper it’s printed on, and you may end up covering your own repairs and medical bills while all or part of that judgment goes uncollected. Trying to collect from an underinsured driver directly without UM/UIM coverage of your own means betting your recovery on a stranger’s limited policy, and on their ability to ever pay a judgment out of pocket — a bet most drivers would rather not make when the coverage itself costs about as much as a streaming subscription.
Deadline for Filing a UM/UIM Claim in Oklahoma
The filing deadline depends on whom you’re pursuing:
- Suing the at-fault driver directly is a personal injury claim, generally subject to Oklahoma’s two-year deadline (12 O.S. § 95).
- Making a UM/UIM claim under your own policy is a contract claim against your insurer, not a personal-injury lawsuit against a driver, so a different clock can apply. Your policy’s own notice and proof-of-loss provisions typically require prompt notice well before any lawsuit deadline arrives.
Because the two clocks run differently, notify your own insurer as soon as possible after any crash involving an uninsured or underinsured driver, even if you’re not yet sure how much your claim is worth.
UM/UIM FAQs
Is UM/UIM coverage mandatory in Oklahoma?
No. Oklahoma law requires insurers to offer UM/UIM coverage on every policy, but you can reject it in writing (36 O.S. § 3636). It isn’t mandatory — it’s an option most drivers are better off keeping.
Is UM/UIM coverage really worth the extra cost?
For most drivers, yes. At roughly $10 a month, the cost is small compared to what you could owe out of pocket if an at-fault driver — nearly 1 in 4 on Oklahoma roads — turns out to be uninsured.
Who and what does a UM/UIM policy actually cover?
More than just you and your own car. A typical UM/UIM policy covers everyone riding with you — family, coworkers, carpool passengers — for medical bills, lost wages, and pain and suffering, whether the at-fault driver is uninsured, underinsured, or never identified at all (a hit-and-run). Buy your limits with that full carload in mind, not just your own risk.
Can I increase my UM/UIM coverage after an accident?
No. This is the one decision you can’t make retroactively — coverage has to be in place before the crash happens, not after you already know you need it.
Talk to an Oklahoma Attorney About Your UM/UIM Claim
If an uninsured or underinsured driver hurt you or a family member, Hasbrook & Hasbrook can help you sort out what your policy actually covers and pursue every source of recovery available. Call (405) 605-2426 or reach out through our online form — the consultation is free.





