The coverage on your own policy that steps in when the driver who hurt you had little or no insurance — and one of the most misunderstood, and valuable, protections you own. Here’s how it actually works.
OCGA § 33-7-11 is the law behind uninsured/underinsured motorist (UM/UIM) coverage — part of your own auto policy that pays for your injuries when the at-fault driver has no insurance, can’t be found, or simply didn’t carry enough.
Here’s the problem it solves. Georgia only requires drivers to carry minimum liability limits, and a serious injury can blow past those limits in a single ambulance ride and ER visit. Worse, a striking number of drivers carry no insurance at all, and hit-and-run drivers carry none you can collect from. Without UM/UIM, you’d be left holding the bill for someone else’s carelessness.
UM/UIM flips that. It’s coverage you buy on your own policy that pays you when the other side can’t. The statute requires insurers to offer it with every liability policy unless you reject it in writing — which is why so many people have it without realizing how powerful it is. The catch is that Georgia offers it in two very different forms, and the one you have can change your recovery by tens of thousands of dollars.
Georgia’s statutes are public law, so here is the operative language of the key provisions. (Summarized; consult the official Code for the complete text.)
(a)(1) No automobile liability policy shall be issued unless it provides uninsured motorist coverage for the protection of insureds who are legally entitled to recover damages from owners or operators of uninsured motor vehicles — unless the insured rejects such coverage in writing. Coverage is offered up to the policy’s liability limits.
“Uninsured motor vehicle” is defined to include a vehicle with no liability insurance, a vehicle whose insurance limits are less than the insured’s UM limits (i.e., underinsured), and a vehicle whose owner/operator is unknown (hit-and-run).
Georgia permits an insured to select add-on (non-reduced) UM coverage or reduced (traditional) UM coverage. (Confirm exact framework and election requirements against current law.)
People use “UM” and “UIM” loosely, but the two situations are distinct — and Georgia handles both within this one statute.
| Term | When it applies |
|---|---|
| Uninsured (UM) | The at-fault driver had no liability insurance at all, or can’t be identified — a hit-and-run. |
| Underinsured (UIM) | The at-fault driver had insurance, but not enough to cover your injuries. Your coverage makes up part of the gap. |
The underinsured situation is the one most people never plan for. The other driver is “insured” — technically legal — but their minimum policy is a fraction of what a hospital stay, surgery, and months of lost work actually cost. That’s exactly where UIM coverage earns its keep.
This is where Georgia UM coverage trips up almost everyone — including some insurance agents. The same dollar amount of UM coverage pays out very differently depending on which type you chose.
Georgia lets you buy UM coverage in two flavors. With “add-on” (also called non-reduced) coverage, your UM limits stack on top of the at-fault driver’s liability coverage — you get both. With “reduced” (also called traditional or set-off) coverage, your UM limit is offset by whatever the at-fault driver’s liability paid — you only get the difference.
You’re seriously hurt with $100,000 in damages. The at-fault driver carries only $25,000 in liability coverage, and you carry $50,000 in UM.
Add-on UM: $25,000 (their liability) + $50,000 (your UM) = $75,000 available.
Reduced UM: $50,000 UM − $25,000 (their liability) = $25,000 UM, plus their $25,000 = $50,000 available.
Same crash, same coverage limit on paper — a $25,000 difference based purely on which type you elected. (Illustrative; confirm current mechanics.)
Add-on coverage is more protective and is why Georgia changed its law in 2008 to make it available. Many people don’t know which type they have until they need it. It’s worth checking your declarations page now — and, after a crash, it’s one of the first things a lawyer should verify, because it changes the entire strategy for who to pursue and in what order.
“Stacking” means combining UM coverage from more than one vehicle or policy to increase the total available to you. If a household has multiple vehicles or policies with UM coverage, it may be possible to stack those limits — turning, say, three $50,000 UM coverages into a far larger pool for one catastrophic injury.
Whether and how coverage can be stacked depends on the policies’ language and the facts, and it’s an area insurers often resist. Identifying every potentially stackable policy — across vehicles, household members, and even resident relatives — can dramatically expand the money available to make a badly injured person whole.
UM/UIM is for you. It pays your injuries when the at-fault driver can’t, and using it is not the same as being at fault — it’s exactly what you bought it for. A proper UM claim should not raise your rates for someone else’s wreck.
Not necessarily. If their minimum policy doesn’t cover your injuries, you’re underinsured-claim territory — and your own UIM coverage may be the difference between a real recovery and a stack of unpaid bills.
Far from it. Add-on and reduced UM with the same limit can pay out very differently. Which one you have can swing your recovery by thousands — so it’s worth knowing before you ever need it.
This page explains Georgia law in general terms and is not legal advice; reading it does not create an attorney-client relationship. Statutory text is summarized for readability — consult the official Georgia Code and your own policy for the complete, authoritative terms, which change over time. UM/UIM coverage and stacking are technical and fact-specific, so speak with a licensed Georgia attorney about your situation.
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