Roughly one in eight Georgia drivers carries no auto insurance at all. Many more carry only the state minimum — $25,000 per person, $50,000 per accident — which gets eaten up by a single ER visit. If the driver who hits you falls into either category, the only thing standing between you and a financial disaster is your own uninsured/underinsured motorist coverage.
Most Atlanta drivers either do not have UM/UIM coverage, do not have enough of it, or do not understand how it stacks. This is one of the most consequential gaps in personal financial planning that we see week after week. Here is how UM/UIM works in Georgia and how to make sure you have what you need.
The Coverage in Plain English
UM (uninsured motorist) coverage pays for your injuries when the at-fault driver carries no insurance at all. UIM (underinsured motorist) coverage kicks in when the at-fault driver has insurance, but their policy limits are not enough to cover your damages. In Georgia, UM and UIM are bundled together as a single coverage — you cannot buy one without the other.
Your UM/UIM coverage is on YOUR auto policy. It pays YOU. It applies whether you were the driver, a passenger in your own vehicle, a passenger in someone else's vehicle, a pedestrian struck by a car, or a bicyclist hit by a vehicle. It even applies if you are the victim of a hit and run where the at-fault driver flees the scene and is never identified.
How Much Coverage You Need
Georgia requires every auto policy to either include UM/UIM at limits matching your liability coverage, OR to obtain a written rejection of UM/UIM from you. Most drivers never realized they had the choice and took whatever the agent defaulted them to — often the legal minimum or zero.
Practical recommendations:
- Carry UM/UIM limits AT LEAST equal to your liability limits
- For most metro Atlanta drivers, $250,000 per person / $500,000 per accident is a sensible floor — premium increases over the state minimum are typically modest (often $10–$30 per six-month term)
- Higher-net-worth households should consider $500,000 / $1,000,000 limits, plus an umbrella policy with matching UM/UIM if available
- If you ride a motorcycle, carry the highest UM/UIM your insurer offers — motorcycle injuries are catastrophic and most at-fault drivers are dramatically underinsured for the damage they cause
Add-On vs. Reduced UIM — A Crucial Choice in Georgia
Georgia law gives you two ways to elect UIM coverage, and the difference matters enormously:
- Add-on UIM (also called "true" UIM). Stacks ON TOP OF the at-fault driver's policy. Example: at-fault driver has $25K limits, you have $100K add-on UIM. Total available coverage = $125K.
- Reduced UIM. Reduces by the at-fault driver's policy. Same example: at-fault driver has $25K, you have $100K reduced UIM. Total available coverage = $100K (the $25K from the other driver counts AGAINST your UIM).
Add-on UIM is dramatically more valuable. Reduced UIM is the default at most carriers because it costs them less to provide. The premium difference for upgrading to add-on is typically small but the coverage difference can be six figures. Pull your declarations page now and check which type you have. If it is reduced and you can elect add-on, do it before you ever need it.
Stacking Multiple Policies
If you have multiple UM/UIM policies (your own car, a household member's car, a borrowed car you were driving), Georgia generally allows you to stack them in a specific order:
- Primary: the UM coverage on the vehicle you were occupying at the time of the wreck
- Excess: the UM coverage on any other policy in your household where you qualify as an insured
Stacking can dramatically increase total available coverage, especially in serious-injury cases. The analysis is fact-specific and the priority of coverage is the kind of question that benefits from an attorney early in the case.
Hit-and-Run Cases
Georgia UM coverage applies to hit-and-run accidents (sometimes called "phantom vehicle" claims) — but only if you can prove the contact actually occurred with the unidentified vehicle. Eyewitnesses, dashcam footage, paint transfer evidence, and police reports become critical. Without contact (e.g., a phantom vehicle ran you off the road but never touched you), you generally need physical evidence corroborating the contact, OR an independent witness.
How to Make a UM/UIM Claim
After a wreck where the at-fault driver is uninsured or underinsured, the workflow looks like this:
- Notify your own insurance company in writing of a potential UM/UIM claim within the time frame your policy requires
- Pursue the at-fault driver's liability coverage to its full limits FIRST
- Obtain a tentative settlement offer or judgment from the at-fault driver's carrier
- Provide written notice to your UM carrier and give them an opportunity to either consent to the settlement or substitute their own payment to preserve subrogation rights
- Open the UIM phase as a separate negotiation against your own carrier
Failing to follow the proper notice procedure with your UM carrier can void the coverage entirely. This is one of the highest-risk procedural areas in Georgia personal injury practice.
The Bottom Line
UM/UIM coverage is the most important policy provision most Atlanta drivers do not understand. If you do nothing else after reading this article, pull your auto policy declarations page right now and check three things: do you have UM/UIM at all, are the limits at least $100K/$300K, and is it labeled add-on or reduced? If the answer to any of those is no, call your agent today and fix it before you need it.
If you are dealing with an uninsured or underinsured driver after an Atlanta accident, Landry Legal PLLC can help you navigate the UM/UIM claim. Free consultations 24/7 at (888) 914-0011.