Socar is available to anyone 21 or older. But before age, the thing that trips people up is whose name everything is in. The rental requirements Socar lists are a mobile phone in your own name (family members' or other people's names are not accepted) and a credit or debit card in your own name, and a Socar press release from May 2024 phrases it this way: "the driver's license, the mobile phone (name and number), and the payment method must all match."
And there's another layer on top. In January 2020, Socar added a "device ownership" verification step, so that you can use the service and the vehicles only through the app installed on the phone registered in your own name. Even if the number is yours, if that number isn't in the device you're currently holding, you won't pass. When it was introduced, every existing member was subject to the procedure.
So the place foreigners actually get stuck isn't the license field — it's the step before it. Either you have no Korean number, or you have one but it's registered under a company's or a friend's name, or your Korean number is sitting in another device while you open the app on a phone with a foreign SIM. You never even reach the license registration screen; it ends at signup.
The blocking point is different from car rentals. With a rental car, a staff member at the counter looks at your passport and the original International Driving Permit and hands you the keys — but car-sharing has no human-staffed counter at all, so the system cross-checks all four boxes. Rental car requirements are covered separately in Rental Car Requirements for Foreigners.
Note: The requirements and procedures below are as of 2026-08, confirmed from Socar's official service guide, enterprise FAQ, terms of service, and press releases, plus materials from the Korea Transportation Safety Authority and the Korea Road Traffic Authority. Car-sharing signup requirements can be changed by an operator with a single notice, so please re-check each company's app and official guidance before signing up.
What "No Counter" Really Means — Why Car-Sharing Blocks You Earlier Than Rental Cars
Let's clear up one misconception first. Legally, car-sharing is also a vehicle rental business. It isn't that rental cars face strict law and car-sharing gets a loose pass, or the other way around. The exact same law applies.
Article 34-2(2) of the Passenger Transport Service Act requires a vehicle rental business operator, when renting out a business rental vehicle, to verify the driving qualifications of the driver named in the rental contract. And it explicitly states that the operator must not rent the vehicle if the person has no driver's license or their license is suspended, or if the vehicle class falls outside the scope of the license they hold. Article 34-3 of the same Act requires the Minister of Land, Infrastructure and Transport to establish a driving qualification verification system for this purpose.
That system is the Driving Qualification Verification System (RIMS), operated by the Korea Transportation Safety Authority. The Authority's guidance states that the system verifies the "validity and authenticity of the driver's license" of the renter, and that both plastic driver's licenses and mobile driver's licenses can be used. The important part is that this is not a public-facing service. Only vehicle rental business operators and local government rental-business officials can use it, so there's no way for a user to check directly how their own license comes up in a lookup.
The difference isn't the law — it's where the verification happens. At a rental car counter, a person looks at your documents and may even explain what's missing, but a car-sharing app screen only returns pass or fail. And often it won't tell you why.
| Category | Rental car | Car-sharing (Socar, G car, etc.) |
|---|---|---|
| Applicable law | Article 34-2 of the Passenger Transport Service Act | The same provision applies directly |
| Who verifies eligibility | Counter staff and the operator's system | The app and the operator's system |
| When it's checked | At the moment you pick up the car | In advance, at signup and license registration |
| What to do if blocked | Ask the staff right there | You have to contact customer service separately |
So with car-sharing, it's far more common to never reach the booking screen at all than it is to "go pick up a car and get turned away." Let's walk through the four gates in order.
| Gate | Requirement | How it's checked | The problem for foreigners |
|---|---|---|---|
| ① Phone in your own name | Mobile phone registered to you (family/other names not allowed) | Phone identity verification at signup | Early in your stay, you're often using a line registered to a friend or employer |
| ② Device ownership | Run the app on the device holding that line | Android: USIM lookup / iOS: outgoing SMS | Foreign SIMs, dual SIM, or separate-device setups can fail |
| ③ Driver's license | You must complete license registration to book | Physical license, mobile license, or PASS verification | Whether an International Driving Permit can be registered beyond those three methods isn't confirmed in official documents |
| ④ Payment method | Credit or debit card in your own name | Registering a payment method | Getting a domestic card is effectively impossible before you have an Alien Registration Card |
Gates ① & ② — The Phone: Not the Number, But the "Name," and Device Ownership Too
Socar signup starts with phone identity verification. What's checked at this step isn't whether the number is active, but whose name it's registered under. Socar's guidance clearly states that even a family member's name won't work.
The terms of service say the same thing. Article 5(2) of Socar's Terms of Service lists the grounds for refusing membership, and item 2 is "where the applicant's real name is not used, or another person's identity is used." Different name isn't just discouraged by policy — it's grounds for refusing the signup itself.
The second layer is the device ownership verification added in January 2020. The method depends on your operating system.
- Android — Verified via a USIM lookup plus your consent to device access permissions. The app reads the SIM information in the device.
- iOS — Verified via outgoing SMS (SMS MO). The app doesn't receive a text; the device sends one, so the line has to be able to send messages.
The reason this is especially tricky for foreigners is the combinations involved. Koreans typically use one postpaid line in their own name in a single device, but foreigners' setups vary a lot more.
| Common situation | Why it can fail |
|---|---|
| Korean number kept in a different device | If the line isn't in the device running the app, device ownership can't be established |
| Korean line in the second slot of a dual SIM | Depending on your outgoing-line settings, the SMS verification may be sent from the other number |
| Data-only SIM | If the plan blocks voice and outgoing SMS, you can't complete outgoing-SMS verification |
| Line in a friend's or employer's name | The name isn't yours, so you're already blocked at the earlier identity verification step |
| Overseas roaming line | If it isn't a line subject to Korean identity verification, it can't enter the verification process |
Caution: The device ownership verification method above is based on the January 2020 notice and the reporting at the time. We could not independently confirm whether the same method is still in use in 2026, or whether budget carriers (MVNOs) or prepaid SIMs pass. If your signup stalls at this step, check with both your carrier and Socar customer service.
If you need to start with getting a number, read How Foreigners Can Get a Phone Plan in Korea first. Opening a postpaid line in your own name is effectively the only straightforward way past this gate.
Gate ③ — The Driver's License: The Field Verified Inside the App
With Socar, signing up alone doesn't let you book. You must complete driver's license registration before you can reserve a vehicle. Registration can be done on the web or in the app, and the listed methods are three: a physical driver's license, a mobile driver's license, or PASS verification.
Here's a part you should read carefully. We could not confirm any statement in Socar's official documents saying "a Korean driver's license is required." What we did confirm is two things: that the registration methods are the three listed above, and that the service for international students in Korea (covered later) targets "holders of a Korean driver's license." Whether an International Driving Permit (IDP) can be registered is something you should verify directly through the app screen and customer service.
The Korea Transportation Safety Authority's explanation stops at the same point. The RIMS guidance describes what's verified as the "validity and authenticity of the driver's license" and lists plastic and mobile driver's licenses as usable, with no mention of the International Driving Permit. That means official materials alone can't tell us whether a lookup works, so we won't claim either way.
Conversely, the basis for rental cars being open to IDP holders is in the law. Article 96(2) of the Road Traffic Act prohibits people who obtained an International Driving Permit abroad from driving commercial vehicles, but carves out an exception for driving a vehicle rented from a vehicle rental business. Rental cars are a viable route thanks to that exception.
Let's also cover the basic conditions for driving in Korea with an IDP.
- Recognition period — A valid IDP issued by a Geneva Convention or Vienna Convention country can be used in Korea for one year from your date of entry (per Korea Road Traffic Authority guidance).
- Documents to carry — When driving, you must carry all three: the International Driving Permit, your home-country license, and your passport. Missing even one is not acceptable.
- IDP for Korean license holders — If you hold a Korean license, you can get an IDP issued in Korea; the fee is 9,000 KRW and it's valid for one year from the issue date.
IDP recognition scope and exceptions are covered in IDP Recognition in Korea, and the procedure for converting your home-country license into a Korean one is in Foreign Driver's License Exchange. If you really want to use car-sharing, license exchange is the surest path.
Gate ④ — Payment Method: The Final Hurdle of a Domestic Card in Your Own Name
The last box is the payment method. The condition Socar lists is a credit card or debit card in your own name. Even if you clear the first three gates, a mismatched name blocks you here.
What makes this box especially hard for foreigners is the ordering. Opening a domestic bank account and getting a card are effectively only possible after you receive your Alien Registration Card. And the ARC takes time to arrive after you apply. In the meantime, there's no way to get a card in your own name.
What about cards issued overseas? Socar's official guidance lists payment methods only as credit/debit cards plus KakaoPay and Naver Pay, with no mention of issuing country. So we can't tell you it works or that it doesn't. Try registering it, and if it fails, checking with customer service is the fastest route.
📌 Important: Gates ①, ③, and ④ look like separate problems, but their waiting periods overlap. Before you get your Alien Registration Card, a postpaid line in your own name, a domestic card, and a license exchange are all difficult. During that period, it's fair to assume all four boxes are effectively closed at once.
The order for opening an account first is in Opening a Bank Account as a Foreigner, and what does and doesn't work while you're waiting for your ARC is covered separately in Surviving Before Your ARC Arrives.
The International Student Route — The Path That Opened in 2024, and Its Conditions
There's a case where the market itself acknowledged how high the wall really is. On May 23, 2024, Socar launched a car-sharing service for international students residing in Korea. It's aimed at holders of a Korean driver's license.
What's worth noting is what the service handles on your behalf. Its partner, Higher Diversity, stated that it takes care of exchanging your home-country license, changing the name on your mobile phone line, and opening a domestic bank account and debit card. In other words, they turned gates ①, ③, and ④ into the exact items they handle for you. It's a setup in which the operator itself acknowledged these are gates that are hard to clear alone.
The known conditions break down like this.
- How it works — This route only offers the "delivery" service, rather than going to where a car is parked.
- Insurance terms — It was announced that the vehicle damage waiver applies by default as a "zero" product with the deductible fully waived.
- Prerequisite — It's strictly for holders of a Korean driver's license. Meaning the license exchange comes first.
Caution: The above is confirmed from the official press release and news coverage at the May 2024 launch. We could not confirm whether the service is still operated through the same partner in 2026, or where to apply. If you want to use it, ask Socar customer service or your school's international office whether it's currently running.
Searching for "Greencar" Won't Find It — The Information Gap After the Rename to G car
When looking for the second operator, the problem foreigners run into most often isn't the requirements — it's the search term. On September 3, 2024, Greencar rebranded its service as "Lotte Rent-a-Car G car." It was the first time the brand dropped "Green" from its name in the 13 years since the service launched in 2011.
The app store listing is now "Lotte Rent-a-Car G car — the new name for Greencar." But foreign-language resources and community posts about living in Korea still often say "Greencar." Search the old name and you'll land on outdated secondhand material rather than current official guidance. You end up reading old explanations even though the requirements may have changed in the meantime.
What about whether foreigners can use it? We won't make a definitive claim here. Searching "foreigner" in G car's official FAQ returned no results, and the rental terms of service page loads dynamically, so we couldn't obtain the original text. All we can confirm is that foreigner requirements aren't specified in the official guidance. If you're considering using it, contacting customer service directly (1899-1313) is the accurate route.
You should also consider language. Based on their App Store listings, both the Socar and G car apps support only two languages: Korean and English. If you speak Vietnamese, Thai, Russian, or Mongolian, that means you can't review the rental terms and insurance waiver conditions in your native language, which makes it hard to understand in advance how much you'd be on the hook for in an accident.
What Happens If You Go Around It Using Someone Else's Name — Articles 5 and 6 of the Terms, and Unlicensed Driving
When the gates won't open, you might think, "Can't I just borrow a friend's account?" This temptation hits foreigners far more often precisely because they're the ones who struggle to meet the requirements. Let's lay out why you shouldn't, using the actual provisions.
First, the account stage. Article 5(2)2 of Socar's Terms of Service lists "where the applicant's real name is not used, or another person's identity is used" as grounds for refusing membership. It's not that the account becomes a problem later — the signup never legitimately exists in the first place.
Next, the driving stage. Article 6 of the same terms (Restrictions on Service Use) designates "operation of the vehicle by anyone other than the contracting party, including third parties, identity theft, or minors" as grounds for suspension of use. A mismatch in license information due to renewal, suspension, or revocation is also grounds for suspension.
And then there's the law. Article 34-2(2) of the Passenger Transport Service Act imposes on operators the duty to verify driving qualifications and prohibits the rental itself if the person is unlicensed or the vehicle class exceeds their license. Penalties for the driver are in the Road Traffic Act. Driving without a license is subject to imprisonment of up to one year or a criminal fine of up to 3,000,000 KRW under Article 152(1) of the Road Traffic Act, and the same item states that it also covers cases where an International Driving Permit has expired.
Caution: Whether a vehicle damage waiver product still applies to a driver other than the contracting party in an accident varies by product terms, and we couldn't confirm it. What is clear, however, is that operation by anyone other than the contracting party is explicitly listed as grounds for suspension of use. If you don't meet the requirements, using a different mode of transport is safer than working around them.
Getting Around While You Can't Clear the Gates — Riding It Out with Public Transit
Filling in all four boxes takes time. You get your Alien Registration Card, open a line in your own name, exchange your license, and get a card — that sequence eats up weeks. And in the meantime you still have to commute and travel to other cities.
Luckily, the options that don't require driving open up much sooner. Car-sharing's requirements and public transit's requirements are simply different.
| Mode | Booking/payment channel | Where foreigners get stuck |
|---|---|---|
| Car-sharing (Socar, G car) | App | Phone in your own name, device verification, license registration, domestic card in your own name |
| Rental car | Company counter, company website | Original IDP and passport, age and license class requirements |
| Taxi | Hailing apps, taxi stands | Some apps require Korean phone number verification |
| KTX & express buses | Korail+, bus booking apps | Overseas cards are sometimes rejected at the payment step |
| LACHA | One app | Doesn't handle car-sharing, rental cars, or parking |
No app can create a car-sharing account for you. You have to fill in those four boxes yourself. But the getting-around part in the meantime can be bundled into one place. LACHA is a transport and payment super app for foreigners that you can use right away without identity verification. It's designed so that identity verification isn't required under proper procedure, so you can start with just your passport — no Korean bank account or phone number — and pay with overseas simple-payment services like Alipay and WeChat Pay, or with an overseas card. It covers taxis, KTX, express buses, VAN, the Airport Railroad, and transit cards, but it doesn't handle car-sharing, rental cars, or parking, so you'll need to arrange those separately. The range of services that work without a Korean number is covered in What You Can Do Without Identity Verification.
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Frequently Asked Questions (FAQ)
Q1. I have a Korean number, but the phone is registered in my friend's name. Can I sign up for Socar? No. The rental requirement Socar lists is a mobile phone in your own name, and even a family member's name isn't accepted. Article 5(2)2 of the terms lists "where the applicant's real name is not used, or another person's identity is used" as grounds for refusing membership, so it isn't merely discouraged — the signup doesn't legitimately exist. Opening a line in your own name is the only straightforward way.
Q2. Can I use car-sharing with an International Driving Permit (IDP)? We won't claim either way. The license registration methods Socar lists are three — physical driver's license, mobile driver's license, and PASS verification — and the service for international students launched in 2024 targets holders of a Korean driver's license. We couldn't confirm in official documents whether an IDP can be registered, so please check the app screen and customer service. That said, rental cars are open to IDP holders because Article 96(2) of the Road Traffic Act carves out an exception for driving a vehicle rented from a rental business.
Q3. I heard foreigners can't use Greencar. Is that true? That's unconfirmed. First, you need to revisit the name itself: Greencar rebranded to "Lotte Rent-a-Car G car" on September 3, 2024. And within what we could confirm, the official FAQ and guidance don't specify foreigner requirements, and we couldn't obtain the original text of the rental terms of service either. Don't base your decision on old articles or community posts — contact customer service directly (1899-1313).
Q4. Can I register a card issued overseas as my payment method? This needs checking. What Socar requires is a credit or debit card in your own name, and the official guidance lists payment methods only as cards plus KakaoPay and Naver Pay, without mentioning the issuing country. That said, because getting a domestic card is effectively only possible after you have an Alien Registration Card, the reality is that this box is hard to fill right after you arrive. If registration fails, contact customer service.
Q5. Can't I book with a friend's account and drive it myself? Don't. Article 6 of Socar's terms designates "operation of the vehicle by anyone other than the contracting party, including third parties, identity theft, or minors" as grounds for suspension of use. On top of that, driving without a valid license is subject to imprisonment of up to one year or a criminal fine of up to 3,000,000 KRW under Article 152(1) of the Road Traffic Act, and the same item also covers an expired International Driving Permit. It's also unclear how waiver products apply in an accident, so all of the risk falls on one side.
Note: This article is intended as general information. The requirements, verification methods, and service details in the text are as of 2026-08, confirmed from Socar's official service guide and enterprise FAQ, Socar's terms of service and press releases, the Korea Transportation Safety Authority's guidance on the Driving Qualification Verification System, and the Korea Road Traffic Authority's guidance on International Driving Permits. We could not verify with primary sources — and therefore did not make definitive claims about — whether the device ownership verification method (based on the January 2020 notice) is still the same, whether budget-carrier or prepaid SIMs pass, whether overseas-issued cards can be registered, G car's requirements for foreigners, or whether the international student service is currently operating. Car-sharing signup requirements can change with a single notice, so please be sure to re-check each company's app, official guidance, and customer service before signing up and booking. LACHA does not provide car-sharing or rental cars.
