Why EV Insurance Costs More in Korea and Why Tesla Renewals Keep Rising: Loss Ratios, Model Grades and a Savings Checklist (Oct 2026)

"I haven't had a single accident, yet my Tesla insurance went up by tens of thousands of won." It is the most common complaint in Korean EV communities this fall. I checked reports from Busan Ilbo, Newstomato and Autosentinel and organized this guide into why EV premiums are high, why Tesla renewals are rising, and what to check before you buy or renew.

Premiums depend on age, driving history, coverage and insurer, so this article makes no claim about what your quote will be. Every number below comes from the cited source. Get quotes from several insurers on identical terms to see your real price.

Key points at a glance

• Average premium: last year ₩804,000 for EVs vs ₩672,000 for non-EVs, about 19% higher (Newstomato, citing Financial Supervisory Service data).
• Loss ratio: H1 2026, EVs 105.1% vs combustion cars 85.6% (Busan Ilbo, citing Korea Insurance Development Institute data).
• Average cost per accident: EVs ₩3.41 million vs ₩1.96 million for combustion cars, 1.7x (Busan Ilbo).
• Model grade: Tesla Model Y grade 8, Kia EV9 grade 22, a 14-step gap (Autosentinel, citing Institute data).
• Increases without accidents: if a model's loss ratio worsens, premiums can rise regardless of your own history.

Why EV premiums are higher than for combustion cars

1. Average premiums and loss ratios

A 105.1% loss ratio means the insurer pays out ₩105 in claims for every ₩100 collected. With numbers like that, underwriting and renewal pricing tighten. The number of insured EVs also tripled, from 182,957 in 2021 to 740,546 last year (Newstomato, data submitted by the Financial Supervisory Service).

2. Own-damage coverage is the key

In a 2021 Hankyoreh report, a Korea Insurance Development Institute official explained that high battery prices push EV prices up, so EVs cost more to insure than comparable combustion cars. Own-damage coverage generally rises with the car's price. In that same report's 15 km/h crash tests, the battery survived, but sensor and parts repair costs keep being cited as drivers of accident costs.

Why Tesla renewal premiums are rising

Busan Ilbo (Sept 16, 2026) gives four main reasons.

1. Model-level rates: premiums reflect not just the driver's age, experience and coverage but also the accident frequency and average repair cost of the same model. If one model's loss ratio worsens, even accident-free drivers are subject to increases.
2. Sales surge: Tesla's Korean sales rose 122.3% this year, and an industry source is quoted saying accident counts and claim payouts will likely rise with them.
3. Giga casting and OEM parts: the report explains that the large aluminum underbody casting is hard to repair in sections and that heavy reliance on genuine parts leaves little room to cut costs.
4. Repair network: there are only 14 collision repair sites nationwide (2 direct plus 12 certified body shops), so parts delivery and rental-car periods can run long.

The report also quotes an insurer saying that if the repair network and cost structure stay as they are, increases could continue next year. Newstomato described a Tesla owner who was rejected for direct coverage after a minor fender-bender. Insurers told the National Assembly they do not restrict underwriting by EV status and apply the same standards, but an industry source said EVs' high loss ratios can count against applicants.

Model grades: the number that isn't on the price sheet

The Korea Insurance Development Institute grades car models from 1 to 26. The closer to 26, the less damage in low-speed crashes and the better the repairability (Autosentinel, Sept 16, 2026).

A reference rate is not the premium you actually pay. The grade is one input that reflects model-level risk within own-damage coverage, and insurers apply it differently. Still, as the EV9, a large and expensive car with a high grade, shows, cars at similar prices can get very different quotes. Grades are adjusted quarterly, in January, April, July and October.

Savings checklist before you buy or renew

These are general methods drawn from reports and public data. Discounts vary by insurer, so confirm with a quote.

• Quote several insurers on identical terms: match coverage and deductibles, or the real difference stays hidden.
• Compare sales channels: last year's averages were about ₩600,000 direct, ₩660,000 telemarketing, ₩800,000 via agents and ₩810,000 joint underwriting (Newstomato). These are channel averages, not personal quotes.
• Be careful about dropping own-damage coverage: it lowers the premium, but even a small accident can mean a large repair bill, so weigh the car's value and expected repair costs.
• Check EV-specific riders: some insurers bundle battery coverage, emergency charging and EV towing (Autopost report). Pick only what you need.
• Mileage and driving-habit riders: if you drive few kilometers a year, mileage-based riders may pay off.
• Look up the model grade before buying: check the model on the Institute's website while choosing the car, to compare insurance risk too.

Read before you buy

For prices and subsidies, see the October 2026 Tesla Model Y and Model 3 price and subsidy guide; for option costs, see the Tesla FSD (Supervised) ₩150,000 subscription guide (in Korean). Include insurance when you calculate fixed monthly costs beyond the sticker price.

FAQ

Why did my Tesla renewal premium rise even though I had no accidents?

With the same personal history, rates can rise if the model's loss ratio worsens. Busan Ilbo also cited a community case of a 45% increase with no accidents.

Will switching insurers fix it?

A Model Y owner in Busan Ilbo's report compared several insurers and found no large differences. Still, coverage structure and channel can matter, so comparing is a must.

Where can I look up a model grade?

On the Korea Insurance Development Institute's automotive technology research center website, by maker and model.

What if direct coverage rejects me?

You join through joint underwriting, whose average premium last year was higher than direct (Newstomato).

This article is for information only and is not a recommendation to buy any insurance product. Check terms and quotes directly with each insurer.

Sources: Busan Ilbo, Sept 16, 2026, "Even with no accidents, tens of thousands of won more: why Tesla renewal premiums are soaring"; Newstomato (via Daum News), Apr 28, 2026, "'High loss ratio': EV insurance hard to renew"; Autosentinel, Sept 16, 2026, "Similar prices, so why different premiums? Comparing popular EV grades"; Hankyoreh, July 19, 2021, "Insurers cut EV premiums and say there's nothing left: why?"; Autopost, Aug 10, 2025, "How much more do EV premiums cost than combustion cars?" (all in Korean).