Personal-use orders up to US$150 clear Korean customs without duty or VAT (US$200 for some goods shipped from the US). Cross the line and tax lands on the whole value, not just the excess: a $151 cart comes to about ₩42,000 at customs’ own example method. Black Friday is Nov 27, 26 days from Nov 1.
My wife is the ENFP in our house, which means a cart sits open on her phone from Singles’ Day (Nov 11) onward. I am the ISTJ who builds systems for a living, so the job of saying “that will cost more than the sticker” falls to me. This year I put six realistic carts into a spreadsheet before she could hit pay. The results are in the table below, and the sneakers row surprised me.
What exactly is the $150 line, and what happens at $151?
Korea Customs Service (관세청, Gwanse-cheong) exempts personal-use goods worth $150 or less from customs duty and VAT. The $200 limit applies only to goods shipped from the US and cleared by simplified list clearance (목록통관, mokrok tonggwan, “list clearance”), and several categories are excluded from it, which I cover in the iHerb section. The value that counts is the goods price plus any tax and domestic shipping charged in the origin country. International freight is not part of that test.
Going over does not tax only the excess. Customs’ Jan 8, 2026 guidance says tax is charged on the whole taxable value with no deduction, meaning goods plus freight plus insurance. The worked example I can quote is from a 2022 press release: clothing $150 plus a toy $100 is $250, converted at ₩1,400 per dollar to ₩350,000 and taxed at a 20% simplified rate (duty and VAT combined) for ₩70,000. That was under the old rule that added up orders arriving the same day. Today that pair, bought from different sellers or on different days, would be two separate tax-free orders (see the aggregation section). I borrow only its method. The 20% and the exchange rate are assumptions, not a general tax rate, so I use them for every number below to keep the carts comparable, but I can’t tell you your real rate.
Run it on one dollar over the line: $151 × ₩1,400 = ₩211,400, and 20% of that is ₩42,280. One extra dollar costs about forty-two thousand won. Customs runs a pre-order estimated tax lookup (해외직구물품 예상세액 조회시스템) so you can check before paying.
Most parcels never meet this. About 99% of roughly 186 million e-commerce clearances in 2025 paid no tax, which is exactly why people stop watching the line.
Which ID does a foreign resident give: ARC, passport, or a customs code?
Korean citizens use a personal customs clearance code (개인통관고유부호, gaein tonggwan goyu buho, a personal import ID). Foreign residents get one extra question: what goes in the ID box? Customs’ English FAQ says a person with an Alien Registration Card (외국인등록증, oegugin deungnokjeung, ARC) or a Certificate of Foreign Residence can get the code online through UNI-PASS (unipass.customs.go.kr) using mobile phone or public certificate verification, or in person at the nearest customs office. Type your name exactly as printed on the card, in capitals. The same FAQ says foreigners may also declare imports with a passport or ARC number instead of a code.
Two cautions. That FAQ is a 2023 PDF, and I could only confirm its answers through a search summary rather than the PDF text, so treat it as older guidance. And none of the 2026 changes below say how they apply to ARC holders. Whether the 1-year validity, the postal-code check or the one-time number applies to a code issued to a foreigner is not stated in anything I found.
My read is practical, not official: get the code before Nov 27 instead of finding out at checkout, because the 2026 changes are all written around that code.
What changed in the customs code in 2026?
Four things changed, and they all point at one problem: other people using your code. Customs counted 53,731 misuse reports in January to September 2025, which is 3.2 times the same period of 2024 (16,901) and already more than double 2024’s full year (24,740). The fixes are small on their own but they stack up at checkout, so it helps to know which one will meet you first.
- 1-year validity. Existing holders’ codes expire on the holder’s 2027 birthday. Per customs’ Aug 24 announcement an old code keeps working code-only until you renew, so it is probably not your Black Friday problem, though the checks are meant to widen over time. New or changed codes are where the new checks bite first.
- Postal-code match, since Feb 2, 2026. The delivery postal code must match the code owner’s registered address. It applies first to codes issued or changed on or after Nov 21, 2025.
- Up to 20 saved addresses. You can pre-register delivery addresses, which matters if the parcel goes to an office or to your in-laws.
- One-time authentication number, piloted since Aug 28, 2026. A number arrives by email or text for each order. It applies immediately to new or changed codes and after renewal for old ones, and shops with customs-approved identity checks skip it. The official launch date has not been announced.
Customs also recommends the Ministry of Interior’s 국민비서 (Gukmin Biseo, “citizen secretary”) alert, which notifies you whenever your code is used for a clearance. I’d turn it on.
Which Black Friday carts get added together?
I carried around the “same-day orders get added up” rule for years. Customs dropped it on Nov 17, 2022. Orders are not combined just because they arrive on the same day: different sellers, or the same seller on different days, count separately. Aggregation (합산과세, hapsan gwase) still applies in two cases. One is when the same seller ships parcels split from one same-day purchase. The other is when items travel under one bill of lading or air waybill, as when a forwarder or platform bundles them.
It is not a rare problem: 1,856 of about 38,000 customs helpdesk complaints in the first half of 2022 were about aggregation. Reported examples include two $80 AliExpress and Temu orders bundled into one waybill ($160) and a US forwarder bundling $110 and $100 into $210 over the $200 line, with 40,000-plus won in tax.
Here are my six carts, at ₩1,400 per dollar and the 20% example rate on the whole value (for formal declarations the actual rates may differ). The $145 row assumes origin-country tax and domestic shipping add $9, which is my hypothetical.
| Cart | Line that applies | Added together? | Taxable value | Estimated tax |
|---|---|---|---|---|
| A. $140 + $20, same store, one purchase shipped as two parcels | $150 | Yes, split parcels of one purchase | $160 = ₩224,000 | ₩44,800 |
| B. $80 + $80, two sellers, different days | $150 | No | $80 each | ₩0 |
| C. $110 + $100 through a US forwarder, one waybill | $200 | Yes, one waybill | $210 = ₩294,000 | ₩58,800 |
| D. $145 sneakers + $9 origin tax and shipping | $150 | Single order | $154 = ₩215,600 | ₩43,120 |
| E. $170 of supplements from a US store | $150, not $200 | Single order | $170 = ₩238,000 | ₩47,600 |
| F. $190 jacket shipped from the US by list clearance | $200 | Single order | $190 | ₩0 |
Cart C’s reported example said 40,000-plus won, while my method gives ₩58,800. The gap is the rate, which is why I keep saying the 20% is an example. Cart F only works if the jacket really ships from the US and is not on the excluded list. From anywhere else, the same $190 sits on the $150 line: ₩266,000 × 20% = ₩53,200.
The sneakers are the one that got me. A $145 sticker looks safe, but the test uses the price with origin tax and domestic shipping, so a “safe” cart can quietly cross. Cart B is the legal separation, and cart A, one purchase split into parcels, is exactly what fails.
Why do iHerb and electronics orders stay on the $150 line even from the US?
Because the $200 exception only works through list clearance, and many Black Friday staples are excluded from it: health supplements, medicines, some cosmetics, electronics with broadcast or telecom approval, and food or alcohol. Those need a formal declaration and stay on the $150 line even when they ship from the US. That is cart E: a $170 supplement order shipped from the US does not get the $200 allowance, so tax applies to all $170.
There is a quantity rule on top. Health functional food and medicine for personal import are limited to 6 bottles per person, with medicine based on a 3-month supply. Seven $24 bottles break both rules at once: $168 is over the line, and seven is over the cap.
Customs’ Jan 8, 2026 checklist warns that reselling duty-exempt personal-use goods can be penalized as smuggling or evasion. That is also what the Black Friday crackdown looks for. In 2025 it ran Nov 10 to Dec 31 at 34 customs offices, targeting disguised resale, code misuse by agents or forwarders, and IP-infringing goods. Illegal imports found in January to September 2025 were about ₩80 billion, up roughly 32%. A 2026 edition has not been announced, so treat it as a pattern, not a fact.
What if my parcel is held or taxed?
Start with the cause, not the courier. A held or taxed parcel usually traces to one of the checks above (an excluded category, a forwarder waybill, a postal-code mismatch, a missing one-time number), and the fix is whatever that check asks for. Borrowing a friend’s code is not a fix, since misuse reports are the reason for all of them.
The part not covered above is the refund. If duty has already been paid and you send the item back to the seller within 6 months of the customs declaration date, it can be refunded. For amounts up to ₩2,000,000 the seller refunds first and then you apply with documents, through the customs mobile app or UNI-PASS. The 6 months run from the declaration date, so I’d keep that record somewhere I can find it.
What will I check before I pay on Nov 27?
My checklist, in click order:
- ID. Do I have the customs code, or know what the shop accepts for an ARC holder?
- Postal code. Does the delivery address match the registered one, or one of the 20 saved?
- One-time number. Is my phone or email ready for a per-order message?
- Totals. Goods plus origin tax plus domestic shipping, against $150, or $200 only for list-clearance goods shipped from the US.
- Bundles. One purchase in one parcel, and no forwarder merging orders under one waybill.
- Supplements. Six bottles or fewer per person.
My rule for our house is one store, one day, one cart under $150 before origin tax and shipping, and anything near the line goes through the estimated tax lookup first. If my wife’s cart lands at $190 from a non-US store, I’d rather pay ₩53,200 knowingly than split one purchase into two parcels and hope. And I would never borrow a friend’s code to dodge any of this.
Rates in this post are customs’ example method, not a quote for your parcel. Confirm your own case with the estimated tax lookup or a customs office.