helptariff
Korea → United StatesHS 851810Other line microphones and stands thereforTake care

전기기기와 그 부분품, 녹음기ㆍ음성 재생기ㆍ텔레비전의 영상과 음성의 기록기ㆍ재생기와 이들의 부분품ㆍ부속품(ko) › Microphones and stands therefor; loudspeakers, whether or not mounted in their enclosures; headphones and earphones, whether or no

Other line microphones and stands therefor

HS 851810Korea → United States

Destination duty
0%
General
Federal VAT / GST
None
Clearance difficulty
Take care

1Overview

  • Destination duty: Free (General, 8518.10.40.00) — No preferential agreement with Korea — the basic / MFN rate applies.
  • Federal VAT / GST: None — The US has no federal VAT. State sales tax is not charged at import.
  • This code covers: Other line microphones and stands therefor
  • Additional tariffs: Additional tariffs (HTS Chapter 99: Section 232/301/122) may apply on top of the rate shown — check the current Chapter 99 notes.
  • Regime to watch: US duty-free de minimis suspended for all countriesSince 2025-08-29 Executive Order 14324 has suspended duty-free de minimis entry for shipments from every country. Parcels are now dutiable and need an entry with HS classification and origin, which structurally raises difficulty for small consignments.federalregister.gov

Key points

  • De minimis is suspended indefinitely: non-postal modes since 2026-06-24, international mail since 2026-07-24. The US$800 duty-free entry no longer exists.
  • No federal VAT or GST. State sales or use tax is a separate matter handled after import, not at the border.
  • US$2,500 separates informal from formal entry. Mail shipments up to US$2,500 in HTSUS chapters 1-97 may use the new postal informal entry process, with duty due by the 7th day of the month following arrival.
  • The importer of record may self-file in ACE, but formal entries require a customs bond, and ocean cargo also requires an Importer Security Filing (ISF 10+2) at least 24 hours before loading.
  • Additional tariffs may apply as HTSUS Chapter 99 lines. As of 2026-09, verify the Section 232, Section 301 and surcharge position for your entry date rather than relying on a previously quoted number.

As of: 2026 HTS Rev.15

2Classification

HS6 names

  • ko마이크로폰과 그 스탠드
  • enOther line microphones and stands therefor
  • zh_hant其他有線微音器及其座
  • zh_hans其他有线微音器及其座

United States tariff lines

LineDescription
8518.10.40.00Microphones having a frequency range of 300 Hz to 3.4 kHz with a diameter of not exceeding 10 mm and a height not exceeding 3 mm, for telecommunication useMicrophones and stands therefor; loudspeakers, whether or not mounted in their enclosures; headphones and earphones, whether or not combined with a microphone, and sets consisting of a microphone and one or more loudspeakers; audio-frequency electric amplifiers; electric sound amplifier sets; parts thereof › Microphones and stands therefor
8518.10.80OtherMicrophones and stands therefor; loudspeakers, whether or not mounted in their enclosures; headphones and earphones, whether or not combined with a microphone, and sets consisting of a microphone and one or more loudspeakers; audio-frequency electric amplifiers; electric sound amplifier sets; parts thereof › Microphones and stands therefor
8518.10.80.30MicrophonesMicrophones and stands therefor; loudspeakers, whether or not mounted in their enclosures; headphones and earphones, whether or not combined with a microphone, and sets consisting of a microphone and one or more loudspeakers; audio-frequency electric amplifiers; electric sound amplifier sets; parts thereof › Microphones and stands therefor › Other
8518.10.80.40OtherMicrophones and stands therefor; loudspeakers, whether or not mounted in their enclosures; headphones and earphones, whether or not combined with a microphone, and sets consisting of a microphone and one or more loudspeakers; audio-frequency electric amplifiers; electric sound amplifier sets; parts thereof › Microphones and stands therefor › Other
Korea export-side line (reference)
  • 8518101000전기통신용 마이크로폰(지름이 10밀리미터 이하이고, 높이가 3밀리미터 이하이며, 주파수 대역이 300헤르츠 내지 3.4킬로헤르츠인 것에 한한다)
  • 8518109000기타
  • 8518109010무선 마이크로폰(무선 마이크로폰 세트를 포함한다)
  • 8518109090기타

Top 3 United States rulings

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As of: 2026 HTS Rev.15

3Duty & tax

No preferential agreement with Korea — the basic / MFN rate applies.

LineDescriptionGeneralSpecialColumn 2
8518.10.40.00Microphones having a frequency range of 300 Hz to 3.4 kHz with a diameter of not exceeding 10 mm and a height not exceeding 3 mm, for telecommunication useFree—35%
8518.10.80OtherFree—35%
8518.10.80.30Microphones———
8518.10.80.40Other———

Additional tariffs (HTS Chapter 99: Section 232/301/122) may apply on top of the rate shown — check the current Chapter 99 notes.

  • · The United States has no federal value-added or goods-and-services tax. Customs collects duty and fees only.
  • · Merchandise processing fee: 0.3464% of the entered value on formal entries, subject to a minimum and maximum that are re-indexed each fiscal year; informal entries pay a flat amount instead.
  • · Harbor maintenance fee: 0.125% of the value on cargo arriving by vessel.
  • · State sales or use tax may apply to the onward sale or use of the goods and is administered by state revenue departments, not by CBP.
  • · Chapter 99 additional duties (Section 232, Section 301, any surcharge in force) are added to the ordinary rate; verify what applies on the entry date.

Landed-cost estimate

Duty rate used
0%
Customs value
—
Duty
—
Federal VAT / GST
—
Estimated total
—

A rough estimate. The real amount depends on valuation, classification and origin determination.

As of: 2026 HTS Rev.15

4Requirements

  • chapterFCC

    Electrical machinery/equipment incl. radiofrequency devices - FCC equipment authorization (47 CFR Part 2 Subpart K). NOTE: FCC states there is NO direct HTS-to-FCC mapping; Form 740 eliminated 2017-11-02. Broad heuristic - RF-device subset only.

    Confidence:
    chapter-heuristic
    fcc.gov

CBP does not publish a complete per-HS PGA flag file, so this is mapped with a chapter/heading heuristic.

Agencies involved

  • U.S. Customs and Border Protection (CBP)Clears imports, assesses duty and fees, and enforces other agencies' requirements at the bordercbp.gov
  • U.S. International Trade CommissionPublishes the Harmonized Tariff Schedule of the United States, including the Chapter 99 additional-duty provisionshts.usitc.gov
  • U.S. Food and Drug Administration (FDA)Food, drugs, medical devices, cosmetics; Prior Notice and MoCRA registration and listingfda.gov
  • USDA Animal and Plant Health Inspection Service (APHIS)Plant and animal products, permits and phytosanitary requirementsaphis.usda.gov
  • Federal Communications Commission (FCC)Radio-frequency devices and equipment authorisationfcc.gov
  • Consumer Product Safety Commission (CPSC)Consumer products and children's product certificationcpsc.gov

As of: 2026-08-27

5Documents

Korea export documents

  • Export declaration (수출신고서)
    Issued by:
    Exporter or customs broker, filed in UNI-PASS
    When:
    Before loading

    Carries the HS code, quantity, value, terms of sale, origin and whether drawback will be claimed.

    Official page
  • Export declaration certificate (수출신고필증)
    Issued by:
    Customs
    When:
    Issued when the declaration is accepted

    Used for zero-rated VAT, duty drawback claims, trade finance and insurance.

    Official page
  • Commercial invoice
    Issued by:
    Exporter
    When:
    With the shipping documents

    The destination customs authority uses it to set the customs value, so description, quantity, unit price, terms and origin must be accurate.

    Official page
  • Packing list
    Issued by:
    Exporter
    When:
    With the shipping documents

    Carton-level contents, weights, dimensions and marks.

    Official page
  • Bill of lading or air waybill
    Issued by:
    Carrier or freight forwarder
    When:
    Issued after loading

    Used for payment, including under a letter of credit, and for the buyer to take delivery.

    Official page
  • FTA certificate of origin
    Issued by:
    Customs, the Korea Chamber of Commerce and Industry, or the exporter under self-certification
    When:
    Before the buyer claims preference

    KORUS is self-certified with no prescribed form; the Korea-China FTA is authority-issued; RCEP follows the mechanism in the agreement. There is no agreement with Taiwan.

    Official page
  • Strategic goods determination or export licence
    Issued by:
    Korea Strategic Trade Institute (KOSTI), Ministry of Trade, Industry and Energy
    When:
    Before exporting the item concerned

    Dual-use items go through self-classification or an expert determination, and an export licence where one is required.

    Official page
  • Health or quarantine certificate for export
    Issued by:
    MFDS, Animal and Plant Quarantine Agency and others
    When:
    When the destination requires it

    For example a health certificate for exported food, a phytosanitary certificate, or an animal quarantine certificate. Food exported to mainland China additionally requires GACC overseas manufacturer registration.

    Official page
  • Duty drawback claim documents
    Issued by:
    Exporter
    When:
    After the export is performed

    Depending on whether the fixed-rate or the individual method is used, import declaration certificates and basic raw material tax payment certificates are needed.

    Official page

United States import documents

  • CBP Form 3461, Entry/Immediate Delivery
    Issued by:
    U.S. Customs and Border Protection
    When:
    At or before arrival, filed electronically in ACE

    The release document. It may generally be filed up to five days before arrival.

    Official page
  • CBP Form 7501, Entry Summary
    Issued by:
    U.S. Customs and Border Protection
    When:
    Within 10 working days of release

    Carries the HTSUS classification, value and duty calculation. Duty may be paid entry by entry or on a periodic monthly statement.

    Official page
  • Commercial invoice
    Issued by:
    Seller or exporter
    When:
    With the entry

    Should identify buyer and seller, describe the goods, and state quantity, unit and total price, currency, terms of sale and country of origin.

    Official page
  • Packing list
    Issued by:
    Seller or exporter
    When:
    With the entry

    Carton-level contents, weights and marks, used during examination.

    Official page
  • Bill of lading or air waybill
    Issued by:
    Carrier or freight forwarder
    When:
    Issued at loading

    Evidence of the contract of carriage and of the right to take delivery.

    Official page
  • Importer Security Filing (ISF 10+2)
    Issued by:
    Importer or its agent
    When:
    At least 24 hours before the cargo is loaded onto the vessel

    Ocean cargo only. It does not apply to air, truck or rail shipments.

    Official page
  • Customs bond, single transaction or continuous
    Issued by:
    Surety licensed by the U.S. Treasury
    When:
    In place before the entry is filed

    Required for formal entries and for the new postal informal entry process.

    Official page
  • Free trade agreement claim of origin
    Issued by:
    Exporter, producer or importer
    When:
    Held at the time the claim is made

    For Korean-origin goods, KORUS uses self-certification with no prescribed form; the claim is made on the entry using the special program indicator KR. Taiwan and mainland China have no free trade agreement with the United States.

    Official page
  • Partner government agency data
    Issued by:
    FDA, USDA, FCC, CPSC, EPA and others
    When:
    With the entry

    Examples: FDA Prior Notice for food, cosmetic facility registration and product listing under MoCRA with a named U.S. responsible person, FCC declarations for radio-frequency devices, CPSC certificates for children's products.

    Official page

6Procedure

  1. Pre-loading filingsThe importer or its agent files the Importer Security Filing (ISF 10+2) at least 24 hours before the cargo is loaded onto the vessel, and the carrier files its advance cargo manifest on the same 24-hour timeline.
  2. Entry filingCBP Form 3461 is filed in ACE, generally up to five days before arrival. Entry must be made within 15 calendar days of arrival, otherwise the goods are moved to a General Order warehouse.
  3. Review, examination and agency holdsCBP may select the shipment for document review, X-ray or a physical examination, and a partner government agency such as FDA, USDA or CPSC may place its own hold.
  4. ReleaseOnce CBP and any agency holds are cleared, the goods are released and may leave the port.
  5. Entry summary and paymentCBP Form 7501 is filed within 10 working days of release with duty, merchandise processing fee and harbor maintenance fee, paid entry by entry or on a periodic monthly statement.
  6. LiquidationCBP fixes the final duty at liquidation, normally within 314 days of entry. Post-summary corrections and protests have their own separate deadlines.
  1. Advance manifestThe air carrier transmits its advance cargo information before arrival. The Importer Security Filing does not apply to air cargo.
  2. Entry filingCBP Form 3461 is filed in ACE, commonly before the aircraft lands, so that release can follow shortly after arrival.
  3. Review and agency holdsCBP and partner government agencies review the entry and may examine the shipment at the airport cargo facility.
  4. Release and deliveryAfter release the goods leave the bonded air cargo facility.
  5. Entry summary and liquidationCBP Form 7501 and duty follow within 10 working days of release, then liquidation as for ocean cargo.
  1. Advance dataThe express consignment operator or the postal operator transmits shipment data to CBP before arrival.
  2. EntrySince 2026-06-24 low-value goods can no longer be released from the manifest. Express shipments are entered as informal entries, normally Entry Type 11, and anything above US$2,500 requires a formal entry.
  3. Mail shipmentsSince 2026-07-24 mail shipments valued at US$2,500 or less and classifiable in HTSUS chapters 1 to 97 may use the postal informal entry process, filed by a licensed customs broker or by the owner or purchaser, with a basic importation and entry bond in place.
  4. Duty assessment and paymentDuty and fees are calculated on the declared value. Express operators normally advance the duty and bill the buyer; under the postal process duty is due no later than the 7th day of the month following the package's arrival.
  5. Agency screening and deliveryFood, cosmetics, drugs, radio devices and children's products still require their agency data, and goods subject to quota, antidumping or countervailing duties, Chapter 98 or 99 duties, or a free trade agreement claim are excluded from the postal informal process.
  1. Declaration on arrivalTravellers declare everything acquired abroad, on CBP Form 6059B or its electronic equivalent, and answer the CBP officer's questions at the port of entry.
  2. Personal exemptionsReturning U.S. residents generally have a personal exemption of US$800. Non-residents' accompanied personal and household articles of US$200 or less remain exempt under 19 U.S.C. 1321(a)(2)(B).
  3. Commercial merchandiseGoods carried for resale are not covered by a personal exemption. They require an informal or formal entry like any other import, and partner government agency rules still apply.
  4. PaymentDuty on declared goods above the exemption is paid at the port of entry before the traveller leaves the customs area.
Show Korea export-side steps
  1. Pre-shipment reviewFix the HS code and determine whether the item is a strategic good. Destination-side registrations, such as GACC registration for food going to mainland China or MoCRA registration for cosmetics going to the United States, must be completed before shipment.
  2. Export declarationThe exporter or a customs broker files the declaration in UNI-PASS. If drawback will be claimed, the relevant fields are completed at this point.
  3. Review, examination and acceptanceCustoms reviews the documents, examines the goods where necessary, accepts the declaration and issues the export declaration certificate.
  4. Delivery and loadingThe container is delivered to the CY or CFS and loaded. Bonded transport is used where the goods have to move to another customs district.
  5. Loading deadlineLoading must be completed within 30 days of acceptance. If a delay is expected, an extension of the loading deadline is requested.
  6. Documents and follow-upCollect the bill of lading for payment, then file the zero-rated VAT return and the duty drawback claim.

7Difficulty

Take care

Score: 0.46

A signal derived from public data, not advice.

Why this reading

  • regime[FCC] Wired speakers/headphones sit at SDoC level; Bluetooth models need FCC Certification and an FCC ID.fcc.gov2026-09-07
  • requirement1 destination import requirement(s) found: Electrical machinery/equipment incl. radiofrequency devices fcc.gov2026-09-07
  • ambiguityClassification is contested — rulings for this HS6 scatter across several subheadings and are often decided against neighbouring codesrulings.cbp.gov2026-09-07
  • timingSince 2025-08-29 Executive Order 14324 has suspended duty-free de minimis entry for shipments from every country. Parcels are now dutiable and need an entry with HS classification and origin, which structurally raises difficulty for small consignments.federalregister.gov2026-09-07

Components

Import requirements0.34Electrical machinery/equipment incl. radiofrequency devices - FCC equipment authorization (47 CFR Part 2 Subpart K). NOTE: FCC states there is NO direct HTS-to-FCC mapping; Form 740 eliminated 2017-11 fcc.govconfidence=chapter-heuristic — CBP는 HS별 PGA 플래그 전량 공개 파일을 제공하지 않아 chapter/heading 휴리스틱 매핑을 사용함 customs_v0.sqlite:us_requirements
Classification ambiguity0.80US 결정례 38건 · 하위 세번 5종으로 분산 rulings.cbp.govUS CROSS 38건 중 복수 세번 결정 비율 39% · 같은 사건에서 함께 검토된 다른 HS6 23개 rulings.cbp.gov
Regulatory regime0.28FCC (SDoC, or Certification if wireless) fcc.gov
Korea origin-side note: Korea’s customs-verified requirement list is import-side only; export controls (Foreign Trade Act, strategic items) must be checked separately. unipass.customs.go.kr

As of: 2026-09-07

8Cases

Show rulings from other countries (15)

Sources: Federal Register: Indefinite Suspension of the De Minimis Exemption for Merchandise Arriving Through All Modes Other Than the International Postal Network · Federal Register: Indefinite Suspension of the De Minimis Exemption for Mail Shipments and New Postal Informal Entry Process · Federal Register: Notice of Implementation of Executive Order 14324, Suspending Duty-Free De Minimis Treatment for All Countries · CBP Form 7501, Entry Summary (revision 02/26) · CBP: Importer Security Filing (10+2) · Harmonized Tariff Schedule of the United States · Supreme Court of the United States: Learning Resources, Inc. v. Trump (No. 24-1287) · FDA: Registration and Listing of Cosmetic Product Facilities and Products · Korea Customs Service: Export clearance · Korea Customs Service UNI-PASS · Korea Customs Service FTA Portal · Korea Strategic Trade Institute (Yestrade) · Korea Law Information Center: Customs Act, Foreign Trade Act · Animal and Plant Quarantine Agency

I am a: Customs broker — Changes which blocks are emphasised