Do I Pay Tax on Supplements or Vitamins Shipped to Taiwan? Quantity Limits and Dosage Classifications at a Glance

Quick answer

Sources: Taiwan FDA (Food and Drug Administration, MOHW); Customs Administration, Ministry of Finance; Laws & Regulations Database of the Republic of China (see references at the end)

Last updated: 2026-09-23 (added the status of the 10% tariff on US supplements under the Taiwan–US agreement, the inspection-exemption threshold for non-tablet foods, and the X4 declaration rule; dosage classifications based on the standards in effect since 2024-04-18)

Do supplements shipped to Taiwan incur tariffs? What are the quantity limits?

Supplements carry a 30% import tariff, and shipments with a customs value within NT$2,000 are tax-exempt. Supplements in tablet or capsule form fall under tariff code 2106.90.99.20. When the customs value exceeds NT$2,000, a 30% tariff applies first, then 5% business tax is levied on "customs value + tariff"; and once you exceed 6 duty-free releases within a half-year, the exemption no longer applies. As for quantity, personal-use imports are exempt from applying for imported-food inspection only if they stay within 12 bottles of each type and 36 bottles in total, in original packaging only.

📊 Core data (free to cite)

  • Tariff: food preparations in tablet or capsule form (2106.90.99.20) 30%; according to the Control Yuan investigation report of 2024-09-04, tariffs on supplement-related tariff lines range from 2.5% to 30%.
  • Duty-free threshold: customs value ≤ NT$2,000 is exempt from tariff and business tax; once duty-free releases exceed 6 in a half-year (January–June, July–December), tax applies from the 7th release.
  • Business tax: 5%, levied on "customs value + tariff"; example: a US$120 multivitamin order (customs value NT$3,779) incurs about NT$1,379 in total import taxes.
  • Personal-use limits: tablets and capsules 12 bottles of each type, 36 bottles in total; non-tablet/capsule foods (such as protein powder and drink powders) are exempt from inspection if a single item is valued at US$1,000 or less and weighs 6 kg or less.
  • Declaration: supplements must be cleared with a regular import declaration (X4), not a simplified express declaration; in October 2021, Taipei Customs found 6 consignments—more than 10,000 items—of iHerb health foods and drugs wrongly filed under simplified declarations, and they were returned.
  • US origin: under the Taiwan–US Agreement on Reciprocal Trade (signed 2026-02), Taiwan committed to cutting the tariff on US supplements from 30% to 10%; this takes effect only after both sides complete their domestic procedures.

Supplements in tablet or capsule form

When imported by parcel post or freight for personal use and not for sale, the limit is 12 bottles (boxes, cans, packs, or bags) of each type, no more than 36 bottles in total, and only in the original packaging. Shipments meeting these conditions are exempt from applying to the Taiwan FDA for imported-food inspection. This applies to fish oil, lutein, probiotics, calcium tablets, and ordinary vitamins. The rule took effect on 2015-12-01.

Two boundaries that are easy to cross: ① Businesses importing food products in tablet or capsule form “for sale” must complete inspection and registration under Article 21 of the Act Governing Food Safety and Sanitation regardless of dosage (applications have been fully online since 2024/1/1). Personal-use imports within the limits above are exempt. ② Reselling products after importing them under the personal-use exemption violates Article 30 of the Act Governing Food Safety and Sanitation and may result in a fine of NT$30,000 to NT$3,000,000. A conspicuously large quantity of the same product, such as 20 bottles or more, is likely to be deemed commercial use.

What are the personal-use limits by category? Food, Western medicine, and Chinese medicine compared

Many people remember only “12/36,” but the limits differ for food, Western medicines, Chinese medicines, and cosmetics. Prescription drugs in particular are limited by the amount of medication, not the number of bottles:

CategoryLimit per typeOverall limit
Food in tablet or capsule form12 bottles (boxes, cans, packs, or bags)36 bottles, in original packaging only
Non-tablet/capsule foods (protein powder, drink powders, etc.)Single item valued at US$1,000 or less and weighing 6 kg or less— (excluding hairy crabs and beef products prohibited from import)
Western medicines (non-prescription drugs)12 bottles (boxes, cans, tubes, or sticks)36 bottles
Western medicines (prescription drugs, without a prescription)Limited to a 2-month supply—
Western medicines (prescription drugs, with a physician’s prescription)Must not exceed the reasonable quantity stated in the prescriptionLimited to a 6-month supply
Chinese medicinal materialsUp to 1 kg of each typeNo more than 12 types in total
Chinese medicine preparations (drugs)12 bottles (boxes)36 bottles
Specific-purpose cosmetics (personal-use limit abolished)Abolished as of 2024-07-01 (formerly 12 bottles)— (no current bottle-count cap can be found; may not be resold)

※ Compiled from the Customs Administration, Ministry of Finance limits for importing “Medicines, Cosmetics, and Medical Devices for Personal Use” (medicine and food sections); the cosmetics personal-use quantity limit was repealed on 2024-07-01 under Announcement No. 1131603792, and the cosmetics figures on that page no longer apply. Quantities above these limits require an application under the applicable rules or formal customs declaration.

At what dosage is a vitamin a drug? Food vs OTC / non-prescription drug vs prescription drug

For the same vitamin, a different dosage means a different regulatory classification: a low dose is food, while a high dose is a drug. Drug imports are subject to stricter rules, so check the “daily dosage,” not the amount per tablet, before purchasing.

⚠️ This table changed in 2024, but most information online still shows the old rules

On 2024-04-18, the Taiwan FDA announced amendments under MOHW Order No. 1131401394 and simultaneously renamed the standards the “Standards for the Classification of Oral Vitamin or Mineral Products” (formerly the “Standards for the Classification of Vitamin Products”). The maximum daily dosage for vitamin D as an OTC / non-prescription drug was raised from 1,000 IU to 2,000 IU (50 μg), while that for vitamin C was raised from 1,000 mg to 2,000 mg. The limit for vitamin B6 was reduced from 200 mg to 100 mg. The table below shows the figures currently in effect.

VitaminFood (exempt upper limit)OTC / non-prescription drugPrescription drug
Vitamin A≤ 10,000 IU (3,000 μg RE)≤ 10,000 IU> 10,000 IU
Vitamin D≤ 800 IU (20 μg)800–2,000 IU> 2,000 IU (50 μg)
Vitamin E≤ 400 IU (268 mg α-TE)≤ 400 IU> 400 IU
Vitamin K3≤ 100 μg——
Vitamin B1≤ 50 mg50–250 mg> 250 mg
Vitamin B2≤ 100 mg≤ 100 mg> 100 mg
Vitamin B6≤ 80 mg80–100 mg> 100 mg
Vitamin B12≤ 1,000 μg≤ 1,000 μg> 1,000 μg
Vitamin C≤ 1,000 mg1,000–2,000 mg> 2,000 mg

※ Unit conversions: vitamin D, 1 μg = 40 IU; vitamin E, 400 IU = 268 mg α-TE; vitamin A, 3 μg RE = 10 IU. A “—” in the OTC / non-prescription drug column means that the exempt upper limit and the OTC / non-prescription drug upper limit are the same; any amount above it is classified directly as a prescription drug. Other exempt upper limits are 35 mg NE for Niacin, 800 μg for folic acid, 500 mg for pantothenic acid, and 3,500 mg for choline.

Exempt upper limits for minerals (amounts above these limits are regulated as drugs)

Thresholds also apply when buying calcium tablets, magnesium tablets, or multiminerals. The following are the maximum daily dosages that are not regulated as drugs:

MineralDaily maximumMineralDaily maximum
Calcium1,800 mgPhosphorus1,200 mg
Magnesium350 mgIron45 mg
Zinc30 mgCopper8 mg
Manganese9 mgFluoride3 mg
Potassium80 mgSelenium200 μg
Iodine195 μgMolybdenum350 μg
Chromium200 μg (trivalent chromium only)Boron700 μg

※ Product labeling for phosphorus must state, “People with impaired kidney function should use this product with caution.” Chromium is limited to trivalent chromium and must not contain hexavalent chromium.

The combination-product pitfall for multivitamins

🔑 If one ingredient exceeds the limit, the entire bottle becomes a drug

The standards expressly provide that for combination vitamin and mineral products, if any one ingredient exceeds the “maximum daily dosage that is not regulated as a drug,” the entire product is classified as a drug. In other words, even if the other 20 ingredients in a multivitamin tablet comply, a daily vitamin D dosage of 1,000 IU or a zinc dosage of 50 mg means the bottle is a drug rather than food.

💡 Practical advice: When buying multivitamins, especially European or U.S. “high potency” or “mega” products, compare every ingredient in the label’s “recommended daily dosage (per serving)” against the two tables above. Do not look only at the amount per tablet—many products recommend 2–3 tablets per serving, and the multiplied total is the actual daily dosage.

Biggest red flag: Melatonin is a “drug”

⛔ Melatonin is a drug in Taiwan, not a supplement

On 1996-10-15 (ROC year 85), the health authority announced that products labeled as containing melatonin must be regulated as drugs. To date, no melatonin product in Taiwan has legally obtained a drug permit license, so it may not be sold domestically. Consumers may only purchase it abroad and bring it back to Taiwan “for personal use,” with quantities assessed strictly under the limits for personal-use medicines.

Penalties for violations are severe: A drug imported without approval is a banned drug under Article 22, Paragraph 1, Item 2 of the Pharmaceutical Affairs Act (a drug manufactured without approval is a counterfeit drug under Article 20); under Article 82, manufacturing or importing counterfeit or banned drugs is punishable by imprisonment for up to 10 years and a possible fine of up to NT$100,000,000. Anyone who knowingly sells a banned drug is punishable under Article 83 by imprisonment for up to 7 years and a possible fine of up to NT$50,000,000. Carrying excessive quantities or reselling carries extremely high risk.

The only exception

Dried animal pineal gland powder containing less than 20 ppm of melatonin may be used as a food ingredient. This is currently the only situation not regulated as a drug and is unrelated to commercially sold Melatonin tablets.

Other items often purchased by mistake that are “actually drugs” include high-dose vitamin D3 (daily dosage above 2,000 IU), certain hormones such as DHEA, and products that claim therapeutic effects. The safest approach is to check the ingredients and daily dosage before ordering.

Import taxes and whether stocking up on iHerb is worthwhile

Supplements in tablet or capsule form fall under tariff code 2106.90.99.20, “Food preparations in tablet or capsule form,” with a 30% tariff (relatively high; import regulations 511/F01). However, shipments with a customs value ≤ NT$2,000 are tax-exempt, so most single-bottle orders are tax-exempt, while combined stock-up orders incur heavy tax:

Has the tariff on US supplements dropped to 10%?

Not yet—the current rate is still 30%. The Taiwan–US Agreement on Reciprocal Trade was signed on 2026-02-12 (US Eastern Time), committing to cut the import tariff on US supplements from 30% to 10%. Under the Treaty Conclusion Act, however, it takes effect only after both sides complete their domestic procedures (on Taiwan's side, review by the Legislative Yuan). As of this page's update date (2026-09-23), the column 1 rate for 2106.90.99.20 in our tariff database is still 30%. Once in effect, it will apply only to goods of US origin; items shipped by iHerb but made in other countries are not covered. And since single parcels with a customs value within NT$2,000 are already tax-exempt, the cut mainly affects large combined stock-up parcels.

Use the right declaration: according to a Customs Administration, Ministry of Finance press release of 2021-11-23, imported supplements must be cleared with a regular import declaration (X4). In early October of that year, Taipei Customs found 6 consignments—more than 10,000 items—of iHerb health foods and drugs declared on simplified declaration forms; most were returned because the power of attorney, commercial invoice, and other documents could not be provided. In addition, according to the Ministry of Finance reply cited in the Control Yuan investigation report of 2024-09-04, tariffs on supplement-related tariff lines range from 2.5% to 30%: food preparations in tablet or capsule form 30%, and special nutritional foods exclusively for patients (2106.90.20.20) 10%. The actual classification is determined by customs based on ingredients and form.

Scenario Click to add this to the calculator Product price Tariff code Tariff rate Customs value Import tax
Single bottle of fish oilClick to add this to the calculator US$25 2106.90.99.20 30% NT$787 Tax-exempt
Single bottle of luteinClick to add this to the calculator US$30 2106.90.99.20 30% NT$945 Tax-exempt
Single bottle of probioticsClick to add this to the calculator US$35 2106.90.99.20 30% NT$1,102 Tax-exempt
Combined stock-up order of assorted supplementsClick to add this to the calculator US$120 2106.90.99.20 30% NT$3,779 Taxed: approximately NT$1,379

Stock-up reminder: If many items are combined into one package and the customs value exceeds NT$2,000, a 30% tariff applies, followed by 5% business tax (the US$120 example above incurs approximately NT$1,379 in tax). Together with the limit of 6 tax-exempt shipments every six months, taxes can erase the discount. Estimate the tax on the whole shipment before ordering and stay within the limit of 12 of each type and 36 in total. Goods in the same shipment may not be declared separately, and once the same taxpayer exceeds 6 duty-free releases in a half-year period, the exemption no longer applies.

Related tools and guides

Frequently asked questions

Are there quantity limits for supplements and vitamins shipped to Taiwan?
Yes. Food products in tablet or capsule form imported for personal use and not for sale are limited to 12 bottles (boxes, cans, packs, or bags) of each type and 36 bottles in total, and must remain in their original packaging. Shipments meeting these conditions are exempt from applying for imported-food inspection. Businesses importing products for sale must complete inspection and registration under Article 21 of the Act Governing Food Safety and Sanitation regardless of dosage.
My vitamin C contains 1,000 mg per tablet. Will it be treated as a drug?
Under the current standards effective 2024-04-18, a daily vitamin C dosage of 1,000 mg or less is not regulated as a drug and is classified as food; 1,000–2,000 mg is an OTC / non-prescription drug, and only a dosage above 2,000 mg is a prescription drug. Note that the threshold is based on the “daily dosage.” If the product recommends 2 tablets per day × 1,000 mg = 2,000 mg, it falls within the OTC / non-prescription drug range. The claim circulating online that “anything above 1,000 mg is a prescription drug” reflects the rules in effect before 2024.
Will high-dose vitamin D be treated as a drug?
Yes, but the threshold has been relaxed. Under the current rules, a daily dosage of 800 IU (20 μg) or less is food, 800–2,000 IU is an OTC / non-prescription drug, and only a dosage above 2,000 IU (50 μg) is a prescription drug. The former 1,000 IU prescription-drug threshold was revised on 2024-04-18.
Can one ingredient above the limit cause a multivitamin to be classified as a drug?
Yes. The standards expressly provide that if any one ingredient in a combination product exceeds the “maximum daily dosage that is not regulated as a drug,” the entire product is classified as a drug. When buying multivitamins, compare every ingredient based on the “recommended daily dosage.” Many products recommend 2–3 tablets per serving, and the multiplied total is the actual daily dosage.
Can Melatonin be shipped to Taiwan?
Extra caution is required. Melatonin has been regulated as a drug in Taiwan since 1996-10-15 (ROC year 85). No domestic pharmaceutical manufacturer has obtained a drug permit license for it, so it cannot be sold legally and may only be purchased abroad for personal use. A drug imported without approval is a banned drug under Article 22, Paragraph 1, Item 2 of the Pharmaceutical Affairs Act, and under Article 82 importing it is punishable by imprisonment for up to 10 years and a possible fine of up to NT$100,000,000. Anyone who knowingly sells a banned drug may be punished under Article 83 by imprisonment for up to 7 years and a possible fine of up to NT$50,000,000.
How much customs duty applies to imported supplements?
Food preparations in tablet or capsule form fall under tariff code 2106.90.99.20 and carry a 30% tariff, which is relatively high. However, a customs value (product + shipping + insurance) within NT$2,000 is exempt from customs duty and business tax. Most single bottles of fish oil, lutein, or probiotics fall within the tax exemption. Above the threshold, a 30% tariff applies, followed by 5% business tax.
Has the tariff on US supplements already dropped to 10%?
Not yet in effect. The Taiwan–US Agreement on Reciprocal Trade, signed in February 2026, commits to cutting the tariff on US supplements from 30% to 10%, but it will be implemented only after both sides complete their domestic procedures (on Taiwan's side, review by the Legislative Yuan). Until then, food preparations in tablet or capsule form remain subject to 30%, and the future cut will apply only to goods of US origin. Single parcels with a customs value within NT$2,000 are already tax-exempt.
What is the difference between "supplements" and "health food"?
"Health food" is a legal term under the Health Food Control Act, referring to food that has been registered with the Ministry of Health and Welfare and holds a permit (the green "little man" logo), allowing it to state health benefits. Most of what people call supplements are simply foods in tablet or capsule form and may not claim health benefits. Manufacturing or importing health food without approval is punishable under Article 21 of the same Act by imprisonment for up to 3 years and a possible fine of up to NT$1,000,000.
Is it worthwhile to stock up on iHerb products for shipment to Taiwan?
Calculate the costs carefully. Most single-bottle orders are tax-exempt, but if many items are combined into one package and its customs value exceeds NT$2,000, a 30% tariff applies. Together with the limit of 6 tax-exempt shipments every six months, taxes may erase the discount. Estimate the tax on the whole shipment before ordering and stay within the limit of 12 of each type and 36 in total. Goods in the same shipment may not be declared separately, and once the same taxpayer exceeds 6 duty-free releases in a half-year period, the exemption no longer applies.
Can fish oil, lutein, probiotics, and calcium tablets be shipped?
Yes. These ordinary supplements may be forwarded for personal use if they comply with the limit of 12 of each type and 36 in total. Avoid Melatonin, which is a drug; high-dose vitamins and minerals whose daily dosages exceed the exempt upper limits; and products that claim therapeutic effects.

Legal basis and official sources

This page is a reference guide intended to help readers understand the import rules for supplements and vitamins. Actual product classification (food, OTC / non-prescription drug, or prescription drug), dosage determination, quantity limits, tariff rates, and whether inspection and registration are required are subject to the regulations and determinations of the Taiwan FDA (Food and Drug Administration, MOHW) and the Customs Administration, Ministry of Finance. Ingredients such as Melatonin are regulated as drugs and subject to strict import restrictions. Regulations may change; refer to the latest announcements.

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Authority references

This page cites primary government, judicial, and academic sources from HowBridge’s customs reference index (1,171 records). Each item links to its original source.

Reference index data version: 2026-08-16