Code 2840 11 · Heading 2840

Anhydrous disodium tetraborate (refined borax)

This code covers disodium tetraborate, also called refined borax, when it is anhydrous. It does not cover the non-anhydrous form, other borates or peroxoborates.

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See the official tariff text

Official tariff text

Anhydrous disodium tetraborate "refined borax"

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section VI Products of the chemical or allied industries
Is it an inorganic or organic chemical; a pharmaceutical product; a fertilizer; a tanning or dye extract, pigment, paint, varnish, filler or printing ink; an essential oil, perfume, cosmetic or toilet product; soap, a surface-active, washing, cleaning, polishing or wax product; a protein, modified starch, glue or enzyme; an explosive, pyrotechnic article, match or other specified combustible material; a photographic or cinematographic product; or another chemical product?
✓
Step 2 · Chapter 28 Inorganic chemicals; organic or inorganic compounds… 1 of 11 chapters in section VI
Which named chemical or chemical family best describes the product—for example a metal, acid, oxide, salt, isotope, compound or another substance listed under this category?
✓
Step 3 · Heading 2840 Borates; peroxoborates "perborates" 39 of 50 headings under chapter 28
Is it disodium tetraborate (refined borax)—and, if so, is it anhydrous—or is it another borate or a peroxoborate (perborate)?
✓
Step 4 · Subheading 2840 11 Anhydrous disodium tetraborate "refined borax" 1 of 4 subheadings under heading 2840
Is it anhydrous disodium tetraborate (refined borax), non-anhydrous disodium tetraborate (refined borax), another borate, or a peroxoborate?

Full 8-digit codes

Pick the description that best matches your product.

1 code below this one

2840 11 00 Anhydrous disodium tetraborate "refined borax" Duty free Save

Compare the sibling codes

Classification decides the rate here: from 0.0% to 5.5%.

2840 11 Anhydrous disodium tetraborate "refined borax" you are here 0.0%
2840 19 Disodium tetraborate "refined borax" (excl. anhydrous) 0.0–5.3%
2840 20 Borates (excl. disodium tetraborate "refined borax") 0.0–5.3%
2840 30 Peroxoborates "perborates" 5.5%

Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

28.40.1100

Anhydrous

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU origin to use this rate.

Norwegian tariff data version 1.5/1.2, last checked Aug. 9, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

2840 11 00 00

Anhydrous

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1576, last checked Aug. 3, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 4 codes at this level

you are here 2840 11

Anhydrous disodium tetraborate "refined borax"

Next code 2840 19

Disodium tetraborate "refined borax" (excl. anhydrous)

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.