When I first began helping overseas buyers import products from China, one challenge appeared over and over again: tariff codes. Many customers saw these numbers on invoices and customs forms but didn’t understand their purpose. Yet, these codes directly affect taxes, clearance speed, and even whether a shipment gets stuck.

A tariff code is a numerical classification used by customs to identify goods, determine duty rates, and apply import regulations.

Understanding tariff codes helps you predict taxes, prepare correct documents, and avoid customs delays.

Why do tariff codes matter for international shipping?

Even a small mistake in your tariff code can cause big issues in customs clearance.

**Tariff codes matter because they determine import duties, VAT, customs requirements, and any restrictions or certifications needed for your goods.

Why this matters for your shipment

Common problems I see

• wrong duty rate charged
• goods flagged for inspection
• customs asking for additional documents
• delays due to “incorrect HS code”
• unexpected taxes due to misclassification

These issues can slow your shipments and increase your costs.

How I help buyers

I verify HS/tariff codes with suppliers, check international databases, correct mismatches, and prepare clean customs documents—so your goods move efficiently.

What is a tariff code?

Tariff codes are part of a global classification system used by most countries.

A tariff code is a standardized set of numbers used by customs to classify a product and determine its duty and tax requirements.

Key elements of tariff codes

Also known as:

• HS Code (Harmonized System Code)
• HTS Code (Harmonized Tariff Schedule)
• CN Code (EU Combined Nomenclature)
• Taric Code (EU import classification)

Structure example

A typical HS code looks like:
850440 — “Power supply units / chargers”

Each digit adds more detail as the classification goes deeper.

Why every country builds on HS codes

Most countries use the same first 6 digits (HS), and then add extra digits to define local taxes or regulations.

How do tariff codes work?

Tariff codes are more than just numbers—they describe exactly what your product is.

Tariff codes work by grouping products into categories so customs authorities can apply duty rates, taxes, and import rules correctly.

How customs uses your tariff code

1. Product identification

Customs determines what your item is.

2. Duty rate calculation

Each tariff code has an assigned tax rate.

3. VAT and additional tax calculation

Used to calculate total import value.

4. Regulatory checks

Some codes require certificates, permits, or inspections.

5. Trade policy application

Customs applies:

• anti-dumping duties
• trade agreements
• import restrictions

How I help with this step

I check codes with customs databases, evaluate duty levels, and confirm with suppliers to avoid classification issues.

How to find the correct tariff code for your goods

Finding the right code is easier when you know where to look.

You can find tariff codes through customs websites, HS code search engines, supplier catalogs, or by consulting your freight forwarder or customs broker.

Best ways to identify your tariff code

1. Use your local customs database

• UK: Trade Tariff
• US: HTS Search
• EU: TARIC

2. Ask your supplier

Factories often know HS codes for their products.

3. Use product description search tools

Online HS lookup tools help match your item.

4. Ask your customs broker or forwarder

Especially important for sensitive or complex products.

How I determine codes for buyers

I study product photos, material composition, function, and supplier information. Then I cross-check with customs databases to confirm the correct classification.

How tariff codes affect taxes and duties

Your landing cost depends heavily on your tariff code.

Tariff codes affect your import duty rate, VAT calculation, and any additional taxes applied to your shipment.

Examples of how tariff codes change cost

Electronics HS 850440

Duty: 0–2.7% depending on country

Apparel HS 6109 (T-shirts)

Duty: 10–12%

Furniture HS 9403

Duty: 0–6%

A wrong code can increase your duty rate by 10% or more.

How I help lower import taxes

I check whether your product qualifies for lower duty categories and verify the best possible classification legally.

What happens if your tariff code is incorrect?

Incorrect codes can cause problems that slow down your entire supply chain.

**If your tariff code is incorrect, customs may delay the shipment, reclassify the goods, request extra documents, or apply incorrect duties.

Risks of using the wrong tariff code

1. Additional taxes

You may pay a higher (or lower) duty rate.

2. Shipment delays

Customs may hold your goods for inspection.

3. Penalties

Repeated mistakes may lead to fines.

4. Return-to-sender in extreme cases

Some high-risk products face removal or disposal.

How I prevent these issues

I check documentation, review codes before shipment, and ensure alignment between invoice, packing list, and customs declarations.

When should you review or update your tariff code?

Many products change classification as they evolve.

You should review your tariff code whenever your product changes, you enter a new market, or customs updates regulations.

Review your tariff code if:

Product changes

• new materials
• new features
• new packaging

Market changes

• shipping to a new country
• different local tariff schedules

Regulation changes

• annual HS code updates
• new trade agreements

How I help

I review codes regularly for buyers and update documentation to match the latest customs rules.

Conclusion

A tariff code is a crucial classification number that determines tax rates, customs rules, and import requirements for your goods. Understanding and using the correct tariff code helps you avoid delays, control your costs, and ensure smooth customs clearance. My team helps identify accurate tariff codes, prepare compliant documents, and guide you through customs processes—so your shipments move quickly and safely from China to your destination. If you need help choosing the right tariff code for your product, I’m always ready to assist.