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Guides & Resources

Zentria Flow Blog

Plain-English guides on HS codes, tariffs, import duties, and compliance — written for importers worldwide.

Tariff Update

IEEPA Tariffs Struck Down — What US Importers Pay Now (2026)

The Supreme Court struck down the IEEPA tariffs on 20 Feb 2026. A 10% Section 122 surcharge followed until 24 July, when a 10–12.5% forced-labor Section 301 tariff took over. Full timeline and what applies now.

June 20268 min read
Import Basics

What Is Landed Cost? Definition, Formula & Calculator

Landed cost is the total cost of a product delivered to your warehouse — product price, freight, customs duty, surcharges, and more. Formula, worked example, and free calculator.

May 20267 min read
Trade Basics

Incoterms 2020 Explained: Complete Guide for Importers

FOB, CIF, DDP, DAP — Incoterms determine who pays freight, who holds insurance, and when risk transfers. All 11 terms with a FOB vs CIF comparison.

May 20269 min read
Import Guide

How to Calculate Import Duty: Step-by-Step Guide 2026

Import duty = customs value × duty rate + applicable surcharges. This step-by-step guide covers every component with a worked example and free calculator.

May 20268 min read
Tariff Basics

How Are Tariffs Calculated? Step-by-Step Import Duty Guide

MFN duty rate × customs value + applicable surcharges. This guide covers the full formula for calculating import tariffs, with a worked example and free calculator.

May 20266 min read
Customs & Compliance

Are Import Duties the Same as Tariffs?

Almost, but not exactly. Confusing them can lead to under-declared shipments and surprise invoices. Here's the clear distinction importers need to know.

May 20265 min read
Import Cost Recovery

Duty Drawback: How to Recover Up to 99% of Your Import Duties

Customs authorities allow importers to reclaim up to 99% of duties on goods that are re-exported or destroyed. Most eligible companies never file. Here's how.

May 20267 min read
Customs Exemptions

De Minimis Rule 2026 — Duty-Free Threshold & Global Guide

Many countries offer a duty-free threshold for low-value imports. 2026 policy changes mean eligibility has tightened in major markets. Country-by-country breakdown.

May 20266 min read
HS Code Guides

HS Codes for Clothing & Apparel — Complete 2026 Reference

Find the correct HS code for every clothing category — t-shirts, dresses, outerwear, footwear, and more. Includes duty rates and a free AI lookup tool.

May 20266 min read
Tariff Policy

Reciprocal Tariffs 2025–2026 — From Liberation Day to the Forced-Labor Tariff

April 2025's reciprocal tariffs (China peaked at 145%) were struck down in February 2026. Section 122 then applied a flat 10% until 24 July; now a forced-labor Section 301 tariff charges 10% or 12.5% by country. Timeline and current rates.

May 20268 min read
Country Tariff Guides

EU Tariffs 2026 — Import Duty Rates on Goods into Europe

EU Common Customs Tariff (CCT) duty rates by HS code, VAT rates per country, and free trade agreement opportunities for goods imported into the European Union.

May 20266 min read
Shopify Guide

Shopify Landed Cost: Know Your True Import Cost Before You Price

Shopify merchants sourcing overseas often underestimate landed cost by 40–60%. This guide covers the full calculation with a worked example.

May 20266 min read
Classification Guide

HS Code Lookup Guide: How to Find Any HS or HTS Code

Three methods to look up any HS code — AI description, product photo, or manual search. Includes chapter overview, rate examples, and tips for accurate classification.

May 20267 min read
Integrations

WooCommerce Supply Chain Management: Automate Landed Cost & Customs Checks

Connect your WooCommerce store to Zentria Flow and automatically calculate landed costs, HS codes, and duty estimates for every new order — no manual lookup required.

May 20266 min read
Integrations

İkas Supply Chain Management: HS Code & Landed Cost Automation for Turkish E-commerce

Connect your İkas store to Zentria Flow and automatically calculate HS codes, landed costs, and duty estimates for every order — built for Turkish e-commerce merchants.

May 20265 min read
Developer API

Landed Cost API: Embed Import Duty Calculation in Your App

The Zentria Flow Landed Cost API returns a complete cost breakdown — duty, VAT, freight surcharges, Section 301, forced-labor tariff and Section 232 stacking — in a single REST call. Sandbox free, 100 calls/month, no card.

May 20266 min read
Developer API

HS Code Classification API: Automate Tariff Classification Programmatically

Send a product name, description, or image URL and get back a validated 6-digit HS code with 8-digit HTS extension, duty rate, and country-specific VAT — via REST API. Sub-500ms median latency.

May 20265 min read
Developer API

US-China Tariff API: Section 301 + Forced-Labor Duty Stack Calculator

The US-China duty API returns the full stack: MFN + Section 301 (7.5–100%) + the 12.5% forced-labor tariff, with the U.S. note 52 exemptions and Section 232 applied. One call, correct 2026 total.

June 20265 min read
Import Guide

Anti-Dumping Duties: What Every Importer Must Know in 2026

Anti-dumping duties can add 20%–300% on top of normal MFN rates — yet many importers miss them entirely. How to identify, check, and factor anti-dumping into your landed cost before the shipment arrives.

May 20267 min read
Import Basics

Customs Valuation Explained: How Your Import Duty Base is Calculated

Customs duty isn't calculated on the invoice price alone. Transaction value, CIF adjustments, royalties, assists — all can change your duty base. The 6 WTO valuation methods explained with worked examples.

May 20268 min read
Cost Reduction

Free Trade Agreements: How to Qualify for 0% Import Duty

FTAs can cut your import duty to 0% — but only if you meet origin rules. Rules of origin, substantial transformation, and documentation requirements explained for USMCA, EU GSP, and CPTPP.

May 20269 min read
Compliance

Import Compliance Checklist: 10 Steps Before Your Shipment Arrives

Most customs problems — delays, exams, penalties — are caused by documentation errors that are entirely preventable. The 10-step pre-arrival checklist that professional importers run on every shipment.

May 20266 min read
China Tariffs

What Is Section 301? The China Tariff List Explained

Section 301 tariffs add 7.5%–25% on top of normal duties for Chinese-origin goods across four lists. If you import from China, this is almost certainly affecting your landed cost.

May 20265 min read
Customs & Classification

HTS Code vs HS Code: What's the Difference?

HS codes and HTS codes look similar but serve different purposes. The difference matters when filing US customs entries.

May 20264 min read
Customs & Classification

What is an HTS Code? Harmonized Tariff Schedule Codes Explained

An HTS code is the 10-digit number US Customs uses to classify every imported product. It determines your duty rate, FTA eligibility, and import restrictions.

May 20265 min read
Tariff Reference

Harmonized Tariff Schedule (HTS) — US Import Code Guide

The US HTS assigns a 10-digit code to every importable product and determines the duty rate, quota, and FTA eligibility. All 99 chapters explained.

May 20265 min read
China Tariffs

China Tariffs 2026 — Current US Import Duty Rates & Section 301 Guide

Section 301 tariffs on Chinese goods remain at 7.5%–25% across four lists. This guide covers every list, product-level rates, and de minimis changes.

May 20267 min read
Country Tariff Guides

Vietnam Tariffs 2026 — US Import Duty Rates by HS Code

Vietnam has no FTA with the US — most goods pay MFN rates (0–32%). Anti-dumping orders affect furniture, shrimp, and steel.

May 20266 min read
Country Tariff Guides

Japan Tariffs 2026 — US Import Duty Rates by HS Code

Japanese electronics enter the US at 0% under the IT Agreement, but cars face 27.5% (§232), and steel 25%.

May 20265 min read
Country Tariff Guides

Taiwan Tariffs 2026 — US Import Duty Rates & Sourcing Guide

Taiwan's semiconductors and electronics enter the US at 0% — no Section 301. A direct comparison vs China sourcing.

May 20265 min read
Country Tariff Guides

Thailand Tariffs 2026 — US Import Duty Rates by HS Code

Thailand has no Section 301 surcharges — a key advantage over China sourcing. Electronics enter at 0% (IT Agreement).

May 20265 min read
Country Tariff Guides

South Korea Tariffs 2026 — KORUS FTA, 0% Electronics & Import Duty Guide

Most South Korean goods enter the US at 0% under the KORUS FTA. Best FTA coverage in Asia.

May 20266 min read
Country Tariff Guides

Indonesia Tariffs 2026 — 10% Forced-Labor Tier, Import Duties & Sourcing Guide

Indonesian goods pay MFN plus the 10% forced-labor Section 301 tariff — 2.5 points below Vietnam and China. Key exports: apparel, furniture, shrimp, nickel.

May 20266 min read
HS Code Guides

FedEx HS Code Lookup — Customs Classification for FedEx Shipments

How to find and use HS codes for FedEx international shipments. Avoid customs delays and penalties with correct classification.

May 20264 min read
HS Code Guides

USPS HS Code Lookup — Customs Codes for USPS International Mail

Correct HS codes are required for all USPS international shipments. How to find the right code and avoid customs holds.

May 20264 min read
HS Code Guides

DHL HS Code Lookup — Harmonized Codes for DHL Shipments

DHL requires accurate HS codes on all commercial invoices. How to find the right code to avoid delays and penalties.

May 20264 min read
HS Code Guides

UPS HS Code Lookup — Tariff Codes for WorldShip & Paperless Invoice

Where the Tariff Code field lives in UPS WorldShip, what Paperless Invoice does and doesn't change, and why UPS brokerage fees are separate from duty.

August 20264 min read
HS Code Guides

HS Codes for Electronics 2026 — Laptops, Phones, TVs, Headphones

Complete HS / HTS code reference for electronics imports. Covers 26 categories including laptops (8471.30), smartphones (8517.13), headphones (8518.30), chargers, drones — with US MFN rates and Section 301 surcharges.

May 20266 min read
Customs Guides

CBP Form 7501 — US Customs Entry Summary Explained

Form 7501 is the document that declares your imported merchandise, calculates duties, and clears cargo through US customs. Every field, every deadline, and the 5 most costly filing errors explained.

May 20267 min read
Customs Guides

Import Duty from China to the UK — UKGT Rates, 20% VAT & the £135 Rule

No UK–China FTA means every Chinese import pays the full UK Global Tariff plus 20% import VAT. Rates by product, the £135 threshold, anti-dumping traps, and a worked example from Guangzhou to Felixstowe.

July 20268 min read
Customs Guides

How Much Is Import Tax in Indonesia? Duty + 11% PPN + PPh 22 Explained

Indonesia stacks three taxes on every import: duty (0–50%), 11% VAT, and 2.5–10% income tax at the border — with a USD 3 de minimis, the world's lowest. Full formula and worked example.

July 20267 min read
Customs Guides

Import Duty on Jewelry from India to USA — Gold, Silver & Diamond Rates

Gold jewelry 5–5.8%, imitation 11%, loose diamonds 0% — plus the 10% forced-labor tariff. De minimis rules, FTC marking requirements, and the valuation traps CBP audits on the India corridor.

July 20267 min read
Customs Guides

Import Fees from Canada to US — USMCA 0% vs the 10% Forced-Labor Tariff

The same product crosses the Canada–US border at 0% or 22%+ depending on one document. USMCA certification, the end of the $800 de minimis, the 10% forced-labor tariff on non-USMCA goods, and the reverse US→Canada rules.

July 20268 min read
Customs Guides

Car Import Duty — USA, Canada & UK Corridors Compared

US→Canada with RIV and GST, Japan→UK classics at 0% duty + 5% VAT, the US 25-year rule and the 25% chicken tax on trucks. Every major corridor with worked examples.

July 20269 min read
Customs Guides

Import Tax from Japan to US — Figures, Cameras, JDM Parts & Cars

Japanese goods now pay a 12.5% combined floor (the MFN rate counts toward it) and the $800 de minimis is gone. The catches: compound watch rates, and cars at 15% all-in under Section 232.

July 20267 min read
Customs Guides

Customs Duty in India — From UK, Canada & USA: BCD + IGST Explained

India stacks Basic Customs Duty, a 10% surcharge and IGST up to 28% — a typical consumer product lands 44% above invoice. The formula, the ₹5,000 gift trap, and Transfer of Residence rules.

July 20268 min read
Customs Guides

Import Duty from Europe to US — Germany & Italy Rates + the 10% Floor

EU goods pay a 10% combined floor — German machinery and Italian leather bags both land at 10% — and cars 15% all-in under §232. No US VAT, but don't pay EU VAT on exports. Worked examples included.

July 20267 min read
Customs Guides

Import Duty from USA to UK — UKGT Rates, 20% VAT & Courier Fees

Duty is the small part — the real costs are 20% VAT on the whole landed value and the courier's £8–£12 handling fee. The £135 rule and how to avoid double-paying US sales tax.

July 20267 min read
HS Code Guides

Plastic Products HS Codes — 3926.90 Duty Rate & Chapter 39 Guide

3926.90 is world trade's favorite catch-all — and customs' favorite challenge. The Chapter 39 code map with US/EU rates, the 40% China stack, and when plastic items classify outside Chapter 39 entirely.

July 20266 min read
Landed Cost

Free Landed Cost Excel Template — Working Formulas + Duty Stack

A real .xlsx download, no email wall: enter seven numbers and the full 2026 duty stack, MPF/HMF bounds, VAT and per-unit landed cost calculate automatically. Every formula explained line by line.

July 20266 min read
Landed Cost

Landed Cost vs COGS — What Goes Where, With Accounting Table

Freight-in capitalizes, freight-out expenses, duty goes into inventory — and reclaimable VAT belongs in neither. The classification table that makes imported-goods margins readable again.

July 20267 min read
Landed Cost

Profit Margin on Imported Products — Formula, Margin vs Markup, Targets

Two mistakes destroy import margins before the first sale: pricing off the invoice instead of landed cost, and confusing markup with margin. The correct formula and realistic targets per channel.

July 20267 min read
Landed Cost

Is Your Import Business Profitable? Unit Economics That Tell the Truth

Revenue up, P&L smiling, bank account shrinking. Three margin levels per SKU, break-even math, the cash-vs-P&L gap, and five silent profit leaks blended numbers can't show.

July 20268 min read
HS Code Guides

HS Codes for Furniture 2026 — Sofas, Chairs, Beds, Mattresses & More

Complete HTS code reference for furniture imports. 25% Section 301 on most China-sourced furniture, plus anti-dumping duties on wooden bedroom furniture (A-570-890) and mattresses (A-570-095). Sourcing alternatives included.

May 20266 min read
HS Code Guides

HS Codes for Footwear 2026 — Shoes, Boots, Sneakers & Sandals

Chapter 64 HTS code reference for footwear imports. Athletic sneakers face 27.5% (20% MFN + 7.5% S301). Waterproof rubber boots hit 62.5% combined duty from China. Sourcing alternatives in Vietnam, Bangladesh, and Indonesia.

May 20266 min read
Customs Guides

Commercial Invoice for Customs: CBP Requirements & Complete Guide 2026

The 16 required CBP fields on a commercial invoice, 6 errors that trigger exam holds, and how customs value is calculated from your invoice. Avoid 19 USC 1592 penalties — up to 4× unpaid duties for fraud.

May 20267 min read
Country Tariff Guides

Mexico Tariffs 2026 — US Import Duty Rates, USMCA & Forced-Labor Tariff Guide

USMCA-compliant goods from Mexico enter the US at 0%. Non-compliant goods pay MFN plus the 10% forced-labor tariff (the 25% IEEPA tariff was struck down); steel, aluminum and autos pay Section 232. Full guide + calculator.

May 20267 min read
Country Tariff Guides

Canada Tariffs 2026 — US Import Duty Rates, USMCA & Forced-Labor Tariff Guide

USMCA-qualifying Canadian goods enter the US at 0%. Non-USMCA goods pay MFN plus the 10% forced-labor tariff (the 35% IEEPA tariff was struck down); metals, autos and lumber pay Section 232. Complete 2026 guide + free calculator.

May 20267 min read
Country Tariff Guides

India Tariffs 2026 — US Import Duty Rates, Reciprocal Tariff & Trade Deal Guide

Indian goods pay MFN plus the 10% forced-labor Section 301 tariff (the reciprocal tariffs were struck down). No US-India FTA; trade talks continue.

May 20267 min read
Country Tariff Guides

Brazil Tariffs 2026 — 25% Section 301, Forced-Labor Tariff & Sourcing Guide

Since July 2026 most Brazilian goods pay a 25% Section 301 tariff plus the 12.5% forced-labor tariff; coffee, beef, energy and aircraft are exempt. Key exports — aircraft (Embraer), agriculture, footwear, steel. Full guide with duty calculator.

May 20266 min read
US Trade Policy

Section 232 Steel & Aluminum Tariffs 2026 — 50% on Full Value

Section 232 charges 50% on steel, aluminum and copper articles since 6 April 2026 (derivatives 25%, UK 25%), with no country exemptions. How it replaces the forced-labor tariff and stacks with China's Section 301.

May 20266 min read
Developer API

Tariff API vs Manual Spreadsheet: The Real Cost of DIY Duty Calculation

Maintaining a manual tariff spreadsheet for 70+ countries costs 15–40 hours/month in researcher time — and still misses changes like the July 2026 forced-labor tariff, anti-dumping orders, and FTA updates. What a tariff API actually saves you.

May 20265 min read
Developer API

MCP Server for Trade Data: Let Claude Query Your Import Costs Directly

Zentria Flow's MCP server lets Claude and other AI assistants query live tariff rates, HS codes, and landed cost calculations. Set up in 5 minutes — no custom integration required.

May 20265 min read
China Tariffs

US-China Tariff Update 2026: IEEPA Out, Forced-Labor Tariff In

IEEPA tariffs were struck down on 20 Feb 2026, a 10% Section 122 surcharge ran until 24 July, and Chinese goods now pay their Section 301 list rate plus a 12.5% forced-labor tariff. What it means for your China-sourced landed cost.

May 20266 min read
Import Fees

US Maritime Vessel Fee: How It Affects Your Landed Cost in 2026

New USTR rules impose vessel fees on Chinese-built ships calling at US ports. How the fee is calculated, which shipments are affected, and how to factor it into your landed cost estimate.

June 20265 min read

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