Enterprise Operations • G(P)⁴ Supply Chain Framework
G(P)⁴-LCIE: AI Landed Cost Calculator & Tariff Classification for Importers —
US, UK, EU, AU
LCIE stands for Landed Cost Intelligence Engine.
Green G(P)4™ helps importers in the US, UK, EU and Australia see what their supply chain really costs. It combines the four-pillar Plan, Procure, Produce, Provide framework, a free true landed-cost calculator, the G(P)⁴-LCIE AI agent for purchase orders, and fixed-price audits for landed-cost leaks, carbon border (CBAM) exposure and fleet decarbonization.
The PO Said $23,690 of Duty. The Entry Charged $43,087.
This is a real shipment, with names removed. On 1 July 2025 a US distributor of replacement water filters placed a purchase order with a factory in Qingdao, China: 23,798 refrigerator filter cartridges in 47 models, $78,339 FOB Qingdao. The goods went by sea to Canada and crossed into the US by rail. Every figure here comes from the purchase order, the supplier's invoices and the filed US entry summaries (CBP Form 7501).
The duty on the day the PO was signed. On 1 July 2025 these filters (HTS 8421.21.0000, base duty free) carried the 20% China additional duty and the 10% reciprocal duty. They were excluded from the 25% Section 301 duty under heading 9903.88.69, and that exclusion was extended twice, so it still applied on the entry date. A small line of graphite parts ($754) carried 55%. Expected duty: $23,690.50.
The duty at entry. The goods were entered on 27 September 2025. The first entry summary left the exclusion off and charged the 25% Section 301 duty on the filters as well: $43,087.00. That is $19,396.50 more than the purchase order said, 82% over the estimate, from one Chapter 99 line.
How it was caught. Someone compared the entry with the expected duty, and a corrected entry summary was filed about ten days later. The duty came back to $23,690.50, exactly the PO-date figure. Without that comparison, the $19,396.50 would have stayed with customs unless a correction or protest was filed in time. On a 30% margin, that is the profit on about $65,000 of sales.
This is the discipline behind G(P)4-LCIE: fix the expected duty for every line on the day the PO is signed, using the duty stack in force that day, then compare every entry against it. The G(P)4-LCIE agent prices each line from the official tariff with its exclusions and Chapter 99 layers, so an entry that charges more stands out at once.
"Nobody checks an entry against a number they never wrote down."
The lesson, put to work: record the expected duty per line when the PO is signed, with the duty stack and exclusions in force that day. Compare every entry summary with it before liquidation. Any difference is either a tariff change or a filing error, and both need an answer.
PO estimate vs entry paid
CBP 7501Rates in force on 1 July 2025 (PO date) and 27 September 2025 (entry date). MPF $271.37 is the same in both and is not shown. Importer and supplier names removed; all amounts are from the filed documents.
Free calculator — live
LCIE Multi-Line Landed Cost Engine
LCIE — the Landed Cost Intelligence Engine — stacks every layer of a multi-line import before the PO signs: base MFN duty, additive Section 301 tariffs, international freight, and the statutory fee pair (MPF with its $34.58 floor and $670.86 cap from 1 October 2026; HMF on ocean lanes). Change any input and the true cost per unit updates at once.
Loading today’s live rates…
LCIE ENGINE — TRUE LANDED COST
LCIE · 5 Modules Engine LiveOptional — worked examples from the book. Or skip them and type your own numbers below.
Border — sets rules & currency
USA — duty on customs value (your FOB). Section 301 list duty (China) and the Section 301 country duty by origin (from 24 Jul 2026: 12.5% China and Vietnam, 10% e.g. India and Mexico) stack on base duty. MPF & HMF per CBP rules. No tax collected at the border. All amounts in US$.
Charges that apply to this order
Which charges apply depends on the product’s tariff code, its origin and your shipment. The origin sets the US Section 301 sliders below; adjust any slider to your goods. The LCIE agent looks them up for each line automatically.
Incoterm — who pays for what
FOB — Free On Board. Supplier delivers export-cleared to the Chinese port. You pay freight, insurance and destination charges. The book’s recommended term.
The order — type any value
Duty & tax — edit to your goods
Freight mode
Fees at destination
CURRENCY — USA: everything in US$. UK, EU & AU: supplier-side amounts (unit price, EXW origin charges) are entered in US$ and converted at your FX rate; freight, local fees and sell price in £/€/A$. INCOTERMS — under CNF/CIF/DDP the freight (and insurance) ride inside the supplier price; the US customs value backs them out before duty. MPF & HMF computed automatically for the USA per CBP rules. LCL bills by the W/M rule — greater of CBM or tonnes. FCL counts volume (≈58 CBM/40ft) AND payload (≈26 t/box) — whichever fills first. Air charges the greater of actual kg or volume (1 CBM = 167 kg).
— TRUE LANDED COST / UNIT
Locked — the full Blindspot report
Your true landed cost stays live above. Enter your work email to unlock the complete “Margin you think vs margin you get” breakdown — margin bars, the where-the-money-goes stack and the full landed-cost ledger — right here on the page.
Unlock the free report; just put in your official email address.
Skip the sliders: upload your PO and the LCIE AI agent classifies every line from the official tariff and builds the full landed-cost report.
Try the LCIE agent: first PO free
Upgrade — Powered by the G(P)4™ AI Agent
AI Landed-Cost Agent — from estimate to execution
The paid, fully-automated version of this engine: drop in your PO and the agent assigns HS/HTS tariff codes line by line for the US, UK, EU and Australia, applies the current duty & tax stack with key rates re-checked daily, and assembles a complete, PO-ready cost sheet — every line landed and marked Confirmed or Revisit required, with your own values where needed.
Why LCIE stands out
How LCIE gets the code right, and shows its work
Most HS code finders match keywords to a code, and most duty calculators apply one rate to a code you already have. LCIE classifies the way a customs broker does, from the legal texts, checks every decision three ways, keeps a written legal basis you can re-check, and then builds the full landed cost.
01 · OFFICIAL SOURCES ONLY
Every code is chosen from the destination's official tariff list (USITC, HMRC, EU TARIC, Australian Border Force) with its legal notes, and every rate is read live with its source and date.
02 · THREE AI LAYERS
A national-tariff reading, an independent blind check that never sees the first answer, and a senior review on the WCO Explanatory Notes whenever the two differ.
03 · AN AUDIT TRAIL YOU CAN RE-CHECK
Facts used, heading text, every note checked, headings rejected and why. Each quote is verified word for word against the official text; a line that cannot be traced is not final.
04 · THE LAW, NOT HABIT
Decisions rest on the General Rules of Interpretation, the legal notes and the Explanatory Notes, never on copied rulings or on what other importers happen to declare.
05 · NEVER A SILENT GUESS
If a decisive fact is missing, LCIE asks. If the law leaves more than one code, a panel compares every code with its official source, duty and the advised code, and you decide.
06 · THE WHOLE LANDED COST
Duty, US Section 301 and 232, anti-dumping, VAT or GST, excise flags, free-trade preferences and border fees, in one audit-ready report.
Built for e-commerce sellers, general importers, manufacturers, logistics providers and customs agents who need a code they can defend and a cost they can plan on.
From the book · The Procurement Blindspot
Importers lose 15–25% of margin before the container ships.
The Tuesday that cost $24,302. Summit Trading’s spreadsheet said a shipment of phone cases and cables would cost $69,564. It actually cost $93,866: they hadn’t known which Section 301 list applied, that the 2026 Section 301 country duty adds 12.5% on Chinese goods, that both stack on top of base duty, or that MPF and HMF add another layer. (Illustrative composite case.)
“The decision window closed when they signed the purchase order.”
$69,564
Spreadsheet
$93,866
Actual cost
$24,302
Surprise
01 · DUTY LEAKAGE
Wrong codes, missed exclusions, and additional tariffs that stack on base duty instead of replacing it.
02 · FREIGHT LEAKAGE
Air by default, half-empty containers and the wrong Incoterm, repeated on every shipment.
03 · TIMING LEAKAGE
Late orders that force air freight, and stockouts that never show as a line item.
Run every purchase order through the G(P)⁴-LCIE agent
Upload a PO and the agent classifies each line from the official tariff of the US, UK, EU or Australia, stacks every duty, tax and fee, and gives you the true landed cost with sources. Your first purchase order is free; no card needed.
Monthly
$49 / month
- 10 purchase orders a month
- US, UK, EU and Australia
- PDF and CSV landed-cost reports
- Cancel any time
3 months
$499 / 3 months
- Unlimited purchase orders
- US, UK, EU and Australia
- PDF and CSV landed-cost reports
- One payment, no renewal surprises
Not ready to pay? Try your first PO free. Plans check out securely through Lemon Squeezy.
Need an expert review instead? See our fixed-price assessments →
Executive ROI
The Consolidated Green Margin View
Two divisions, one thesis: the fastest margin on the market is the money already lost to wasted fuel and to fees nobody priced in. Hydrogen optimization attacks fuel burn at the combustion layer; the G(P)4™ framework attacks duty and fee stacking at the entry layer. Both convert directly to EBITDA, and both can be simulated on this site before a single dollar is committed.
Improved
Fuel efficiency
Supplemental hydrogen injection on existing ICE fleets, confirmed through a measured pilot.
$24,302
Single-entry leak exposed
The Summit Trading Section 301 stack — caught, priced, and prevented by LCIE.
0.3464%
MPF modeled floor-to-cap
$34.58 floor and $670.86 cap from 1 October 2026 (FY2027), plus 0.125% HMF on ocean lanes.
4 Pillars
Full lifecycle control
Plan, Procure, Produce, Provide — with G redefined as Green / Low-Carbon Sustainability.
Tariffs changed in 2026. Here is what applies now.
Section 301 country duties, IEEPA refunds, FTA and GSP savings, and landed cost for Amazon, Shopify and ERP buyers, explained by a customs broker with 20+ years in HS classification, with official sources.
Section 301 country duty 2026: rates by country and exemptions
Since 24 July 2026 the US charges a Section 301 country duty of 10% or 12.5% on goods from 60 economies (Vietnam and China 12.5%). Full rate table,…
IEEPA tariff refunds: who is owed money and how to check
The US Supreme Court ended the IEEPA tariffs on 20 February 2026. What that means for importers who paid them, how refunds work, and what replaced…
Amazon FBA landed cost: import duty from China and Vietnam in 2026
How to calculate the true landed cost per unit for Amazon FBA products imported from China or Vietnam in 2026: duty, Section 301 country duty, MPF,…
Shopify import duty and HS codes: landed cost per product
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MFN vs FTA duty rate, explained with examples
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US free trade agreements and duty exemptions (2026)
Which US free trade agreements cut import duty, how to claim them, and other US duty exemptions: Chapter 98, duty drawback, Foreign-Trade Zones and…
UK import duty and VAT: commodity codes, zero-rated goods and excise
How UK import duty and VAT work in 2026: the 10-digit commodity code, duty on CIF value, VAT on value plus duty, zero-rated food, excise duties and…
EU import duty and VAT by country: reduced rates, excise and GSP savings
EU import duty is one Common Customs Tariff; VAT and excise are set by each member state. Reduced VAT on food (e.g. Germany 7%), excise such as the…
Australia import duty and GST: GST-free goods, TCOs and excise
How Australian import duty and 10% GST work, which goods are GST-free, Tariff Concession Orders (TCOs), excise-equivalent duty, and FTA rates with…
Quick answers
All 44 answers now live on the FAQs page
The full Quick answers — 44 fact-precise answers covering the $34.58 MPF floor, the end of the EU €150 duty relief, the €3 per-item duty and €2 handling fee, UK SECR tiers and Australia’s 10% GST — lives on its own dedicated FAQs page, mirrored into FAQPage structured data for answer engines.
Read all 44 FAQs