PortRobin

Features

Everything a duty decision needs, in one place

Not a generic dashboard — the specific things a real import decision asks for: the right code, the real stacked rate, the whole landed cost, and a warning when it moves. Free to start.

AI classification

Describe the product, get the code — with the reasoning

Type a plain-English description and PortRobin classifies it to the likely HS/HTS line, grounded in the real tariff schedule. You see candidate codes ranked, not a single black-box guess, so you can confirm the right one.

  • Candidate codes ranked, best match first
  • Reasoning tied to material, use and form
  • Grounded in real HTS descriptions — never invented
“plain cotton t-shirt, knit”
6109.10.0060Cotton t-shirts (knit)
Best match
6109.90.1090T-shirts of other materials
Alt
6110.20.2079Cotton sweatshirts
Alt

Real duty rates

The real rate, stacked and sourced

Every rate comes from the dataset, sourced to the USITC HTS, CBP or USTR with a verification date — never from the model. Section 301, Section 232 and 2025 measures stack on top of the base rate, and anything we can't verify shows 'verify', not a fabricated number.

  • Base general (Column 1) rate, cited
  • Section 301 / 232 / reciprocal stacked automatically
  • Unverified lines flagged, never silently zeroed
Duty stack · from China
General (Column 1) rate
16.5%
Section 301 — China (List 4A)
+ 7.5%
Section 122 — 10% global baseline
+ 10%
Effective duty34%

Landed cost

The whole number, not just the duty

PortRobin computes the full landed cost — base duty, additional tariffs, the CBP Merchandise Processing Fee and Harbor Maintenance Fee, plus freight and insurance — so you plan against the real total, not a partial one.

  • MPF and HMF computed to the statutory formula
  • Freight, insurance and other fees rolled in
  • Effective duty rate shown as a single percentage
Landed cost · $2,000.00 shipment (ocean)
Customs value$2,000.00
Base duty16.5%$330.00
Section 301 — China (List 4A)7.5%$150.00
Section 122 — 10% global baseline10%$200.00
Merchandise Processing Fee (MPF)$2.62
Harbor Maintenance Fee (HMF)0.13%$2.50
Freight$240.00
Total landed cost(~34% duty)$2,925.12

Tariff alerts

Get warned when a rate on your code moves

Tariffs change constantly in 2025–26. Track the codes and lanes you import and PortRobin re-checks the sources behind them, alerting you the moment a Section 301 list, a 232 rate or a de-minimis rule changes.

  • Watch a code, an origin, or a whole lane
  • Alerts cite the old value, new value and source
  • No more finding out from the broker's invoice
Tariff-change alerts
Changed

Section 232 — Aluminum

Rate increased for covered derivatives

Changed

8471.30.0100 · China

List 4A coverage confirmed on your code

Changed

De-minimis · China

$800 exemption suspended for CN/HK

The API & MCP

Classify and cost from your own tools and agents

Pull classifications, sourced duty rates and landed cost into your own scripts, CI or an AI agent costing a product on your behalf — the same sourced data the site renders, as JSON, plus an MCP server agents can call directly.

  • Per-code rate, stacking measures and landed cost
  • Built for engineers and AI agents alike
  • Included on Pro and Business
GET /api/duty?code=6109.10.0060&from=CN
{
  "code": "6109.10.0060",
  "baseRate": 0.165,
  "additional": [
    { "label": "Section 301 — List 4A", "rate": 0.075 }
  ],
  "effectiveDuty": "24%",
  "source": "https://hts.usitc.gov"
}

Classify a product and see the real duty

Free to look up any HS code and real duty rate, no card to start. Classify with AI, cost the whole shipment, and get warned when a tariff moves.

Classify a product freeSee pricing