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Guides
Practical guides to recurring trade-compliance questions. Each guide is broker-grade, primary-source-cited, and walks through a real worked example with deep links into the Tandom calculator and AD/CVD catalog.
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Resource Center
Practical guides to recurring trade-compliance questions. Each guide is broker-grade, primary-source-cited, and walks through a real worked example with deep links into the Tandom calculator and AD/CVD catalog.
11 guides
A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. MFN, Section 232, Section 301, Section 122, AD/CVD, MPF, HMF, with a real worked example.
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How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. For brokers and compliance teams.
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What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
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What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
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What changed for low-value DTC and ecommerce shipments after Section 321 de minimis was suspended in 2025. Filing, fees, and duty math through 2027.
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Implementation playbook for showing landed cost (duty + fees) at checkout after the August 2025 de minimis suspension. Decision matrix by volume, runnable Tandom API code, postal vs courier math, and a contrarian callout for when you should NOT integrate.
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Honest provider comparison across Zonos, Shopify Markets DDP, Easyship, Passport, Avalara CrossBorder, and Tandom. Pricing, integration breadth, AD/CVD coverage, DDP guarantee fine print, and decision framework by use case.
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Nine operational steps from catalog audit to customer comms. Broker selection, ACE setup, entry-type decision, recordkeeping, and a worked transition timeline for a 80,000-order/month apparel brand.
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How postal and courier shipments are duty-handled differently into the US. The Feb 28, 2026 ad valorem cutover, per-package math on a $30 phone case, and AOV-band decision framework.
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A practical guide to qualifying a product for USMCA preferential tariff treatment. Rules of origin, the 9 certification data elements, and a worked example.
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Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
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