Classification, origin, valuation and bond sufficiency, handled through licensed U.S. customs brokers, so your import record stands up to CBP review.
We coordinate CBP Form 5106, CAIN, POA, and the importer file foreign companies need before filing U.S. customs entries.
We review your shipment, importer profile, and bond exposure before your goods reach the port.
Filing through licensed U.S. customs brokers, HTS classification, duty review, and shipment-document checks in one workflow.
Bring your commercial invoice, packing list, bill of lading or arrival notice, and any HTS or origin questions. We review the entry profile before CBP filing so you know the brokerage, ISF, bond, and compliance scope upfront.
Book a quote review →We check the invoice, packing list, bill of lading, consignee details, and filing timeline for missing data.
We flag classification, origin, bond, PGA, and ISF questions before the shipment reaches the port.
You see what is included, what is pass-through, and what we need before filing starts.
Drop a commercial invoice on the self-serve import desk and watch it become a classified duty schedule — HTS lines, Section 301 exposure, rules-of-origin savings — in about two minutes. It's the same desk our licensed broker partners work from, loaded with a sample shipment so you can walk the full flow.
Open the import desk →We learn your business — what you're shipping, where it's going, and where you're exposed.
Self-service portal for filings, or just email us your documents. Whichever's easier for you.
Entries filed by licensed U.S. customs broker partners. Classification, bond sufficiency and tariff exposure kept current between shipments.
SKU-level HTS audits, Section 301 China cleanup, AD/CVD screening, PSC/protest support, and broker coordination for recurring component entries.
Learn more →Material-flow HTS review, Section 232/AD/CVD monitoring, country-of-origin defense, and DFARS-ready customs documentation for AS9100 supply chains.
Learn more →FEOC/IRA evidence packets, UFLPA screening, lithium-battery escalation, HTS review, and broker routing for battery and drivetrain imports.
Learn more →Classification and first-import controls for actuators, sensors, robot compute, motors, lithium batteries, frames, chargers, and fast-changing robot BOMs.
Learn more →Customs-side classification, valuation, first-sale files, Section 301 stack review, and broker coordination for high-value AI infrastructure imports.
Learn more →We built Greenwich Mercantile because importers deserve a broker who reads every entry like it's a line item on their P&L.
The five we hear most. For anything else, a 30-minute call is usually faster than email.
Greenwich Mercantile coordinates filings through licensed customs broker partners at transparent, flat-rate pricing per import or export. The rate is the same regardless of shipment size, complexity, or number of filings. No surcharges. No hidden fees. For a full industry breakdown of per-entry pricing, section 301 fees, bond fees, and hidden costs, read our complete guide to customs filing costs.
Entries are filed by licensed U.S. customs broker partners. Because your importer number, bond and classification are settled before the shipment moves, the entry itself is usually filed as soon as your documents are complete.
Most filings get rubber-stamped. Greenwich Mercantile conducts expert-led tariff classification reviews to identify opportunities to legally reduce your duty spend.
Customs holds typically result from classification errors, missing documentation, or compliance flags. Our process is designed to prevent holds before they happen — and to resolve them the same day if they do.
Yes. We handle setup of importer numbers, continuous bonds, and POA in a single onboarding session. Most new importers file their first entry within a week.
Subscribe and we'll send the Free 2026 Tariff Stacking Checklist immediately — then one issue per month for importers who'd rather read it from us than learn it from a CBP form.