# TariffsChart > TariffsChart is a US import planning workspace with source-backed HS / HTS base-duty lookup, a partial-safe duty-stack resolver, landed-cost tools, a $29 human-prepared Quick Check, and pilot monitoring workspaces. TariffsChart helps users: - Look up HS / HTS codes and source-backed USITC general-duty fields. - Resolve the published 2026 forced-labor Section 301 origin structure, including 10% and 12.5% tiers, net-of-MFN caps, the Section 232 carve-out, preference-program review gates, and the short transit exception. - Keep unresolved Annex, Chapter 99, legacy Section 301, Section 232, AD/CVD, quota, exclusion, preference-program, and entry-date questions visible instead of treating them as zero. - Calculate landed cost with explicitly entered invoice value, freight, insurance, fees, taxes, and additional-duty assumptions. - Review current policy notices and historical tariff windows without turning a headline into a filing rate. - Buy a human-prepared planning packet for one product and one origin-to-US route. - Preserve recurring SKU assumptions, source snapshots, change-review prompts, and broker handoffs in Pro or Team pilot workspaces. Current safety boundaries: - The public resolver returns source-backed known layers and a known subtotal. The final rate and final duty remain null whenever any material applicability question remains. - Specific, compound, quota, and other complex duty fields are not flattened into guessed percentages. - The scheduled 2026 Section 122 temporary window is treated as historical, not as a default current-shipment layer. - A missing Annex record is never reported as not exempt while the official Annex dataset is incomplete. - Product-level Section 232 and AD/CVD conclusions require separate scope and Chapter 99 review. Important limitations: - TariffsChart is not an official customs database. - TariffsChart is not a customs broker, attorney, tax advisor, or government authority. - All estimates are planning-only and must be verified with official sources and qualified professionals before filing or making binding decisions. Key public pages: - Home and interactive duty resolver: https://tariffschart.com/#duty-resolver - Forced-labor Section 301 guide: https://tariffschart.com/section-301-forced-labor - Stacking rules: https://tariffschart.com/stacking - Product Annex lookup and data status: https://tariffschart.com/exemptions - Transit exception checker: https://tariffschart.com/transit-exception - USMCA carve-out guide: https://tariffschart.com/exemptions/usmca - CAFTA-DR textile/apparel carve-out guide: https://tariffschart.com/exemptions/cafta-dr - Section 232 carve-out guide: https://tariffschart.com/exemptions/section-232-carveout - Current US tariffs: https://tariffschart.com/current-us-tariffs - Tariff Book 2026: https://tariffschart.com/tariff-book-2026 - Tariff data by country: https://tariffschart.com/tariff-data - Tariff rates by country 2026: https://tariffschart.com/tariff-rates-by-country - HS / HTS lookup: https://tariffschart.com/tariffs - Landed-cost calculator: https://tariffschart.com/tariff-calculator - Pricing: https://tariffschart.com/pricing - Machine-readable pricing: https://tariffschart.com/pricing.md - $29 Import Duty Quick Check: https://tariffschart.com/import-duty-quick-check#quick-check - Pro Monitor subscription: https://tariffschart.com/pricing#pro-monitor - Pro source-monitor workspace: https://tariffschart.com/workspace/alerts - Public tariff alerts product page: https://tariffschart.com/tariff-alerts - Team pilot request: https://tariffschart.com/request-access?plan=team-pilot - API beta documentation: https://tariffschart.com/tariff-api-docs - Tariff tracker: https://tariffschart.com/tariff-tracker - Historical Section 122 guide: https://tariffschart.com/tariffs/section-122-tariffs - Section 301 tariff guide: https://tariffschart.com/tariffs/section-301-tariffs - Section 232 tariff guide: https://tariffschart.com/tariffs/section-232-tariffs - Methodology: https://tariffschart.com/methodology - Data sources: https://tariffschart.com/docs/official-source-research - Import workflow guide: https://tariffschart.com/docs/import-workflow - Data license: https://tariffschart.com/data-license Machine-readable endpoints: - Safe duty resolver (POST JSON only): https://tariffschart.com/api/tariffs/resolve - Base HTS lookup: https://tariffschart.com/api/tariffs/lookup?hs=7318.15.20 Structured data: - Public HS detail pages under https://tariffschart.com/hs/ include BreadcrumbList, Dataset, and DefinedTerm JSON-LD when a simple source-backed base field is available. - Dataset markup references the TariffsChart data license at https://tariffschart.com/data-license. Sitemaps: - Sitemap index: https://tariffschart.com/sitemap.xml - Public sitemap: https://tariffschart.com/sitemap-public.xml Contact: - support@tariffschart.com