# usitc.gov API: Find US import duty rates > Finds matching lines of the US Harmonized Tariff Schedule for a product description or HTS code and returns their general, special-program and column 2 duty rates, units and notes on additional duties. Unofficial. Not affiliated with or endorsed by usitc.gov. - Page: https://fous.com/methods/hts.usitc.gov/get-import-duty - Method: `hts.usitc.gov/get_import_duty`, version 1 - Website: hts.usitc.gov - Returns: HTS edition; per tariff line: HTS code, full description, unit of quantity, general duty rate and percent, special rates, column 2 rate, additional duty notes, link - Effect: read (it gets data and changes nothing) - Sign-in: none needed - Cost: 1 credit per completed run (1¢ with pay as you go); failed runs are free - Verified: Nov 2, 2026 ## Inputs | Field | Type | Required | In the run below | Description | |---|---|---|---|---| | `product` | string | yes | `"8507.60.00"` | What is being imported, or an HTS code; for example, roasted coffee beans or 0901.21.00. | | `max_results` | integer | no | `5` | Maximum number of matching tariff lines, for example 10. Default 10. | ## Output From a run on Oct 31, 2026, shortened. Its input: ```json { "product": "8507.60.00", "max_results": 5 } ``` Its output: ```json { "hts_edition": "2026 HTS Revision 20", "tariff_lines": [ { "hts_code": "8507.60.00", "page_link": "https://hts.usitc.gov/search?query=8507.60.00", "description": "Electric storage batteries, including separators therefor, whether or not rectangular (including square); parts thereof: > Lithium-ion batteries", "column_2_rate": "40%", "special_rates": "Free under Generalized System of Preferences; Free under Australia trade agreement; Free under Automotive Products Trade Act; Free under Bahrain trade agreement; Free under Agreement on Trade in Civil Aircraft; Free under Chile trade agreement; Free under Colombia trade agreement; Free under African…", "unit_of_quantity": null, "general_duty_rate": "3.4%", "general_duty_percent": 3.4, "additional_duty_notes": null }, { "hts_code": "8507.60.00.10", "page_link": "https://hts.usitc.gov/search?query=8507.60.00.10", "description": "Electric storage batteries, including separators therefor, whether or not rectangular (including square); parts thereof: > Lithium-ion batteries > Of a kind used as the primary source of electrical power for electrically powered vehicles of subheadings 8703.40, 8703.50, 8703.60, 8703.70 or 8703.80", "column_2_rate": "40%", "special_rates": "Free under Generalized System of Preferences; Free under Australia trade agreement; Free under Automotive Products Trade Act; Free under Bahrain trade agreement; Free under Agreement on Trade in Civil Aircraft; Free under Chile trade agreement; Free under Colombia trade agreement; Free under African…", "unit_of_quantity": "No., kg", "general_duty_rate": "3.4%", "general_duty_percent": 3.4, "additional_duty_notes": null }, { "hts_code": "8507.60.00.30", "page_link": "https://hts.usitc.gov/search?query=8507.60.00.30", "description": "Electric storage batteries, including separators therefor, whether or not rectangular (including square); parts thereof: > Lithium-ion batteries > Other: > Battery energy storage systems fully encased within a housing, as described in statistical note 2 to this chapter", "column_2_rate": "40%", "special_rates": "Free under Generalized System of Preferences; Free under Australia trade agreement; Free under Automotive Products Trade Act; Free under Bahrain trade agreement; Free under Agreement on Trade in Civil Aircraft; Free under Chile trade agreement; Free under Colombia trade agreement; Free under African…", "unit_of_quantity": "No., kg", "general_duty_rate": "3.4%", "general_duty_percent": 3.4, "additional_duty_notes": null } ] } ``` ## Run it From code, with a Fous API key in `FOUS_API_KEY`; the answer's `data` holds the output: ```bash curl https://api.fous.com/v1/runs \ -H "Authorization: Bearer $FOUS_API_KEY" \ -H "Content-Type: application/json" \ -d '{"method":"hts.usitc.gov/get_import_duty","input":{"product":"8507.60.00","max_results":5}}' ``` From an AI agent connected to the Fous MCP server: its `run` with the same method and input. To connect one, give it `set up https://fous.com/SKILL.md`. ## Ask your agent - What's the general duty rate for importing stainless steel kitchen sinks into the United States? - Look up HTS 8471.30.01 on usitc.gov and tell me the general, special and column 2 rates. - I'm bringing in wooden dining chairs from Vietnam — which tariff lines apply and what are the duties? Show up to 5 results. - Check the USITC tariff schedule for lithium-ion battery codes, return up to 20 matching lines with units of quantity and any notes on extra duties. - Need the US Harmonized Tariff Schedule classification and import tariff for women's cotton knit sweaters, including special program rates. ## Input schema ```json { "type": "object", "required": [ "product" ], "properties": { "product": { "type": "string", "description": "What is being imported, or an HTS code; for example, roasted coffee beans or 0901.21.00." }, "max_results": { "type": "integer", "default": 10, "maximum": 50, "minimum": 1, "description": "Maximum number of matching tariff lines, for example 10." } } } ``` ## Output schema ```json { "type": "object", "required": [ "hts_edition", "tariff_lines" ], "properties": { "hts_edition": { "type": [ "string", "null" ], "description": "Edition of the U.S. tariff schedule used." }, "tariff_lines": { "type": "array", "items": { "type": "object", "required": [ "hts_code", "description", "unit_of_quantity", "general_duty_rate", "general_duty_percent", "special_rates", "column_2_rate", "additional_duty_notes", "page_link" ], "properties": { "hts_code": { "type": "string" }, "page_link": { "type": "string" }, "description": { "type": "string" }, "column_2_rate": { "type": [ "string", "null" ] }, "special_rates": { "type": [ "string", "null" ] }, "unit_of_quantity": { "type": [ "string", "null" ] }, "general_duty_rate": { "type": [ "string", "null" ] }, "general_duty_percent": { "type": [ "number", "null" ] }, "additional_duty_notes": { "type": [ "string", "null" ] } }, "additionalProperties": false } } }, "additionalProperties": false } ``` ## See more - [USPTO API: Search US trademarks](https://fous.com/methods/uspto.gov/search-trademarks.md): Finds US trademark filings matching a brand name, optionally limited to likely goods or service classes. 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