Taxlocus

com.taxlocus由 taxlocus.com 发布官方发布者v1.0.0更新于 Nov 2, 2026

US sales tax for AI agents: rates, economic nexus, taxability, filing. Citation-backed.

已验证Streamable HTTP可网页运行金融数据与分析商业与电商

概览

AI 生成的概览

TaxLocus 远程服务器,让助手查询带引用来源的美国销售税税率、经济关联门槛、应税判定和薪资税参考数据。

可以做什么
  • 按州和按具名地方辖区(县、市、交通区、特别区)查询美国销售税税率
  • 查看各州针对远程卖家的经济关联门槛及计量规则
  • 查阅州与商品类别交叉的应税/免税判定表
  • 获取薪资税参考表:联邦 FICA/FUTA、州个人所得税代扣、SUTA 工资基数、地方所得税及州际互惠
  • 返回带引用来源的数值,可对照权威来源核验
适用场景
适合助手需要回答美国销售税或薪资税参考问题:具名辖区的税率、关联门槛、某类商品是否应税、代扣参考数值,且答案应可追溯到引用来源。若需要某个具体街道地址的精确税率,则不适合。
运行要求
远程 streamable HTTP 端点 api.taxlocus.com,需要 OAuth 认证。未声明环境变量或请求头。地址级查询、辖区几何边界和关联追踪属于另外的付费产品。
安装前请注意
数据仅供信息参考,明确不构成税务建议;税率和规则变动频繁,快照可能存在错误或遗漏,申报或缴纳前应向相关州税务局核实。薪资税覆盖范围存在已记录的缺口,且不含雇主自身的 SUTA 税率;代扣计算及责任由使用者自行承担。地址级解析与关联追踪为付费功能。

安装

在 SourceWeft 中

  1. 打开 控制台中的 Taxlocus,将其添加到工作区。
  2. 连接 所需的 凭据。它们会被私密存储,绝不会在公开页面上展示。
  3. 为需要使用其工具的对话启用该服务。

Web executable,通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。

交给智能体安装

把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体,或 SourceWeft 对话中。智能体会读取该服务器的安装指南,先向你展示发布者、端点和登录方式,经你同意后再把它添加到你的客户端。密钥不会写进任何命令。

阅读 https://sourceweft.com/mcp/com.taxlocus%2Ftaxlocus/install.md,并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前,先告诉我它的发布者、端点和登录方式,等我确认。不要把 API 密钥写进命令或我会提交的文件;问我密钥应从哪里获取。

查看智能体所依据的安装指南

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。 客户端会在首次连接时完成 OAuth 登录。

{
  "mcpServers": {
    "taxlocus": {
      "type": "http",
      "url": "https://api.taxlocus.com/mcp"
    }
  }
}

README

TaxLocus Open Sales-Tax Dataset

Free, weekly-updated US sales-tax rate tables — the flat data behind TaxLocus, released as an open dataset for the community.

Data as of: 2026-05-19 · Refreshed weekly from the live TaxLocus corpus.

What this is

A clean, flat snapshot of US sales-tax rates and rules:

  • State base rates for all sales-tax states.
  • Local jurisdiction rates — ~14,000 counties, cities, parishes, boroughs, transit and special districts.
  • Economic-nexus thresholds — the per-state remote-seller registration triggers.
  • Taxability matrix — state × product-category taxable/exempt treatment.

Both CSV and JSON are provided for every table.

What this is not

This is the rate data only. The address-level lookup API, the polygon geometry that resolves an address to its jurisdiction stack, and the nexus tracking tools are the paid product at taxlocus.com. This dataset will tell you the rate for a named jurisdiction; it will not tell you which jurisdictions a given street address falls in.

Files & schema

All files live in data/.

state_rates — statewide base rates

columndescription
state2-letter state code
ratestatewide base sales-tax rate (decimal, e.g. 0.0625)

jurisdiction_rates — local jurisdiction rates

columndescription
state2-letter state code
jurisdiction_typecounty, city, parish, borough, transit, or special_district
namejurisdiction name
fips_codeCensus FIPS code, where available (may be blank)
ratelocal rate for the jurisdiction (decimal)

nexus_thresholds — economic-nexus thresholds

columndescription
state2-letter state code
sales_thresholdUSD sales threshold (may be blank)
transaction_thresholdtransaction-count threshold (may be blank)
logicsales_only, transactions_only, sales_or_count, or sales_and_count
measurement_periodprior_calendar_year, current_or_prior_cy, rolling_12_month, or prior_4_quarters

taxability — state × category taxability matrix

columndescription
state2-letter state code
categoryproduct-category code (e.g. food.grocery, clothing.general)
taxableTrue/False
treatmenttaxable, exempt, reduced_rate, exempt_with_cert, or partial

manifest.json

Generation date and per-file row counts for the current snapshot.

Payroll-tax open data (new — Plan 14)

Reference tables for US payroll tax — federal FICA/FUTA, state personal income tax (PIT) and SUTA wage bases, and local income tax where it exists (PA, OH, MD, IN, NYC, etc.). Same shape + CC-BY-4.0 licence; every row carries a citation_url to the authoritative source (IRS, state DOR, state UI agency) so any value can be verified or refreshed against the source. This is rate / reference data only — not a withholding-tax calculation engine, not the per-employer SUTA experience rate (which is state-assigned and not lookupable). Consumers compute their own withholding and take liability for it.

payroll_federal_rates

FICA (SS + Medicare + Additional Medicare 0.9% > $200k) and FUTA rates, wage bases, and credit max by year.

payroll_state_pit — state personal income tax (wage withholding)

columndescription
yeartax year
state2-letter state code
tax_typenone (no wage income tax) / flat / progressive
flat_rateflat rate (when tax_type='flat')
top_marginaltop marginal rate (when tax_type='progressive')
bracket_summaryoptional compact JSON of brackets
supplemental_ratesupplemental (bonus) withholding rate where published
citation_urlstate DOR / withholding guide
notesper-state nuance

payroll_state_suta — state unemployment-insurance wage base + rate range

columndescription
yeartax year
state2-letter state code
wage_baseannual SUTA wage base per employee
new_employer_ratenew-employer assigned rate (when published)
min_rate / max_ratebounds of the experience-rate range
citation_urlstate UI agency

Per-employer SUTA rates are NOT included — each employer's rate is experience-rated and assigned by the state UI agency annually.

payroll_local_income_tax — city / county / municipal income tax

columndescription
yeartax year
state2-letter state code
jurisdiction_typecity / county / municipality / school_district / township / borough
jurisdiction_namee.g. Philadelphia, Anne Arundel County, New York City
geoidFIPS / place GEOID when known
resident_rate / non_resident_ratewithholding rates
courtesy_withholdingwhether the state publishes a courtesy-withholding flag
citation_urlstate DOR / local agency

Local income tax coverage (3,662 rows, 8 states): PA (2,627 PSDs) · OH (890 munis: RITA + CCA + DOR self-administered) · IN (92 counties) · MD (24 counties) · MI (24 cities) · NY (NYC + Yonkers) · MO (KC + STL) · DE (Wilmington). The remaining ~8 states with some local income tax are not yet covered (KY, IA, OR, AL, CO, WV, KS, NJ-Newark); the other ~34 states have no local income tax at all. Read PAYROLL-COVERAGE.md before relying on this data for withholding — it documents every gap and the disclaimer in detail.

payroll_reciprocity — state income-tax reciprocity agreements

columndescription
state_a / state_bthe two states
directionmutual or a_to_b (one-way)
citation_urlstate DOR

Reciprocity exempts the non-resident state from withholding when an employee files the exemption form (e.g., PA REV-419, MD MW507).

License & attribution

This dataset is licensed under the Creative Commons Attribution 4.0 International (CC-BY-4.0) license — see LICENSE.

You are free to use, share, and adapt the data, including commercially, provided you give credit. Required attribution:

Sales-tax data by TaxLocus — https://taxlocus.com

Disclaimer

This dataset is provided for informational purposes only and is not tax advice. Sales-tax rates and rules change frequently, special districts and local boundaries are complex, and this snapshot may contain errors or omissions. Always verify against the relevant state Department of Revenue before relying on it for filing or remittance. TaxLocus makes no warranty as to accuracy, completeness, or fitness for any purpose.

Need address-level accuracy?

The free dataset gives you rates by named jurisdiction. To resolve a real street address to its exact jurisdiction stack — with geometry, product taxability, and economic-nexus tracking — use the TaxLocus API at taxlocus.com.

来源:README.md,提交 ab79cc7

工具

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版本历史

1
  1. v1.0.0最新Sep 16, 2026

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