Finance Toolkit
500+ transparent financial methods calculated from raw statements, not third-party endpoints.
Description from the maker (original English)
US sales tax for AI agents: rates, economic nexus, taxability, filing. Citation-backed.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
You need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
https://api.taxlocus.com/mcpRun this in your terminal
claude mcp add --transport http taxlocus https://api.taxlocus.com/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"taxlocus": {
"url": "https://api.taxlocus.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"taxlocus": {
"type": "http",
"url": "https://api.taxlocus.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://api.taxlocus.com/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
We have not read this server’s tool list yet; we check endpoints in rotation.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
The registry name was verified against the domain taxlocus.com (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 5 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
500+ transparent financial methods calculated from raw statements, not third-party endpoints.
Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.
Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
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.
A clean, flat snapshot of US sales-tax rates and rules:
Both CSV and JSON are provided for every table.
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](https://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.
All files live in data/.
state_rates — statewide base rates| column | description |
|---|---|
state | 2-letter state code |
rate | statewide base sales-tax rate (decimal, e.g. 0.0625) |
jurisdiction_rates — local jurisdiction rates| column | description |
|---|---|
state | 2-letter state code |
jurisdiction_type | county, city, parish, borough, transit, or special_district |
name | jurisdiction name |
fips_code | Census FIPS code, where available (may be blank) |
rate | local rate for the jurisdiction (decimal) |
nexus_thresholds — economic-nexus thresholds| column | description |
|---|---|
state | 2-letter state code |
sales_threshold | USD sales threshold (may be blank) |
transaction_threshold | transaction-count threshold (may be blank) |
logic | sales_only, transactions_only, sales_or_count, or sales_and_count |
measurement_period | prior_calendar_year, current_or_prior_cy, rolling_12_month, or prior_4_quarters |
taxability — state × category taxability matrix| column | description |
|---|---|
state | 2-letter state code |
category | product-category code (e.g. food.grocery, clothing.general) |
taxable | True/False |
treatment | taxable, exempt, reduced_rate, exempt_with_cert, or partial |
manifest.jsonGeneration date and per-file row counts for the current snapshot.
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_ratesFICA (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)| column | description |
|---|---|
year | tax year |
state | 2-letter state code |
tax_type | none (no wage income tax) / flat / progressive |
flat_rate | flat rate (when tax_type='flat') |
top_marginal | top marginal rate (when tax_type='progressive') |
bracket_summary | optional compact JSON of brackets |
supplemental_rate | supplemental (bonus) withholding rate where published |
citation_url | state DOR / withholding guide |
notes | per-state nuance |
payroll_state_suta — state unemployment-insurance wage base + rate range| column | description |
|---|---|
year | tax year |
state | 2-letter state code |
wage_base | annual SUTA wage base per employee |
new_employer_rate | new-employer assigned rate (when published) |
min_rate / max_rate | bounds of the experience-rate range |
citation_url | state 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| column | description |
|---|---|
year | tax year |
state | 2-letter state code |
jurisdiction_type | city / county / municipality / school_district / township / borough |
jurisdiction_name | e.g. Philadelphia, Anne Arundel County, New York City |
geoid | FIPS / place GEOID when known |
resident_rate / non_resident_rate | withholding rates |
courtesy_withholding | whether the state publishes a courtesy-withholding flag |
citation_url | state 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`](./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| column | description |
|---|---|
state_a / state_b | the two states |
direction | mutual or a_to_b (one-way) |
citation_url | state DOR |
Reciprocity exempts the non-resident state from withholding when an employee files the exemption form (e.g., PA REV-419, MD MW507).
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
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.
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](https://taxlocus.com).