# getSalesTaxFiling

PREMIUM ONLY - Business tier and above; requests below that return an error. Filing frequencies and due dates by US state. Calendars are GENERATED from each state's published rules, so all state due dates stay correct across years. Handles what a naive 'due on the 20th' model gets wrong: due days ranging from the 15th (Maine) to the last day of the month (California); New York's quarters ending Feb/May/Aug/Nov; weekend and holiday rollover against federal, state or both calendars, flagged with due_date_adjusted and preserving statutory_due_date; electronic payments that must be INITIATED a business day early (Florida); and prepayment regimes in the four distinct placements states actually use. Supply annual_liability to have the state's own ladder assign a frequency. Where a state grants frequency by written approval or departmental notice rather than by a published dollar threshold, the response is 'indeterminate' rather than a guess. Each jurisdiction carries coverage_level, and any field the state does not publish is listed in unpublished with an unpublished_reason. State-level filing regimes only; home-rule localities that file separately are out of scope. This is reference data, not tax advice.

Agent View of the PolicyLayer registry record for `getSalesTaxFiling`. HTML page: https://policylayer.com/tools/com-api-ninjas-mcp/getsalestaxfiling

## Facts

- Tool: `getSalesTaxFiling`
- Server: API Ninjas (`https://mcp.api-ninjas.com/mcp`) — https://policylayer.com/tools/com-api-ninjas-mcp.md
- Homepage: https://github.com/https://mcp.api-ninjas.com/mcp
- Risk category: Read (Low risk)
- Registry record: grade D, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 4
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `year` | integer | no | Four-digit calendar year for the generated calendar. Defaults to the current year. |
| `state` | string | no | Two-letter US state code or full state name (e.g. TX or Texas). Omit for all jurisdictions. |
| `frequency` | string | no | Filing frequency tier, e.g. monthly, quarterly, semiannual, annual, monthly_accelerated. Returns the generated calendar for that tier. |
| `annual_liability` | number | no | Annual sales tax liability in US dollars. Returns the frequency the state would assign, or 'indeterminate' where the state publishes no computable threshold. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "getSalesTaxFiling",
    "arguments": {}
  }
}
```

## Why getSalesTaxFiling is rated Low

Even though getSalesTaxFiling only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

## Use case

AI agents call getSalesTaxFiling to retrieve information from API Ninjas without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches API Ninjas:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "getSalesTaxFiling": {}
  }
}
```

## Other tools on API Ninjas (243)

- `parseUserAgent` — Execute — https://policylayer.com/tools/com-api-ninjas-mcp/parseuseragent.md
- `airportDistance` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/airportdistance.md
- `airportSuggest` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/airportsuggest.md
- `analyzeSentiment` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/analyzesentiment.md
- `binLookup` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/binlookup.md
- `calculateCaloriesBurned` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/calculatecaloriesburned.md
- `calculateIncomeTax` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/calculateincometax.md
- `calculateMortgage` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/calculatemortgage.md
- `calculateSalesTax` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/calculatesalestax.md
- `checkDisposableEmail` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/checkdisposableemail.md
- `classifyNaics` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/classifynaics.md
- `closestAirport` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/closestairport.md
- `computeTextSimilarity` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/computetextsimilarity.md
- `detectFaces` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/detectfaces.md
- `detectLanguage` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/detectlanguage.md
- `detectObjects` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/detectobjects.md
- `encodeText` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/encodetext.md
- `extractTextFromImage` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/extracttextfromimage.md
- `filterProfanity` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/filterprofanity.md
- `findSwiftCodes` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/findswiftcodes.md
- `Get_a_list_of_planets` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/get-a-list-of-planets.md
- `Get_a_list_of_stars` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/get-a-list-of-stars.md
- `Get_ZIP_Code_details` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/get-zip-code-details.md
- `getAdvice` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/getadvice.md
- `getAircraft` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/getaircraft.md
- `getAirlines` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/getairlines.md
- `getAirports` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/getairports.md
- `getAirportsList` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/getairportslist.md
- `getAirQuality` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/getairquality.md
- `getAllCatNames` — Read — https://policylayer.com/tools/com-api-ninjas-mcp/getallcatnames.md
- …and 213 more: https://policylayer.com/tools/com-api-ninjas-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-api-ninjas-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-api-ninjas-mcp