compute_income_tax
PAID ($0.05). Statutory income tax on a TAXABLE-income figure using the country's verified marginal bracket schedule, with full per-bracket workings, effective rate and marginal rate. Handles inflation-indexed tax units (Colombia UVT, Chile UTA, Peru UIT, Uruguay BPC) — you pass local currency. I...
This record as markdown: /tools/dev-euroref-reference-data/compute-income-tax.md
What compute_income_tax does on Reference Data
AI agents call compute_income_tax to retrieve information from Reference Data without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
api_key | string | — | API key (bypasses x402; metered for invoicing) |
country | string | Yes | ISO country code |
taxable_income | number | Yes | Taxable income in the country's local currency, in the schedule's own period basis (annual for most; monthly for Côte d'Ivoire, Uganda, Ethiopia, Costa Rica) |
Parameters from the server's own tool schema.
Why compute_income_tax is rated Low
Even though compute_income_tax 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.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
The rule that runs compute_income_tax safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Reference Data, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For compute_income_tax, this is the rule to start with:
compute_income_tax is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Reference Data, apply this rule, and every compute_income_tax call is checked against it from then on.
Questions about compute_income_tax
PAID ($0.05). Statutory income tax on a TAXABLE-income figure using the country's verified marginal bracket schedule, with full per-bracket workings, effective rate and marginal rate. Handles inflation-indexed tax units (Colombia UVT, Chile UTA, Peru UIT, Uruguay BPC) — you pass local currency. IMPORTANT: this is tax on taxable income, NOT net take-home pay — reliefs/allowances and social-security contributions are the caller's concern and are not applied (see the response scope_note). Pass api_key if you have one; otherwise the response explains how to pay via x402. It is categorised as a Read tool in the Reference Data MCP Server, which means it retrieves data without modifying state.
compute_income_tax accepts 3 parameters: api_key, country, taxable_income. Required: country, taxable_income. The full parameter table on this page comes from the server's own tool schema.
Register the Reference Data MCP server in PolicyLayer and add a rule for compute_income_tax: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Reference Data. Nothing to install.
compute_income_tax is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the compute_income_tax rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for compute_income_tax. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
compute_income_tax is provided by the Reference Data MCP server (https://euroref.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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