cz.freelax/tax-engine

up checked 2026-11-11T04:39:26.908Z

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Publisher-provided description

Deterministic Czech OSVC tax tools for 2026: tax, insurance, deadlines, VAT and exchange rates.

Summary by lookupd

Computes Czech OSVČ taxes, insurance, flat-tax eligibility, VAT thresholds, deadlines and CNB EUR/CZK rates for 2026.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http tax-engine https://freelax.cz/api/mcp

Codex, remote (streamable-http)

codex mcp add tax-engine --url https://freelax.cz/api/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "tax-engine": {
      "url": "https://freelax.cz/api/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (14 tools)

Publisher-provided text

compute_year Computes a full Czech OSVČ tax year from personal facts: income tax with credits (children, spouse, deductions), social and health insurance, monthly set-aside,
calc_set_aside How much of a monthly OSVČ income to set aside for Czech income tax, social and health insurance, and what remains safe to spend. Supports mixed §7 business + §
compare_regimes Compares the standard OSVČ regime against paušální daň (flat tax) for a yearly income, including tax credits that would be lost with the flat tax (children, spo
calc_flat_tax_settlement Given the paušální daň band you paid and the actual annual income, computes whether you owe a doplatek (top-up), get a vratka (refund), or must exit the flat-ta
estimate_penalty Estimates the Czech penalty/interest for a late payment or filing: repo rate + 8 p.p. for insurance and tax interest (3.5% H1 / 3.75% H2 2026), 3 grace days for
convert_eur_czk Converts an EUR amount to CZK using the Czech National Bank daily exchange rate (the rate used for Czech tax purposes). Reports the rate, its publication date a
get_filing_deadlines Deadline for the Czech personal income tax return (DPFO) for a given tax year, per filing route: paper, self-filed electronic, or via tax advisor. Weekend and h
get_prehled_deadlines Filing deadlines for the annual OSVČ Přehled o příjmech a výdajích for both social insurance (ČSSZ) and the health insurer, per tax-return filing route, plus th
czech_working_days Czech public holidays for a year (including movable Easter feasts) and, for a specific date, whether it is a working day and the next working day a statutory de
check_flat_tax_eligibility Screens whether an OSVČ may enter or stay in the paušální daň (flat tax) regime: public health insurance participation (decisive for foreigners), VAT-payer stat
get_flat_tax_band Which paušální daň band (pásmo 1/2/3) an annual income falls into given the expense flat-rate, the current monthly payment for that band, and the next income th
check_thresholds Checks an annual income against the four statutory thresholds: VAT registration 2,000,000 CZK, immediate VAT registration 2,536,500 CZK, the 23% higher tax brac
check_io_trigger Checks whether buying services from abroad (Google Ads, Meta, ChatGPT, hosting…) or selling services to EU businesses has made an OSVČ an identifikovaná osoba u
get_rule_source For a Czech OSVČ tax topic, returns the governing rule with current values, primary-source citations (zákon, ČSSZ, VZP, Finanční správa) with verification dates

Details

Version: 1.0.0
Transports: streamable-http
Uptime (7 days): 100%
Median latency: 1024 ms
First indexed: 2026-11-01T09:00:25.623Z
Last seen in registry: 2026-11-01T09:00:25.623Z
Website: https://freelax.cz/connect

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[![lookupd status](https://lookupd.com/badge/cz.freelax/tax-engine.svg)](https://lookupd.com/servers/cz.freelax/tax-engine)

62141 servers
Last crawl: 2026-11-11T18:39:04.612Z
API base: https://api.lookupd.com
MCP URL: https://api.lookupd.com/mcp