cz.freelax/tax-engine

Est-ce que cz.freelax/tax-engine est sûr ?

Au dernier audit MCP Hub, le serveur MCP « cz.freelax/tax-engine » est classé « Non encore testé ». Référencé dans l'annuaire. Seul le pentest comportemental fait foi, et il n'a pas encore été exécuté sur ce serveur. Le verdict est réévalué en continu ; consultez la fiche pour l'état à jour.

Méthode : MCP Hub analyse la description de chaque outil (couche 1) et, pour le verdict fort, exécute le serveur dans une micro-VM isolée avec leurres et réseau bloqué (couche 2). On publie des noms et des compteurs, jamais le contenu brut renvoyé par un outil.

Les 14 outils

• calc_flat_tax_settlement≈ 306 tokens

  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-tax regime (income above 2,000,000 CZK).

  Paramètres, retour & exemple (5)

  Paramètres

  • currentBand · string · requis · band1 | band2 | band3
    Band actually paid during the year
  • isProjection · boolean · optionnel
    True for a mid-year projection instead of a final settlement
  • monthsInRegime · integer · optionnel
  • flatRatePercent · ? · optionnel
    Flat-rate expense percentage as a decimal: 0.4 (other business), 0.6 (most freelancers / živnost volná), 0.8 (craft trades)
  • actualAnnualIncome · number · requis

  Exemple d'appel

  {"name": "calc_flat_tax_settlement", "arguments": {"currentBand": "band1", "actualAnnualIncome": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• calc_set_aside≈ 414 tokens

  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 + §9 rental income and the paušální daň (flat tax) regimes.

  Paramètres, retour & exemple (9)

  Paramètres

  • taxRegime · string · optionnel · standard | pausal_band_1 | pausal_band_2 | pausal_band_3
  • activityType · string · optionnel · main | secondary
  • advanceExempt · boolean · optionnel
  • monthlyIncome · number · requis
    Gross monthly business income in CZK (§ 7 ZDP)
  • flatRatePercent · ? · optionnel
    Flat-rate expense percentage as a decimal: 0.4 (other business), 0.6 (most freelancers / živnost volná), 0.8 (craft trades)
  • reducedMinimumBase · boolean · optionnel
    New OSVČ in the first 2 years (lower social minimum)
  • rentalMonthlyIncome · number · optionnel
    Monthly rental income in CZK (§ 9 ZDP); triggers the mixed-income calculation
  • employerCoversHealth · boolean · optionnel
  • secondaryThresholdExceeded · boolean · optionnel

  Exemple d'appel

  {"name": "calc_set_aside", "arguments": {"monthlyIncome": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• check_flat_tax_eligibility≈ 338 tokens

  Screens whether an OSVČ may enter or stay in the paušální daň (flat tax) regime: public health insurance participation (decisive for foreigners), VAT-payer status, income ceiling 2,000,000 CZK, side income and secondary activity. Returns reasons with severity.

  Paramètres, retour & exemple (6)

  Paramètres

  • activityType · string · optionnel · main | secondary
  • annualIncome · number · requis
    Expected annual business income in CZK
  • citizenshipType · string · optionnel · eu | non_eu_public | non_eu_private
    eu = EU/EEA citizen; non_eu_public = non-EU participating in Czech public health insurance (e.g. dočasná ochrana, employment); non_eu_private = non-EU with private/commercial insurance only
  • isVATRegistered · boolean · optionnel
    Full VAT payer (plátce DPH). Identifikovaná osoba is NOT blocking.
  • publicHealthStatus · string · optionnel · public | outside | unknown
  • rentalAnnualIncome · number · optionnel

  Exemple d'appel

  {"name": "check_flat_tax_eligibility", "arguments": {"annualIncome": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• check_io_trigger≈ 747 tokens

  Checks whether buying services from abroad (Google Ads, Meta, ChatGPT, hosting…) or selling services to EU businesses has made an OSVČ an identifikovaná osoba under § 6h/§ 6i ZDPH, with the 15-day registration deadline (§ 97) and fact-freshness handling. Verdict: ok / check / act_now.

  Paramètres, retour & exemple (7)

  Paramètres

  • today · string · optionnel
    Evaluation date; defaults to today
  • vatStatus · string · requis · unknown | not_registered | identified_person | vat_payer
    Current VAT status of the OSVČ
  • foreignSales · array · optionnel
    Year-to-date foreign client income for the sales-side (§ 6i) check
  • purchaseDate · string · optionnel
    Date of the qualifying purchase; drives the 15-day § 97 registration deadline
  • vatStatusConfirmedAt · string · optionnel
    When the VAT status was last confirmed (freshness window 180 days)
  • foreignServicePurchase · string · requis · unknown | none_confirmed | possible | qualifying_confirmed
    Foreign service purchases: none_confirmed = verified none, possible = maybe (e.g. runs online ads), qualifying_confirmed = a qualifying purchase from a non-CZ supplier is confirmed
  • foreignServicePurchaseConfirmedAt · string · optionnel

  Exemple d'appel

  {"name": "check_io_trigger", "arguments": {"vatStatus": "unknown", "foreignServicePurchase": "unknown"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• check_thresholds≈ 160 tokens

  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 bracket, and the paušální daň eligibility ceiling. Reports approaching (90%), exceeded and remaining amounts.

  Paramètres, retour & exemple (1)

  Paramètres

  • annualIncome · number · requis

  Exemple d'appel

  {"name": "check_thresholds", "arguments": {"annualIncome": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• compare_regimes≈ 429 tokens

  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, spouse), and recommends the cheaper regime.

  Paramètres, retour & exemple (8)

  Paramètres

  • isMarried · boolean · optionnel
  • deductions · object · optionnel
  • annualIncome · number · requis
    Gross annual business income in CZK
  • hasChildUnder3 · boolean · optionnel
  • flatRatePercent · ? · optionnel
    Flat-rate expense percentage as a decimal: 0.4 (other business), 0.6 (most freelancers / živnost volná), 0.8 (craft trades)
  • numberOfChildren · integer · optionnel
  • rentalAnnualIncome · number · optionnel
  • spouseIncomeUnderLimit · boolean · optionnel
    Spouse annual income under the credit limit (sleva na manžela/manželku)

  Exemple d'appel

  {"name": "compare_regimes", "arguments": {"annualIncome": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• compute_year≈ 864 tokens

  Computes a full Czech OSVČ tax year from personal facts: income tax with credits (children, spouse, deductions), social and health insurance, monthly set-aside, safe-to-spend, flat-tax band and regime-eligibility evaluation. All figures come from the deterministic Freelax engine, never from the model.

  Paramètres, retour & exemple (23)

  Paramètres

  • hasZTP · boolean · optionnel
  • taxYear · number · optionnel
    Only 2026 is supported because the engine currently has a 2026 ruleset
  • children · array · optionnel
  • isMarried · boolean · optionnel
  • isNewOsvc · boolean · optionnel
  • taxRegime · string · optionnel · standard | pausal_band_1 | pausal_band_2 | pausal_band_3
  • deductions · object · optionnel
  • activityType · string · optionnel · main | secondary
  • targetRegime · string · optionnel · standard | pausal_band_1 | pausal_band_2 | pausal_band_3
    Simulate a different regime without changing the stored facts
  • hasChildUnder3 · boolean · optionnel
  • citizenshipType · string · optionnel · eu | non_eu_public | non_eu_private
  • disabilityGrade · string · optionnel · none | grade_1_2 | grade_3
  • flatRatePercent · ? · optionnel
    Flat-rate expense percentage as a decimal (0.4 / 0.6 / 0.8)
  • isVATRegistered · boolean · optionnel
  • isCzechTaxResident · boolean · optionnel
  • publicHealthStatus · string · optionnel · public | outside | unknown
  • rentalMonthlyIncome · number · optionnel
  • annualBusinessIncome · number · optionnel
    Exact annual business income in CZK; takes precedence over the monthly figure
  • employerCoversHealth · boolean · optionnel
  • monthlyBusinessIncome · number · optionnel
    Gross monthly business income in CZK (§ 7 ZDP)
  • spouseIncomeUnderLimit · boolean · optionnel
    Spouse annual income under the sleva na manžela limit
  • hasReducedSocialMinimum · boolean · optionnel
  • isExemptFromMonthlyZalohy · boolean · optionnel

  Exemple d'appel

  {"name": "compute_year", "arguments": {"hasZTP": true, "taxYear": 1, "children": [], "isMarried": true, "isNewOsvc": true, "taxRegime": "standard"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• convert_eur_czk≈ 170 tokens

  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 and whether a stale cached ČNB publication had to be used. Fails closed when no verified ČNB rate is available.

  Paramètres, retour & exemple (1)

  Paramètres

  • amountEur · number · requis
    Amount in EUR

  Exemple d'appel

  {"name": "convert_eur_czk", "arguments": {"amountEur": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• czech_working_days≈ 224 tokens

  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 deadline would shift to.

  Paramètres, retour & exemple (2)

  Paramètres

  • date · string · optionnel
    Optional date (YYYY-MM-DD) to test for working-day status
  • year · integer · requis

  Exemple d'appel

  {"name": "czech_working_days", "arguments": {"year": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• estimate_penalty≈ 423 tokens

  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 tax payments, 200 CZK health aggregation floor and the 1,000 CZK tax non-assessment threshold. A dated estimate is rejected when its required rate period falls outside the implemented history.

  Paramètres, retour & exemple (5)

  Paramètres

  • dueDate · string · optionnel
    Original due date (YYYY-MM-DD); anchors the correct half-year repo rate
  • owedAmount · number · requis
    Outstanding amount in CZK
  • daysOverdue · integer · requis
  • obligationType · string · requis · health | social | tax_advance | pausal | pausal_oznameni | pausal_doplatek | tax_return | prehled_social
    Obligation family: health/social insurance debt, tax_advance (záloha na daň), pausal (paušální daň payment), tax_return (late filing), prehled_* (late Přehled), annual_social (doplatek)
  • gracePeriodActive · boolean · optionnel

  Exemple d'appel

  {"name": "estimate_penalty", "arguments": {"owedAmount": 1, "daysOverdue": 1, "obligationType": "health"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• get_filing_deadlines≈ 241 tokens

  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 holiday shifts are applied.

  Paramètres, retour & exemple (2)

  Paramètres

  • route · string · optionnel · standard_deadline | self_electronic_extension | advisor_extension
    Filing route: standard_deadline = paper/no extension (1 April), self_electronic_extension = filed electronically after 1 April (+1 month), advisor_extension = filed by a tax advisor (1 July)
  • taxYear · integer · requis
    The tax year the return is FOR (e.g. 2025 return is filed in 2026)

  Exemple d'appel

  {"name": "get_filing_deadlines", "arguments": {"taxYear": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• get_flat_tax_band≈ 209 tokens

  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 threshold to watch.

  Paramètres, retour & exemple (2)

  Paramètres

  • annualIncome · number · requis
  • flatRatePercent · ? · optionnel
    Flat-rate expense percentage as a decimal: 0.4 (other business), 0.6 (most freelancers / živnost volná), 0.8 (craft trades)

  Exemple d'appel

  {"name": "get_flat_tax_band", "arguments": {"annualIncome": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• get_prehled_deadlines≈ 231 tokens

  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 the payment due date (8 calendar days after the filing deadline).

  Paramètres, retour & exemple (2)

  Paramètres

  • route · string · optionnel · standard_deadline | self_electronic_extension | advisor_extension
    Filing route: standard_deadline = paper/no extension (1 April), self_electronic_extension = filed electronically after 1 April (+1 month), advisor_extension = filed by a tax advisor (1 July)
  • taxYear · integer · requis

  Exemple d'appel

  {"name": "get_prehled_deadlines", "arguments": {"taxYear": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• get_rule_source≈ 212 tokens

  For a Czech OSVČ tax topic, returns the governing rule with current values, primary-source citations (zákon, ČSSZ, VZP, Finanční správa) with verification dates, and related Freelax articles. Topics: pausalni_dan, identifikovana_osoba, dph_registrace, zalohy, prehledy, penale, danove_pasmo_23, vedlejsi_cinnost.

  Paramètres, retour & exemple (2)

  Paramètres

  • topic · string · requis · pausalni_dan | identifikovana_osoba | dph_registrace | zalohy | prehledy | penale | danove_pasmo_23 | vedlejsi_cinnost
  • locale · string · optionnel · en | cs

  Exemple d'appel

  {"name": "get_rule_source", "arguments": {"topic": "pausalni_dan"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

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Source

https://freelax.cz/api/mcp