Statutory Verification Standard • Zero Hallucination
Metodologia Obliczeń i Rejestr Źródeł Prawnych
W Zetawala Money dokładność jest fundamentem zaufania. Nasze kalkulatory korzystają wyłącznie z oficjalnych aktów prawnych (Dziennik Ustaw, ZUS, Ministerstwo Finansów). Rejestr prezentuje zastosowane algorytmy, progi kwotowe i cykle aktualizacji.
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Quarterly & Annual Update Cadence
Statutory Valid-From Tracking
| Calculator & Domain | Mathematical Formula | Statutory Legal Source | Current Values in Force | Valid From | Update Rhythm |
|---|---|---|---|---|---|
| IBAN Checker & National Validator BankingGlobal / SEPA | ISO 13616 modulo 97 check: move first 4 characters to tail, convert letters A=10..Z=35, chunked remainder must equal 1. | ISO 13616:2020 & SWIFT Official IBAN RegistryPure in-browser execution with zero transmission over the wire. | 80+ country structures; bonus national checks: BE mod 97, FR RIB key 97, ES CIN mod 11, IT CIN control character. | 2026-01-01 | Quarterly registry review / upon ISO standard amendments |
| German BLZ Search & Account-to-IBAN BankingGermany (DE) | DE + CheckDigits(MOD-97) + BLZ (8 digits) + AccountNumber (10 digits left-padded with zeros). | Deutsche Bundesbank Bankleitzahlendatei (Open Data)Split JSON chunks by first digit for instantaneous, zero-latency client search. | 3,432 credit institutions, BLZ routing codes, BIC identifiers, postal codes and cities. | 2026-03-02 | Quarterly (March, June, September, December) upon Bundesbank release |
| SWIFT / BIC Code Validator BankingGlobal | 4 letters (Bank code) + 2 letters (ISO country) + 2 alphanumeric (Location) + optional 3 alphanumeric (Branch). | ISO 9362:2014 Business Identifier CodesOnly official syntax verified; commercial BIC directories are not scraped. | 8- and 11-character formatting validation with geographic country code verification. | 2026-01-01 | Annual standard verification |
| UK VAT Calculator Tax & VATUnited Kingdom (UK) | Forward: Gross = Net × (1 + Rate); Reverse: Net = Gross / (1 + Rate); VAT = Gross – Net. | Value Added Tax Act 1994 (HMRC)Half-up fractional penny rounding in compliance with HMRC notice 700. | Standard rate: 20%, Reduced rate: 5%, Registration threshold: £90,000. | 2011-01-04 | Yearly / per Chancellor of the Exchequer budget statements |
| German MwSt.-Rechner Tax & VATGermany (DE) | MwSt-Betrag = Nettobetrag × Steuersatz; Bruttobetrag = Nettobetrag + MwSt-Betrag. | Umsatzsteuergesetz (UStG) § 12Kaufmännische Rundung auf volle Cent gemäß § 14 UStG. | Regelsteuersatz: 19 %, Ermäßigter Steuersatz: 7 %. | 2007-01-01 | Yearly / upon federal legislative amendments |
| Polish VAT Calculator Tax & VATPoland (PL) | Brutto = Netto × (1 + Stawka_VAT); Kwota_VAT = Brutto – Netto. | Ustawa o podatku od towarów i usług (Dz.U. 2024 poz. 361)Dokładność do grosza z zaokrągleniem matematycznym. | Stawka podstawowa: 23%, Stawki obniżone: 8% i 5%. | 2011-01-01 | Rocznie / według nowelizacji ustawy o VAT |
| Schengen 90/180 Day Short-Stay Calculator TravelEuropean Union (29 States) | Rolling window: For any reference date D, days spent = sum of days present in [D – 179, D]. Entry and exit days count as 1 full day each. | Regulation (EU) 2016/399 (Schengen Borders Code)Matches the exact logic of the European Commission official short-stay calculator. | 29 Schengen states (including Bulgaria and Romania from 1 Jan 2025; Cyprus and Ireland excluded). Maximum allowance: 90 days. | 1997-12-01 | Per European Commission accession and border regulation updates |
| UK Electricity Cost Calculator Home & EnergyUnited Kingdom (UK) | Energy (kWh) = (Power in Watts / 1000) × Hours used; Running Cost = Energy × Unit Rate + Standing Charge. | Ofgem Default Tariff Price Cap DeterminationsDefault appliance database with 25 household appliances based on Energy Saving Trust benchmarks. | Price cap: 24.5p/kWh unit rate, 60.1p/day standing charge. | 2026-01-01 | Quarterly (1 January, 1 April, 1 July, 1 October) upon Ofgem publication |
| Australia Electricity Cost Calculator Home & EnergyAustralia (AU) | Cost ($) = (Watts / 1000) × Hours × State Tariff Rate ($/kWh). | Australian Energy Regulator (AER) Default Market Offer (DMO)State-specific standing charges and default market offers. | National average: 33.2c/kWh; NSW: 34.5c/kWh; VIC: 28.7c/kWh. | 2025-07-01 | Annually on 1 July upon AER DMO determinations |
| Road Fuel Trip Cost Calculator TravelUK, Australia, Canada, Germany | Fuel Volume (L) = (Distance / 100) × Consumption (L/100km); Trip Cost = Volume × Price per Litre. | DESNZ (UK), AIP (AU), NRCan (CA), ADAC (DE)Supports automatic bidirectional unit conversion between MPG and L/100km. | UK: 138.5p petrol, 143.2p diesel; AU: 182.4c petrol; CA: 156.2c regular. | 2026-01-01 | Weekly / monthly based on government statistical bulletins |
| Turkey Kıdem & İhbar Tazminatı ve Maaş SalaryTurkey (TR) | Kıdem: 30 gün giydirilmiş brüt ücret (max tavan) × Yıl; Kesinti: yalnızca Damga Vergisi (%0,759). İhbar: 2–8 hafta ücreti – Gelir Vergisi – Damga Vergisi. | 1475 SK m.14, 4857 SK m.17, HMB Maliye Genelgesi, 193 SK m.103Full cumulative tax bracket progression month by month with statutory minimum wage tax exemption. | Asgari Ücret: 26.005,5 TL brüt / 22.104,67 TL net; Kıdem Tavanı: 59.250 TL. | 2026-01-01 | Twice a year (January and July) for severance ceiling; annually for tax brackets and minimum wage |
| Poland Kalkulator Wynagrodzeń & B2B SalaryPoland (PL) | UoP: Brutto – ZUS (13,71%) – NFZ (9%) – PIT (12%/32% po KUP i uldze 300 zł). B2B: Przychód – Koszty – ZUS społeczny – NFZ (skala/liniowy/ryczałt) – Podatek dochodowy. | Ustawa o PIT, Ustawa o SUS, Rozporządzenie RM w sprawie płacy minimalnej (Dz.U. 2024 poz. 1362)Handles Ulga na start, ZUS preferencyjny, Mały ZUS Plus, Ulga dla młodych, and PPK. | Płaca minimalna: 4666 zł, Limit 30-krotności: 260 190 zł. | 2026-01-01 | Annually on 1 January (with occasional mid-year minimum wage adjustments) |
| Romania Calculator Salariu & PFA vs SRL SalaryRomania (RO) | Salariu: Brut – CAS (25%) – CASS (10%) – Impozit (10% după deducere art. 77). PFA: Venit net – CAS (12/24 salarii) – CASS (10% plafonat la 6-60 salarii) – Impozit (10%). | Legea nr. 227/2015 Codul Fiscal, HG nr. 141/2025, OUG nr. 115/2023, Legea nr. 296/2023Exact regressive personal deduction calculation based on number of dependents and school attendance. | Salariul minim: 4.050 lei brut / 2.574 lei net (cu scutirea de 300 lei neimpozabili), CAM: 2.25%. | 2026-01-01 | Annually / upon Emergency Ordinances and Government Decisions |
Reporting a Discrepancy or Legislative Change
Our engineering team monitors gazette publications, statutory instruments, and central bank announcements daily. If you represent an official body or identify an impending tax bracket revision or regulatory update, please submit it via our contact form. Updates with official gazette citations are reviewed and deployed within 24 hours.