Official source directory
View Calculation MethodologyNothing on this site is a scraped guess. Every duty rate, fee threshold and compliance rule traces to a named instrument published by one of the authorities below, and each tool shows the instrument plus the date the data was last verified. Where an authority publishes on a fixed cycle, the refresh tier further down says how often we re-check it.
India
- Central Board of Indirect Taxes & Customs (CBIC) Government of IndiaCustoms duty, Duty Drawback (AIR schedule), central excise, customs notifications
- CBIC GST Portal Government of IndiaGST rates by HSN, GST notifications, circulars
- Directorate General of Foreign Trade (DGFT) Ministry of Commerce & IndustryIEC issuance and format, RoDTEP (Appendix 4R), Foreign Trade Policy, EPCG, SCOMET list, FTA implementation notices
- Directorate General of Trade Remedies (DGTR) Ministry of Commerce & IndustryAnti-dumping duty, countervailing duty, safeguard measure notifications
- ICEGATE CBICShipping bill filing, port and ICD codes, AD code registration, customs e-filing
- Reserve Bank of India (RBI) RBIFEMA regulations, EDPMS/e-BRC realisation timelines, Interest Equalisation Scheme circulars
- GST Council Government of IndiaGST rate decisions and Council meeting outcomes
- Insurance Regulatory and Development Authority of India (IRDAI) Government of IndiaMarine cargo insurance regulatory framework
US
- US International Trade Commission (USITC) - HTS Federal GovernmentHarmonized Tariff Schedule (HTS) codes and MFN base duty rates
- Office of the US Trade Representative (USTR) Federal GovernmentSection 301 tariff lists and actions, FTA negotiations
- US Customs and Border Protection (CBP) Dept. of Homeland SecurityMPF and HMF fees, duty drawback, customs bonds, country-of-origin marking rules, CSMS trade messages, rulings database
- Federal Register National ArchivesOfficial publication of tariff actions, fee notices, executive orders
- US Census Bureau - Foreign Trade Dept. of CommerceSchedule B export codes, official US trade statistics
EU
- EU Taxation and Customs Union - TARIC European CommissionTARIC 10-digit codes, duty rates, trade-defence measures
- Access2Markets European CommissionTariffs, rules of origin and import procedures for EU trade partners
- EU Taxation and Customs Union - CBAM European CommissionCBAM certificate requirements, default emission values, de-minimis rules
- EUR-Lex European UnionFull legal texts: CBAM (2023/956), EUDR (2023/1115), Dual-Use (2021/821), VAT Directive
- TRACES NT European CommissionEUDR due-diligence statement filing, phytosanitary and veterinary certification
- EORI Validation Service European CommissionLive EORI number validation
- European Energy Exchange (EEX) EEX AGEU ETS carbon allowance auction price, which feeds CBAM certificate cost
UK
- UK Global Tariff / Trade Tariff Service HM GovernmentUK import duty rates post-Brexit
- HM Revenue & Customs (HMRC) UK GovernmentUK import VAT, Postponed VAT Accounting, customs procedures
Global
- International Chamber of Commerce (ICC) ICC ParisIncoterms® 2020, UCP 600, URDG 758, ISP98, ISBP 821, URR 725
- World Customs Organization (WCO) WCOHarmonized System (HS) nomenclature, Rules of Origin (GATS), Customs Valuation Agreement
- World Trade Organization (WTO) WTOTrade Facilitation Agreement (TFA), Anti-Dumping Agreement, Subsidies and Countervailing Measures (SCM)
- United Nations (UN) UN SanctionsConsolidated UN Security Council Sanctions List
- OFAC (US Treasury) US GovernmentSDN List and Sectoral Sanctions Identification (SSI) List (global impact)
How often each dataset is refreshed
Tier 1 - Live / weekly
US tariff stack (Section 301/232), EU carbon price (ETS), India anti-dumping duty, Global sanctions (OFAC/UN/EU)
Automate ingestion where the source publishes machine-readable data, and always show a verified-as-of stamp - this tier is too volatile to imply real-time accuracy.
Tier 2 - Quarterly or on notification
India GST/HSN rates, RoDTEP, export incentives, US HTS updates, EU CBAM intensities & EUDR scope
Subscribe to the official notification feed and re-verify on a calendar reminder even when no notification arrives; these bodies do not always push proactively.
Tier 3 - Annual (Budget / fiscal cycle)
India duty drawback (AIR, Union Budget), US MPF fee notice, customs bond formula, carrier DIM divisors, EU national VAT rates
Review on the known publication window: India Budget in February, US federal fiscal year in October, carrier rate guides in January.
Tier 4 - Static, rarely changes
Incoterms® 2020 ruleset, UCP 600 articles, ISBP 821, IEC validator, ICEGATE port codes
A light annual sanity check against the source is enough - these are format and logic tools, not live datasets.
Tier 5 - User input, no external dataset
EDPMS / e-BRC reconciliation, EPCG obligation tracker, buyer KYC router - all driven by your own data
No dataset to maintain; just confirm the destination portal URLs still resolve, roughly quarterly.
Browse tools by jurisdiction: India, United States, European Union.