Post-Ruling Analysis Tool
Historical IEEPA
Duty Impact Analysis
On February 20, 2026, the Supreme Court ruled that tariffs imposed under the International Emergency Economic Powers Act exceeded executive authority. This tool models historical duty impact based on entry date, declared value, country of origin, and published tariff schedules.
Regulatory timelines under 19 U.S.C. § 1514 remain applicable to entries made during the IEEPA tariff period. All estimates are illustrative.
Coverage
185+ countries
Rate Range
10%–145%
Exclusions
35 categories
Unit Tests
165 passing
Capabilities
What this tool does
Assessment
Instant duty impact estimate
Enter entry date, declared value, and HTS code. The estimator computes historical IEEPA duty impact in seconds using published tariff schedules and executive order dates.
Audience
Built for trade professionals
Designed for customs brokers, trade compliance teams, and importers who need a quick initial assessment before engaging counsel or taking formal action.
Transparency
Every assumption documented
Calculations reference published tariff schedules, Federal Register citations, and standard CBP liquidation timelines. All inputs, data sources, and limitations are visible.
Process
How it works
01
Input entry data
Entry date, declared value, HTS code, and country of origin. The estimator looks up the applicable IEEPA rate from published tariff schedules.
02
Review analysis
Calculation breakdown with rate source, Federal Register citation, applicable executive order, and estimated duty impact range with conservative and upper-bound multipliers.
03
Export & consult
Download the analysis pack (PDF summary, CSV data) and review with your customs broker or compliance team before taking any formal action.
Architecture
Enterprise-grade infrastructure
No financial data leaves the browser. HTS code search queries an on-server reference index. Zero external API dependencies.
Computation
Client-Side Calculation Engine
All duty calculations run locally in the browser. Declared values, entry dates, and results are never transmitted to any server.
Dependencies
Zero External Services
No third-party APIs, no database, no billing infrastructure. Tariff data is bundled as static JSON at build time.
Deployment
White-Label & Air-Gap Ready
Rebrand via environment variables. Deploy behind corporate firewalls with no internet connectivity required at runtime.
Validation
165 Unit Tests, FR Citations
Every rate period and exclusion links to its Federal Register source document. Comprehensive test suite covers all calculation logic.
Reference
Research & analysis
Refund Calculator Guide→
Estimate refund eligibility after the SCOTUS ruling. HTS-level analysis of duties paid under EO 14257, 14259, and 14266.
HTS Code Duty Lookup→
Chapter 99 classification system, country-specific reciprocal rates, and how to locate IEEPA codes on CBP Form 7501.
Duty Rates by Country→
Complete table of IEEPA reciprocal tariff rates for 185+ countries. Tier 1 (30%+), Tier 2 (20-29%), and baseline (10%).
Protest Deadline Calculator→
180-day protest window under 19 U.S.C. Section 1514. Decision tree for liquidation status and PSC vs. formal protest paths.
Stacked Tariff Analysis→
How Section 301, Section 232, and IEEPA tariffs interact. Isolating the refundable IEEPA component from stacked duties.
CBP CAPE Refund System→
How CBP's new CAPE platform processes IEEPA duty refunds. CSV upload, automated recalculation, and ACH disbursement.
Run your analysis
60 seconds. No login. Your data stays in your browser.