US Tariff Lookup
Business
Only for iPhone
$29.99 · Designed for iPhone. Not verified for macOS.
iPhone
Updated for post-IEEPA era. Section 122 (10%) accurately reflected in the latest version.
Instant U.S. import duty calculation for trade professionals.
HTS code lookup, Section 301/232, reciprocal tariffs, auto tariffs — enter an HTS code and import date to get your complete tariff stack in seconds.
[What This App Does]
Automatic Tariff Stack Calculation
Section 301 (China additional tariffs) — automatically determines which rates apply and which don't, item by item. Multiple overlapping tariffs are clearly displayed on a single screen.
Auto 232 vs. Reciprocal Tariff Sorting
Section 232 (autos & parts) and reciprocal tariffs (IEEPA) are never applied simultaneously. The app automatically screens each HTS code and shows which applies, giving you an accurate cost simulation.
Import-Date-Specific Tariff Rates
Reciprocal tariff rates vary by import date. Enter the import date and the app instantly displays the exact rate in effect at that time.
Liquidation Deadline & Protest Management
Auto-calculates the statutory liquidation deadline under 19 USC §1504(a). Visualizes Protest filing deadlines for entries subject to potential reciprocal tariff refunds — preventing missed refund opportunities.
Comprehensive Tariff Database
Covers MFN, FTA, Column 2, Section 301, Section 232, and the Japan-US Trade Agreement (15% floor calculation). Search 200+ HTS codes instantly by product name in Japanese or English.
[Who It's For]
Import/export, logistics & legal teams at US-market companies
Freight forwarders & customs brokers
Finance & planning teams modeling tariff costs
Individual importers & cross-border e-commerce sellers
[Disclaimer]
This app is designed to assist and streamline trade operations. For final customs filings, always rely on the latest USITC data and the judgment of a licensed customs professional.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Fixed Section 122 tariff rate to accurate 10% (replacing IEEPA tariffs invalidated by Supreme Court)
- Correctly reflects the 150-day application period through July 24, 2026
The developer, JUNICHI SHINOZUKA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- JUNICHI SHINOZUKA
- Size
- 24.5 MB
- Category
- Business
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Junichi Shinozuka
