In February 2026, the Supreme Court struck down IEEPA-based tariffs. Within hours, the administration activated Section 122 of the Trade Act of 1974 — a rarely used provision that imposes a 10% global surcharge for up to 150 days. That surcharge has been in force since February 24 and is set to expire July 24, 2026.
In May 2026, the Court of International Trade ruled Proclamation 11012 — the order activating Section 122 — was unlawfully issued. The Federal Circuit issued a stay the following week, meaning tariffs continue to be collected while the appeal proceeds. Nothing changes at the border today, but importers who have preserved their records may be entitled to refunds if the appeal fails.
The July 24 deadline is fixed by statute and cannot be extended unilaterally. Regardless of how the appeals court rules, Section 122 expires on that date. What replaces it — expanded Section 301 coverage, new Section 232 orders, or nothing — remains an open question.
Use this library based on your situation: Professional importers and customs teams → start with Tariff Fundamentals. Amazon FBA sellers → go directly to the FBA & Tariffs section. Consumers buying from overseas → see Online Shopping & De Minimis. All calculators are free and updated for the current rate environment.
US Import Tariff Calculator
All tariff layers broken down — MFN, Section 301 Forced Labor, Section 301 (China), Section 232
Amazon FBA Profit Margin Calculator
Real FBA margin after tariffs, Amazon fees, and shipping costs
Landed Cost Calculator
Total import cost including product, shipping, insurance, tariffs, and fees
Tariff Comparison Calculator
Compare import costs between two countries side by side
De Minimis Calculator
Is your package duty-free? Check the $800 exemption instantly
⚡ NEW — Section 122 Expired: New Section 301 Duties on 60 Countries Now in Effect
What changed on July 24, 2026, new rates by country, and what importers must do now
How to Calculate US Import Duty: Step-by-Step
The complete formula with MFN, Section 301 Forced Labor, Section 301, Section 232, and processing fees
Section 122 Tariff Explained: The 10% Global Surcharge
What it is, who's exempt, when it expires, and how it stacks
What Happens When Section 122 Expires July 24, 2026?
Three scenarios and how to prepare your import business
US Tariff Rates by Country 2026: Complete Reference
Quick reference for every major trading partner's tariff rates
Customs Value Explained: How Duties Are Calculated
What's included, what's not, and common mistakes
Incoterms and Import Duties: How Shipping Terms Affect Costs
FOB, CIF, EXW, DDP — how each affects your tariff bill
Section 301 Investigations: 16 Countries Face New Tariffs
Which countries are under investigation and what it means
Trade Court Rules Section 122 Tariffs Invalid — What Importers Need to Know
CIT ruling, Federal Circuit stay, and what it means for refund eligibility
US Tariffs on Chinese Goods in 2026: Complete Guide
All four tariff layers explained with real-world examples
Vietnam vs China Tariffs: Which Is Cheaper?
Detailed comparison — when Vietnam wins, when China still makes sense
China Plus One Strategy: Diversify Your Supply Chain
How to reduce tariff risk with alternative suppliers
How to Get Your IEEPA Tariff Refund in 2026
Step-by-step guide to reclaiming duties paid under struck-down tariffs
Tariffs on Amazon FBA Products: What Every Seller Must Know
Rates by category, landed cost formula, and strategies
How to Calculate FBA Profit Margins With Tariffs
The real formula most sellers get wrong
Best Countries to Source FBA Products (Lowest Tariffs)
Country-by-country comparison for Amazon sellers
Amazon FBA Fees + Tariffs: Complete Cost Breakdown
Every cost from sourcing to sale with real numbers
FBA Product Research: Why Tariffs Must Be Your First Check
Avoid unprofitable products by checking duties first
5 Tariff Mistakes That Kill Amazon FBA Profits
Common errors and how to fix them
What Is Landed Cost? Complete Guide
Everything included in landed cost and why it matters
Landed Cost: China vs Vietnam vs Mexico
Real side-by-side comparison with actual numbers
USMCA Tariff Benefits: Save 10%+ on North American Imports
How to qualify and how much you save
7 Hidden Import Costs Beyond Tariffs
Demurrage, exam fees, anti-dumping duties, and more
7 Ways to Legally Reduce Your Import Tariffs
FTZs, HTS optimization, trade agreements, duty drawback
Is the $800 De Minimis Exemption Still Valid for China?
Short answer: No. Here's what changed
The $800 De Minimis Threshold Explained
Which countries qualify, which don't, and future changes
Tariffs on Temu & Alibaba Orders 2026
Real examples of what you'll pay in duties
How Much Will I Pay in Tariffs on Temu and Shein?
Exact amounts by product category
AliExpress Tariffs in 2026: Guide for US Buyers
How duties are collected and tips to save money
Dropshipping From China: How Tariffs Changed Everything
Why the old model is broken and what to do instead
Buying From Overseas? Here's What Tariffs You'll Pay
Simple guide for personal purchases