The best time to reduce import duty US 2026 was before Liberation Day. The second best time is right now, because the legal methods that cut your US customs bill are still available, several of them have hard deadlines running against you, and the tariff regime replacing IEEPA after July 24 will be significantly harder to challenge in court than anything that came before it.
This guide covers every legal mechanism available to US importers in 2026, the real numbers each one produces, and the specific deadlines that make some of them urgent this week.
The 2026 US Tariff Landscape at a Glance
| Tariff | Status | Rate | Key Date |
|---|---|---|---|
| Section 122 global tariff | Active | 10% on all imports | Expires July 24, 2026 |
| Section 301 (China) | Active | 7.5%–25% by HS code | No expiry |
| Section 232 (steel, aluminium, autos) | Active | 25%–50% | No expiry |
| IEEPA tariffs | Struck down Feb 20, 2026 | Refunds in process | 180-day protest clock running |
Why US Import Duty Is Higher Than It Needs to Be in 2026
The average effective US tariff rate hit 13.7% in February 2026, the highest since 1972, even after the Supreme Court struck down IEEPA tariffs. Most importers are paying that burden unnecessarily for one of three reasons:
- They do not know the legal reduction mechanisms exist
- They do not have the compliance infrastructure to claim them
- They have never audited whether their HS codes and customs value declarations are correct
The businesses paying full tariff rates on every shipment without reviewing these tools are overpaying, not because the rates are unavoidable, but because they have not taken the steps to avoid the avoidable portion.
Five Legal Methods That Reduce Import Duty US 2026
1. Claim Your IEEPA Refund Before the Window Closes
According to CBP’s own March 6, 2026 court filing, approximately $166 billion in IEEPA duties were paid by more than 330,000 importers across 53 million entries. The refund is not automatic, and the timeline is uncertain. CBP is building the CAPE (Consolidated Administration and Processing of Entries) system estimated for mid-April 2026, but trade attorneys have warned that full processing could take months or even years given the scale. A comparable historical case, the 1998 Harbor Maintenance Tax refund of $600 million across 100,000 importers, took approximately seven years to process. For unliquidated entries, CBP will re-liquidate automatically once CAPE is operational. For already-liquidated entries, trade attorneys recommend a dual-track approach: register in CAPE as soon as it opens and simultaneously file formal customs protests within 180 days of each entry’s liquidation date as a protective measure. The protest window runs from the individual liquidation date of each entry, not from the Supreme Court ruling. Entries liquidated in October 2024 have deadlines in April 2026. Pull your ACE portal records, identify every entry that carried IEEPA duties, check the liquidation date on each one, and act immediately on entries approaching the 180-day mark. Your Importer of Record should have these records available immediately.
2. First Sale Valuation: Declare at the Manufacturer’s Price
If your supply chain includes a trading company between the manufacturer and your business, US customs law allows you to declare customs value at the first sale price, meaning what the middleman paid the manufacturer, rather than the higher price you paid the middleman. On a $960,000 shipment where the manufacturer’s price was $672,000, First Sale reduces your dutiable value by $288,000. At a combined tariff rate of 32%, that is $92,160 in saved duty per shipment. First Sale requires documented arm’s length transactions on both sides. For US businesses with manufacturing operations in Mexico, IMMEX eliminates duty and IVA on production inputs entirely. Read our guide to reducing import duty Mexico 2026. First Sale is one of the fastest and most consistently underused duty reductions for importers using Asian trading companies.
3. Section 301 Exclusion Comments: File Before April 15
USTR initiated Section 301 investigations into 16 countries on March 11, 2026. The public comment window closes April 15. Filing a comment puts evidence on record before tariff rates are set. Comments that have historically resulted in product-specific exclusions demonstrate one or more of the following:
- Domestic production impact showing the tariff harms US manufacturers more than it protects them
- Supply chain dependency demonstrating no viable alternative source exists for the specific product
- Absence of a US-equivalent confirming the product is not manufactured domestically at sufficient scale
If your goods are in a targeted category, this is time-critical. Our full guide to Section 301 tariffs 2026 covers the filing process in detail.
4. Foreign Trade Zones: Hold Goods Duty-Free Until Sale
A US Foreign Trade Zone allows imported goods to be stored, processed, or assembled without paying customs duty until they leave the zone for domestic consumption. Goods re-exported from an FTZ attract no US duty at all. For manufacturers, FTZs allow duty to be paid on either imported components or the finished product, whichever carries the lower rate. On electronics where component duty rates exceed finished product rates, this produces a meaningful saving on every production run.
5. Duty Drawback: Reclaim Up to 99% of Duty on Exported Goods
Duty drawback allows US importers to recover up to 99% of customs duties paid on imported goods that are subsequently exported. The three main types are:
- Direct identification drawback: Recovery on the same imported goods that are exported
- Manufacturing drawback: Recovery on imported inputs used to manufacture goods that are then exported
- Substitution drawback: Recovery when similar domestic goods are exported in place of the imported goods
Claims can go back five years. Canadian importers exporting to the US can also recover duty through Canada’s own drawback programme, which allows 100% recovery compared to the US limit of 99%. See our guide on how to reduce import duty Canada 2026. For any business with export activity, a drawback programme typically recovers significantly more than its administrative cost. Most businesses with export operations that have never filed a drawback claim are leaving recoverable money on the table.
Real Example: What a US Importer Saved on Chinese Goods
A US consumer goods importer sourcing kitchenware from a Hong Kong trading company that buys from a Guangdong factory. Trading company invoice to the US importer: $960,000. Factory invoice to the trading company: $672,000. Combined Section 301 and Section 122 tariff rate: 32%.
- Duty before First Sale: $307,200
- Duty after First Sale: $215,040
- Annual saving: $92,160
- Setup cost: $9,500 one-time
- Payback period: First shipment
What Most US Importers Get Wrong
The most expensive mistake is waiting for the IEEPA refund system to surface money automatically on liquidated entries. It will not. Every day an importer waits on a liquidated entry approaching its 180-day protest deadline is a day of potential refund that cannot be recovered once the window closes. The second most common mistake is classifying goods under the same HS codes used before 2025 without checking whether a more accurate classification produces a lower duty rate under the current tariff schedule. Classifications that were low-impact before Liberation Day are now material financial decisions on every shipment.
How to Start Reducing Your US Import Duty This Week
- Pull your ACE records today. Identify every entry that carried IEEPA duties and check the liquidation date. File protests on any entry approaching its 180-day deadline.
- File Section 301 exclusion comments before April 15. If your goods from any of the 16 investigated countries fall in targeted sectors, this window does not reopen.
- Check your supply chain for First Sale eligibility. If a trading company sits between your business and the manufacturer, First Sale Valuation is almost certainly worth exploring immediately.
Speak to the Carra Globe trade compliance team to assess your IEEPA refund position, Section 301 exposure, and July 24 tariff landscape across all active import corridors into the United States.
How Carra Globe Supports US Importers
For businesses without an in-house trade compliance team, specialist support across these programmes typically recovers more in duty savings than it costs. Carra Globe provides the following across US import corridors:
- Importer of Record (IOR): Legal importing entity with active HS code review, IEEPA protest filing, and ongoing duty management on every entry.
- Delivered Duty Paid (DDP): End-to-end delivery with explicit duty rate change provisions so July 24 tariff changes do not produce unplanned cost exposure.
- Global Trade Compliance: Section 301 exclusion filing, First Sale Valuation setup, duty drawback management, and HS code audits across all US import corridors.
- Freight Forwarding: Origin optimisation across active corridors as Section 301 tariffs reshape the cost structure after July 24.
Frequently Asked Questions: Reduce Import Duty US 2026
Are IEEPA tariff refunds automatic or do I need to apply?
It depends on entry status. Unliquidated entries will be re-liquidated automatically once CBP’s CAPE system is operational. Already-liquidated entries require a formal customs protest within 180 days of the liquidation date. That window is running now. Check every liquidated entry individually and file before its specific deadline expires.
What happens to US import duty after July 24, 2026?
The Section 122 global tariff of 10% expires July 24. Section 301 tariffs are expected to replace it, targeting the same 16 countries currently under investigation. Unlike IEEPA, Section 301 tariffs have no expiry date, no rate cap, and a 50-year legal track record. What replaces Section 122 on July 24 is likely permanent. Plan accordingly rather than waiting for another court ruling.
Can I reduce import duty on goods from China in 2026?
Yes. Check your HS codes against the current Section 301 exclusion list. Explore First Sale Valuation if a middleman sits in your supply chain. Use duty drawback if you export goods incorporating Chinese-origin inputs. Apply for FTZ status if volumes justify it. File Section 301 exclusion comments before April 15 if your product categories are targeted in the current investigation.
What is First Sale Valuation and who qualifies?
First Sale allows US importers to declare customs value at the manufacturer’s price rather than the middleman’s resale price. Both transactions must be documented arm’s length sales. Most importers using Asian trading companies qualify in principle but have never implemented the programme. Setup requires a documentation system with your supplier and a binding ruling from CBP to lock in the approach.
How does duty drawback work and how far back can I claim?
Duty drawback recovers up to 99% of customs duties paid on imported goods that are subsequently exported. The three main types are direct identification drawback, manufacturing drawback, and substitution drawback. Claims can go back five years from the date of export. For any US business with export activity that has never filed a drawback claim, this is almost certainly a significant unclaimed recovery.
Does a Foreign Trade Zone eliminate all US import duty?
Not all duty, but it defers it until goods enter US commerce and eliminates it entirely on goods that are re-exported. For manufacturers, the additional benefit is choosing to pay duty at the lower of the component rate or finished product rate. This is particularly valuable where assembly in the US significantly changes the tariff classification of the finished product compared to its imported components.
How do I check if my HS codes are costing me more duty than necessary?
Pull your last 12 months of customs entries from ACE and run this three-step check:
- Check the rate you are paying against the current duty rate for each HS code in the USITC Harmonized Tariff Schedule
- Verify the classification is correct based on your product’s physical characteristics, material composition, and function, in that order of priority
- Identify whether a more accurate classification would produce a different HS code with a lower rate under the current Section 301 and Section 122 stacked environment
Classifications that were low-impact before 2025 are now financially significant. A professional HS code audit on your full product catalogue is the fastest action most importers can take to reduce duty without changing anything else.