The Tariff Deadline Every Importer Is Ignoring in 2026
Most of the trade coverage in 2026 has focused on what the Supreme Court did in February. IEEPA tariffs struck down. Refunds incoming. A temporary 10% global rate slapped on in its place. Crisis averted.
That reading is wrong.
The Supreme Court ruling did not end the tariff story. It started a new chapter with a harder deadline and a more durable legal mechanism. The businesses treating this moment as breathing room are the ones that will be scrambling in August.
Here is what is actually happening.
The 150-Day Bridge Nobody Is Talking About
On the same day the Supreme Court struck down IEEPA tariffs, the Trump administration invoked Section 122 of the Trade Act of 1974 and imposed a flat 10% global tariff on all imports. Section 122 is a rarely used emergency authority. It is also legally capped at 150 days and a maximum rate of 15%.
That clock started on February 24, 2026.
Do the arithmetic. It runs out on July 24, 2026.
The administration has been explicit about what happens next. US Treasury Secretary Scott Bessent stated publicly that tariff rates will return to their pre-SCOTUS levels within five months. The mechanism to get there is Section 301 of the Trade Act of 1974. On March 11 and 12, USTR launched two sweeping Section 301 investigations covering 76 countries. The goal is to have findings ready and new tariffs in place by the time Section 122 expires.
July 24 is not the end of tariffs. It is the transition point from a temporary bridge to a permanent structure.
Why Section 301 Is Different From Everything That Came Before
IEEPA tariffs were struck down because the Supreme Court ruled IEEPA was never designed to authorise tariffs. Section 122 tariffs will expire because the statute limits them to 150 days.
Section 301 has neither of those weaknesses.
It is an explicit statutory grant of tariff authority. It has been used by Republican and Democratic administrations for decades. The original China Section 301 tariffs imposed in 2018 are still in force today, seven years later, having survived more than 4,000 legal challenges. There is no expiry date. There is no rate cap. Once Section 301 tariffs land, they stay until USTR actively removes them.
The current Section 122 rate is a flat 10% on everything from everywhere. Section 301 does not work that way. It is country-specific and product-specific. Historical rates on China-origin goods range from 7.5% to 100% depending on the product category. Vietnamese electronics, Indian machinery, and Mexican automotive components could each carry different rates once the investigation findings land.
The Real Numbers
A $500,000 IT hardware shipment from Vietnam costs $50,000 in duties today at the current 10% rate.
If Section 301 findings place Vietnamese electronics at 25%, that same shipment costs $125,000 in duties.
At 50%, it reaches $250,000.
That is not a worst-case scenario. Those are rates currently in force on equivalent China-origin goods right now. Businesses that shifted sourcing from China to Vietnam after 2018 specifically to avoid Section 301 tariffs are now watching Vietnam named in the same investigation list.
What Importers Need to Do Before July 24
There is one action window that most businesses are completely missing. USTR is accepting public comments on both investigations until April 15, 2026. Businesses can submit arguments for product-specific exclusions from Section 301 tariffs. During the original 2018 China proceedings, well-structured exclusion requests saved importers millions in duty costs. That same mechanism is open right now. After April 15, it closes.
Beyond exclusions, every importer sourcing from the 76 countries under investigation needs to be running scenario models against their active contracts. Any DDP arrangement priced at today's 10% rate carries serious exposure if Section 301 lands at 25% or above. The 180-day protest window for IEEPA refund claims on already-liquidated entries is running right now on every affected entry.
The businesses that come out ahead in tariff transitions are not the ones with the most sophisticated legal teams. They are the ones that started modelling scenarios before the rates changed rather than after.
July 24 is 116 days away. That is enough time to act if you start now.
For the full breakdown including all 76 countries under investigation, real cost models at every tariff scenario, the complete six-step action plan, and how to file Section 301 exclusion comments before April 15, read the full guide:
Carra Globe provides Importer of Record, Exporter of Record, and DDP services across 175+ countries. If you are navigating Section 301 exposure across your active import corridors, visit carraglobe.com to speak with our trade compliance team.

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