Shipping CNC Parts from China: Freight, Tariffs & Customs
Freight costs, transit times, FOB vs DDP, the 2026 tariff reality, and how customs actually clears your parts — everything between “order placed” and “parts on your dock.”
IsoCNC Engineering Team
CNC Machining & DFM Engineers · Updated · 11 min read
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Quick Answer
Prototypes and urgent small batches fly — express courier at $8.50–15/kg lands in 2–5 days. Production volumes sail — ocean LCL around $130/CBM or a full container at roughly $4,600–5,600. On duty, the 2026 rule is simple: the $800 de minimis exemption is gone, so even a single sample pays full tariff, and most machined parts carry the 25% Section 301 rate (plus Section 232 on steel and aluminum content). Use DDP for one-off convenience, FOB or CIF with your own broker for volume — and have a broker price your exact HTS code before you compare suppliers.
The 2026 Tariff Reset: What Changed
Three changes define importing CNC parts from China in 2026, and most buyers only know about one of them. First, the $800 de minimis exemption is dead. Suspended for China and Hong Kong on May 2, 2025, and for every country on August 29, 2025, it no longer shields low-value shipments: a $50 prototype now needs formal entry, a 10-digit HTS code, and full duty, exactly like a production pallet. Second, the IEEPA “fentanyl” tariffs are gone. The US Supreme Court struck them down on February 20, 2026, and Customs stopped collecting them on February 24 — so the extra 20% many buyers still budget for no longer applies. Third, Section 301 is still here. It remains the dominant duty on machined parts, and its exclusion process has been closed to new petitions since 2021.
What You Actually Pay: The Duty Stack
Tariffs on a China-origin machined part are layered, not single. They stack on the declared value of the goods (not the machining price you negotiated), and the total depends on your HTS classification:
| Tariff layer | Applies to | Typical rate (2026) |
|---|---|---|
| MFN base duty | All imports, by HTS code | 0–5% for most metal parts |
| Section 301 | China-origin machined parts (8466/8483/7616 etc.) | 25% (some categories higher) |
| Section 232 | Steel / aluminum / copper content | Steel 25–50%, aluminum 10–25% |
| De minimis ($800) | Low-value shipments | Eliminated — no longer applies |
The practical numbers: a 6061 aluminum part under an aluminum HTS code commonly lands around 25% Section 301 plus 10–25% Section 232 on the aluminum content, plus base duty. A steel part can exceed 50% total. Because the rates are classification-specific and the policy environment has been volatile, treat any number here as planning guidance — have a licensed broker price your exact HTS code before you commit. For the machining-side cost picture, see our China CNC machining cost breakdown.
Freight: Express, Air, or Sea
The mode you pick is really a time-versus-money decision, and the crossover points are surprisingly clean:
| Mode | Cost | Transit time | Best for |
|---|---|---|---|
| Express courier (DHL/FedEx/UPS) | $8.50–15/kg | 2–5 days | Prototypes, urgent small parts |
| Air freight | $3.50–8/kg | 5–10 days | Time-sensitive batches |
| Ocean LCL (less-than-container) | ~$130/CBM | 25–40 days | Mid-size batches, not urgent |
| Ocean FCL (full container) | $4,600–5,600 per 20GP (spot, volatile) | 14–22 days (West Coast) | Production volumes |
As a budgeting rule, air costs roughly five to eight times ocean per kilogram but arrives in days instead of weeks. For machined parts the working math is simple: on a small air-freighted batch, freight adds a few dollars per part; at ocean volumes, it falls to cents per part. Choose express for one-off prototypes, air for urgent small batches, LCL for mid-size orders, and FCL once you are shipping production volumes. Rates move with fuel and seasonality, so a recent quote beats a remembered number.
FOB vs DDP (and the Terms in Between)
The Incoterm decides who owns the freight and the customs risk at every step. For China CNC buyers, four matter: EXW (factory gate — you take everything, rarely worth it unless you run your own logistics), FOB (supplier hands over at the Chinese port; you own ocean/air freight, insurance, and US clearance), CIF (supplier covers freight and insurance to the destination port; you handle import clearance and duty), and DDP (supplier delivers to your door, duty paid).
The FOB-vs-DDP choice is a control-versus-convenience trade. DDP is the right call for prototypes and small orders — the supplier bundles freight and duty into one price and you get a door-to-door delivery with no paperwork. FOB (or CIF) is usually better for volume, because you see the real freight and duty line items, control the carrier, and avoid the markup suppliers build into DDP duty estimates. Whichever you choose, get the term in writing and confirm who pays the import duty — “DDP” and “DAP” differ by exactly that duty, and it is the single most common misunderstanding in cross-border machining quotes.
Customs: How Your Parts Actually Clear
1. Classify. Every part gets a 10-digit HTS code — defined by material, function, and construction. This code sets your duty rate, so getting it right is the highest-leverage step in the whole import.
2. Document. You need a commercial invoice (description, value, quantity, country of origin) and a packing list. “Sample” or “prototype” on the invoice changes nothing — the HTS code and value do the work.
3. File. A licensed customs broker files the entry with US Customs and Border Protection, pays the duty on your behalf, and arranges release and final-mile delivery.
4. Keep records. Hold invoices and entry documents for at least five years — CBP can audit, and a clean paper trail is your defense.
A good China supplier makes this painless: it ships under the correct HTS code, provides the commercial invoice and origin data, and can recommend a broker. The full sourcing workflow — vetting, landed-cost math, and quality gates — is in our step-by-step outsourcing guide.
How to Lower Your Landed Cost
Classify correctly, first. The right HTS code is the single biggest duty lever — a few digits can swing the rate by 20% or more. Pay a broker to get it right before you order.
Consolidate. Three small air shipments cost far more than one. Batch your orders and let LCL or FCL absorb the freight.
Use the right Incoterm. DDP for one-offs, FOB/CIF with your own broker for repeat volume. The control pays for itself.
Declare accurately. Under-declaring value to save duty is a false economy — CBP adjusts, fines, and delays; the interest and penalties erase any saving.
Plan around the calendar. Sea freight peaks ahead of the September–October buying season; air is steadier but always dear. Timing orders around the freight cycle is free margin.
The honest bottom line: even with 2026 tariffs, most labor-intensive CNC work still lands cheaper from China than domestic quoting — but the margin is thinner than in 2024, and the duty line deserves the same attention as the machining quote. Our China vs USA comparison runs the full math.
FAQ
Is the $800 de minimis exemption still available for CNC parts from China?
No. The duty-free de minimis threshold was suspended for China and Hong Kong on May 2, 2025, and for all other countries on August 29, 2025. Every Chinese-origin shipment — including a single $50 prototype — now requires formal entry, a 10-digit HTS code, and payment of all applicable duties. “Prototype” is not a tariff category: a sample bracket clears as a physical product with a material, a function, and a classification, and it pays duty like any production part.
FOB vs DDP — which is better for CNC parts from China?
It depends on who you want managing freight and customs. FOB (Free On Board) means the supplier is responsible until the goods are loaded at the Chinese port; you then own the ocean or air freight, insurance, and US import clearance. DDP (Delivered Duty Paid) means the supplier handles everything to your door, duties included — convenient, but the duty and freight are priced in, usually with a margin. For small prototype orders, DDP is often worth the convenience. For production volumes, FOB (or CIF) with your own customs broker is usually cheaper and more transparent, because you see the real freight and duty line items.
How much does it cost to ship CNC parts from China to the US?
In August 2026, express courier runs roughly $8.50–15/kg (2–5 days), air freight $3.50–8/kg (5–10 days airport-to-door), and ocean LCL around $130/CBM, with FCL containers at roughly $4,600–5,600 (14–22 days to the West Coast). The working rule: prototypes and urgent small batches fly — freight adds a few dollars per part — while production volumes sail, where freight per part falls to cents. Rates move constantly, so any serious quote should include current freight.
What tariffs apply to CNC machined parts from China in 2026?
The main layer is Section 301: most machined metal parts carry a 25% additional duty, with some categories higher. On top of that, Section 232 metals tariffs apply to steel (25–50%) and aluminum (10–25%) content where applicable, plus the standard MFN duty for your HTS code. Two things changed recently: the $800 de minimis exemption is gone (May 2025), and the IEEPA “fentanyl” tariffs were struck down by the Supreme Court in February 2026, so they are no longer collected. Rates are layered and classification-specific — have a broker price your exact HTS code before comparing suppliers.
How long does shipping from China to the US take?
Express courier: 2–5 days door-to-door. Air freight: 5–10 days airport-to-door. Ocean FCL to the US West Coast: about 14–22 days port-to-port, plus 5–10 days for customs and inland delivery. Ocean to the East Coast: 25–35 days or more. Add machining time on top — typically 3–7 days for prototypes and 2–4 weeks for production — to get the real end-to-end calendar.
Do I need a customs broker to import CNC parts?
For anything above trivial value, yes in practice. A licensed customs broker files your entry, assigns the correct HTS code, calculates duty, and keeps you compliant. Since de minimis ended, even small shipments need formal entry, and getting the HTS code wrong is the most common — and most expensive — import mistake. Your supplier can recommend one, or use your own; either way, the broker’s fee is small next to the duty a correct classification can save you.
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Sources
Standards and references behind the numbers on this page.
- Learning Resources, Inc. v. Trump (No. 24-1287), US Supreme Court opinion, February 20, 2026 (PDF) — the ruling that IEEPA does not authorize the reciprocal tariffs — why Section 301 and Section 232 duties are what remain
- USTR, China Section 301 — Tariff Actions and Exclusion Process — the 25% Section 301 duty on machined parts and the exclusion process
- Executive Order 14324, Suspending Duty-Free De Minimis Treatment for All Countries (July 2025) — the end of the $800 de minimis exemption, effective August 29, 2025
Parts Machined, Packed, and Shipped — Duty Included or Not
IsoCNC quotes FOB or DDP, ships express, air, or sea, and provides the HTS code with every order so your broker prices duty with certainty. Send the drawing; an engineer reviews every RFQ, typically within 1–2 business days.