HTS Planning Reference · apparel

HTS 6109.90: Knit t-shirts of polyester or other man-made fiber

Planning reference notice: DimMath HTS pages are planning references for ecommerce importers. They are not binding customs rulings and do not replace a licensed customs broker or CBP classification decision.

Quick Planning Summary

HTS Code

6109.90

Code Level

HTS8

General Duty Rate

32%

Rate Type

ad valorem

What This Row May Cover

Knit t-shirts of polyester or other man-made fiber.

Common product synonyms:

polyester t-shirt performance tee dry fit shirt

Common Materials

polyester, man-made, knit

Primary Uses

clothing, casual

May fit products such as listed above. Verify material, construction, and principal use before relying on this row.

Official HTS Description

T-shirts, singlets and other vests, knitted or crocheted, of other textile materials

Source: USITC Harmonized Tariff Schedule of the United States — heading/subheading planning snapshot (Column 1 general). Not a binding classification. Snapshot date: 2026-09-12

Classification Caution & Scope Notes

Fiber content on the label is the classification fork versus cotton 6109.10.

Small changes in material, construction, intended use, or packaging can move a product to a different HTS line.

China-Origin Additional-Duty Mapping

Stored China add-on mapping found

Status

Stored China add-on mapping found

Additional Duty

+7.5%

Total Stored Duty

+7.5%

Chapter 99 Code

9903.88.16

Measure Type

Section 301

Exclusion Status

none

Mapping Confidence

medium

Verified Date

2026-09-12

Scope note: Man-made fiber knit T-shirts.

Source label: USTR Section 301 / HTSUS Chapter 99 planning snapshot. Not a live exclusion search and not a binding customs ruling.

DimMath stores this as a planning mapping for China-origin goods. Verify final HTS classification, Chapter 99 treatment, exclusions, and current broker/CBP treatment before ordering inventory.

Model Landed Cost with This HTS Rate

Pass the general base duty rate of 32% directly into the DimMath Import Duty Calculator to model customs duties, MPF, and source country comparisons.

Estimate landed cost with this base rate (32%) → Compare source countries for this product

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Open Rate Data

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Cite this DimMath resource

Plain citation

DimMath. “HTS 6109.90: Knit t-shirts of polyester or other man-made fiber Duty Planning.” Updated 2026-09-12. https://dimmath.com/hts/6109-90/

HTML link

<a href="https://dimmath.com/hts/6109-90/">DimMath HTS 6109.90 Duty Planning</a>

Source note: DimMath HTS planning pages are planning references for ecommerce importers. They are not binding customs rulings and do not replace a licensed customs broker or CBP classification decision. Verify final classification and entry treatment before ordering inventory.

Frequently Asked Questions

Is HTS 6109.90 a final customs classification?

No. DimMath shows planning rows from its HTS lookup dataset. Final classification depends on exact product material, construction, use, and CBP/broker review.

Can DimMath calculate duty from this HTS row?

Only when the general rate is a clean ad valorem percentage. Complex or compound rates require manual verification.

Does China origin change the duty?

It can. Some China-origin goods require Chapter 99, Section 301, exclusion, or trade-remedy review. DimMath does not infer unverified add-ons from broad categories.

What should I do before ordering inventory?

Confirm the HTS classification, verify any additional-duty treatment, then run the Import Duty Calculator and Total Landed Cost Calculator.