Tariff Policy & Law

Tariff

Tariff A tax imposed by a government on imported or exported goods to protect domestic industries, raise revenue, or achieve other economic, political, or social objectives.

Also Known As:Customs Duty, Import Tax, Trade Duty
Last Updated:April 2025

Latest Update (March 2025)

The U.S. Trade Representative announced a review of all Section 301 tariffs on Chinese goods, while simultaneously imposing new tariffs on critical mineral imports from several countries under Section 232.

Read Full Analysis

What It Means

A tariff is a tax or duty imposed by a government on goods imported from or exported to other countries. In practice, most modern tariffs are placed on imports rather than exports.

Primary Types of Tariffs

Tariffs come in different forms, each calculated differently and serving various purposes:

Ad Valorem Tariff

A percentage of the value of the imported goods

Example:

15% of a $1,000 item = $150 duty

Specific Tariff

A fixed amount per unit quantity of the imported item

Example:

$5 per barrel of oil

Compound Tariff

Combines both ad valorem and specific tariffs

Example:

10% + $2 per kg of cheese

Why Countries Impose Tariffs

Economic Reasons

  • Protect domestic industries from foreign competition
  • Generate government revenue
  • Correct trade imbalances
  • Support infant or strategic industries

Political & Security Reasons

  • National security concerns
  • Retaliation against other countries' trade policies
  • Leverage in trade negotiations
  • Promote self-sufficiency in critical industries

How Tariffs Affect Trade

Increase Product Prices

Tariffs make imported goods more expensive for consumers and businesses, which can lead to higher prices across the economy.

Shift Supply Chains

Companies often relocate production to avoid tariffs, creating new trade patterns and business relationships.

Reduce Trade Volume

Higher tariffs typically result in lower volumes of international trade as the increased costs make some transactions unprofitable.

Risk Trade Retaliation

Countries often respond to new tariffs with their own tariffs, potentially escalating into trade wars that can have widespread economic impacts.

Historical Timeline

1789

First U.S. Tariff Act

The Hamilton Tariff established a 5% duty on most imports, primarily for revenue generation

1832-1932

Tariff Era

Tariffs were the main source of federal revenue and often exceeded 40% on many goods

1930

Smoot-Hawley Tariff Act

Raised U.S. tariffs to record levels, deepening the Great Depression

1947

GATT Formation

The General Agreement on Tariffs and Trade began the process of reducing global tariffs

1995

World Trade Organization (WTO) Created

Replaced GATT and established a more structured framework for international trade and tariff regulation

2018-2025

Section 301 & 232 Tariffs

U.S. implemented substantial tariffs on China and various other countries, reshaping global trade patterns

Real-World Example

Example: Importing Furniture from Vietnam to the United States

Let's walk through a practical example of how tariffs work using a furniture import scenario.

Step-by-Step Import Process

Determining the Correct Tariff

1

Find the HTS Classification

A U.S. furniture importer identifies the correct Harmonized Tariff Schedule (HTS) code: 9403.60.8081 - "Wooden bedroom furniture, other than chairs"

2

Check Regular Duty Rate

The importer looks up the Most Favored Nation (MFN) duty rate: 0% for Vietnam

3

Check for Special Tariffs

The importer also confirms there are no Section 301, anti-dumping, or countervailing duties on this product from Vietnam

Duty Calculation Example

Import Details
Product: Wooden bedroom sets
Origin: Vietnam
HTS Code: 9403.60.8081
Quantity: 100 sets
Value per set: $1,200
Total value: $120,000
Fees Calculation
Basic Duty (0% MFN rate): $0
Merchandise Processing Fee (0.3464%): $415.68
Harbor Maintenance Fee (0.125%): $150.00
Total import fees: $565.68

Less than 0.5% of total shipment value, thanks to duty-free status under Most Favored Nation treatment

Comparative Scenario: Same Product from China

If the same furniture were imported from China instead of Vietnam:

Vietnam Import
  • Basic Duty: $0 (0%)
  • Total Fees: $565.68
  • Effective Rate: 0.47% of value
China Import
  • Basic Duty: $0 (0%)
  • Anti-dumping Duty: $93,600 (78%)
  • Total Fees: $94,165.68
  • Effective Rate: 78.47% of value

This example shows how dramatically tariffs can affect sourcing decisions. The same bedroom furniture from China would cost nearly 78% more to import due to anti-dumping duties that have been in place since 2005. This explains why Vietnam has become a major furniture exporter to the United States.

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Frequently Asked Questions

The terms 'tariff' and 'duty' are often used interchangeably, though there are subtle differences. A tariff technically refers to the schedule or list of rates that are charged on imported goods, while duty is the actual tax collected. In everyday usage, however, both terms refer to taxes on international trade. Most trade professionals use both terms to mean the same thing: a tax on imported goods.

No, many goods enter the United States duty-free, either because they have a 0% Most Favored Nation (MFN) rate or because they qualify for duty-free treatment under free trade agreements or special preference programs. According to recent data, about 70% of all U.S. imports (by value) enter duty-free. However, even duty-free goods still incur fees like the Merchandise Processing Fee and Harbor Maintenance Fee.

To determine the correct tariff rate, you need to: 1) Find the proper Harmonized Tariff Schedule (HTS) classification code for your product, 2) Check if any preferential trade agreements apply, 3) Verify if any special tariffs like anti-dumping, countervailing, or Section 301/232 duties apply. The process can be complex, and many importers use licensed customs brokers or trade consultants to ensure accurate classification and duty assessment.

The economic impact of tariffs is complex and depends on various factors. Tariffs can protect domestic industries and workers from foreign competition and provide government revenue. However, they also raise prices for consumers and businesses that use imported inputs, potentially reducing purchasing power and competitiveness. Most economists agree that while targeted, temporary tariffs can sometimes benefit specific sectors, broad, long-term tariffs typically create more economic costs than benefits for the overall economy.

Legally, tariffs are paid by the importer of record, typically the U.S. company importing the goods. However, the economic burden (or incidence) of tariffs may be shared between foreign producers, importers, and consumers, depending on market conditions. Studies of recent tariff increases suggest that in many cases, U.S. businesses and consumers bear most of the cost through higher prices, though the exact distribution varies by product and market. Foreign producers may absorb some of the tariff cost by reducing their prices to maintain market share.

Key Facts

Most Common FormAd Valorem (percentage-based)
Average U.S. Tariff Rate2.0% (2023)
Highest U.S. TariffsTobacco products (350%), peanuts (163.8%)
Administering AgencyU.S. Customs and Border Protection (CBP)
U.S. Tariff Revenue$79 billion (fiscal year 2022)