In a televised address from the Rose Garden with a U.S. flag as the backdrop, President Trump plunged the world into uncharted territory by forcefully rejecting unfettered free trade as part of a broader realignment of U.S. interests.

Trump unveiled a 10% tariff that will apply to most countries and imposed harsher rates on a long list of trading partners including China, the European Union and Japan. The expansive measures — which follow tariffs on autos, aluminum and steel announced in March — roiled markets and raised the prospect of a global trade war. The S&P 500 Index plummeted 4.84% on April 3, 2025, extending year-to-date losses.

President Trump’s effort to revive U.S. manufacturing and raise government revenue via tariffs will test longstanding trade relations. Tariff uncertainty has caused businesses to pause capital spending and hiring plans. Consumer spending, which represents about two-thirds of the U.S. economy, also appears to be slowing.

Nevertheless, investors shouldn’t extrapolate too much from the uncertainty. For one, we are in the early days of Trump 2.0, and the ultimate outcome may differ from the initial headlines. There will likely be more tariff turbulence throughout Trump’s presidency. To help make sense of it all, we answer common questions about tariffs and their potential implications for the economy, markets and investors.

1.   What are tariffs and how are they used?

Tariffs are essentially taxes on goods imported from other countries. They are used to help protect domestic producers from foreign competition, among other purposes.

We identified four motivations for tariffs and what they could mean for the investment environment: Decoupling, rebalancing, negotiating and funding. For instance, tariffs used for negotiating purposes are unlikely to persist over long periods of time while those part of a larger decoupling process could be here to stay.

Our base case is that the United States can weather changes to trade policies, though higher tariffs would likely dampen economic activity and raise import prices. The U.S. has the advantages of size, economic resilience and consumers with money to spend. Businesses have also ramped up investments in the U.S., both domestically and abroad from companies eager to maintain access to the world’s largest economy.

However, the ambiguity caused by shifting trade policies has already affected business and consumer confidence, with potential negative consequences for the U.S. economy and markets.

The fallout for other countries also remains uncertain, particularly those that rely heavily on the U.S. for trade, such as Mexico and Canada, where exports to the U.S. account for around 20% to 25% of GDP. For most European economies, exports to the U.S. make up approximately 2% to 3% of their GDP. We are likely to see looser macroeconomic policy from some countries to counter the negative effects of these tariffs. Germany, for example, has relaxed its fiscal policy dramatically and laid out plans to increase spending for infrastructure and defense, in part to reduce reliance on exports for growth.

2. Why is the U.S. trade deficit so high?

If there’s one number to know about tariffs, it’s the U.S. trade deficit for goods. That figure hit $1.1 trillion in 2024 as Americans bought imported products and a strong U.S. dollar weighed on exports. The U.S. has run a trade deficit every year since the 1970s.

Economists note the high trade deficit may be a sign of U.S. economic strength — indicating consumers are buying — but the figure is nonetheless why tariffs are central to Trump’s economic agenda. Other countries rely on global trade far more than the United States, and the administration aims to leverage America’s economic position as a tool to achieve a more balanced relationship with its trading partners.

Still, the U.S. runs the world’s largest current account deficit, which is the counterpart of huge foreign capital inflows into the U.S. If the U.S. wants to reduce its deficit, it will likely mean smaller capital inflows and a weaker dollar.

Trump’s novel use of emergency orders to implement or remove tariffs has unnerved markets. Prior administrations have used tariffs to varying degrees, but under laws that required detailed analysis, which allowed more time for companies and stakeholders to respond. Whatever the method, tariffs may represent a pivot to an isolationist-leaning policy that could have long-term ramifications for investment portfolios.

3. Do tariffs cause inflation?

The short answer is yes, but how it plays out is more complex.

In the event of a one-time tariff, prices would likely increase modestly but then even out over time. A more worrisome development is a trade war scenario, where tariffs ratchet higher year to year. That, in turn, could lead to higher long-term inflation with a knock-on effect of rising interest rates.

Economists agree the cost of tariffs is largely paid for by a combination of consumers and companies willing to accept lower profit margins to sell products. A common estimate is that 30% to 50% of the cost is passed on to consumers, though the rate may be higher for products with fewer substitutes. Recent research has shown that the 2018–2019 tariffs were mostly passed on to U.S. consumers.

Trump’s decision to impose tariffs on imported washing machines, but not dryers, in January 2018, is an often-cited case study from the University of Chicago and the Federal Reserve. The study found domestic U.S. manufacturers raised prices to match competitors, despite not being tariffed. Moreover, prices of dryers also increased as manufacturers may have used tariffs to raise prices opportunistically or split the increases between the washers and dryers.

The value of the U.S. dollar has also changed in reaction to tariff headlines. Higher tariffs generally lead to a stronger dollar since they lower demand for imports priced in foreign currency. Conversely, limiting tariffs lowers the dollar’s value as demand for foreign currency increases. A strong dollar could help offset some tariff-related costs for consumers, similar to the way U.S. tourists benefit from a strong dollar when traveling abroad.

4. What is trade reciprocity and how will it unfold?

At face value, the concept of trade reciprocity is simple: We charge you the same tariffs that you charge us.

The Trump administration aims to rebalance tariffs between the U.S. and other countries to make them reciprocal. Such a move bucks 75 years of multilateral U.S. trade policy and sidesteps rules of the World Trade Organization, the successor to the General Agreement on Tariffs and Trade of 1947.

This change in strategy is happening because the U.S. administration believes the balance has tipped too far as key American industries face steep barriers to selling their products abroad. Take cars, for example. The EU currently imposes a 10% tariff on U.S. cars sold in their markets compared to the 2.5% rate imposed by the U.S. on imported European autos.

It’s unclear whether Trump’s definition of reciprocity would include value-added tax (VAT) rates charged by many countries on domestic purchases. These rates are generally applied at each stage of production, versus a U.S. sales tax which is levied at the final sale. Many economists argue that VATs aren’t taxes on imports, so they aren’t the equivalent of tariffs.

Tariffs on major trading partners such as China, the EU, Canada and Mexico can reduce U.S. trade deficits and boost domestic production by giving local firms an edge over imports.

They are also likely to invite retaliation, such as Canada’s removal of U.S. liquor from its shelves. China could ban critical mineral exports to the U.S., decrease purchases of airplanes and agriculture products, and increase investigations of U.S.-based companies with exposure to China, including Apple, Starbucks and Tesla.

5. How do tariffs affect the stock market?

Investors may be experiencing déjà vu as tariffs make headlines. The first Trump administration’s tariffs on China sparked a trade war that whipsawed markets and dominated the news, much like now.

How did markets respond? Volatility rose in 2018, driven by the trade war and a slowdown in China’s economy, causing the S&P 500 Index to fall 4.4%. But the index recovered sharply in 2019, up 31.1%, as trade deals were announced, and consumer spending remained steady. In both years, inflation was muted in the aggregate, with the annual consumer price index ranging from 1.50% to 2.85% in 2018 and 2019.

The world has changed since that initial round of tariffs. The impact of the pandemic, wars in Ukraine and the Middle East, and the greatest inflation shock in decades continues to ripple through the economy. How tariffs and federal spending cuts will affect growth is even more uncertain given the evolving nature of Trump’s policies.

The lesson may be that in times like these, it’s important to be clear about what we do and don’t know — recognizing that tariffs are just one part of the equation. Ultimately, the U.S. stock market has proven to be remarkably resilient over time. Focusing on investment principles such as diversification and staying invested in the face of market volatility become more essential to achieving long-term investment goals.

Read important disclosures