It may only be July, but Christmas is fast-approaching for U.S. retailers — and the threat of an escalating trade war with China has industries that have so far been spared increasingly worried their goods will be next on the naughty list.

President Donald Trump's threat to slap tariffs on at least another $200 billion in goods from China — on top of the $34 billion that went into effect on Friday — is ramping up fears that the all-important holiday-shopping season will be a casualty in the battle with America's largest trading partner.

"Retailers have already made the buying decisions for what will be on the store shelves in the fall for Christmas holidays," said David French, senior vice president of government relations at the National Retail Federation (NRF). If items aren't imported before any possible tariffs go into effect, it will lead to "higher prices, a cut into consumer spending and a cut into consumer confidence — and we are very concerned about it."

The Trump administration has so far made good on its promise to keep consumer goods off the initial round of tariffs, with the 25 percent levy on $34 billion of imports that went into effect Friday focused on machinery. But if a new trade agreement isn't reached, Trump has threatened to add a 10 percent tariff on an additional $200 billion of Chinese-made goods, potentially doubling that to as much as $400 billion in the event of Chinese retaliation. That would capture about 80 percent of all Chinese imports and ensure some sneakers, clothing, smartphones and even toys would be targeted.

"It creates a lot of uncertainty for everybody," said Gary Atkinson, chief executive of Fort Lauderdale, Fla.-based Singing Machine Co., which sources 100 percent of its karaoke machines and other gear from China. "Hopefully, our product line never shows up on one of those list of tariffs."

But if it does, the small publicly traded company would go down the same path that thousands of others have since Trump began enacting tariffs on other countries like Mexico and Canada in a push to reduce the U.S. trade deficit. Atkinson said that he would likely have to raise prices, which would decrease demand — a big risk during the critical holiday shopping season. That would cause the company to place fewer orders from its Chinese suppliers, which would in turn hurt them, too.

"It would have a trickling effect all the way down," ­Atkinson said.

One major issue is that supply chains can't be moved overnight, especially for a retail sector that tends to place orders months before items arrive in stores. U.S. companies have spent years forging business relationships overseas and have come to rely on the expertise and reliability of Chinese factories

In addition to the tariffs on $34 billion of Chinese goods that began at 12:01 a.m. in Washington, an additional set of duties on $16 billion of goods against the nation is still pending. China has said it will hit back matching each of those amounts in tit-for-tat tariffs against the U.S., thus making official a trade war that has been brewing since March.

"Everybody's anxious about the administration's actions here boomeranging and hurting American consumers as they go shopping for the holiday season," French said.

Hun Quach, vice president of international trade for the Retail Industry Leaders Association, said the "barrage of tariffs coming from all directions" between the U.S. and China, the European Union and NAFTA partners are a threat to U.S. prosperity and "will imperil millions of jobs if allowed to persist."